PPC/e500: Drop support for this architecture.

doc/ext_jit.html

@@ -153,7 +153,7 @@ Contains the target OS name:
 <h3 id="jit_arch"><tt>jit.arch</tt></h3>
 <p>
 Contains the target architecture name:
-"x86", "x64", "arm", "ppc", "ppcspe", or "mips".
+"x86", "x64", "arm", "ppc", or "mips".
 </p>
 
 <h2 id="jit_opt"><tt>jit.opt.*</tt> &mdash; JIT compiler optimization control</h2>

doc/install.html

@@ -141,13 +141,6 @@ operating systems, CPUs and compilers:
 <td class="compatos">XEDK (<a href="#xbox360">Xbox 360</a>)</td>
 </tr>
 <tr class="odd">
-<td class="compatcpu"><a href="#cross2">PPC/e500v2</a></td>
-<td class="compatos">GCC 4.3+</td>
-<td class="compatos">GCC 4.3+</td>
-<td class="compatos compatno">&nbsp;</td>
-<td class="compatos compatno">&nbsp;</td>
-</tr>
-<tr class="even">
 <td class="compatcpu"><a href="#cross2">MIPS</a></td>
 <td class="compatos">GCC 4.3+</td>
 <td class="compatos">GCC 4.3+</td>
@@ -387,8 +380,6 @@ make HOST_CC="gcc -m32" CROSS=arm-linux-gnueabihf-
 
 # PPC
 make HOST_CC="gcc -m32" CROSS=powerpc-linux-gnu-
-# PPC/e500v2 (fast interpreter only)
-make HOST_CC="gcc -m32" CROSS=powerpc-e500v2-linux-gnuspe-
 
 # MIPS big-endian
 make HOST_CC="gcc -m32" CROSS=mips-linux-

doc/luajit.html

@@ -172,7 +172,7 @@ LuaJIT is Copyright © 2005-2014 Mike Pall, released under the
 <tr><td>GCC</td><td>CLANG<br>LLVM</td><td>MSVC</td></tr>
 </table>
 <table class="feature cpu">
-<tr><td>x86</td><td>x64</td><td>ARM</td><td>PPC</td><td>e500</td><td>MIPS</td></tr>
+<tr><td>x86</td><td>x64</td><td>ARM</td><td>PPC</td><td>MIPS</td></tr>
 </table>
 <table class="feature fcompat">
 <tr><td>Lua&nbsp;5.1<br>API+ABI</td><td>+&nbsp;JIT</td><td>+&nbsp;BitOp</td><td>+&nbsp;FFI</td><td>Drop-in<br>DLL/.so</td></tr>

src/Makefile

@@ -50,7 +50,6 @@ CCOPT_x64=
 CCOPT_arm=
 CCOPT_arm64=
 CCOPT_ppc=
-CCOPT_ppcspe=
 CCOPT_mips=
 #
 CCDEBUG=
@@ -224,9 +223,6 @@ else
 ifneq (,$(findstring LJ_TARGET_PPC ,$(TARGET_TESTARCH)))
   TARGET_LJARCH= ppc
 else
-ifneq (,$(findstring LJ_TARGET_PPCSPE ,$(TARGET_TESTARCH)))
-  TARGET_LJARCH= ppcspe
-else
 ifneq (,$(findstring LJ_TARGET_MIPS ,$(TARGET_TESTARCH)))
   ifneq (,$(findstring MIPSEL ,$(TARGET_TESTARCH)))
     TARGET_ARCH= -D__MIPSEL__=1
@@ -240,7 +236,6 @@ endif
 endif
 endif
 endif
-endif
 
 ifneq (,$(findstring LJ_TARGET_PS3 1,$(TARGET_TESTARCH)))
   TARGET_SYS= PS3

src/host/buildvm.c

@@ -63,8 +63,6 @@ static int collect_reloc(BuildCtx *ctx, uint8_t *addr, int idx, int type);
 #include "../dynasm/dasm_arm64.h"
 #elif LJ_TARGET_PPC
 #include "../dynasm/dasm_ppc.h"
-#elif LJ_TARGET_PPCSPE
-#include "../dynasm/dasm_ppc.h"
 #elif LJ_TARGET_MIPS
 #include "../dynasm/dasm_mips.h"
 #else
@@ -115,7 +113,7 @@ static const char *sym_decorate(BuildCtx *ctx,
       name[0] = '@';
     else
       *p = '\0';
-#elif (LJ_TARGET_PPC  || LJ_TARGET_PPCSPE) && !LJ_TARGET_CONSOLE
+#elif LJ_TARGET_PPC && !LJ_TARGET_CONSOLE
     /* Keep @plt. */
 #else
     *p = '\0';

src/host/buildvm_asm.c

@@ -130,7 +130,7 @@ static void emit_asm_wordreloc(BuildCtx *ctx, uint8_t *p, int n,
 	    ins, sym);
     exit(1);
   }
-#elif LJ_TARGET_PPC || LJ_TARGET_PPCSPE
+#elif LJ_TARGET_PPC
 #if LJ_TARGET_PS3
 #define TOCPREFIX "."
 #else
@@ -313,10 +313,7 @@ void emit_asm(BuildCtx *ctx)
 #if !(LJ_TARGET_PS3 || LJ_TARGET_PSVITA)
     fprintf(ctx->fp, "\t.section .note.GNU-stack,\"\"," ELFASM_PX "progbits\n");
 #endif
-#if LJ_TARGET_PPCSPE
-    /* Soft-float ABI + SPE. */
-    fprintf(ctx->fp, "\t.gnu_attribute 4, 2\n\t.gnu_attribute 8, 3\n");
-#elif LJ_TARGET_PPC && !LJ_TARGET_PS3
+#if LJ_TARGET_PPC && !LJ_TARGET_PS3
     /* Hard-float ABI. */
     fprintf(ctx->fp, "\t.gnu_attribute 4, 1\n");
 #endif

src/jit/bcsave.lua

@@ -63,7 +63,7 @@ local map_type = {
 }
 
 local map_arch = {
-  x86 = true, x64 = true, arm = true, ppc = true, ppcspe = true,
+  x86 = true, x64 = true, arm = true, ppc = true,
   mips = true, mipsel = true,
 }
 
@@ -202,7 +202,7 @@ typedef struct {
   local is64, isbe = false, false
   if ctx.arch == "x64" then
     is64 = true
-  elseif ctx.arch == "ppc" or ctx.arch == "ppcspe" or ctx.arch == "mips" then
+  elseif ctx.arch == "ppc" or ctx.arch == "mips" then
     isbe = true
   end
 
@@ -237,7 +237,7 @@ typedef struct {
   hdr.eendian = isbe and 2 or 1
   hdr.eversion = 1
   hdr.type = f16(1)
-  hdr.machine = f16(({ x86=3, x64=62, arm=40, ppc=20, ppcspe=20, mips=8, mipsel=8 })[ctx.arch])
+  hdr.machine = f16(({ x86=3, x64=62, arm=40, ppc=20, mips=8, mipsel=8 })[ctx.arch])
   if ctx.arch == "mips" or ctx.arch == "mipsel" then
     hdr.flags = 0x50001006
   end

src/lib_jit.c

@@ -706,8 +706,6 @@ static uint32_t jit_cpudetect(lua_State *L)
   flags |= JIT_F_ROUND;
 #endif
 #endif
-#elif LJ_TARGET_PPCSPE
-  /* Nothing to do. */
 #elif LJ_TARGET_MIPS
 #if LJ_HASJIT
   /* Compile-time MIPS CPU detection. */

src/lj_arch.h

@@ -22,11 +22,9 @@
 #define LUAJIT_ARCH_ARM64	4
 #define LUAJIT_ARCH_arm64	4
 #define LUAJIT_ARCH_PPC		5
-#define LUAJIT_ARCH_ppc		6
-#define LUAJIT_ARCH_PPCSPE	6
-#define LUAJIT_ARCH_ppcspe	6
-#define LUAJIT_ARCH_MIPS	7
-#define LUAJIT_ARCH_mips	7
+#define LUAJIT_ARCH_ppc		5
+#define LUAJIT_ARCH_MIPS	6
+#define LUAJIT_ARCH_mips	6
 
 /* Target OS. */
 #define LUAJIT_OS_OTHER		0
@@ -48,11 +46,7 @@
 #elif defined(__aarch64__)
 #define LUAJIT_TARGET	LUAJIT_ARCH_ARM64
 #elif defined(__ppc__) || defined(__ppc) || defined(__PPC__) || defined(__PPC) || defined(__powerpc__) || defined(__powerpc) || defined(__POWERPC__) || defined(__POWERPC) || defined(_M_PPC)
-#ifdef __NO_FPRS__
-#define LUAJIT_TARGET	LUAJIT_ARCH_PPCSPE
-#else
 #define LUAJIT_TARGET	LUAJIT_ARCH_PPC
-#endif
 #elif defined(__mips__) || defined(__mips) || defined(__MIPS__) || defined(__MIPS)
 #define LUAJIT_TARGET	LUAJIT_ARCH_MIPS
 #else
@@ -260,26 +254,6 @@
 #define LJ_ARCH_XENON		1
 #endif
 
-#elif LUAJIT_TARGET == LUAJIT_ARCH_PPCSPE
-
-#error "The PPC/e500 port is broken and will be abandoned with LuaJIT 2.1"
-#define LJ_ARCH_NAME		"ppcspe"
-#define LJ_ARCH_BITS		32
-#define LJ_ARCH_ENDIAN		LUAJIT_BE
-#ifndef LJ_ABI_SOFTFP
-#define LJ_ABI_SOFTFP		1
-#endif
-#define LJ_ABI_EABI		1
-#define LJ_TARGET_PPCSPE	1
-#define LJ_TARGET_EHRETREG	3
-#define LJ_TARGET_JUMPRANGE	25	/* +-2^25 = +-32MB */
-#define LJ_TARGET_MASKSHIFT	0
-#define LJ_TARGET_MASKROT	1
-#define LJ_TARGET_UNIFYROT	1	/* Want only IR_BROL. */
-#define LJ_ARCH_NUMMODE		LJ_NUMMODE_SINGLE
-#define LJ_ARCH_NOFFI		1	/* NYI: comparisons, calls. */
-#define LJ_ARCH_NOJIT		1
-
 #elif LUAJIT_TARGET == LUAJIT_ARCH_MIPS
 
 #if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL)
@@ -356,7 +330,7 @@
 #if defined(_ILP32)
 #error "No support for ILP32 model on ARM64"
 #endif
-#elif LJ_TARGET_PPC || LJ_TARGET_PPCSPE
+#elif LJ_TARGET_PPC
 #if defined(_SOFT_FLOAT) || defined(_SOFT_DOUBLE)
 #error "No support for PowerPC CPUs without double-precision FPU"
 #endif
@@ -366,6 +340,9 @@
 #if defined(_LP64)
 #error "No support for PowerPC 64 bit mode"
 #endif
+#ifdef __NO_FPRS__
+#error "No support for PPC/e500 anymore (use LuaJIT 2.0)"
+#endif
 #elif LJ_TARGET_MIPS
 #if defined(__mips_soft_float)
 #error "No support for MIPS CPUs without FPU"

src/lj_ccall.c

@@ -338,42 +338,6 @@
   if (ctype_isfp(ctr->info) && ctr->size == sizeof(float)) \
     ctr = ctype_get(cts, CTID_DOUBLE);  /* FPRs always hold doubles. */
 
-#elif LJ_TARGET_PPCSPE
-/* -- PPC/SPE calling conventions ----------------------------------------- */
-
-#define CCALL_HANDLE_STRUCTRET \
-  cc->retref = 1;  /* Return all structs by reference. */ \
-  cc->gpr[ngpr++] = (GPRArg)dp;
-
-#define CCALL_HANDLE_COMPLEXRET \
-  /* Complex values are returned in 2 or 4 GPRs. */ \
-  cc->retref = 0;
-
-#define CCALL_HANDLE_COMPLEXRET2 \
-  memcpy(dp, sp, ctr->size);  /* Copy complex from GPRs. */
-
-#define CCALL_HANDLE_STRUCTARG \
-  rp = cdataptr(lj_cdata_new(cts, did, sz)); \
-  sz = CTSIZE_PTR;  /* Pass all structs by reference. */
-
-#define CCALL_HANDLE_COMPLEXARG \
-  /* Pass complex by value in 2 or 4 GPRs. */
-
-/* PPC/SPE has a softfp ABI. */
-#define CCALL_HANDLE_REGARG \
-  if (n > 1) {  /* Doesn't fit in a single GPR? */ \
-    lua_assert(n == 2 || n == 4);  /* int64_t, double or complex (float). */ \
-    if (n == 2) \
-      ngpr = (ngpr + 1u) & ~1u;  /* Only align 64 bit value to regpair. */ \
-    else if (ngpr + n > maxgpr) \
-      ngpr = maxgpr;  /* Prevent reordering. */ \
-  } \
-  if (ngpr + n <= maxgpr) { \
-    dp = &cc->gpr[ngpr]; \
-    ngpr += n; \
-    goto done; \
-  }
-
 #elif LJ_TARGET_MIPS
 /* -- MIPS calling conventions -------------------------------------------- */
 

src/lj_ccall.h

@@ -80,16 +80,6 @@ typedef union FPRArg {
 typedef intptr_t GPRArg;
 typedef double FPRArg;
 
-#elif LJ_TARGET_PPCSPE
-
-#define CCALL_NARG_GPR		8
-#define CCALL_NARG_FPR		0
-#define CCALL_NRET_GPR		4	/* For softfp complex double. */
-#define CCALL_NRET_FPR		0
-#define CCALL_SPS_FREE		0	/* NYI */
-
-typedef intptr_t GPRArg;
-
 #elif LJ_TARGET_MIPS
 
 #define CCALL_NARG_GPR		4

src/lj_ctype.h

@@ -263,7 +263,7 @@ typedef struct CTState {
 /* -- Predefined types ---------------------------------------------------- */
 
 /* Target-dependent types. */
-#if LJ_TARGET_PPC || LJ_TARGET_PPCSPE
+#if LJ_TARGET_PPC
 #define CTTYDEFP(_) \
   _(LINT32,		4,	CT_NUM, CTF_LONG|CTALIGN(2))
 #else

src/lj_frame.h

@@ -197,15 +197,6 @@ enum { LJ_CONT_TAILCALL, LJ_CONT_FFI_CALLBACK };  /* Special continuations. */
 #define CFRAME_SIZE		272
 #define CFRAME_SHIFT_MULTRES	3
 #endif
-#elif LJ_TARGET_PPCSPE
-#define CFRAME_OFS_ERRF		28
-#define CFRAME_OFS_NRES		24
-#define CFRAME_OFS_PREV		20
-#define CFRAME_OFS_L		16
-#define CFRAME_OFS_PC		12
-#define CFRAME_OFS_MULTRES	8
-#define CFRAME_SIZE		184
-#define CFRAME_SHIFT_MULTRES	3
 #elif LJ_TARGET_MIPS
 #define CFRAME_OFS_ERRF		124
 #define CFRAME_OFS_NRES		120

src/vm_ppcspe.dasc

@@ -1,3685 +0,0 @@
-|// Low-level VM code for PowerPC/e500 CPUs.
-|// Bytecode interpreter, fast functions and helper functions.
-|// Copyright (C) 2005-2014 Mike Pall. See Copyright Notice in luajit.h
-|
-|.arch ppc
-|.section code_op, code_sub
-|
-|.actionlist build_actionlist
-|.globals GLOB_
-|.globalnames globnames
-|.externnames extnames
-|
-|// Note: The ragged indentation of the instructions is intentional.
-|//       The starting columns indicate data dependencies.
-|
-|//-----------------------------------------------------------------------
-|
-|// Fixed register assignments for the interpreter.
-|// Don't use: r1 = sp, r2 and r13 = reserved and/or small data area ptr
-|
-|// The following must be C callee-save (but BASE is often refetched).
-|.define BASE,		r14	// Base of current Lua stack frame.
-|.define KBASE,		r15	// Constants of current Lua function.
-|.define PC,		r16	// Next PC.
-|.define DISPATCH,	r17	// Opcode dispatch table.
-|.define LREG,		r18	// Register holding lua_State (also in SAVE_L).
-|.define MULTRES,	r19	// Size of multi-result: (nresults+1)*8.
-|
-|// Constants for vectorized type-comparisons (hi+low GPR). C callee-save.
-|.define TISNUM,	r22
-|.define TISSTR,	r23
-|.define TISTAB,	r24
-|.define TISFUNC,	r25
-|.define TISNIL,	r26
-|.define TOBIT,		r27
-|.define ZERO,		TOBIT	// Zero in lo word.
-|
-|// The following temporaries are not saved across C calls, except for RA.
-|.define RA,		r20	// Callee-save.
-|.define RB,		r10
-|.define RC,		r11
-|.define RD,		r12
-|.define INS,		r7	// Overlaps CARG5.
-|
-|.define TMP0,		r0
-|.define TMP1,		r8
-|.define TMP2,		r9
-|.define TMP3,		r6	// Overlaps CARG4.
-|
-|// Saved temporaries.
-|.define SAVE0,		r21
-|
-|// Calling conventions.
-|.define CARG1,		r3
-|.define CARG2,		r4
-|.define CARG3,		r5
-|.define CARG4,		r6	// Overlaps TMP3.
-|.define CARG5,		r7	// Overlaps INS.
-|
-|.define CRET1,		r3
-|.define CRET2,		r4
-|
-|// Stack layout while in interpreter. Must match with lj_frame.h.
-|.define SAVE_LR,	188(sp)
-|.define CFRAME_SPACE,	184	// Delta for sp.
-|// Back chain for sp:	184(sp)	<-- sp entering interpreter
-|.define SAVE_r31,	176(sp)	// 64 bit register saves.
-|.define SAVE_r30,	168(sp)
-|.define SAVE_r29,	160(sp)
-|.define SAVE_r28,	152(sp)
-|.define SAVE_r27,	144(sp)
-|.define SAVE_r26,	136(sp)
-|.define SAVE_r25,	128(sp)
-|.define SAVE_r24,	120(sp)
-|.define SAVE_r23,	112(sp)
-|.define SAVE_r22,	104(sp)
-|.define SAVE_r21,	96(sp)
-|.define SAVE_r20,	88(sp)
-|.define SAVE_r19,	80(sp)
-|.define SAVE_r18,	72(sp)
-|.define SAVE_r17,	64(sp)
-|.define SAVE_r16,	56(sp)
-|.define SAVE_r15,	48(sp)
-|.define SAVE_r14,	40(sp)
-|.define SAVE_CR,	36(sp)
-|.define UNUSED1,	32(sp)
-|.define SAVE_ERRF,	28(sp)	// 32 bit C frame info.
-|.define SAVE_NRES,	24(sp)
-|.define SAVE_CFRAME,	20(sp)
-|.define SAVE_L,	16(sp)
-|.define SAVE_PC,	12(sp)
-|.define SAVE_MULTRES,	8(sp)
-|// Next frame lr:	4(sp)
-|// Back chain for sp:	0(sp)	<-- sp while in interpreter
-|
-|.macro save_, reg; evstdd reg, SAVE_..reg; .endmacro
-|.macro rest_, reg; evldd reg, SAVE_..reg; .endmacro
-|
-|.macro saveregs
-|  stwu sp, -CFRAME_SPACE(sp)
-|  save_ r14; save_ r15; save_ r16; save_ r17; save_ r18; save_ r19
-|  mflr r0; mfcr r12
-|  save_ r20; save_ r21; save_ r22; save_ r23; save_ r24; save_ r25
-|  stw  r0, SAVE_LR; stw r12, SAVE_CR
-|  save_ r26; save_ r27; save_ r28; save_ r29; save_ r30; save_ r31
-|.endmacro
-|
-|.macro restoreregs
-|  lwz r0, SAVE_LR; lwz r12, SAVE_CR
-|  rest_ r14; rest_ r15; rest_ r16; rest_ r17; rest_ r18; rest_ r19
-|  mtlr r0; mtcrf 0x38, r12
-|  rest_ r20; rest_ r21; rest_ r22; rest_ r23; rest_ r24; rest_ r25
-|  rest_ r26; rest_ r27; rest_ r28; rest_ r29; rest_ r30; rest_ r31
-|  addi sp, sp, CFRAME_SPACE
-|.endmacro
-|
-|// Type definitions. Some of these are only used for documentation.
-|.type L,		lua_State,	LREG
-|.type GL,		global_State
-|.type TVALUE,		TValue
-|.type GCOBJ,		GCobj
-|.type STR,		GCstr
-|.type TAB,		GCtab
-|.type LFUNC,		GCfuncL
-|.type CFUNC,		GCfuncC
-|.type PROTO,		GCproto
-|.type UPVAL,		GCupval
-|.type NODE,		Node
-|.type NARGS8,		int
-|.type TRACE,		GCtrace
-|
-|//-----------------------------------------------------------------------
-|
-|// These basic macros should really be part of DynASM.
-|.macro srwi, rx, ry, n; rlwinm rx, ry, 32-n, n, 31; .endmacro
-|.macro slwi, rx, ry, n; rlwinm rx, ry, n, 0, 31-n; .endmacro
-|.macro rotlwi, rx, ry, n; rlwinm rx, ry, n, 0, 31; .endmacro
-|.macro rotlw, rx, ry, rn; rlwnm rx, ry, rn, 0, 31; .endmacro
-|.macro subi, rx, ry, i; addi rx, ry, -i; .endmacro
-|
-|// Trap for not-yet-implemented parts.
-|.macro NYI; tw 4, sp, sp; .endmacro
-|
-|//-----------------------------------------------------------------------
-|
-|// Access to frame relative to BASE.
-|.define FRAME_PC,	-8
-|.define FRAME_FUNC,	-4
-|
-|// Instruction decode.
-|.macro decode_OP4, dst, ins; rlwinm dst, ins, 2, 22, 29; .endmacro
-|.macro decode_RA8, dst, ins; rlwinm dst, ins, 27, 21, 28; .endmacro
-|.macro decode_RB8, dst, ins; rlwinm dst, ins, 11, 21, 28; .endmacro
-|.macro decode_RC8, dst, ins; rlwinm dst, ins, 19, 21, 28; .endmacro
-|.macro decode_RD8, dst, ins; rlwinm dst, ins, 19, 13, 28; .endmacro
-|
-|.macro decode_OP1, dst, ins; rlwinm dst, ins, 0, 24, 31; .endmacro
-|.macro decode_RD4, dst, ins; rlwinm dst, ins, 18, 14, 29; .endmacro
-|
-|// Instruction fetch.
-|.macro ins_NEXT1
-|  lwz INS, 0(PC)
-|   addi PC, PC, 4
-|.endmacro
-|// Instruction decode+dispatch.
-|.macro ins_NEXT2
-|  decode_OP4 TMP1, INS
-|   decode_RB8 RB, INS
-|   decode_RD8 RD, INS
-|  lwzx TMP0, DISPATCH, TMP1
-|   decode_RA8 RA, INS
-|   decode_RC8 RC, INS
-|  mtctr TMP0
-|  bctr
-|.endmacro
-|.macro ins_NEXT
-|  ins_NEXT1
-|  ins_NEXT2
-|.endmacro
-|
-|// Instruction footer.
-|.if 1
-|  // Replicated dispatch. Less unpredictable branches, but higher I-Cache use.
-|  .define ins_next, ins_NEXT
-|  .define ins_next_, ins_NEXT
-|  .define ins_next1, ins_NEXT1
-|  .define ins_next2, ins_NEXT2
-|.else
-|  // Common dispatch. Lower I-Cache use, only one (very) unpredictable branch.
-|  // Affects only certain kinds of benchmarks (and only with -j off).
-|  .macro ins_next
-|    b ->ins_next
-|  .endmacro
-|  .macro ins_next1
-|  .endmacro
-|  .macro ins_next2
-|    b ->ins_next
-|  .endmacro
-|  .macro ins_next_
-|  ->ins_next:
-|    ins_NEXT
-|  .endmacro
-|.endif
-|
-|// Call decode and dispatch.
-|.macro ins_callt
-|  // BASE = new base, RB = LFUNC/CFUNC, RC = nargs*8, FRAME_PC(BASE) = PC
-|  lwz PC, LFUNC:RB->pc
-|  lwz INS, 0(PC)
-|   addi PC, PC, 4
-|  decode_OP4 TMP1, INS
-|   decode_RA8 RA, INS
-|  lwzx TMP0, DISPATCH, TMP1
-|   add RA, RA, BASE
-|  mtctr TMP0
-|  bctr
-|.endmacro
-|
-|.macro ins_call
-|  // BASE = new base, RB = LFUNC/CFUNC, RC = nargs*8, PC = caller PC
-|  stw PC, FRAME_PC(BASE)
-|  ins_callt
-|.endmacro
-|
-|//-----------------------------------------------------------------------
-|
-|// Macros to test operand types.
-|.macro checknum, reg; evcmpltu reg, TISNUM; .endmacro
-|.macro checkstr, reg; evcmpeq reg, TISSTR; .endmacro
-|.macro checktab, reg; evcmpeq reg, TISTAB; .endmacro
-|.macro checkfunc, reg; evcmpeq reg, TISFUNC; .endmacro
-|.macro checknil, reg; evcmpeq reg, TISNIL; .endmacro
-|.macro checkok, label; blt label; .endmacro
-|.macro checkfail, label; bge label; .endmacro
-|.macro checkanyfail, label; bns label; .endmacro
-|.macro checkallok, label; bso label; .endmacro
-|
-|.macro branch_RD
-|  srwi TMP0, RD, 1
-|  add PC, PC, TMP0
-|  addis PC, PC, -(BCBIAS_J*4 >> 16)
-|.endmacro
-|
-|// Assumes DISPATCH is relative to GL.
-#define DISPATCH_GL(field)	(GG_DISP2G + (int)offsetof(global_State, field))
-#define DISPATCH_J(field)	(GG_DISP2J + (int)offsetof(jit_State, field))
-|
-#define PC2PROTO(field)  ((int)offsetof(GCproto, field)-(int)sizeof(GCproto))
-|
-|.macro hotloop
-|  NYI
-|.endmacro
-|
-|.macro hotcall
-|  NYI
-|.endmacro
-|
-|// Set current VM state. Uses TMP0.
-|.macro li_vmstate, st; li TMP0, ~LJ_VMST_..st; .endmacro
-|.macro st_vmstate; stw TMP0, DISPATCH_GL(vmstate)(DISPATCH); .endmacro
-|
-|// Move table write barrier back. Overwrites mark and tmp.
-|.macro barrierback, tab, mark, tmp
-|  lwz tmp, DISPATCH_GL(gc.grayagain)(DISPATCH)
-|  // Assumes LJ_GC_BLACK is 0x04.
-|   rlwinm mark, mark, 0, 30, 28		// black2gray(tab)
-|  stw tab, DISPATCH_GL(gc.grayagain)(DISPATCH)
-|   stb mark, tab->marked
-|  stw tmp, tab->gclist
-|.endmacro
-|
-|//-----------------------------------------------------------------------
-
-/* Generate subroutines used by opcodes and other parts of the VM. */
-/* The .code_sub section should be last to help static branch prediction. */
-static void build_subroutines(BuildCtx *ctx)
-{
-  |.code_sub
-  |
-  |//-----------------------------------------------------------------------
-  |//-- Return handling ----------------------------------------------------
-  |//-----------------------------------------------------------------------
-  |
-  |->vm_returnp:
-  |  // See vm_return. Also: TMP2 = previous base.
-  |  andi. TMP0, PC, FRAME_P
-  |   evsplati TMP1, LJ_TTRUE
-  |  beq ->cont_dispatch
-  |
-  |  // Return from pcall or xpcall fast func.
-  |  lwz PC, FRAME_PC(TMP2)		// Fetch PC of previous frame.
-  |  mr BASE, TMP2			// Restore caller base.
-  |  // Prepending may overwrite the pcall frame, so do it at the end.
-  |   stwu TMP1, FRAME_PC(RA)		// Prepend true to results.
-  |
-  |->vm_returnc:
-  |  addi RD, RD, 8			// RD = (nresults+1)*8.
-  |   andi. TMP0, PC, FRAME_TYPE
-  |  cmpwi cr1, RD, 0
-  |  li CRET1, LUA_YIELD
-  |  beq cr1, ->vm_unwind_c_eh
-  |  mr MULTRES, RD
-  |   beq ->BC_RET_Z			// Handle regular return to Lua.
-  |
-  |->vm_return:
-  |  // BASE = base, RA = resultptr, RD/MULTRES = (nresults+1)*8, PC = return
-  |  // TMP0 = PC & FRAME_TYPE
-  |  cmpwi TMP0, FRAME_C
-  |   rlwinm TMP2, PC, 0, 0, 28
-  |    li_vmstate C
-  |   sub TMP2, BASE, TMP2		// TMP2 = previous base.
-  |  bne ->vm_returnp
-  |
-  |  addic. TMP1, RD, -8
-  |   stw TMP2, L->base
-  |   lwz TMP2, SAVE_NRES
-  |    subi BASE, BASE, 8
-  |    st_vmstate
-  |   slwi TMP2, TMP2, 3
-  |  beq >2
-  |1:
-  |  addic. TMP1, TMP1, -8
-  |   evldd TMP0, 0(RA)
-  |    addi RA, RA, 8
-  |   evstdd TMP0, 0(BASE)
-  |    addi BASE, BASE, 8
-  |  bne <1
-  |
-  |2:
-  |  cmpw TMP2, RD			// More/less results wanted?
-  |  bne >6
-  |3:
-  |  stw BASE, L->top			// Store new top.
-  |
-  |->vm_leave_cp:
-  |  lwz TMP0, SAVE_CFRAME		// Restore previous C frame.
-  |   li CRET1, 0			// Ok return status for vm_pcall.
-  |  stw TMP0, L->cframe
-  |
-  |->vm_leave_unw:
-  |  restoreregs
-  |  blr
-  |
-  |6:
-  |  ble >7				// Less results wanted?
-  |  // More results wanted. Check stack size and fill up results with nil.
-  |  lwz TMP1, L->maxstack
-  |  cmplw BASE, TMP1
-  |  bge >8
-  |  evstdd TISNIL, 0(BASE)
-  |  addi RD, RD, 8
-  |  addi BASE, BASE, 8
-  |  b <2
-  |
-  |7:  // Less results wanted.
-  |   sub TMP0, RD, TMP2
-  |  cmpwi TMP2, 0			// LUA_MULTRET+1 case?
-  |   sub TMP0, BASE, TMP0		// Subtract the difference.
-  |  iseleq BASE, BASE, TMP0		// Either keep top or shrink it.
-  |  b <3
-  |
-  |8:  // Corner case: need to grow stack for filling up results.
-  |  // This can happen if:
-  |  // - A C function grows the stack (a lot).
-  |  // - The GC shrinks the stack in between.
-  |  // - A return back from a lua_call() with (high) nresults adjustment.
-  |  stw BASE, L->top			// Save current top held in BASE (yes).
-  |   mr SAVE0, RD
-  |  mr CARG2, TMP2
-  |  mr CARG1, L
-  |  bl extern lj_state_growstack	// (lua_State *L, int n)
-  |    lwz TMP2, SAVE_NRES
-  |   mr RD, SAVE0
-  |    slwi TMP2, TMP2, 3
-  |  lwz BASE, L->top			// Need the (realloced) L->top in BASE.
-  |  b <2
-  |
-  |->vm_unwind_c:			// Unwind C stack, return from vm_pcall.
-  |  // (void *cframe, int errcode)
-  |  mr sp, CARG1
-  |  mr CRET1, CARG2
-  |->vm_unwind_c_eh:			// Landing pad for external unwinder.
-  |  lwz L, SAVE_L
-  |   li TMP0, ~LJ_VMST_C
-  |  lwz GL:TMP1, L->glref
-  |   stw TMP0, GL:TMP1->vmstate
-  |  b ->vm_leave_unw
-  |
-  |->vm_unwind_ff:			// Unwind C stack, return from ff pcall.
-  |  // (void *cframe)
-  |  rlwinm sp, CARG1, 0, 0, 29
-  |->vm_unwind_ff_eh:			// Landing pad for external unwinder.
-  |  lwz L, SAVE_L
-  |     evsplati TISNUM, LJ_TISNUM+1	// Setup type comparison constants.
-  |     evsplati TISFUNC, LJ_TFUNC
-  |     lus TOBIT, 0x4338
-  |     evsplati TISTAB, LJ_TTAB
-  |     li TMP0, 0
-  |  lwz BASE, L->base
-  |     evmergelo TOBIT, TOBIT, TMP0
-  |   lwz DISPATCH, L->glref		// Setup pointer to dispatch table.
-  |     evsplati TISSTR, LJ_TSTR
-  |  li TMP1, LJ_TFALSE
-  |     evsplati TISNIL, LJ_TNIL
-  |    li_vmstate INTERP
-  |  lwz PC, FRAME_PC(BASE)		// Fetch PC of previous frame.
-  |  la RA, -8(BASE)			// Results start at BASE-8.
-  |   addi DISPATCH, DISPATCH, GG_G2DISP
-  |  stw TMP1, 0(RA)			// Prepend false to error message.
-  |  li RD, 16				// 2 results: false + error message.
-  |    st_vmstate
-  |  b ->vm_returnc
-  |
-  |//-----------------------------------------------------------------------
-  |//-- Grow stack for calls -----------------------------------------------
-  |//-----------------------------------------------------------------------
-  |
-  |->vm_growstack_c:			// Grow stack for C function.
-  |  li CARG2, LUA_MINSTACK
-  |  b >2
-  |
-  |->vm_growstack_l:			// Grow stack for Lua function.
-  |  // BASE = new base, RA = BASE+framesize*8, RC = nargs*8, PC = first PC
-  |  add RC, BASE, RC
-  |   sub RA, RA, BASE
-  |  stw BASE, L->base
-  |   addi PC, PC, 4			// Must point after first instruction.
-  |  stw RC, L->top
-  |   srwi CARG2, RA, 3
-  |2:
-  |  // L->base = new base, L->top = top
-  |   stw PC, SAVE_PC
-  |  mr CARG1, L
-  |  bl extern lj_state_growstack	// (lua_State *L, int n)
-  |  lwz BASE, L->base
-  |  lwz RC, L->top
-  |  lwz LFUNC:RB, FRAME_FUNC(BASE)
-  |  sub RC, RC, BASE
-  |  // BASE = new base, RB = LFUNC/CFUNC, RC = nargs*8, FRAME_PC(BASE) = PC
-  |  ins_callt				// Just retry the call.
-  |
-  |//-----------------------------------------------------------------------
-  |//-- Entry points into the assembler VM ---------------------------------
-  |//-----------------------------------------------------------------------
-  |
-  |->vm_resume:				// Setup C frame and resume thread.
-  |  // (lua_State *L, TValue *base, int nres1 = 0, ptrdiff_t ef = 0)
-  |  saveregs
-  |  mr L, CARG1
-  |    lwz DISPATCH, L->glref		// Setup pointer to dispatch table.
-  |  mr BASE, CARG2
-  |    lbz TMP1, L->status
-  |   stw L, SAVE_L
-  |  li PC, FRAME_CP
-  |  addi TMP0, sp, CFRAME_RESUME
-  |    addi DISPATCH, DISPATCH, GG_G2DISP
-  |   stw CARG3, SAVE_NRES
-  |    cmplwi TMP1, 0
-  |   stw CARG3, SAVE_ERRF
-  |  stw TMP0, L->cframe
-  |   stw CARG3, SAVE_CFRAME
-  |   stw CARG1, SAVE_PC		// Any value outside of bytecode is ok.
-  |    beq >3
-  |
-  |  // Resume after yield (like a return).
-  |  mr RA, BASE
-  |   lwz BASE, L->base
-  |    evsplati TISNUM, LJ_TISNUM+1	// Setup type comparison constants.
-  |   lwz TMP1, L->top
-  |    evsplati TISFUNC, LJ_TFUNC
-  |    lus TOBIT, 0x4338
-  |    evsplati TISTAB, LJ_TTAB
-  |  lwz PC, FRAME_PC(BASE)
-  |    li TMP2, 0
-  |    evsplati TISSTR, LJ_TSTR
-  |   sub RD, TMP1, BASE
-  |    evmergelo TOBIT, TOBIT, TMP2
-  |    stb CARG3, L->status
-  |  andi. TMP0, PC, FRAME_TYPE
-  |    li_vmstate INTERP
-  |   addi RD, RD, 8
-  |    evsplati TISNIL, LJ_TNIL
-  |   mr MULTRES, RD
-  |    st_vmstate
-  |  beq ->BC_RET_Z
-  |  b ->vm_return
-  |
-  |->vm_pcall:				// Setup protected C frame and enter VM.
-  |  // (lua_State *L, TValue *base, int nres1, ptrdiff_t ef)
-  |  saveregs
-  |  li PC, FRAME_CP
-  |  stw CARG4, SAVE_ERRF
-  |  b >1
-  |
-  |->vm_call:				// Setup C frame and enter VM.
-  |  // (lua_State *L, TValue *base, int nres1)
-  |  saveregs
-  |  li PC, FRAME_C
-  |
-  |1:  // Entry point for vm_pcall above (PC = ftype).
-  |  lwz TMP1, L:CARG1->cframe
-  |   stw CARG3, SAVE_NRES
-  |    mr L, CARG1
-  |   stw CARG1, SAVE_L
-  |    mr BASE, CARG2
-  |  stw sp, L->cframe			// Add our C frame to cframe chain.
-  |    lwz DISPATCH, L->glref		// Setup pointer to dispatch table.
-  |   stw CARG1, SAVE_PC		// Any value outside of bytecode is ok.
-  |  stw TMP1, SAVE_CFRAME
-  |    addi DISPATCH, DISPATCH, GG_G2DISP
-  |
-  |3:  // Entry point for vm_cpcall/vm_resume (BASE = base, PC = ftype).
-  |  lwz TMP2, L->base			// TMP2 = old base (used in vmeta_call).
-  |    evsplati TISNUM, LJ_TISNUM+1	// Setup type comparison constants.
-  |   lwz TMP1, L->top
-  |    evsplati TISFUNC, LJ_TFUNC
-  |  add PC, PC, BASE
-  |    evsplati TISTAB, LJ_TTAB
-  |    lus TOBIT, 0x4338
-  |    li TMP0, 0
-  |  sub PC, PC, TMP2			// PC = frame delta + frame type
-  |    evsplati TISSTR, LJ_TSTR
-  |   sub NARGS8:RC, TMP1, BASE
-  |    evmergelo TOBIT, TOBIT, TMP0
-  |    li_vmstate INTERP
-  |    evsplati TISNIL, LJ_TNIL
-  |    st_vmstate
-  |
-  |->vm_call_dispatch:
-  |  // TMP2 = old base, BASE = new base, RC = nargs*8, PC = caller PC
-  |  li TMP0, -8
-  |  evlddx LFUNC:RB, BASE, TMP0
-  |  checkfunc LFUNC:RB
-  |  checkfail ->vmeta_call
-  |
-  |->vm_call_dispatch_f:
-  |  ins_call
-  |  // BASE = new base, RB = func, RC = nargs*8, PC = caller PC
-  |
-  |->vm_cpcall:				// Setup protected C frame, call C.
-  |  // (lua_State *L, lua_CFunction func, void *ud, lua_CPFunction cp)
-  |  saveregs
-  |  mr L, CARG1
-  |   lwz TMP0, L:CARG1->stack
-  |  stw CARG1, SAVE_L
-  |   lwz TMP1, L->top
-  |  stw CARG1, SAVE_PC			// Any value outside of bytecode is ok.
-  |   sub TMP0, TMP0, TMP1		// Compute -savestack(L, L->top).
-  |    lwz TMP1, L->cframe
-  |    stw sp, L->cframe		// Add our C frame to cframe chain.
-  |  li TMP2, 0
-  |   stw TMP0, SAVE_NRES		// Neg. delta means cframe w/o frame.
-  |  stw TMP2, SAVE_ERRF		// No error function.
-  |    stw TMP1, SAVE_CFRAME
-  |  mtctr CARG4
-  |  bctrl			// (lua_State *L, lua_CFunction func, void *ud)
-  |  mr. BASE, CRET1
-  |   lwz DISPATCH, L->glref		// Setup pointer to dispatch table.
-  |    li PC, FRAME_CP
-  |   addi DISPATCH, DISPATCH, GG_G2DISP
-  |  bne <3				// Else continue with the call.
-  |  b ->vm_leave_cp			// No base? Just remove C frame.
-  |
-  |//-----------------------------------------------------------------------
-  |//-- Metamethod handling ------------------------------------------------
-  |//-----------------------------------------------------------------------
-  |
-  |// The lj_meta_* functions (except for lj_meta_cat) don't reallocate the
-  |// stack, so BASE doesn't need to be reloaded across these calls.
-  |
-  |//-- Continuation dispatch ----------------------------------------------
-  |
-  |->cont_dispatch:
-  |  // BASE = meta base, RA = resultptr, RD = (nresults+1)*8
-  |  lwz TMP0, -12(BASE)		// Continuation.
-  |   mr RB, BASE
-  |   mr BASE, TMP2			// Restore caller BASE.
-  |    lwz LFUNC:TMP1, FRAME_FUNC(TMP2)
-  |  cmplwi TMP0, 0
-  |     lwz PC, -16(RB)			// Restore PC from [cont|PC].
-  |  beq >1
-  |   subi TMP2, RD, 8
-  |    lwz TMP1, LFUNC:TMP1->pc
-  |   evstddx TISNIL, RA, TMP2		// Ensure one valid arg.
-  |    lwz KBASE, PC2PROTO(k)(TMP1)
-  |  // BASE = base, RA = resultptr, RB = meta base
-  |  mtctr TMP0
-  |  bctr				// Jump to continuation.
-  |
-  |1:  // Tail call from C function.
-  |  subi TMP1, RB, 16
-  |  sub RC, TMP1, BASE
-  |  b ->vm_call_tail
-  |
-  |->cont_cat:				// RA = resultptr, RB = meta base
-  |  lwz INS, -4(PC)
-  |   subi CARG2, RB, 16
-  |  decode_RB8 SAVE0, INS
-  |   evldd TMP0, 0(RA)
-  |  add TMP1, BASE, SAVE0
-  |   stw BASE, L->base
-  |  cmplw TMP1, CARG2
-  |   sub CARG3, CARG2, TMP1
-  |  decode_RA8 RA, INS
-  |   evstdd TMP0, 0(CARG2)
-  |  bne ->BC_CAT_Z
-  |   evstddx TMP0, BASE, RA
-  |  b ->cont_nop
-  |
-  |//-- Table indexing metamethods -----------------------------------------
-  |
-  |->vmeta_tgets1:
-  |  evmergelo STR:RC, TISSTR, STR:RC
-  |  la CARG3, DISPATCH_GL(tmptv)(DISPATCH)
-  |   decode_RB8 RB, INS
-  |  evstdd STR:RC, 0(CARG3)
-  |   add CARG2, BASE, RB
-  |  b >1
-  |
-  |->vmeta_tgets:
-  |  evmergelo TAB:RB, TISTAB, TAB:RB
-  |  la CARG2, DISPATCH_GL(tmptv)(DISPATCH)
-  |   evmergelo STR:RC, TISSTR, STR:RC
-  |  evstdd TAB:RB, 0(CARG2)
-  |   la CARG3, DISPATCH_GL(tmptv2)(DISPATCH)
-  |   evstdd STR:RC, 0(CARG3)
-  |  b >1
-  |
-  |->vmeta_tgetb:			// TMP0 = index
-  |  efdcfsi TMP0, TMP0
-  |   decode_RB8 RB, INS
-  |  la CARG3, DISPATCH_GL(tmptv)(DISPATCH)
-  |   add CARG2, BASE, RB
-  |  evstdd TMP0, 0(CARG3)
-  |  b >1
-  |
-  |->vmeta_tgetv:
-  |  decode_RB8 RB, INS
-  |   decode_RC8 RC, INS
-  |  add CARG2, BASE, RB
-  |   add CARG3, BASE, RC
-  |1:
-  |  stw BASE, L->base
-  |  mr CARG1, L
-  |  stw PC, SAVE_PC
-  |  bl extern lj_meta_tget		// (lua_State *L, TValue *o, TValue *k)
-  |  // Returns TValue * (finished) or NULL (metamethod).
-  |  cmplwi CRET1, 0
-  |  beq >3
-  |  evldd TMP0, 0(CRET1)
-  |  evstddx TMP0, BASE, RA
-  |  ins_next
-  |
-  |3:  // Call __index metamethod.
-  |  // BASE = base, L->top = new base, stack = cont/func/t/k
-  |  subfic TMP1, BASE, FRAME_CONT
-  |  lwz BASE, L->top
-  |  stw PC, -16(BASE)			// [cont|PC]
-  |   add PC, TMP1, BASE
-  |  lwz LFUNC:RB, FRAME_FUNC(BASE)	// Guaranteed to be a function here.
-  |   li NARGS8:RC, 16			// 2 args for func(t, k).
-  |  b ->vm_call_dispatch_f
-  |
-  |//-----------------------------------------------------------------------
-  |
-  |->vmeta_tsets1:
-  |  evmergelo STR:RC, TISSTR, STR:RC
-  |  la CARG3, DISPATCH_GL(tmptv)(DISPATCH)
-  |   decode_RB8 RB, INS
-  |  evstdd STR:RC, 0(CARG3)
-  |   add CARG2, BASE, RB
-  |  b >1
-  |
-  |->vmeta_tsets:
-  |  evmergelo TAB:RB, TISTAB, TAB:RB
-  |  la CARG2, DISPATCH_GL(tmptv)(DISPATCH)
-  |   evmergelo STR:RC, TISSTR, STR:RC
-  |  evstdd TAB:RB, 0(CARG2)
-  |   la CARG3, DISPATCH_GL(tmptv2)(DISPATCH)
-  |   evstdd STR:RC, 0(CARG3)
-  |  b >1
-  |
-  |->vmeta_tsetb:			// TMP0 = index
-  |  efdcfsi TMP0, TMP0
-  |   decode_RB8 RB, INS
-  |  la CARG3, DISPATCH_GL(tmptv)(DISPATCH)
-  |   add CARG2, BASE, RB
-  |  evstdd TMP0, 0(CARG3)
-  |  b >1
-  |
-  |->vmeta_tsetv:
-  |  decode_RB8 RB, INS
-  |   decode_RC8 RC, INS
-  |  add CARG2, BASE, RB
-  |   add CARG3, BASE, RC
-  |1:
-  |  stw BASE, L->base
-  |  mr CARG1, L
-  |  stw PC, SAVE_PC
-  |  bl extern lj_meta_tset		// (lua_State *L, TValue *o, TValue *k)
-  |  // Returns TValue * (finished) or NULL (metamethod).
-  |  cmplwi CRET1, 0
-  |   evlddx TMP0, BASE, RA
-  |  beq >3
-  |  // NOBARRIER: lj_meta_tset ensures the table is not black.
-  |   evstdd TMP0, 0(CRET1)
-  |  ins_next
-  |
-  |3:  // Call __newindex metamethod.
-  |  // BASE = base, L->top = new base, stack = cont/func/t/k/(v)
-  |  subfic TMP1, BASE, FRAME_CONT
-  |  lwz BASE, L->top
-  |  stw PC, -16(BASE)			// [cont|PC]
-  |   add PC, TMP1, BASE
-  |  lwz LFUNC:RB, FRAME_FUNC(BASE)	// Guaranteed to be a function here.
-  |   li NARGS8:RC, 24			// 3 args for func(t, k, v)
-  |  evstdd TMP0, 16(BASE)		// Copy value to third argument.
-  |  b ->vm_call_dispatch_f
-  |
-  |//-- Comparison metamethods ---------------------------------------------
-  |
-  |->vmeta_comp:
-  |  mr CARG1, L
-  |   subi PC, PC, 4
-  |  add CARG2, BASE, RA
-  |   stw PC, SAVE_PC
-  |  add CARG3, BASE, RD
-  |   stw BASE, L->base
-  |  decode_OP1 CARG4, INS
-  |  bl extern lj_meta_comp  // (lua_State *L, TValue *o1, *o2, int op)
-  |  // Returns 0/1 or TValue * (metamethod).
-  |3:
-  |  cmplwi CRET1, 1
-  |  bgt ->vmeta_binop
-  |4:
-  |  lwz INS, 0(PC)
-  |   addi PC, PC, 4
-  |  decode_RD4 TMP2, INS
-  |  addis TMP3, PC, -(BCBIAS_J*4 >> 16)
-  |  add TMP2, TMP2, TMP3
-  |  isellt PC, PC, TMP2
-  |->cont_nop:
-  |  ins_next
-  |
-  |->cont_ra:				// RA = resultptr
-  |  lwz INS, -4(PC)
-  |   evldd TMP0, 0(RA)
-  |  decode_RA8 TMP1, INS
-  |   evstddx TMP0, BASE, TMP1
-  |  b ->cont_nop
-  |
-  |->cont_condt:			// RA = resultptr
-  |  lwz TMP0, 0(RA)
-  |   li TMP1, LJ_TTRUE
-  |  cmplw TMP1, TMP0			// Branch if result is true.
-  |  b <4
-  |
-  |->cont_condf:			// RA = resultptr
-  |  lwz TMP0, 0(RA)
-  |   li TMP1, LJ_TFALSE
-  |  cmplw TMP0, TMP1			// Branch if result is false.
-  |  b <4
-  |
-  |->vmeta_equal:
-  |  // CARG2, CARG3, CARG4 are already set by BC_ISEQV/BC_ISNEV.
-  |  subi PC, PC, 4
-  |   stw BASE, L->base
-  |  mr CARG1, L
-  |   stw PC, SAVE_PC
-  |  bl extern lj_meta_equal  // (lua_State *L, GCobj *o1, *o2, int ne)
-  |  // Returns 0/1 or TValue * (metamethod).
-  |  b <3
-  |
-  |//-- Arithmetic metamethods ---------------------------------------------
-  |
-  |->vmeta_arith_vn:
-  |  add CARG3, BASE, RB
-  |  add CARG4, KBASE, RC
-  |  b >1
-  |
-  |->vmeta_arith_nv:
-  |  add CARG3, KBASE, RC
-  |  add CARG4, BASE, RB
-  |  b >1
-  |
-  |->vmeta_unm:
-  |  add CARG3, BASE, RD
-  |  mr CARG4, CARG3
-  |  b >1
-  |
-  |->vmeta_arith_vv:
-  |  add CARG3, BASE, RB
-  |  add CARG4, BASE, RC
-  |1:
-  |  add CARG2, BASE, RA
-  |   stw BASE, L->base
-  |  mr CARG1, L
-  |   stw PC, SAVE_PC
-  |  decode_OP1 CARG5, INS		// Caveat: CARG5 overlaps INS.
-  |  bl extern lj_meta_arith  // (lua_State *L, TValue *ra,*rb,*rc, BCReg op)
-  |  // Returns NULL (finished) or TValue * (metamethod).
-  |  cmplwi CRET1, 0
-  |  beq ->cont_nop
-  |
-  |  // Call metamethod for binary op.
-  |->vmeta_binop:
-  |  // BASE = old base, CRET1 = new base, stack = cont/func/o1/o2
-  |  sub TMP1, CRET1, BASE
-  |   stw PC, -16(CRET1)		// [cont|PC]
-  |   mr TMP2, BASE
-  |  addi PC, TMP1, FRAME_CONT
-  |   mr BASE, CRET1
-  |  li NARGS8:RC, 16			// 2 args for func(o1, o2).
-  |  b ->vm_call_dispatch
-  |
-  |->vmeta_len:
-#if LJ_52
-  |  mr SAVE0, CARG1
-#endif
-  |  add CARG2, BASE, RD
-  |   stw BASE, L->base
-  |  mr CARG1, L
-  |   stw PC, SAVE_PC
-  |  bl extern lj_meta_len		// (lua_State *L, TValue *o)
-  |  // Returns NULL (retry) or TValue * (metamethod base).
-#if LJ_52
-  |  cmplwi CRET1, 0
-  |  bne ->vmeta_binop			// Binop call for compatibility.
-  |  mr CARG1, SAVE0
-  |  b ->BC_LEN_Z
-#else
-  |  b ->vmeta_binop			// Binop call for compatibility.
-#endif
-  |
-  |//-- Call metamethod ----------------------------------------------------
-  |
-  |->vmeta_call:			// Resolve and call __call metamethod.
-  |  // TMP2 = old base, BASE = new base, RC = nargs*8
-  |  mr CARG1, L
-  |   stw TMP2, L->base			// This is the callers base!
-  |  subi CARG2, BASE, 8
-  |   stw PC, SAVE_PC
-  |  add CARG3, BASE, RC
-  |   mr SAVE0, NARGS8:RC
-  |  bl extern lj_meta_call	// (lua_State *L, TValue *func, TValue *top)
-  |  lwz LFUNC:RB, FRAME_FUNC(BASE)	// Guaranteed to be a function here.
-  |   addi NARGS8:RC, SAVE0, 8		// Got one more argument now.
-  |  ins_call
-  |
-  |->vmeta_callt:			// Resolve __call for BC_CALLT.
-  |  // BASE = old base, RA = new base, RC = nargs*8
-  |  mr CARG1, L
-  |   stw BASE, L->base
-  |  subi CARG2, RA, 8
-  |   stw PC, SAVE_PC
-  |  add CARG3, RA, RC
-  |   mr SAVE0, NARGS8:RC
-  |  bl extern lj_meta_call	// (lua_State *L, TValue *func, TValue *top)
-  |  lwz TMP1, FRAME_PC(BASE)
-  |   addi NARGS8:RC, SAVE0, 8		// Got one more argument now.
-  |   lwz LFUNC:RB, FRAME_FUNC(RA)	// Guaranteed to be a function here.
-  |  b ->BC_CALLT_Z
-  |
-  |//-- Argument coercion for 'for' statement ------------------------------
-  |
-  |->vmeta_for:
-  |  mr CARG1, L
-  |   stw BASE, L->base
-  |  mr CARG2, RA
-  |   stw PC, SAVE_PC
-  |  mr SAVE0, INS
-  |  bl extern lj_meta_for	// (lua_State *L, TValue *base)
-  |.if JIT
-  |   decode_OP1 TMP0, SAVE0
-  |.endif
-  |  decode_RA8 RA, SAVE0
-  |.if JIT
-  |   cmpwi TMP0, BC_JFORI
-  |.endif
-  |  decode_RD8 RD, SAVE0
-  |.if JIT
-  |   beq =>BC_JFORI
-  |.endif
-  |  b =>BC_FORI
-  |
-  |//-----------------------------------------------------------------------
-  |//-- Fast functions -----------------------------------------------------
-  |//-----------------------------------------------------------------------
-  |
-  |.macro .ffunc, name
-  |->ff_ .. name:
-  |.endmacro
-  |
-  |.macro .ffunc_1, name
-  |->ff_ .. name:
-  |  cmplwi NARGS8:RC, 8
-  |   evldd CARG1, 0(BASE)
-  |  blt ->fff_fallback
-  |.endmacro
-  |
-  |.macro .ffunc_2, name
-  |->ff_ .. name:
-  |  cmplwi NARGS8:RC, 16
-  |   evldd CARG1, 0(BASE)
-  |   evldd CARG2, 8(BASE)
-  |  blt ->fff_fallback
-  |.endmacro
-  |
-  |.macro .ffunc_n, name
-  |  .ffunc_1 name
-  |  checknum CARG1
-  |  checkfail ->fff_fallback
-  |.endmacro
-  |
-  |.macro .ffunc_nn, name
-  |  .ffunc_2 name
-  |  evmergehi TMP0, CARG1, CARG2
-  |  checknum TMP0
-  |  checkanyfail ->fff_fallback
-  |.endmacro
-  |
-  |// Inlined GC threshold check. Caveat: uses TMP0 and TMP1.
-  |.macro ffgccheck
-  |  lwz TMP0, DISPATCH_GL(gc.total)(DISPATCH)
-  |  lwz TMP1, DISPATCH_GL(gc.threshold)(DISPATCH)
-  |  cmplw TMP0, TMP1
-  |  bgel ->fff_gcstep
-  |.endmacro
-  |
-  |//-- Base library: checks -----------------------------------------------
-  |
-  |.ffunc assert
-  |  cmplwi NARGS8:RC, 8
-  |   evldd TMP0, 0(BASE)
-  |  blt ->fff_fallback
-  |  evaddw TMP1, TISNIL, TISNIL	// Synthesize LJ_TFALSE.
-  |  la RA, -8(BASE)
-  |   evcmpltu cr1, TMP0, TMP1
-  |    lwz PC, FRAME_PC(BASE)
-  |  bge cr1, ->fff_fallback
-  |   evstdd TMP0, 0(RA)
-  |  addi RD, NARGS8:RC, 8		// Compute (nresults+1)*8.
-  |   beq ->fff_res			// Done if exactly 1 argument.
-  |  li TMP1, 8
-  |  subi RC, RC, 8
-  |1:
-  |  cmplw TMP1, RC
-  |   evlddx TMP0, BASE, TMP1
-  |   evstddx TMP0, RA, TMP1
-  |    addi TMP1, TMP1, 8
-  |  bne <1
-  |  b ->fff_res
-  |
-  |.ffunc type
-  |  cmplwi NARGS8:RC, 8
-  |   lwz CARG1, 0(BASE)
-  |  blt ->fff_fallback
-  |    li TMP2, ~LJ_TNUMX
-  |  cmplw CARG1, TISNUM
-  |  not TMP1, CARG1
-  |  isellt TMP1, TMP2, TMP1
-  |  slwi TMP1, TMP1, 3
-  |   la TMP2, CFUNC:RB->upvalue
-  |  evlddx STR:CRET1, TMP2, TMP1
-  |  b ->fff_restv
-  |
-  |//-- Base library: getters and setters ---------------------------------
-  |
-  |.ffunc_1 getmetatable
-  |  checktab CARG1
-  |   evmergehi TMP1, CARG1, CARG1
-  |  checkfail >6
-  |1:  // Field metatable must be at same offset for GCtab and GCudata!
-  |  lwz TAB:RB, TAB:CARG1->metatable
-  |2:
-  |  evmr CRET1, TISNIL
-  |   cmplwi TAB:RB, 0
-  |  lwz STR:RC, DISPATCH_GL(gcroot[GCROOT_MMNAME+MM_metatable])(DISPATCH)
-  |   beq ->fff_restv
-  |  lwz TMP0, TAB:RB->hmask
-  |   evmergelo CRET1, TISTAB, TAB:RB	// Use metatable as default result.
-  |  lwz TMP1, STR:RC->hash
-  |  lwz NODE:TMP2, TAB:RB->node
-  |   evmergelo STR:RC, TISSTR, STR:RC
-  |  and TMP1, TMP1, TMP0		// idx = str->hash & tab->hmask
-  |  slwi TMP0, TMP1, 5
-  |  slwi TMP1, TMP1, 3
-  |  sub TMP1, TMP0, TMP1
-  |  add NODE:TMP2, NODE:TMP2, TMP1	// node = tab->node + (idx*32-idx*8)
-  |3:  // Rearranged logic, because we expect _not_ to find the key.
-  |  evldd TMP0, NODE:TMP2->key
-  |   evldd TMP1, NODE:TMP2->val
-  |  evcmpeq TMP0, STR:RC
-  |   lwz NODE:TMP2, NODE:TMP2->next
-  |  checkallok >5
-  |   cmplwi NODE:TMP2, 0
-  |   beq ->fff_restv			// Not found, keep default result.
-  |   b <3
-  |5:
-  |  checknil TMP1
-  |  checkok ->fff_restv		// Ditto for nil value.
-  |  evmr CRET1, TMP1			// Return value of mt.__metatable.
-  |  b ->fff_restv
-  |
-  |6:
-  |  cmpwi TMP1, LJ_TUDATA
-  |   not TMP1, TMP1
-  |  beq <1
-  |  checknum CARG1
-  |   slwi TMP1, TMP1, 2
-  |   li TMP2, 4*~LJ_TNUMX
-  |  isellt TMP1, TMP2, TMP1
-  |   la TMP2, DISPATCH_GL(gcroot[GCROOT_BASEMT])(DISPATCH)
-  |  lwzx TAB:RB, TMP2, TMP1
-  |  b <2
-  |
-  |.ffunc_2 setmetatable
-  |  // Fast path: no mt for table yet and not clearing the mt.
-  |  evmergehi TMP0, TAB:CARG1, TAB:CARG2
-  |  checktab TMP0
-  |  checkanyfail ->fff_fallback
-  |  lwz TAB:TMP1, TAB:CARG1->metatable
-  |  cmplwi TAB:TMP1, 0
-  |   lbz TMP3, TAB:CARG1->marked
-  |  bne ->fff_fallback
-  |   andi. TMP0, TMP3, LJ_GC_BLACK	// isblack(table)
-  |    stw TAB:CARG2, TAB:CARG1->metatable
-  |   beq ->fff_restv
-  |  barrierback TAB:CARG1, TMP3, TMP0
-  |  b ->fff_restv
-  |
-  |.ffunc rawget
-  |  cmplwi NARGS8:RC, 16
-  |   evldd CARG2, 0(BASE)
-  |  blt ->fff_fallback
-  |  checktab CARG2
-  |   la CARG3, 8(BASE)
-  |  checkfail ->fff_fallback
-  |   mr CARG1, L
-  |  bl extern lj_tab_get  // (lua_State *L, GCtab *t, cTValue *key)
-  |  // Returns cTValue *.
-  |  evldd CRET1, 0(CRET1)
-  |  b ->fff_restv
-  |
-  |//-- Base library: conversions ------------------------------------------
-  |
-  |.ffunc tonumber
-  |  // Only handles the number case inline (without a base argument).
-  |  cmplwi NARGS8:RC, 8
-  |   evldd CARG1, 0(BASE)
-  |  bne ->fff_fallback			// Exactly one argument.
-  |  checknum CARG1
-  |  checkok ->fff_restv
-  |  b ->fff_fallback
-  |
-  |.ffunc_1 tostring
-  |  // Only handles the string or number case inline.
-  |  checkstr CARG1
-  |  // A __tostring method in the string base metatable is ignored.
-  |  checkok ->fff_restv		// String key?
-  |  // Handle numbers inline, unless a number base metatable is present.
-  |  lwz TMP0, DISPATCH_GL(gcroot[GCROOT_BASEMT_NUM])(DISPATCH)
-  |  checknum CARG1
-  |  cmplwi cr1, TMP0, 0
-  |   stw BASE, L->base			// Add frame since C call can throw.
-  |  crand 4*cr0+eq, 4*cr0+lt, 4*cr1+eq
-  |   stw PC, SAVE_PC			// Redundant (but a defined value).
-  |  bne ->fff_fallback
-  |  ffgccheck
-  |  mr CARG1, L
-  |  mr CARG2, BASE
-  |  bl extern lj_str_fromnum		// (lua_State *L, lua_Number *np)
-  |  // Returns GCstr *.
-  |  evmergelo STR:CRET1, TISSTR, STR:CRET1
-  |  b ->fff_restv
-  |
-  |//-- Base library: iterators -------------------------------------------
-  |
-  |.ffunc next
-  |  cmplwi NARGS8:RC, 8
-  |   evldd CARG2, 0(BASE)
-  |  blt ->fff_fallback
-  |   evstddx TISNIL, BASE, NARGS8:RC	// Set missing 2nd arg to nil.
-  |  checktab TAB:CARG2
-  |   lwz PC, FRAME_PC(BASE)
-  |  checkfail ->fff_fallback
-  |   stw BASE, L->base			// Add frame since C call can throw.
-  |  mr CARG1, L
-  |   stw BASE, L->top			// Dummy frame length is ok.
-  |  la CARG3, 8(BASE)
-  |   stw PC, SAVE_PC
-  |  bl extern lj_tab_next	// (lua_State *L, GCtab *t, TValue *key)
-  |  // Returns 0 at end of traversal.
-  |  cmplwi CRET1, 0
-  |   evmr CRET1, TISNIL
-  |  beq ->fff_restv			// End of traversal: return nil.
-  |  evldd TMP0, 8(BASE)		// Copy key and value to results.
-  |   la RA, -8(BASE)
-  |  evldd TMP1, 16(BASE)
-  |  evstdd TMP0, 0(RA)
-  |   li RD, (2+1)*8
-  |  evstdd TMP1, 8(RA)
-  |  b ->fff_res
-  |
-  |.ffunc_1 pairs
-  |  checktab TAB:CARG1
-  |   lwz PC, FRAME_PC(BASE)
-  |  checkfail ->fff_fallback
-#if LJ_52
-  |   lwz TAB:TMP2, TAB:CARG1->metatable
-  |  evldd CFUNC:TMP0, CFUNC:RB->upvalue[0]
-  |   cmplwi TAB:TMP2, 0
-  |  la RA, -8(BASE)
-  |   bne ->fff_fallback
-#else
-  |  evldd CFUNC:TMP0, CFUNC:RB->upvalue[0]
-  |  la RA, -8(BASE)
-#endif
-  |   evstdd TISNIL, 8(BASE)
-  |  li RD, (3+1)*8
-  |  evstdd CFUNC:TMP0, 0(RA)
-  |  b ->fff_res
-  |
-  |.ffunc_2 ipairs_aux
-  |  checktab TAB:CARG1
-  |   lwz PC, FRAME_PC(BASE)
-  |  checkfail ->fff_fallback
-  |  checknum CARG2
-  |    lus TMP3, 0x3ff0
-  |  checkfail ->fff_fallback
-  |  efdctsi TMP2, CARG2
-  |   lwz TMP0, TAB:CARG1->asize
-  |    evmergelo TMP3, TMP3, ZERO
-  |   lwz TMP1, TAB:CARG1->array
-  |  efdadd CARG2, CARG2, TMP3
-  |  addi TMP2, TMP2, 1
-  |   la RA, -8(BASE)
-  |  cmplw TMP0, TMP2
-  |   slwi TMP3, TMP2, 3
-  |  evstdd CARG2, 0(RA)
-  |  ble >2				// Not in array part?
-  |  evlddx TMP1, TMP1, TMP3
-  |1:
-  |  checknil TMP1
-  |   li RD, (0+1)*8
-  |  checkok ->fff_res			// End of iteration, return 0 results.
-  |   li RD, (2+1)*8
-  |  evstdd TMP1, 8(RA)
-  |  b ->fff_res
-  |2:  // Check for empty hash part first. Otherwise call C function.
-  |  lwz TMP0, TAB:CARG1->hmask
-  |  cmplwi TMP0, 0
-  |   li RD, (0+1)*8
-  |  beq ->fff_res
-  |   mr CARG2, TMP2
-  |  bl extern lj_tab_getinth		// (GCtab *t, int32_t key)
-  |  // Returns cTValue * or NULL.
-  |  cmplwi CRET1, 0
-  |   li RD, (0+1)*8
-  |  beq ->fff_res
-  |  evldd TMP1, 0(CRET1)
-  |  b <1
-  |
-  |.ffunc_1 ipairs
-  |  checktab TAB:CARG1
-  |   lwz PC, FRAME_PC(BASE)
-  |  checkfail ->fff_fallback
-#if LJ_52
-  |   lwz TAB:TMP2, TAB:CARG1->metatable
-  |  evldd CFUNC:TMP0, CFUNC:RB->upvalue[0]
-  |   cmplwi TAB:TMP2, 0
-  |  la RA, -8(BASE)
-  |   bne ->fff_fallback
-#else
-  |  evldd CFUNC:TMP0, CFUNC:RB->upvalue[0]
-  |  la RA, -8(BASE)
-#endif
-  |    evsplati TMP1, 0
-  |  li RD, (3+1)*8
-  |    evstdd TMP1, 8(BASE)
-  |  evstdd CFUNC:TMP0, 0(RA)
-  |  b ->fff_res
-  |
-  |//-- Base library: catch errors ----------------------------------------
-  |
-  |.ffunc pcall
-  |  cmplwi NARGS8:RC, 8
-  |   lbz TMP3, DISPATCH_GL(hookmask)(DISPATCH)
-  |  blt ->fff_fallback
-  |   mr TMP2, BASE
-  |   la BASE, 8(BASE)
-  |  // Remember active hook before pcall.
-  |  rlwinm TMP3, TMP3, 32-HOOK_ACTIVE_SHIFT, 31, 31
-  |   subi NARGS8:RC, NARGS8:RC, 8
-  |  addi PC, TMP3, 8+FRAME_PCALL
-  |  b ->vm_call_dispatch
-  |
-  |.ffunc_2 xpcall
-  |  lbz TMP3, DISPATCH_GL(hookmask)(DISPATCH)
-  |   mr TMP2, BASE
-  |  checkfunc CARG2			// Traceback must be a function.
-  |  checkfail ->fff_fallback
-  |   la BASE, 16(BASE)
-  |  // Remember active hook before pcall.
-  |  rlwinm TMP3, TMP3, 32-HOOK_ACTIVE_SHIFT, 31, 31
-  |   evstdd CARG2, 0(TMP2)		// Swap function and traceback.
-  |  subi NARGS8:RC, NARGS8:RC, 16
-  |   evstdd CARG1, 8(TMP2)
-  |  addi PC, TMP3, 16+FRAME_PCALL
-  |  b ->vm_call_dispatch
-  |
-  |//-- Coroutine library --------------------------------------------------
-  |
-  |.macro coroutine_resume_wrap, resume
-  |.if resume
-  |.ffunc_1 coroutine_resume
-  |  evmergehi TMP0, L:CARG1, L:CARG1
-  |.else
-  |.ffunc coroutine_wrap_aux
-  |  lwz L:CARG1, CFUNC:RB->upvalue[0].gcr
-  |.endif
-  |.if resume
-  |  cmpwi TMP0, LJ_TTHREAD
-  |  bne ->fff_fallback
-  |.endif
-  |  lbz TMP0, L:CARG1->status
-  |   lwz TMP1, L:CARG1->cframe
-  |    lwz CARG2, L:CARG1->top
-  |  cmplwi cr0, TMP0, LUA_YIELD
-  |    lwz TMP2, L:CARG1->base
-  |   cmplwi cr1, TMP1, 0
-  |   lwz TMP0, L:CARG1->maxstack
-  |    cmplw cr7, CARG2, TMP2
-  |   lwz PC, FRAME_PC(BASE)
-  |  crorc 4*cr6+lt, 4*cr0+gt, 4*cr1+eq		// st>LUA_YIELD || cframe!=0
-  |   add TMP2, CARG2, NARGS8:RC
-  |  crandc 4*cr6+gt, 4*cr7+eq, 4*cr0+eq	// base==top && st!=LUA_YIELD
-  |   cmplw cr1, TMP2, TMP0
-  |  cror 4*cr6+lt, 4*cr6+lt, 4*cr6+gt
-  |   stw PC, SAVE_PC
-  |  cror 4*cr6+lt, 4*cr6+lt, 4*cr1+gt		// cond1 || cond2 || stackov
-  |   stw BASE, L->base
-  |  blt cr6, ->fff_fallback
-  |1:
-  |.if resume
-  |  addi BASE, BASE, 8			// Keep resumed thread in stack for GC.
-  |  subi NARGS8:RC, NARGS8:RC, 8
-  |  subi TMP2, TMP2, 8
-  |.endif
-  |  stw TMP2, L:CARG1->top
-  |  li TMP1, 0
-  |  stw BASE, L->top
-  |2:  // Move args to coroutine.
-  |  cmpw TMP1, NARGS8:RC
-  |   evlddx TMP0, BASE, TMP1
-  |  beq >3
-  |   evstddx TMP0, CARG2, TMP1
-  |  addi TMP1, TMP1, 8
-  |  b <2
-  |3:
-  |  li CARG3, 0
-  |   mr L:SAVE0, L:CARG1
-  |  li CARG4, 0
-  |  bl ->vm_resume			// (lua_State *L, TValue *base, 0, 0)
-  |  // Returns thread status.
-  |4:
-  |  lwz TMP2, L:SAVE0->base
-  |   cmplwi CRET1, LUA_YIELD
-  |  lwz TMP3, L:SAVE0->top
-  |    li_vmstate INTERP
-  |  lwz BASE, L->base
-  |    st_vmstate
-  |   bgt >8
-  |  sub RD, TMP3, TMP2
-  |   lwz TMP0, L->maxstack
-  |  cmplwi RD, 0
-  |   add TMP1, BASE, RD
-  |  beq >6				// No results?
-  |  cmplw TMP1, TMP0
-  |   li TMP1, 0
-  |  bgt >9				// Need to grow stack?
-  |
-  |  subi TMP3, RD, 8
-  |   stw TMP2, L:SAVE0->top		// Clear coroutine stack.
-  |5:  // Move results from coroutine.
-  |  cmplw TMP1, TMP3
-  |   evlddx TMP0, TMP2, TMP1
-  |   evstddx TMP0, BASE, TMP1
-  |    addi TMP1, TMP1, 8
-  |  bne <5
-  |6:
-  |  andi. TMP0, PC, FRAME_TYPE
-  |.if resume
-  |  li TMP1, LJ_TTRUE
-  |   la RA, -8(BASE)
-  |  stw TMP1, -8(BASE)			// Prepend true to results.
-  |  addi RD, RD, 16
-  |.else
-  |  mr RA, BASE
-  |  addi RD, RD, 8
-  |.endif
-  |7:
-  |    stw PC, SAVE_PC
-  |   mr MULTRES, RD
-  |  beq ->BC_RET_Z
-  |  b ->vm_return
-  |
-  |8:  // Coroutine returned with error (at co->top-1).
-  |.if resume
-  |  andi. TMP0, PC, FRAME_TYPE
-  |  la TMP3, -8(TMP3)
-  |   li TMP1, LJ_TFALSE
-  |  evldd TMP0, 0(TMP3)
-  |   stw TMP3, L:SAVE0->top		// Remove error from coroutine stack.
-  |    li RD, (2+1)*8
-  |   stw TMP1, -8(BASE)		// Prepend false to results.
-  |    la RA, -8(BASE)
-  |  evstdd TMP0, 0(BASE)		// Copy error message.
-  |  b <7
-  |.else
-  |  mr CARG1, L
-  |  mr CARG2, L:SAVE0
-  |  bl extern lj_ffh_coroutine_wrap_err  // (lua_State *L, lua_State *co)
-  |.endif
-  |
-  |9:  // Handle stack expansion on return from yield.
-  |  mr CARG1, L
-  |  srwi CARG2, RD, 3
-  |  bl extern lj_state_growstack	// (lua_State *L, int n)
-  |  li CRET1, 0
-  |  b <4
-  |.endmacro
-  |
-  |  coroutine_resume_wrap 1		// coroutine.resume
-  |  coroutine_resume_wrap 0		// coroutine.wrap
-  |
-  |.ffunc coroutine_yield
-  |  lwz TMP0, L->cframe
-  |   add TMP1, BASE, NARGS8:RC
-  |   stw BASE, L->base
-  |  andi. TMP0, TMP0, CFRAME_RESUME
-  |   stw TMP1, L->top
-  |    li CRET1, LUA_YIELD
-  |  beq ->fff_fallback
-  |   stw ZERO, L->cframe
-  |    stb CRET1, L->status
-  |  b ->vm_leave_unw
-  |
-  |//-- Math library -------------------------------------------------------
-  |
-  |.ffunc_n math_abs
-  |  efdabs CRET1, CARG1
-  |  // Fallthrough.
-  |
-  |->fff_restv:
-  |  // CRET1 = TValue result.
-  |  lwz PC, FRAME_PC(BASE)
-  |   la RA, -8(BASE)
-  |  evstdd CRET1, 0(RA)
-  |->fff_res1:
-  |  // RA = results, PC = return.
-  |  li RD, (1+1)*8
-  |->fff_res:
-  |  // RA = results, RD = (nresults+1)*8, PC = return.
-  |  andi. TMP0, PC, FRAME_TYPE
-  |   mr MULTRES, RD
-  |  bne ->vm_return
-  |  lwz INS, -4(PC)
-  |  decode_RB8 RB, INS
-  |5:
-  |  cmplw RB, RD			// More results expected?
-  |   decode_RA8 TMP0, INS
-  |  bgt >6
-  |  ins_next1
-  |  // Adjust BASE. KBASE is assumed to be set for the calling frame.
-  |   sub BASE, RA, TMP0
-  |  ins_next2
-  |
-  |6:  // Fill up results with nil.
-  |  subi TMP1, RD, 8
-  |   addi RD, RD, 8
-  |  evstddx TISNIL, RA, TMP1
-  |  b <5
-  |
-  |.macro math_extern, func
-  |  .ffunc math_ .. func
-  |  cmplwi NARGS8:RC, 8
-  |   evldd CARG2, 0(BASE)
-  |  blt ->fff_fallback
-  |  checknum CARG2
-  |   evmergehi CARG1, CARG2, CARG2
-  |  checkfail ->fff_fallback
-  |  bl extern func@plt
-  |  evmergelo CRET1, CRET1, CRET2
-  |  b ->fff_restv
-  |.endmacro
-  |
-  |.macro math_extern2, func
-  |  .ffunc math_ .. func
-  |  cmplwi NARGS8:RC, 16
-  |   evldd CARG2, 0(BASE)
-  |   evldd CARG4, 8(BASE)
-  |  blt ->fff_fallback
-  |  evmergehi CARG1, CARG4, CARG2
-  |  checknum CARG1
-  |   evmergehi CARG3, CARG4, CARG4
-  |  checkanyfail ->fff_fallback
-  |  bl extern func@plt
-  |  evmergelo CRET1, CRET1, CRET2
-  |  b ->fff_restv
-  |.endmacro
-  |
-  |.macro math_round, func
-  |  .ffunc math_ .. func
-  |  cmplwi NARGS8:RC, 8
-  |   evldd CARG2, 0(BASE)
-  |  blt ->fff_fallback
-  |  checknum CARG2
-  |   evmergehi CARG1, CARG2, CARG2
-  |  checkfail ->fff_fallback
-  |   lwz PC, FRAME_PC(BASE)
-  |  bl ->vm_..func.._hilo;
-  |  la RA, -8(BASE)
-  |  evstdd CRET2, 0(RA)
-  |  b ->fff_res1
-  |.endmacro
-  |
-  |  math_round floor
-  |  math_round ceil
-  |
-  |  math_extern sqrt
-  |
-  |.ffunc math_log
-  |  cmplwi NARGS8:RC, 8
-  |   evldd CARG2, 0(BASE)
-  |  bne ->fff_fallback                 // Need exactly 1 argument.
-  |  checknum CARG2
-  |   evmergehi CARG1, CARG2, CARG2
-  |  checkfail ->fff_fallback
-  |  bl extern log@plt
-  |  evmergelo CRET1, CRET1, CRET2
-  |  b ->fff_restv
-  |
-  |  math_extern log10
-  |  math_extern exp
-  |  math_extern sin
-  |  math_extern cos
-  |  math_extern tan
-  |  math_extern asin
-  |  math_extern acos
-  |  math_extern atan
-  |  math_extern sinh
-  |  math_extern cosh
-  |  math_extern tanh
-  |  math_extern2 pow
-  |  math_extern2 atan2
-  |  math_extern2 fmod
-  |
-  |.ffunc math_ldexp
-  |  cmplwi NARGS8:RC, 16
-  |   evldd CARG2, 0(BASE)
-  |   evldd CARG4, 8(BASE)
-  |  blt ->fff_fallback
-  |  evmergehi CARG1, CARG4, CARG2
-  |  checknum CARG1
-  |  checkanyfail ->fff_fallback
-  |  efdctsi CARG3, CARG4
-  |  bl extern ldexp@plt
-  |  evmergelo CRET1, CRET1, CRET2
-  |  b ->fff_restv
-  |
-  |.ffunc math_frexp
-  |  cmplwi NARGS8:RC, 8
-  |   evldd CARG2, 0(BASE)
-  |  blt ->fff_fallback
-  |  checknum CARG2
-  |   evmergehi CARG1, CARG2, CARG2
-  |  checkfail ->fff_fallback
-  |  la CARG3, DISPATCH_GL(tmptv)(DISPATCH)
-  |   lwz PC, FRAME_PC(BASE)
-  |  bl extern frexp@plt
-  |   lwz TMP1, DISPATCH_GL(tmptv)(DISPATCH)
-  |  evmergelo CRET1, CRET1, CRET2
-  |   efdcfsi CRET2, TMP1
-  |   la RA, -8(BASE)
-  |  evstdd CRET1, 0(RA)
-  |  li RD, (2+1)*8
-  |   evstdd CRET2, 8(RA)
-  |  b ->fff_res
-  |
-  |.ffunc math_modf
-  |  cmplwi NARGS8:RC, 8
-  |   evldd CARG2, 0(BASE)
-  |  blt ->fff_fallback
-  |  checknum CARG2
-  |   evmergehi CARG1, CARG2, CARG2
-  |  checkfail ->fff_fallback
-  |  la CARG3, -8(BASE)
-  |   lwz PC, FRAME_PC(BASE)
-  |  bl extern modf@plt
-  |  evmergelo CRET1, CRET1, CRET2
-  |   la RA, -8(BASE)
-  |  evstdd CRET1, 0(BASE)
-  |  li RD, (2+1)*8
-  |  b ->fff_res
-  |
-  |.macro math_minmax, name, cmpop
-  |  .ffunc_1 name
-  |  checknum CARG1
-  |   li TMP1, 8
-  |  checkfail ->fff_fallback
-  |1:
-  |  evlddx CARG2, BASE, TMP1
-  |  cmplw cr1, TMP1, NARGS8:RC
-  |   checknum CARG2
-  |  bge cr1, ->fff_restv		// Ok, since CRET1 = CARG1.
-  |   checkfail ->fff_fallback
-  |  cmpop CARG2, CARG1
-  |   addi TMP1, TMP1, 8
-  |  crmove 4*cr0+lt, 4*cr0+gt
-  |  evsel CARG1, CARG2, CARG1
-  |  b <1
-  |.endmacro
-  |
-  |  math_minmax math_min, efdtstlt
-  |  math_minmax math_max, efdtstgt
-  |
-  |//-- String library -----------------------------------------------------
-  |
-  |.ffunc_1 string_len
-  |  checkstr STR:CARG1
-  |  checkfail ->fff_fallback
-  |  lwz TMP0, STR:CARG1->len
-  |  efdcfsi CRET1, TMP0
-  |  b ->fff_restv
-  |
-  |.ffunc string_byte			// Only handle the 1-arg case here.
-  |  cmplwi NARGS8:RC, 8
-  |   evldd STR:CARG1, 0(BASE)
-  |  bne ->fff_fallback			// Need exactly 1 argument.
-  |  checkstr STR:CARG1
-  |   la RA, -8(BASE)
-  |  checkfail ->fff_fallback
-  |  lwz TMP0, STR:CARG1->len
-  |   li RD, (0+1)*8
-  |    lbz TMP1, STR:CARG1[1]		// Access is always ok (NUL at end).
-  |   li TMP2, (1+1)*8
-  |  cmplwi TMP0, 0
-  |   lwz PC, FRAME_PC(BASE)
-  |    efdcfsi CRET1, TMP1
-  |  iseleq RD, RD, TMP2
-  |    evstdd CRET1, 0(RA)
-  |  b ->fff_res
-  |
-  |.ffunc string_char			// Only handle the 1-arg case here.
-  |  ffgccheck
-  |  cmplwi NARGS8:RC, 8
-  |   evldd CARG1, 0(BASE)
-  |  bne ->fff_fallback			// Exactly 1 argument.
-  |  checknum CARG1
-  |   la CARG2, DISPATCH_GL(tmptv)(DISPATCH)
-  |  checkfail ->fff_fallback
-  |  efdctsiz TMP0, CARG1
-  |   li CARG3, 1
-  |  cmplwi TMP0, 255
-  |   stb TMP0, 0(CARG2)
-  |  bgt ->fff_fallback
-  |->fff_newstr:
-  |  mr CARG1, L
-  |  stw BASE, L->base
-  |  stw PC, SAVE_PC
-  |  bl extern lj_str_new		// (lua_State *L, char *str, size_t l)
-  |  // Returns GCstr *.
-  |  lwz BASE, L->base
-  |   evmergelo STR:CRET1, TISSTR, STR:CRET1
-  |  b ->fff_restv
-  |
-  |.ffunc string_sub
-  |  ffgccheck
-  |  cmplwi NARGS8:RC, 16
-  |   evldd CARG3, 16(BASE)
-  |   evldd STR:CARG1, 0(BASE)
-  |  blt ->fff_fallback
-  |   evldd CARG2, 8(BASE)
-  |   li TMP2, -1
-  |  beq >1
-  |  checknum CARG3
-  |  checkfail ->fff_fallback
-  |  efdctsiz TMP2, CARG3
-  |1:
-  |  checknum CARG2
-  |  checkfail ->fff_fallback
-  |  checkstr STR:CARG1
-  |   efdctsiz TMP1, CARG2
-  |  checkfail ->fff_fallback
-  |   lwz TMP0, STR:CARG1->len
-  |  cmplw TMP0, TMP2			// len < end? (unsigned compare)
-  |   add TMP3, TMP2, TMP0
-  |  blt >5
-  |2:
-  |  cmpwi TMP1, 0			// start <= 0?
-  |   add TMP3, TMP1, TMP0
-  |  ble >7
-  |3:
-  |  sub. CARG3, TMP2, TMP1
-  |    addi CARG2, STR:CARG1, #STR-1
-  |   addi CARG3, CARG3, 1
-  |    add CARG2, CARG2, TMP1
-  |  isellt CARG3, r0, CARG3
-  |  b ->fff_newstr
-  |
-  |5:  // Negative end or overflow.
-  |  cmpw TMP0, TMP2
-  |   addi TMP3, TMP3, 1
-  |  iselgt TMP2, TMP3, TMP0		// end = end > len ? len : end+len+1
-  |  b <2
-  |
-  |7:  // Negative start or underflow.
-  |   cmpwi cr1, TMP3, 0
-  |  iseleq TMP1, r0, TMP3
-  |   isel TMP1, r0, TMP1, 4*cr1+lt
-  |  addi TMP1, TMP1, 1			// start = 1 + (start ? start+len : 0)
-  |  b <3
-  |
-  |.ffunc string_rep			// Only handle the 1-char case inline.
-  |  ffgccheck
-  |  cmplwi NARGS8:RC, 16
-  |   evldd CARG1, 0(BASE)
-  |   evldd CARG2, 8(BASE)
-  |  bne ->fff_fallback			// Exactly 2 arguments.
-  |  checknum CARG2
-  |  checkfail ->fff_fallback
-  |  checkstr STR:CARG1
-  |   efdctsiz CARG3, CARG2
-  |  checkfail ->fff_fallback
-  |   lwz TMP0, STR:CARG1->len
-  |  cmpwi CARG3, 0
-  |   lwz TMP1, DISPATCH_GL(tmpbuf.sz)(DISPATCH)
-  |  ble >2				// Count <= 0? (or non-int)
-  |   cmplwi TMP0, 1
-  |  subi TMP2, CARG3, 1
-  |   blt >2				// Zero length string?
-  |  cmplw cr1, TMP1, CARG3
-  |   bne ->fff_fallback		// Fallback for > 1-char strings.
-  |   lbz TMP0, STR:CARG1[1]
-  |   lwz CARG2, DISPATCH_GL(tmpbuf.buf)(DISPATCH)
-  |  blt cr1, ->fff_fallback
-  |1:  // Fill buffer with char. Yes, this is suboptimal code (do you care?).
-  |  cmplwi TMP2, 0
-  |   stbx TMP0, CARG2, TMP2
-  |   subi TMP2, TMP2, 1
-  |  bne <1
-  |  b ->fff_newstr
-  |2:  // Return empty string.
-  |  la STR:CRET1, DISPATCH_GL(strempty)(DISPATCH)
-  |  evmergelo CRET1, TISSTR, STR:CRET1
-  |  b ->fff_restv
-  |
-  |.ffunc string_reverse
-  |  ffgccheck
-  |  cmplwi NARGS8:RC, 8
-  |   evldd CARG1, 0(BASE)
-  |  blt ->fff_fallback
-  |  checkstr STR:CARG1
-  |   lwz TMP1, DISPATCH_GL(tmpbuf.sz)(DISPATCH)
-  |  checkfail ->fff_fallback
-  |  lwz CARG3, STR:CARG1->len
-  |   la CARG1, #STR(STR:CARG1)
-  |   lwz CARG2, DISPATCH_GL(tmpbuf.buf)(DISPATCH)
-  |   li TMP2, 0
-  |  cmplw TMP1, CARG3
-  |   subi TMP3, CARG3, 1
-  |  blt ->fff_fallback
-  |1:  // Reverse string copy.
-  |  cmpwi TMP3, 0
-  |   lbzx TMP1, CARG1, TMP2
-  |  blt ->fff_newstr
-  |   stbx TMP1, CARG2, TMP3
-  |  subi TMP3, TMP3, 1
-  |  addi TMP2, TMP2, 1
-  |  b <1
-  |
-  |.macro ffstring_case, name, lo
-  |  .ffunc name
-  |  ffgccheck
-  |  cmplwi NARGS8:RC, 8
-  |   evldd CARG1, 0(BASE)
-  |  blt ->fff_fallback
-  |  checkstr STR:CARG1
-  |   lwz TMP1, DISPATCH_GL(tmpbuf.sz)(DISPATCH)
-  |  checkfail ->fff_fallback
-  |  lwz CARG3, STR:CARG1->len
-  |   la CARG1, #STR(STR:CARG1)
-  |   lwz CARG2, DISPATCH_GL(tmpbuf.buf)(DISPATCH)
-  |  cmplw TMP1, CARG3
-  |   li TMP2, 0
-  |  blt ->fff_fallback
-  |1:  // ASCII case conversion.
-  |  cmplw TMP2, CARG3
-  |   lbzx TMP1, CARG1, TMP2
-  |  bge ->fff_newstr
-  |   subi TMP0, TMP1, lo
-  |    xori TMP3, TMP1, 0x20
-  |   cmplwi TMP0, 26
-  |   isellt TMP1, TMP3, TMP1
-  |   stbx TMP1, CARG2, TMP2
-  |  addi TMP2, TMP2, 1
-  |  b <1
-  |.endmacro
-  |
-  |ffstring_case string_lower, 65
-  |ffstring_case string_upper, 97
-  |
-  |//-- Table library ------------------------------------------------------
-  |
-  |.ffunc_1 table_getn
-  |  checktab CARG1
-  |  checkfail ->fff_fallback
-  |  bl extern lj_tab_len		// (GCtab *t)
-  |  // Returns uint32_t (but less than 2^31).
-  |  efdcfsi CRET1, CRET1
-  |  b ->fff_restv
-  |
-  |//-- Bit library --------------------------------------------------------
-  |
-  |.macro .ffunc_bit, name
-  |  .ffunc_n bit_..name
-  |  efdadd CARG1, CARG1, TOBIT
-  |.endmacro
-  |
-  |.ffunc_bit tobit
-  |->fff_resbit:
-  |  efdcfsi CRET1, CARG1
-  |  b ->fff_restv
-  |
-  |.macro .ffunc_bit_op, name, ins
-  |  .ffunc_bit name
-  |   li TMP1, 8
-  |1:
-  |  evlddx CARG2, BASE, TMP1
-  |  cmplw cr1, TMP1, NARGS8:RC
-  |   checknum CARG2
-  |  bge cr1, ->fff_resbit
-  |   checkfail ->fff_fallback
-  |  efdadd CARG2, CARG2, TOBIT
-  |  ins CARG1, CARG1, CARG2
-  |   addi TMP1, TMP1, 8
-  |  b <1
-  |.endmacro
-  |
-  |.ffunc_bit_op band, and
-  |.ffunc_bit_op bor, or
-  |.ffunc_bit_op bxor, xor
-  |
-  |.ffunc_bit bswap
-  |  rotlwi TMP0, CARG1, 8
-  |  rlwimi TMP0, CARG1, 24, 0, 7
-  |  rlwimi TMP0, CARG1, 24, 16, 23
-  |  efdcfsi CRET1, TMP0
-  |  b ->fff_restv
-  |
-  |.ffunc_bit bnot
-  |  not TMP0, CARG1
-  |  efdcfsi CRET1, TMP0
-  |  b ->fff_restv
-  |
-  |.macro .ffunc_bit_sh, name, ins, shmod
-  |  .ffunc_nn bit_..name
-  |  efdadd CARG2, CARG2, TOBIT
-  |   efdadd CARG1, CARG1, TOBIT
-  |.if shmod == 1
-  |  rlwinm CARG2, CARG2, 0, 27, 31
-  |.elif shmod == 2
-  |  neg CARG2, CARG2
-  |.endif
-  |  ins TMP0, CARG1, CARG2
-  |  efdcfsi CRET1, TMP0
-  |  b ->fff_restv
-  |.endmacro
-  |
-  |.ffunc_bit_sh lshift, slw, 1
-  |.ffunc_bit_sh rshift, srw, 1
-  |.ffunc_bit_sh arshift, sraw, 1
-  |.ffunc_bit_sh rol, rotlw, 0
-  |.ffunc_bit_sh ror, rotlw, 2
-  |
-  |//-----------------------------------------------------------------------
-  |
-  |->fff_fallback:			// Call fast function fallback handler.
-  |  // BASE = new base, RB = CFUNC, RC = nargs*8
-  |  lwz TMP3, CFUNC:RB->f
-  |    add TMP1, BASE, NARGS8:RC
-  |   lwz PC, FRAME_PC(BASE)		// Fallback may overwrite PC.
-  |    addi TMP0, TMP1, 8*LUA_MINSTACK
-  |     lwz TMP2, L->maxstack
-  |   stw PC, SAVE_PC			// Redundant (but a defined value).
-  |  cmplw TMP0, TMP2
-  |     stw BASE, L->base
-  |    stw TMP1, L->top
-  |   mr CARG1, L
-  |  bgt >5				// Need to grow stack.
-  |  mtctr TMP3
-  |  bctrl				// (lua_State *L)
-  |  // Either throws an error, or recovers and returns -1, 0 or nresults+1.
-  |  lwz BASE, L->base
-  |  cmpwi CRET1, 0
-  |   slwi RD, CRET1, 3
-  |   la RA, -8(BASE)
-  |  bgt ->fff_res			// Returned nresults+1?
-  |1:  // Returned 0 or -1: retry fast path.
-  |  lwz TMP0, L->top
-  |   lwz LFUNC:RB, FRAME_FUNC(BASE)
-  |  sub NARGS8:RC, TMP0, BASE
-  |  bne ->vm_call_tail			// Returned -1?
-  |  ins_callt				// Returned 0: retry fast path.
-  |
-  |// Reconstruct previous base for vmeta_call during tailcall.
-  |->vm_call_tail:
-  |  andi. TMP0, PC, FRAME_TYPE
-  |   rlwinm TMP1, PC, 0, 0, 28
-  |  bne >3
-  |  lwz INS, -4(PC)
-  |  decode_RA8 TMP1, INS
-  |  addi TMP1, TMP1, 8
-  |3:
-  |  sub TMP2, BASE, TMP1
-  |  b ->vm_call_dispatch		// Resolve again for tailcall.
-  |
-  |5:  // Grow stack for fallback handler.
-  |  li CARG2, LUA_MINSTACK
-  |  bl extern lj_state_growstack	// (lua_State *L, int n)
-  |  lwz BASE, L->base
-  |  cmpw TMP0, TMP0			// Set 4*cr0+eq to force retry.
-  |  b <1
-  |
-  |->fff_gcstep:			// Call GC step function.
-  |  // BASE = new base, RC = nargs*8
-  |  mflr SAVE0
-  |   stw BASE, L->base
-  |  add TMP0, BASE, NARGS8:RC
-  |   stw PC, SAVE_PC			// Redundant (but a defined value).
-  |  stw TMP0, L->top
-  |  mr CARG1, L
-  |  bl extern lj_gc_step		// (lua_State *L)
-  |   lwz BASE, L->base
-  |  mtlr SAVE0
-  |    lwz TMP0, L->top
-  |   sub NARGS8:RC, TMP0, BASE
-  |   lwz CFUNC:RB, FRAME_FUNC(BASE)
-  |  blr
-  |
-  |//-----------------------------------------------------------------------
-  |//-- Special dispatch targets -------------------------------------------
-  |//-----------------------------------------------------------------------
-  |
-  |->vm_record:				// Dispatch target for recording phase.
-  |.if JIT
-  |  NYI
-  |.endif
-  |
-  |->vm_rethook:			// Dispatch target for return hooks.
-  |  lbz TMP3, DISPATCH_GL(hookmask)(DISPATCH)
-  |  andi. TMP0, TMP3, HOOK_ACTIVE	// Hook already active?
-  |  beq >1
-  |5:  // Re-dispatch to static ins.
-  |  addi TMP1, TMP1, GG_DISP2STATIC	// Assumes decode_OP4 TMP1, INS.
-  |  lwzx TMP0, DISPATCH, TMP1
-  |  mtctr TMP0
-  |  bctr
-  |
-  |->vm_inshook:			// Dispatch target for instr/line hooks.
-  |  lbz TMP3, DISPATCH_GL(hookmask)(DISPATCH)
-  |  lwz TMP2, DISPATCH_GL(hookcount)(DISPATCH)
-  |  andi. TMP0, TMP3, HOOK_ACTIVE	// Hook already active?
-  |   rlwinm TMP0, TMP3, 31-LUA_HOOKLINE, 31, 0
-  |  bne <5
-  |
-  |   cmpwi cr1, TMP0, 0
-  |  addic. TMP2, TMP2, -1
-  |   beq cr1, <5
-  |  stw TMP2, DISPATCH_GL(hookcount)(DISPATCH)
-  |  beq >1
-  |   bge cr1, <5
-  |1:
-  |  mr CARG1, L
-  |   stw MULTRES, SAVE_MULTRES
-  |  mr CARG2, PC
-  |   stw BASE, L->base
-  |  // SAVE_PC must hold the _previous_ PC. The callee updates it with PC.
-  |  bl extern lj_dispatch_ins		// (lua_State *L, const BCIns *pc)
-  |3:
-  |  lwz BASE, L->base
-  |4:  // Re-dispatch to static ins.
-  |  lwz INS, -4(PC)
-  |  decode_OP4 TMP1, INS
-  |   decode_RB8 RB, INS
-  |  addi TMP1, TMP1, GG_DISP2STATIC
-  |   decode_RD8 RD, INS
-  |  lwzx TMP0, DISPATCH, TMP1
-  |   decode_RA8 RA, INS
-  |   decode_RC8 RC, INS
-  |  mtctr TMP0
-  |  bctr
-  |
-  |->cont_hook:				// Continue from hook yield.
-  |  addi PC, PC, 4
-  |  lwz MULTRES, -20(RB)		// Restore MULTRES for *M ins.
-  |  b <4
-  |
-  |->vm_hotloop:			// Hot loop counter underflow.
-  |.if JIT
-  |  NYI
-  |.endif
-  |
-  |->vm_callhook:			// Dispatch target for call hooks.
-  |  mr CARG2, PC
-  |.if JIT
-  |  b >1
-  |.endif
-  |
-  |->vm_hotcall:			// Hot call counter underflow.
-  |.if JIT
-  |  ori CARG2, PC, 1
-  |1:
-  |.endif
-  |  add TMP0, BASE, RC
-  |   stw PC, SAVE_PC
-  |  mr CARG1, L
-  |   stw BASE, L->base
-  |  sub RA, RA, BASE
-  |   stw TMP0, L->top
-  |  bl extern lj_dispatch_call		// (lua_State *L, const BCIns *pc)
-  |  // Returns ASMFunction.
-  |  lwz BASE, L->base
-  |   lwz TMP0, L->top
-  |   stw ZERO, SAVE_PC			// Invalidate for subsequent line hook.
-  |  sub NARGS8:RC, TMP0, BASE
-  |  add RA, BASE, RA
-  |  lwz LFUNC:RB, FRAME_FUNC(BASE)
-  |  mtctr CRET1
-  |  bctr
-  |
-  |//-----------------------------------------------------------------------
-  |//-- Trace exit handler -------------------------------------------------
-  |//-----------------------------------------------------------------------
-  |
-  |->vm_exit_handler:
-  |.if JIT
-  |  NYI
-  |.endif
-  |->vm_exit_interp:
-  |.if JIT
-  |  NYI
-  |.endif
-  |
-  |//-----------------------------------------------------------------------
-  |//-- Math helper functions ----------------------------------------------
-  |//-----------------------------------------------------------------------
-  |
-  |// FP value rounding. Called by math.floor/math.ceil fast functions
-  |// and from JIT code.
-  |//
-  |// This can be inlined if the CPU has the frin/friz/frip/frim instructions.
-  |// The alternative hard-float approaches have a deep dependency chain.
-  |// The resulting latency is at least 3x-7x the double-precision FP latency
-  |// (e500v2: 6cy, e600: 5cy, Cell: 10cy) or around 20-70 cycles.
-  |//
-  |// The soft-float approach is tedious, but much faster (e500v2: ~11cy/~6cy).
-  |// However it relies on a fast way to transfer the FP value to GPRs
-  |// (e500v2: 0cy for lo-word, 1cy for hi-word).
-  |//
-  |.macro vm_round, name, mode
-  |  // Used temporaries: TMP0, TMP1, TMP2, TMP3.
-  |->name.._efd:			// Input: CARG2, output: CRET2
-  |  evmergehi CARG1, CARG2, CARG2
-  |->name.._hilo:
-  |  // Input: CARG1 (hi), CARG2 (hi, lo), output: CRET2
-  |  rlwinm TMP2, CARG1, 12, 21, 31
-  |  addic. TMP2, TMP2, -1023		// exp = exponent(x) - 1023
-  |   li TMP1, -1
-  |  cmplwi cr1, TMP2, 51		// 0 <= exp <= 51?
-  |   subfic TMP0, TMP2, 52
-  |  bgt cr1, >1
-  |   lus TMP3, 0xfff0
-  |  slw TMP0, TMP1, TMP0		// lomask = -1 << (52-exp)
-  |   sraw TMP1, TMP3, TMP2		// himask = (int32_t)0xfff00000 >> exp
-  |.if mode == 2		// trunc(x):
-  |  evmergelo TMP0, TMP1, TMP0
-  |  evand CRET2, CARG2, TMP0		// hi &= himask, lo &= lomask
-  |.else
-  |  andc TMP2, CARG2, TMP0
-  |   andc TMP3, CARG1, TMP1
-  |  or TMP2, TMP2, TMP3		// ztest = (hi&~himask) | (lo&~lomask)
-  |   srawi TMP3, CARG1, 31		// signmask = (int32_t)hi >> 31
-  |.if mode == 0		// floor(x):
-  |  and. TMP2, TMP2, TMP3		// iszero = ((ztest & signmask) == 0)
-  |.else			// ceil(x):
-  |  andc. TMP2, TMP2, TMP3		// iszero = ((ztest & ~signmask) == 0)
-  |.endif
-  |  and CARG2, CARG2, TMP0		// lo &= lomask
-  |  and CARG1, CARG1, TMP1		// hi &= himask
-  |   subc TMP0, CARG2, TMP0
-  |  iseleq TMP0, CARG2, TMP0		// lo = iszero ? lo : lo-lomask
-  |   sube TMP1, CARG1, TMP1
-  |  iseleq TMP1, CARG1, TMP1		// hi = iszero ? hi : hi-himask+carry
-  |  evmergelo CRET2, TMP1, TMP0
-  |.endif
-  |  blr
-  |1:
-  |  bgtlr				// Already done if >=2^52, +-inf or nan.
-  |.if mode == 2		// trunc(x):
-  |  rlwinm TMP1, CARG1, 0, 0, 0	// hi = sign(x)
-  |  li TMP0, 0
-  |  evmergelo CRET2, TMP1, TMP0
-  |.else
-  |  rlwinm TMP2, CARG1, 0, 1, 31
-  |  srawi TMP0, CARG1, 31		// signmask = (int32_t)hi >> 31
-  |  or TMP2, TMP2, CARG2		// ztest = abs(hi) | lo
-  |   lus TMP1, 0x3ff0
-  |.if mode == 0		// floor(x):
-  |  and. TMP2, TMP2, TMP0		// iszero = ((ztest & signmask) == 0)
-  |.else			// ceil(x):
-  |  andc. TMP2, TMP2, TMP0		// iszero = ((ztest & ~signmask) == 0)
-  |.endif
-  |   li TMP0, 0
-  |  iseleq TMP1, r0, TMP1
-  |  rlwimi CARG1, TMP1, 0, 1, 31	// hi = sign(x) | (iszero ? 0.0 : 1.0)
-  |  evmergelo CRET2, CARG1, TMP0
-  |.endif
-  |  blr
-  |.endmacro
-  |
-  |->vm_floor:
-  |  mflr CARG3
-  |  evmergelo CARG2, CARG1, CARG2
-  |  bl ->vm_floor_hilo
-  |  mtlr CARG3
-  |  evmergehi CRET1, CRET2, CRET2
-  |  blr
-  |
-  |  vm_round vm_floor, 0
-  |  vm_round vm_ceil,  1
-  |.if JIT
-  |  vm_round vm_trunc, 2
-  |.else
-  |->vm_trunc_efd:
-  |->vm_trunc_hilo:
-  |.endif
-  |
-  |//-----------------------------------------------------------------------
-  |//-- Miscellaneous functions --------------------------------------------
-  |//-----------------------------------------------------------------------
-  |
-  |//-----------------------------------------------------------------------
-  |//-- FFI helper functions -----------------------------------------------
-  |//-----------------------------------------------------------------------
-  |
-  |->vm_ffi_call:
-  |.if FFI
-  |  NYI
-  |.endif
-  |
-  |//-----------------------------------------------------------------------
-}
-
-/* Generate the code for a single instruction. */
-static void build_ins(BuildCtx *ctx, BCOp op, int defop)
-{
-  int vk = 0;
-  |=>defop:
-
-  switch (op) {
-
-  /* -- Comparison ops ---------------------------------------------------- */
-
-  /* Remember: all ops branch for a true comparison, fall through otherwise. */
-
-  case BC_ISLT: case BC_ISGE: case BC_ISLE: case BC_ISGT:
-    |  // RA = src1*8, RD = src2*8, JMP with RD = target
-    |  evlddx TMP0, BASE, RA
-    |   addi PC, PC, 4
-    |  evlddx TMP1, BASE, RD
-    |   addis TMP3, PC, -(BCBIAS_J*4 >> 16)
-    |   lwz TMP2, -4(PC)
-    |  evmergehi RB, TMP0, TMP1
-    |   decode_RD4 TMP2, TMP2
-    |  checknum RB
-    |   add TMP2, TMP2, TMP3
-    |  checkanyfail ->vmeta_comp
-    |  efdcmplt TMP0, TMP1
-    if (op == BC_ISLE || op == BC_ISGT) {
-      |  efdcmpeq cr1, TMP0, TMP1
-      |  cror 4*cr0+gt, 4*cr0+gt, 4*cr1+gt
-    }
-    if (op == BC_ISLT || op == BC_ISLE) {
-      |  iselgt PC, TMP2, PC
-    } else {
-      |  iselgt PC, PC, TMP2
-    }
-    |  ins_next
-    break;
-
-  case BC_ISEQV: case BC_ISNEV:
-    vk = op == BC_ISEQV;
-    |  // RA = src1*8, RD = src2*8, JMP with RD = target
-    |  evlddx CARG2, BASE, RA
-    |   addi PC, PC, 4
-    |  evlddx CARG3, BASE, RD
-    |   addis TMP3, PC, -(BCBIAS_J*4 >> 16)
-    |   lwz TMP2, -4(PC)
-    |  evmergehi RB, CARG2, CARG3
-    |   decode_RD4 TMP2, TMP2
-    |  checknum RB
-    |   add TMP2, TMP2, TMP3
-    |  checkanyfail >5
-    |  efdcmpeq CARG2, CARG3
-    if (vk) {
-      |  iselgt PC, TMP2, PC
-    } else {
-      |  iselgt PC, PC, TMP2
-    }
-    |1:
-    |  ins_next
-    |
-    |5:  // Either or both types are not numbers.
-    |  evcmpeq CARG2, CARG3
-    |   not TMP3, RB
-    |   cmplwi cr1, TMP3, ~LJ_TISPRI		// Primitive?
-    |  crorc 4*cr7+lt, 4*cr0+so, 4*cr0+lt	// 1: Same tv or different type.
-    |   cmplwi cr6, TMP3, ~LJ_TISTABUD		// Table or userdata?
-    |  crandc 4*cr7+gt, 4*cr0+lt, 4*cr1+gt	// 2: Same type and primitive.
-    |   mr SAVE0, PC
-    if (vk) {
-      |  isel PC, TMP2, PC, 4*cr7+gt
-    } else {
-      |  isel TMP2, PC, TMP2, 4*cr7+gt
-    }
-    |  cror 4*cr7+lt, 4*cr7+lt, 4*cr7+gt	// 1 or 2.
-    if (vk) {
-      |  isel PC, TMP2, PC, 4*cr0+so
-    } else {
-      |  isel PC, PC, TMP2, 4*cr0+so
-    }
-    |  blt cr7, <1			// Done if 1 or 2.
-    |  blt cr6, <1			// Done if not tab/ud.
-    |
-    |  // Different tables or userdatas. Need to check __eq metamethod.
-    |  // Field metatable must be at same offset for GCtab and GCudata!
-    |  lwz TAB:TMP2, TAB:CARG2->metatable
-    |   li CARG4, 1-vk			// ne = 0 or 1.
-    |  cmplwi TAB:TMP2, 0
-    |  beq <1				// No metatable?
-    |  lbz TMP2, TAB:TMP2->nomm
-    |  andi. TMP2, TMP2, 1<<MM_eq
-    |  bne <1				// Or 'no __eq' flag set?
-    |  mr PC, SAVE0			// Restore old PC.
-    |  b ->vmeta_equal			// Handle __eq metamethod.
-    break;
-
-  case BC_ISEQS: case BC_ISNES:
-    vk = op == BC_ISEQS;
-    |  // RA = src*8, RD = str_const*8 (~), JMP with RD = target
-    |  evlddx TMP0, BASE, RA
-    |   srwi RD, RD, 1
-    |    lwz INS, 0(PC)
-    |   subfic RD, RD, -4
-    |    addi PC, PC, 4
-    |   lwzx STR:TMP1, KBASE, RD	// KBASE-4-str_const*4
-    |    addis TMP3, PC, -(BCBIAS_J*4 >> 16)
-    |    decode_RD4 TMP2, INS
-    |   evmergelo STR:TMP1, TISSTR, STR:TMP1
-    |    add TMP2, TMP2, TMP3
-    |  evcmpeq TMP0, STR:TMP1
-    if (vk) {
-      |  isel PC, TMP2, PC, 4*cr0+so
-    } else {
-      |  isel PC, PC, TMP2, 4*cr0+so
-    }
-    |  ins_next
-    break;
-
-  case BC_ISEQN: case BC_ISNEN:
-    vk = op == BC_ISEQN;
-    |  // RA = src*8, RD = num_const*8, JMP with RD = target
-    |  evlddx TMP0, BASE, RA
-    |   addi PC, PC, 4
-    |  evlddx TMP1, KBASE, RD
-    |   addis TMP3, PC, -(BCBIAS_J*4 >> 16)
-    |   lwz INS, -4(PC)
-    |  checknum TMP0
-    |  checkfail >5
-    |  efdcmpeq TMP0, TMP1
-    |1:
-    |   decode_RD4 TMP2, INS
-    |   add TMP2, TMP2, TMP3
-    if (vk) {
-      |  iselgt PC, TMP2, PC
-      |5:
-    } else {
-      |  iselgt PC, PC, TMP2
-    }
-    |3:
-    |  ins_next
-    if (!vk) {
-      |5:
-      |  decode_RD4 TMP2, INS
-      |  add PC, TMP2, TMP3
-      |  b <3
-    }
-    break;
-
-  case BC_ISEQP: case BC_ISNEP:
-    vk = op == BC_ISEQP;
-    |  // RA = src*8, RD = primitive_type*8 (~), JMP with RD = target
-    |  lwzx TMP0, BASE, RA
-    |   srwi TMP1, RD, 3
-    |    lwz INS, 0(PC)
-    |    addi PC, PC, 4
-    |   not TMP1, TMP1
-    |    addis TMP3, PC, -(BCBIAS_J*4 >> 16)
-    |  cmplw TMP0, TMP1
-    |    decode_RD4 TMP2, INS
-    |    add TMP2, TMP2, TMP3
-    if (vk) {
-      |  iseleq PC, TMP2, PC
-    } else {
-      |  iseleq PC, PC, TMP2
-    }
-    |  ins_next
-    break;
-
-  /* -- Unary test and copy ops ------------------------------------------- */
-
-  case BC_ISTC: case BC_ISFC: case BC_IST: case BC_ISF:
-    |  // RA = dst*8 or unused, RD = src*8, JMP with RD = target
-    |  evlddx TMP0, BASE, RD
-    |   evaddw TMP1, TISNIL, TISNIL	// Synthesize LJ_TFALSE.
-    |   lwz INS, 0(PC)
-    |  evcmpltu TMP0, TMP1
-    |   addi PC, PC, 4
-    if (op == BC_IST || op == BC_ISF) {
-      |  addis TMP3, PC, -(BCBIAS_J*4 >> 16)
-      |  decode_RD4 TMP2, INS
-      |  add TMP2, TMP2, TMP3
-      if (op == BC_IST) {
-	|  isellt PC, TMP2, PC
-      } else {
-	|  isellt PC, PC, TMP2
-      }
-    } else {
-      if (op == BC_ISTC) {
-	|  checkfail >1
-      } else {
-	|  checkok >1
-      }
-      |  addis PC, PC, -(BCBIAS_J*4 >> 16)
-      |  decode_RD4 TMP2, INS
-      |   evstddx TMP0, BASE, RA
-      |  add PC, PC, TMP2
-      |1:
-    }
-    |  ins_next
-    break;
-
-  /* -- Unary ops --------------------------------------------------------- */
-
-  case BC_MOV:
-    |  // RA = dst*8, RD = src*8
-    |  ins_next1
-    |  evlddx TMP0, BASE, RD
-    |  evstddx TMP0, BASE, RA
-    |  ins_next2
-    break;
-  case BC_NOT:
-    |  // RA = dst*8, RD = src*8
-    |  ins_next1
-    |  lwzx TMP0, BASE, RD
-    |  subfic TMP1, TMP0, LJ_TTRUE
-    |  adde TMP0, TMP0, TMP1
-    |  stwx TMP0, BASE, RA
-    |  ins_next2
-    break;
-  case BC_UNM:
-    |  // RA = dst*8, RD = src*8
-    |  evlddx TMP0, BASE, RD
-    |  checknum TMP0
-    |  checkfail ->vmeta_unm
-    |  efdneg TMP0, TMP0
-    |  ins_next1
-    |  evstddx TMP0, BASE, RA
-    |  ins_next2
-    break;
-  case BC_LEN:
-    |  // RA = dst*8, RD = src*8
-    |  evlddx CARG1, BASE, RD
-    |  checkstr CARG1
-    |  checkfail >2
-    |  lwz CRET1, STR:CARG1->len
-    |1:
-    |  ins_next1
-    |  efdcfsi TMP0, CRET1
-    |  evstddx TMP0, BASE, RA
-    |  ins_next2
-    |2:
-    |  checktab CARG1
-    |  checkfail ->vmeta_len
-#if LJ_52
-    |  lwz TAB:TMP2, TAB:CARG1->metatable
-    |  cmplwi TAB:TMP2, 0
-    |  bne >9
-    |3:
-#endif
-    |->BC_LEN_Z:
-    |  bl extern lj_tab_len		// (GCtab *t)
-    |  // Returns uint32_t (but less than 2^31).
-    |  b <1
-#if LJ_52
-    |9:
-    |  lbz TMP0, TAB:TMP2->nomm
-    |  andi. TMP0, TMP0, 1<<MM_len
-    |  bne <3				// 'no __len' flag set: done.
-    |  b ->vmeta_len
-#endif
-    break;
-
-  /* -- Binary ops -------------------------------------------------------- */
-
-    |.macro ins_arithpre, t0, t1
-    |  // RA = dst*8, RB = src1*8, RC = src2*8 | num_const*8
-    ||vk = ((int)op - BC_ADDVN) / (BC_ADDNV-BC_ADDVN);
-    ||switch (vk) {
-    ||case 0:
-    |   evlddx t0, BASE, RB
-    |    checknum t0
-    |   evlddx t1, KBASE, RC
-    |    checkfail ->vmeta_arith_vn
-    ||  break;
-    ||case 1:
-    |   evlddx t1, BASE, RB
-    |    checknum t1
-    |   evlddx t0, KBASE, RC
-    |    checkfail ->vmeta_arith_nv
-    ||  break;
-    ||default:
-    |   evlddx t0, BASE, RB
-    |   evlddx t1, BASE, RC
-    |    evmergehi TMP2, t0, t1
-    |    checknum TMP2
-    |    checkanyfail ->vmeta_arith_vv
-    ||  break;
-    ||}
-    |.endmacro
-    |
-    |.macro ins_arith, ins
-    |  ins_arithpre TMP0, TMP1
-    |  ins_next1
-    |  ins TMP0, TMP0, TMP1
-    |  evstddx TMP0, BASE, RA
-    |  ins_next2
-    |.endmacro
-
-  case BC_ADDVN: case BC_ADDNV: case BC_ADDVV:
-    |  ins_arith efdadd
-    break;
-  case BC_SUBVN: case BC_SUBNV: case BC_SUBVV:
-    |  ins_arith efdsub
-    break;
-  case BC_MULVN: case BC_MULNV: case BC_MULVV:
-    |  ins_arith efdmul
-    break;
-  case BC_DIVVN: case BC_DIVNV: case BC_DIVVV:
-    |  ins_arith efddiv
-    break;
-  case BC_MODVN:
-    |  ins_arithpre RD, SAVE0
-    |->BC_MODVN_Z:
-    |  efddiv CARG2, RD, SAVE0
-    |  bl ->vm_floor_efd		// floor(b/c)
-    |  efdmul TMP0, CRET2, SAVE0
-    |  ins_next1
-    |  efdsub TMP0, RD, TMP0		// b - floor(b/c)*c
-    |  evstddx TMP0, BASE, RA
-    |  ins_next2
-    break;
-  case BC_MODNV: case BC_MODVV:
-    |  ins_arithpre RD, SAVE0
-    |  b ->BC_MODVN_Z			// Avoid 3 copies. It's slow anyway.
-    break;
-  case BC_POW:
-    |  evlddx CARG2, BASE, RB
-    |  evlddx CARG4, BASE, RC
-    |  evmergehi CARG1, CARG4, CARG2
-    |  checknum CARG1
-    |   evmergehi CARG3, CARG4, CARG4
-    |  checkanyfail ->vmeta_arith_vv
-    |  bl extern pow@plt
-    |  evmergelo CRET2, CRET1, CRET2
-    |  evstddx CRET2, BASE, RA
-    |  ins_next
-    break;
-
-  case BC_CAT:
-    |  // RA = dst*8, RB = src_start*8, RC = src_end*8
-    |  sub CARG3, RC, RB
-    |   stw BASE, L->base
-    |  add CARG2, BASE, RC
-    |  mr SAVE0, RB
-    |->BC_CAT_Z:
-    |   stw PC, SAVE_PC
-    |  mr CARG1, L
-    |  srwi CARG3, CARG3, 3
-    |  bl extern lj_meta_cat		// (lua_State *L, TValue *top, int left)
-    |  // Returns NULL (finished) or TValue * (metamethod).
-    |  cmplwi CRET1, 0
-    |   lwz BASE, L->base
-    |  bne ->vmeta_binop
-    |  evlddx TMP0, BASE, SAVE0		// Copy result from RB to RA.
-    |  evstddx TMP0, BASE, RA
-    |  ins_next
-    break;
-
-  /* -- Constant ops ------------------------------------------------------ */
-
-  case BC_KSTR:
-    |  // RA = dst*8, RD = str_const*8 (~)
-    |  ins_next1
-    |  srwi TMP1, RD, 1
-    |  subfic TMP1, TMP1, -4
-    |  lwzx TMP0, KBASE, TMP1		// KBASE-4-str_const*4
-    |  evmergelo TMP0, TISSTR, TMP0
-    |  evstddx TMP0, BASE, RA
-    |  ins_next2
-    break;
-  case BC_KCDATA:
-    |.if FFI
-    |  // RA = dst*8, RD = cdata_const*8 (~)
-    |  ins_next1
-    |  srwi TMP1, RD, 1
-    |  subfic TMP1, TMP1, -4
-    |  lwzx TMP0, KBASE, TMP1		// KBASE-4-cdata_const*4
-    |  li TMP2, LJ_TCDATA
-    |  evmergelo TMP0, TMP2, TMP0
-    |  evstddx TMP0, BASE, RA
-    |  ins_next2
-    |.endif
-    break;
-  case BC_KSHORT:
-    |  // RA = dst*8, RD = int16_literal*8
-    |  srwi TMP1, RD, 3
-    |  extsh TMP1, TMP1
-    |  ins_next1
-    |  efdcfsi TMP0, TMP1
-    |  evstddx TMP0, BASE, RA
-    |  ins_next2
-    break;
-  case BC_KNUM:
-    |  // RA = dst*8, RD = num_const*8
-    |  evlddx TMP0, KBASE, RD
-    |  ins_next1
-    |  evstddx TMP0, BASE, RA
-    |  ins_next2
-    break;
-  case BC_KPRI:
-    |  // RA = dst*8, RD = primitive_type*8 (~)
-    |  srwi TMP1, RD, 3
-    |  not TMP0, TMP1
-    |  ins_next1
-    |  stwx TMP0, BASE, RA
-    |  ins_next2
-    break;
-  case BC_KNIL:
-    |  // RA = base*8, RD = end*8
-    |  evstddx TISNIL, BASE, RA
-    |   addi RA, RA, 8
-    |1:
-    |  evstddx TISNIL, BASE, RA
-    |  cmpw RA, RD
-    |   addi RA, RA, 8
-    |  blt <1
-    |  ins_next_
-    break;
-
-  /* -- Upvalue and function ops ------------------------------------------ */
-
-  case BC_UGET:
-    |  // RA = dst*8, RD = uvnum*8
-    |  ins_next1
-    |  lwz LFUNC:RB, FRAME_FUNC(BASE)
-    |   srwi RD, RD, 1
-    |   addi RD, RD, offsetof(GCfuncL, uvptr)
-    |  lwzx UPVAL:RB, LFUNC:RB, RD
-    |  lwz TMP1, UPVAL:RB->v
-    |  evldd TMP0, 0(TMP1)
-    |  evstddx TMP0, BASE, RA
-    |  ins_next2
-    break;
-  case BC_USETV:
-    |  // RA = uvnum*8, RD = src*8
-    |  lwz LFUNC:RB, FRAME_FUNC(BASE)
-    |    srwi RA, RA, 1
-    |    addi RA, RA, offsetof(GCfuncL, uvptr)
-    |   evlddx TMP1, BASE, RD
-    |  lwzx UPVAL:RB, LFUNC:RB, RA
-    |  lbz TMP3, UPVAL:RB->marked
-    |   lwz CARG2, UPVAL:RB->v
-    |  andi. TMP3, TMP3, LJ_GC_BLACK	// isblack(uv)
-    |    lbz TMP0, UPVAL:RB->closed
-    |   evmergehi TMP2, TMP1, TMP1
-    |   evstdd TMP1, 0(CARG2)
-    |    cmplwi cr1, TMP0, 0
-    |  cror 4*cr0+eq, 4*cr0+eq, 4*cr1+eq
-    |   subi TMP2, TMP2, (LJ_TISNUM+1)
-    |  bne >2				// Upvalue is closed and black?
-    |1:
-    |  ins_next
-    |
-    |2:  // Check if new value is collectable.
-    |  cmplwi TMP2, LJ_TISGCV - (LJ_TISNUM+1)
-    |  bge <1				// tvisgcv(v)
-    |  lbz TMP3, GCOBJ:TMP1->gch.marked
-    |  andi. TMP3, TMP3, LJ_GC_WHITES	// iswhite(v)
-    |   la CARG1, GG_DISP2G(DISPATCH)
-    |  // Crossed a write barrier. Move the barrier forward.
-    |  beq <1
-    |  bl extern lj_gc_barrieruv	// (global_State *g, TValue *tv)
-    |  b <1
-    break;
-  case BC_USETS:
-    |  // RA = uvnum*8, RD = str_const*8 (~)
-    |  lwz LFUNC:RB, FRAME_FUNC(BASE)
-    |   srwi TMP1, RD, 1
-    |    srwi RA, RA, 1
-    |   subfic TMP1, TMP1, -4
-    |    addi RA, RA, offsetof(GCfuncL, uvptr)
-    |   lwzx STR:TMP1, KBASE, TMP1	// KBASE-4-str_const*4
-    |  lwzx UPVAL:RB, LFUNC:RB, RA
-    |   evmergelo STR:TMP1, TISSTR, STR:TMP1
-    |  lbz TMP3, UPVAL:RB->marked
-    |   lwz CARG2, UPVAL:RB->v
-    |  andi. TMP3, TMP3, LJ_GC_BLACK	// isblack(uv)
-    |   lbz TMP3, STR:TMP1->marked
-    |   lbz TMP2, UPVAL:RB->closed
-    |   evstdd STR:TMP1, 0(CARG2)
-    |  bne >2
-    |1:
-    |  ins_next
-    |
-    |2:  // Check if string is white and ensure upvalue is closed.
-    |  andi. TMP3, TMP3, LJ_GC_WHITES	// iswhite(str)
-    |   cmplwi cr1, TMP2, 0
-    |  cror 4*cr0+eq, 4*cr0+eq, 4*cr1+eq
-    |   la CARG1, GG_DISP2G(DISPATCH)
-    |  // Crossed a write barrier. Move the barrier forward.
-    |  beq <1
-    |  bl extern lj_gc_barrieruv	// (global_State *g, TValue *tv)
-    |  b <1
-    break;
-  case BC_USETN:
-    |  // RA = uvnum*8, RD = num_const*8
-    |  ins_next1
-    |  lwz LFUNC:RB, FRAME_FUNC(BASE)
-    |   srwi RA, RA, 1
-    |   addi RA, RA, offsetof(GCfuncL, uvptr)
-    |    evlddx TMP0, KBASE, RD
-    |  lwzx UPVAL:RB, LFUNC:RB, RA
-    |  lwz TMP1, UPVAL:RB->v
-    |  evstdd TMP0, 0(TMP1)
-    |  ins_next2
-    break;
-  case BC_USETP:
-    |  // RA = uvnum*8, RD = primitive_type*8 (~)
-    |  ins_next1
-    |  lwz LFUNC:RB, FRAME_FUNC(BASE)
-    |   srwi RA, RA, 1
-    |   addi RA, RA, offsetof(GCfuncL, uvptr)
-    |    srwi TMP0, RD, 3
-    |  lwzx UPVAL:RB, LFUNC:RB, RA
-    |    not TMP0, TMP0
-    |  lwz TMP1, UPVAL:RB->v
-    |  stw TMP0, 0(TMP1)
-    |  ins_next2
-    break;
-
-  case BC_UCLO:
-    |  // RA = level*8, RD = target
-    |  lwz TMP1, L->openupval
-    |  branch_RD			// Do this first since RD is not saved.
-    |   stw BASE, L->base
-    |  cmplwi TMP1, 0
-    |   mr CARG1, L
-    |  beq >1
-    |   add CARG2, BASE, RA
-    |  bl extern lj_func_closeuv	// (lua_State *L, TValue *level)
-    |  lwz BASE, L->base
-    |1:
-    |  ins_next
-    break;
-
-  case BC_FNEW:
-    |  // RA = dst*8, RD = proto_const*8 (~) (holding function prototype)
-    |  srwi TMP1, RD, 1
-    |   stw BASE, L->base
-    |  subfic TMP1, TMP1, -4
-    |   stw PC, SAVE_PC
-    |  lwzx CARG2, KBASE, TMP1		// KBASE-4-tab_const*4
-    |   mr CARG1, L
-    |  lwz CARG3, FRAME_FUNC(BASE)
-    |  // (lua_State *L, GCproto *pt, GCfuncL *parent)
-    |  bl extern lj_func_newL_gc
-    |  // Returns GCfuncL *.
-    |  lwz BASE, L->base
-    |  evmergelo LFUNC:CRET1, TISFUNC, LFUNC:CRET1
-    |  evstddx LFUNC:CRET1, BASE, RA
-    |  ins_next
-    break;
-
-  /* -- Table ops --------------------------------------------------------- */
-
-  case BC_TNEW:
-  case BC_TDUP:
-    |  // RA = dst*8, RD = (hbits|asize)*8 | tab_const*8 (~)
-    |  lwz TMP0, DISPATCH_GL(gc.total)(DISPATCH)
-    |   mr CARG1, L
-    |  lwz TMP1, DISPATCH_GL(gc.threshold)(DISPATCH)
-    |   stw BASE, L->base
-    |  cmplw TMP0, TMP1
-    |   stw PC, SAVE_PC
-    |  bge >5
-    |1:
-    if (op == BC_TNEW) {
-      |  rlwinm CARG2, RD, 29, 21, 31
-      |  rlwinm CARG3, RD, 18, 27, 31
-      |  cmpwi CARG2, 0x7ff
-      |   li TMP1, 0x801
-      |  iseleq CARG2, TMP1, CARG2
-      |  bl extern lj_tab_new  // (lua_State *L, int32_t asize, uint32_t hbits)
-      |  // Returns Table *.
-    } else {
-      |  srwi TMP1, RD, 1
-      |  subfic TMP1, TMP1, -4
-      |  lwzx CARG2, KBASE, TMP1		// KBASE-4-tab_const*4
-      |  bl extern lj_tab_dup  // (lua_State *L, Table *kt)
-      |  // Returns Table *.
-    }
-    |  lwz BASE, L->base
-    |  evmergelo TAB:CRET1, TISTAB, TAB:CRET1
-    |  evstddx TAB:CRET1, BASE, RA
-    |  ins_next
-    |5:
-    |  mr SAVE0, RD
-    |  bl extern lj_gc_step_fixtop  // (lua_State *L)
-    |  mr RD, SAVE0
-    |  mr CARG1, L
-    |  b <1
-    break;
-
-  case BC_GGET:
-    |  // RA = dst*8, RD = str_const*8 (~)
-  case BC_GSET:
-    |  // RA = src*8, RD = str_const*8 (~)
-    |  lwz LFUNC:TMP2, FRAME_FUNC(BASE)
-    |   srwi TMP1, RD, 1
-    |  lwz TAB:RB, LFUNC:TMP2->env
-    |   subfic TMP1, TMP1, -4
-    |   lwzx STR:RC, KBASE, TMP1	// KBASE-4-str_const*4
-    if (op == BC_GGET) {
-      |  b ->BC_TGETS_Z
-    } else {
-      |  b ->BC_TSETS_Z
-    }
-    break;
-
-  case BC_TGETV:
-    |  // RA = dst*8, RB = table*8, RC = key*8
-    |  evlddx TAB:RB, BASE, RB
-    |   evlddx RC, BASE, RC
-    |  checktab TAB:RB
-    |  checkfail ->vmeta_tgetv
-    |  checknum RC
-    |  checkfail >5
-    |  // Convert number key to integer
-    |  efdctsi TMP2, RC
-    |   lwz TMP0, TAB:RB->asize
-    |  efdcfsi TMP1, TMP2
-    |   cmplw cr0, TMP0, TMP2
-    |  efdcmpeq cr1, RC, TMP1
-    |   lwz TMP1, TAB:RB->array
-    |  crand 4*cr0+gt, 4*cr0+gt, 4*cr1+gt
-    |   slwi TMP2, TMP2, 3
-    |  ble ->vmeta_tgetv		// Integer key and in array part?
-    |  evlddx TMP1, TMP1, TMP2
-    |  checknil TMP1
-    |  checkok >2
-    |1:
-    |  evstddx TMP1, BASE, RA
-    |  ins_next
-    |
-    |2:  // Check for __index if table value is nil.
-    |  lwz TAB:TMP2, TAB:RB->metatable
-    |  cmplwi TAB:TMP2, 0
-    |  beq <1				// No metatable: done.
-    |  lbz TMP0, TAB:TMP2->nomm
-    |  andi. TMP0, TMP0, 1<<MM_index
-    |  bne <1				// 'no __index' flag set: done.
-    |  b ->vmeta_tgetv
-    |
-    |5:
-    |  checkstr STR:RC			// String key?
-    |  checkok ->BC_TGETS_Z
-    |  b ->vmeta_tgetv
-    break;
-  case BC_TGETS:
-    |  // RA = dst*8, RB = table*8, RC = str_const*8 (~)
-    |  evlddx TAB:RB, BASE, RB
-    |   srwi TMP1, RC, 1
-    |  checktab TAB:RB
-    |   subfic TMP1, TMP1, -4
-    |   lwzx STR:RC, KBASE, TMP1	// KBASE-4-str_const*4
-    |  checkfail ->vmeta_tgets1
-    |->BC_TGETS_Z:
-    |  // TAB:RB = GCtab *, STR:RC = GCstr *, RA = dst*8
-    |  lwz TMP0, TAB:RB->hmask
-    |  lwz TMP1, STR:RC->hash
-    |  lwz NODE:TMP2, TAB:RB->node
-    |   evmergelo STR:RC, TISSTR, STR:RC
-    |  and TMP1, TMP1, TMP0		// idx = str->hash & tab->hmask
-    |  slwi TMP0, TMP1, 5
-    |  slwi TMP1, TMP1, 3
-    |  sub TMP1, TMP0, TMP1
-    |  add NODE:TMP2, NODE:TMP2, TMP1	// node = tab->node + (idx*32-idx*8)
-    |1:
-    |  evldd TMP0, NODE:TMP2->key
-    |   evldd TMP1, NODE:TMP2->val
-    |  evcmpeq TMP0, STR:RC
-    |  checkanyfail >4
-    |   checknil TMP1
-    |   checkok >5			// Key found, but nil value?
-    |3:
-    |   evstddx TMP1, BASE, RA
-    |  ins_next
-    |
-    |4:  // Follow hash chain.
-    |  lwz NODE:TMP2, NODE:TMP2->next
-    |  cmplwi NODE:TMP2, 0
-    |  bne <1
-    |  // End of hash chain: key not found, nil result.
-    |   evmr TMP1, TISNIL
-    |
-    |5:  // Check for __index if table value is nil.
-    |  lwz TAB:TMP2, TAB:RB->metatable
-    |  cmplwi TAB:TMP2, 0
-    |  beq <3				// No metatable: done.
-    |  lbz TMP0, TAB:TMP2->nomm
-    |  andi. TMP0, TMP0, 1<<MM_index
-    |  bne <3				// 'no __index' flag set: done.
-    |  b ->vmeta_tgets
-    break;
-  case BC_TGETB:
-    |  // RA = dst*8, RB = table*8, RC = index*8
-    |  evlddx TAB:RB, BASE, RB
-    |   srwi TMP0, RC, 3
-    |  checktab TAB:RB
-    |  checkfail ->vmeta_tgetb
-    |  lwz TMP1, TAB:RB->asize
-    |   lwz TMP2, TAB:RB->array
-    |  cmplw TMP0, TMP1
-    |  bge ->vmeta_tgetb
-    |  evlddx TMP1, TMP2, RC
-    |  checknil TMP1
-    |  checkok >5
-    |1:
-    |  ins_next1
-    |  evstddx TMP1, BASE, RA
-    |  ins_next2
-    |
-    |5:  // Check for __index if table value is nil.
-    |  lwz TAB:TMP2, TAB:RB->metatable
-    |  cmplwi TAB:TMP2, 0
-    |  beq <1				// No metatable: done.
-    |  lbz TMP2, TAB:TMP2->nomm
-    |  andi. TMP2, TMP2, 1<<MM_index
-    |  bne <1				// 'no __index' flag set: done.
-    |  b ->vmeta_tgetb			// Caveat: preserve TMP0!
-    break;
-
-  case BC_TSETV:
-    |  // RA = src*8, RB = table*8, RC = key*8
-    |  evlddx TAB:RB, BASE, RB
-    |   evlddx RC, BASE, RC
-    |  checktab TAB:RB
-    |  checkfail ->vmeta_tsetv
-    |  checknum RC
-    |  checkfail >5
-    |  // Convert number key to integer
-    |  efdctsi TMP2, RC
-    |    evlddx SAVE0, BASE, RA
-    |   lwz TMP0, TAB:RB->asize
-    |  efdcfsi TMP1, TMP2
-    |   cmplw cr0, TMP0, TMP2
-    |  efdcmpeq cr1, RC, TMP1
-    |   lwz TMP1, TAB:RB->array
-    |  crand 4*cr0+gt, 4*cr0+gt, 4*cr1+gt
-    |   slwi TMP0, TMP2, 3
-    |  ble ->vmeta_tsetv		// Integer key and in array part?
-    |   lbz TMP3, TAB:RB->marked
-    |  evlddx TMP2, TMP1, TMP0
-    |  checknil TMP2
-    |  checkok >3
-    |1:
-    |  andi. TMP2, TMP3, LJ_GC_BLACK	// isblack(table)
-    |   evstddx SAVE0, TMP1, TMP0
-    |  bne >7
-    |2:
-    |  ins_next
-    |
-    |3:  // Check for __newindex if previous value is nil.
-    |  lwz TAB:TMP2, TAB:RB->metatable
-    |  cmplwi TAB:TMP2, 0
-    |  beq <1				// No metatable: done.
-    |  lbz TMP2, TAB:TMP2->nomm
-    |  andi. TMP2, TMP2, 1<<MM_newindex
-    |  bne <1				// 'no __newindex' flag set: done.
-    |  b ->vmeta_tsetv
-    |
-    |5:
-    |  checkstr STR:RC			// String key?
-    |  checkok ->BC_TSETS_Z
-    |  b ->vmeta_tsetv
-    |
-    |7:  // Possible table write barrier for the value. Skip valiswhite check.
-    |  barrierback TAB:RB, TMP3, TMP0
-    |  b <2
-    break;
-  case BC_TSETS:
-    |  // RA = src*8, RB = table*8, RC = str_const*8 (~)
-    |  evlddx TAB:RB, BASE, RB
-    |   srwi TMP1, RC, 1
-    |  checktab TAB:RB
-    |   subfic TMP1, TMP1, -4
-    |   lwzx STR:RC, KBASE, TMP1	// KBASE-4-str_const*4
-    |  checkfail ->vmeta_tsets1
-    |->BC_TSETS_Z:
-    |  // TAB:RB = GCtab *, STR:RC = GCstr *, RA = src*8
-    |  lwz TMP0, TAB:RB->hmask
-    |  lwz TMP1, STR:RC->hash
-    |  lwz NODE:TMP2, TAB:RB->node
-    |   evmergelo STR:RC, TISSTR, STR:RC
-    |    stb ZERO, TAB:RB->nomm		// Clear metamethod cache.
-    |  and TMP1, TMP1, TMP0		// idx = str->hash & tab->hmask
-    |    evlddx SAVE0, BASE, RA
-    |  slwi TMP0, TMP1, 5
-    |  slwi TMP1, TMP1, 3
-    |  sub TMP1, TMP0, TMP1
-    |    lbz TMP3, TAB:RB->marked
-    |  add NODE:TMP2, NODE:TMP2, TMP1	// node = tab->node + (idx*32-idx*8)
-    |1:
-    |  evldd TMP0, NODE:TMP2->key
-    |   evldd TMP1, NODE:TMP2->val
-    |  evcmpeq TMP0, STR:RC
-    |  checkanyfail >5
-    |   checknil TMP1
-    |   checkok >4			// Key found, but nil value?
-    |2:
-    |  andi. TMP0, TMP3, LJ_GC_BLACK	// isblack(table)
-    |    evstdd SAVE0, NODE:TMP2->val
-    |  bne >7
-    |3:
-    |  ins_next
-    |
-    |4:  // Check for __newindex if previous value is nil.
-    |  lwz TAB:TMP1, TAB:RB->metatable
-    |  cmplwi TAB:TMP1, 0
-    |  beq <2				// No metatable: done.
-    |  lbz TMP0, TAB:TMP1->nomm
-    |  andi. TMP0, TMP0, 1<<MM_newindex
-    |  bne <2				// 'no __newindex' flag set: done.
-    |  b ->vmeta_tsets
-    |
-    |5:  // Follow hash chain.
-    |  lwz NODE:TMP2, NODE:TMP2->next
-    |  cmplwi NODE:TMP2, 0
-    |  bne <1
-    |  // End of hash chain: key not found, add a new one.
-    |
-    |  // But check for __newindex first.
-    |  lwz TAB:TMP1, TAB:RB->metatable
-    |   la CARG3, DISPATCH_GL(tmptv)(DISPATCH)
-    |   stw PC, SAVE_PC
-    |   mr CARG1, L
-    |  cmplwi TAB:TMP1, 0
-    |   stw BASE, L->base
-    |  beq >6				// No metatable: continue.
-    |  lbz TMP0, TAB:TMP1->nomm
-    |  andi. TMP0, TMP0, 1<<MM_newindex
-    |  beq ->vmeta_tsets		// 'no __newindex' flag NOT set: check.
-    |6:
-    |  mr CARG2, TAB:RB
-    |  evstdd STR:RC, 0(CARG3)
-    |  bl extern lj_tab_newkey		// (lua_State *L, GCtab *t, TValue *k)
-    |  // Returns TValue *.
-    |  lwz BASE, L->base
-    |  evstdd SAVE0, 0(CRET1)
-    |  b <3				// No 2nd write barrier needed.
-    |
-    |7:  // Possible table write barrier for the value. Skip valiswhite check.
-    |  barrierback TAB:RB, TMP3, TMP0
-    |  b <3
-    break;
-  case BC_TSETB:
-    |  // RA = src*8, RB = table*8, RC = index*8
-    |  evlddx TAB:RB, BASE, RB
-    |   srwi TMP0, RC, 3
-    |  checktab TAB:RB
-    |  checkfail ->vmeta_tsetb
-    |  lwz TMP1, TAB:RB->asize
-    |   lwz TMP2, TAB:RB->array
-    |    lbz TMP3, TAB:RB->marked
-    |  cmplw TMP0, TMP1
-    |   evlddx SAVE0, BASE, RA
-    |  bge ->vmeta_tsetb
-    |  evlddx TMP1, TMP2, RC
-    |  checknil TMP1
-    |  checkok >5
-    |1:
-    |  andi. TMP0, TMP3, LJ_GC_BLACK	// isblack(table)
-    |   evstddx SAVE0, TMP2, RC
-    |  bne >7
-    |2:
-    |  ins_next
-    |
-    |5:  // Check for __newindex if previous value is nil.
-    |  lwz TAB:TMP1, TAB:RB->metatable
-    |  cmplwi TAB:TMP1, 0
-    |  beq <1				// No metatable: done.
-    |  lbz TMP1, TAB:TMP1->nomm
-    |  andi. TMP1, TMP1, 1<<MM_newindex
-    |  bne <1				// 'no __newindex' flag set: done.
-    |  b ->vmeta_tsetb			// Caveat: preserve TMP0!
-    |
-    |7:  // Possible table write barrier for the value. Skip valiswhite check.
-    |  barrierback TAB:RB, TMP3, TMP0
-    |  b <2
-    break;
-
-  case BC_TSETM:
-    |  // RA = base*8 (table at base-1), RD = num_const*8 (start index)
-    |  add RA, BASE, RA
-    |1:
-    |   add TMP3, KBASE, RD
-    |  lwz TAB:CARG2, -4(RA)		// Guaranteed to be a table.
-    |    addic. TMP0, MULTRES, -8
-    |   lwz TMP3, 4(TMP3)		// Integer constant is in lo-word.
-    |    srwi CARG3, TMP0, 3
-    |    beq >4				// Nothing to copy?
-    |  add CARG3, CARG3, TMP3
-    |  lwz TMP2, TAB:CARG2->asize
-    |   slwi TMP1, TMP3, 3
-    |    lbz TMP3, TAB:CARG2->marked
-    |  cmplw CARG3, TMP2
-    |   add TMP2, RA, TMP0
-    |   lwz TMP0, TAB:CARG2->array
-    |  bgt >5
-    |   add TMP1, TMP1, TMP0
-    |    andi. TMP0, TMP3, LJ_GC_BLACK	// isblack(table)
-    |3:  // Copy result slots to table.
-    |   evldd TMP0, 0(RA)
-    |  addi RA, RA, 8
-    |  cmpw cr1, RA, TMP2
-    |   evstdd TMP0, 0(TMP1)
-    |    addi TMP1, TMP1, 8
-    |  blt cr1, <3
-    |  bne >7
-    |4:
-    |  ins_next
-    |
-    |5:  // Need to resize array part.
-    |   stw BASE, L->base
-    |  mr CARG1, L
-    |   stw PC, SAVE_PC
-    |  mr SAVE0, RD
-    |  bl extern lj_tab_reasize		// (lua_State *L, GCtab *t, int nasize)
-    |  // Must not reallocate the stack.
-    |  mr RD, SAVE0
-    |  b <1
-    |
-    |7:  // Possible table write barrier for any value. Skip valiswhite check.
-    |  barrierback TAB:CARG2, TMP3, TMP0
-    |  b <4
-    break;
-
-  /* -- Calls and vararg handling ----------------------------------------- */
-
-  case BC_CALLM:
-    |  // RA = base*8, (RB = (nresults+1)*8,) RC = extra_nargs*8
-    |  add NARGS8:RC, NARGS8:RC, MULTRES
-    |  // Fall through. Assumes BC_CALL follows.
-    break;
-  case BC_CALL:
-    |  // RA = base*8, (RB = (nresults+1)*8,) RC = (nargs+1)*8
-    |  evlddx LFUNC:RB, BASE, RA
-    |   mr TMP2, BASE
-    |   add BASE, BASE, RA
-    |    subi NARGS8:RC, NARGS8:RC, 8
-    |  checkfunc LFUNC:RB
-    |   addi BASE, BASE, 8
-    |  checkfail ->vmeta_call
-    |  ins_call
-    break;
-
-  case BC_CALLMT:
-    |  // RA = base*8, (RB = 0,) RC = extra_nargs*8
-    |  add NARGS8:RC, NARGS8:RC, MULTRES
-    |  // Fall through. Assumes BC_CALLT follows.
-    break;
-  case BC_CALLT:
-    |  // RA = base*8, (RB = 0,) RC = (nargs+1)*8
-    |  evlddx LFUNC:RB, BASE, RA
-    |   add RA, BASE, RA
-    |    lwz TMP1, FRAME_PC(BASE)
-    |    subi NARGS8:RC, NARGS8:RC, 8
-    |  checkfunc LFUNC:RB
-    |   addi RA, RA, 8
-    |  checkfail ->vmeta_callt
-    |->BC_CALLT_Z:
-    |  andi. TMP0, TMP1, FRAME_TYPE	// Caveat: preserve cr0 until the crand.
-    |   lbz TMP3, LFUNC:RB->ffid
-    |    xori TMP2, TMP1, FRAME_VARG
-    |    cmplwi cr1, NARGS8:RC, 0
-    |  bne >7
-    |1:
-    |  stw LFUNC:RB, FRAME_FUNC(BASE)	// Copy function down, but keep PC.
-    |  li TMP2, 0
-    |   cmplwi cr7, TMP3, 1		// (> FF_C) Calling a fast function?
-    |    beq cr1, >3
-    |2:
-    |  addi TMP3, TMP2, 8
-    |   evlddx TMP0, RA, TMP2
-    |  cmplw cr1, TMP3, NARGS8:RC
-    |   evstddx TMP0, BASE, TMP2
-    |  mr TMP2, TMP3
-    |  bne cr1, <2
-    |3:
-    |  crand 4*cr0+eq, 4*cr0+eq, 4*cr7+gt
-    |  beq >5
-    |4:
-    |  ins_callt
-    |
-    |5:  // Tailcall to a fast function with a Lua frame below.
-    |  lwz INS, -4(TMP1)
-    |  decode_RA8 RA, INS
-    |  sub TMP1, BASE, RA
-    |  lwz LFUNC:TMP1, FRAME_FUNC-8(TMP1)
-    |  lwz TMP1, LFUNC:TMP1->pc
-    |  lwz KBASE, PC2PROTO(k)(TMP1)	// Need to prepare KBASE.
-    |  b <4
-    |
-    |7:  // Tailcall from a vararg function.
-    |  andi. TMP0, TMP2, FRAME_TYPEP
-    |  bne <1				// Vararg frame below?
-    |  sub BASE, BASE, TMP2		// Relocate BASE down.
-    |  lwz TMP1, FRAME_PC(BASE)
-    |  andi. TMP0, TMP1, FRAME_TYPE
-    |  b <1
-    break;
-
-  case BC_ITERC:
-    |  // RA = base*8, (RB = (nresults+1)*8, RC = (nargs+1)*8 ((2+1)*8))
-    |  subi RA, RA, 24			// evldd doesn't support neg. offsets.
-    |   mr TMP2, BASE
-    |  evlddx LFUNC:RB, BASE, RA
-    |   add BASE, BASE, RA
-    |   evldd TMP0, 8(BASE)
-    |    evldd TMP1, 16(BASE)
-    |  evstdd LFUNC:RB, 24(BASE)	// Copy callable.
-    |  checkfunc LFUNC:RB
-    |   evstdd TMP0, 32(BASE)		// Copy state.
-    |     li NARGS8:RC, 16		// Iterators get 2 arguments.
-    |    evstdd TMP1, 40(BASE)		// Copy control var.
-    |     addi BASE, BASE, 32
-    |  checkfail ->vmeta_call
-    |  ins_call
-    break;
-
-  case BC_ITERN:
-    |  // RA = base*8, (RB = (nresults+1)*8, RC = (nargs+1)*8 (2+1)*8)
-    |.if JIT
-    |  // NYI: add hotloop, record BC_ITERN.
-    |.endif
-    |  add RA, BASE, RA
-    |  lwz TAB:RB, -12(RA)
-    |  lwz RC, -4(RA)			// Get index from control var.
-    |  lwz TMP0, TAB:RB->asize
-    |  lwz TMP1, TAB:RB->array
-    |   addi PC, PC, 4
-    |1:  // Traverse array part.
-    |  cmplw RC, TMP0
-    |   slwi TMP3, RC, 3
-    |  bge >5				// Index points after array part?
-    |  evlddx TMP2, TMP1, TMP3
-    |  checknil TMP2
-    |     lwz INS, -4(PC)
-    |  checkok >4
-    |   efdcfsi TMP0, RC
-    |    addi RC, RC, 1
-    |     addis TMP3, PC, -(BCBIAS_J*4 >> 16)
-    |  evstdd TMP2, 8(RA)
-    |     decode_RD4 TMP1, INS
-    |    stw RC, -4(RA)			// Update control var.
-    |     add PC, TMP1, TMP3
-    |   evstdd TMP0, 0(RA)
-    |3:
-    |  ins_next
-    |
-    |4:  // Skip holes in array part.
-    |  addi RC, RC, 1
-    |  b <1
-    |
-    |5:  // Traverse hash part.
-    |  lwz TMP1, TAB:RB->hmask
-    |  sub RC, RC, TMP0
-    |   lwz TMP2, TAB:RB->node
-    |6:
-    |  cmplw RC, TMP1			// End of iteration? Branch to ITERL+1.
-    |   slwi TMP3, RC, 5
-    |  bgt <3
-    |   slwi RB, RC, 3
-    |   sub TMP3, TMP3, RB
-    |  evlddx RB, TMP2, TMP3
-    |   add NODE:TMP3, TMP2, TMP3
-    |  checknil RB
-    |     lwz INS, -4(PC)
-    |  checkok >7
-    |   evldd TMP3, NODE:TMP3->key
-    |     addis TMP2, PC, -(BCBIAS_J*4 >> 16)
-    |  evstdd RB, 8(RA)
-    |    add RC, RC, TMP0
-    |     decode_RD4 TMP1, INS
-    |   evstdd TMP3, 0(RA)
-    |    addi RC, RC, 1
-    |     add PC, TMP1, TMP2
-    |    stw RC, -4(RA)			// Update control var.
-    |  b <3
-    |
-    |7:  // Skip holes in hash part.
-    |  addi RC, RC, 1
-    |  b <6
-    break;
-
-  case BC_ISNEXT:
-    |  // RA = base*8, RD = target (points to ITERN)
-    |  add RA, BASE, RA
-    |   li TMP2, -24
-    |  evlddx CFUNC:TMP1, RA, TMP2
-    |   lwz TMP2, -16(RA)
-    |    lwz TMP3, -8(RA)
-    |  evmergehi TMP0, CFUNC:TMP1, CFUNC:TMP1
-    |   cmpwi cr0, TMP2, LJ_TTAB
-    |  cmpwi cr1, TMP0, LJ_TFUNC
-    |    cmpwi cr6, TMP3, LJ_TNIL
-    |  bne cr1, >5
-    |  lbz TMP1, CFUNC:TMP1->ffid
-    |   crand 4*cr0+eq, 4*cr0+eq, 4*cr6+eq
-    |  cmpwi cr7, TMP1, FF_next_N
-    |    srwi TMP0, RD, 1
-    |  crand 4*cr0+eq, 4*cr0+eq, 4*cr7+eq
-    |    add TMP3, PC, TMP0
-    |  bne cr0, >5
-    |  lus TMP1, 0xfffe
-    |  ori TMP1, TMP1, 0x7fff
-    |  stw ZERO, -4(RA)			// Initialize control var.
-    |  stw TMP1, -8(RA)
-    |    addis PC, TMP3, -(BCBIAS_J*4 >> 16)
-    |1:
-    |  ins_next
-    |5:  // Despecialize bytecode if any of the checks fail.
-    |  li TMP0, BC_JMP
-    |   li TMP1, BC_ITERC
-    |  stb TMP0, -1(PC)
-    |    addis PC, TMP3, -(BCBIAS_J*4 >> 16)
-    |   stb TMP1, 3(PC)
-    |  b <1
-    break;
-
-  case BC_VARG:
-    |  // RA = base*8, RB = (nresults+1)*8, RC = numparams*8
-    |  lwz TMP0, FRAME_PC(BASE)
-    |  add RC, BASE, RC
-    |   add RA, BASE, RA
-    |  addi RC, RC, FRAME_VARG
-    |   add TMP2, RA, RB
-    |  subi TMP3, BASE, 8		// TMP3 = vtop
-    |  sub RC, RC, TMP0			// RC = vbase
-    |  // Note: RC may now be even _above_ BASE if nargs was < numparams.
-    |  cmplwi cr1, RB, 0
-    |   sub. TMP1, TMP3, RC
-    |  beq cr1, >5			// Copy all varargs?
-    |   subi TMP2, TMP2, 16
-    |   ble >2				// No vararg slots?
-    |1:  // Copy vararg slots to destination slots.
-    |  evldd TMP0, 0(RC)
-    |   addi RC, RC, 8
-    |  evstdd TMP0, 0(RA)
-    |  cmplw RA, TMP2
-    |   cmplw cr1, RC, TMP3
-    |  bge >3				// All destination slots filled?
-    |    addi RA, RA, 8
-    |   blt cr1, <1			// More vararg slots?
-    |2:  // Fill up remainder with nil.
-    |  evstdd TISNIL, 0(RA)
-    |  cmplw RA, TMP2
-    |   addi RA, RA, 8
-    |  blt <2
-    |3:
-    |  ins_next
-    |
-    |5:  // Copy all varargs.
-    |  lwz TMP0, L->maxstack
-    |   li MULTRES, 8			// MULTRES = (0+1)*8
-    |  ble <3				// No vararg slots?
-    |  add TMP2, RA, TMP1
-    |  cmplw TMP2, TMP0
-    |   addi MULTRES, TMP1, 8
-    |  bgt >7
-    |6:
-    |  evldd TMP0, 0(RC)
-    |   addi RC, RC, 8
-    |  evstdd TMP0, 0(RA)
-    |  cmplw RC, TMP3
-    |   addi RA, RA, 8
-    |  blt <6				// More vararg slots?
-    |  b <3
-    |
-    |7:  // Grow stack for varargs.
-    |  mr CARG1, L
-    |   stw RA, L->top
-    |  sub SAVE0, RC, BASE		// Need delta, because BASE may change.
-    |   stw BASE, L->base
-    |  sub RA, RA, BASE
-    |   stw PC, SAVE_PC
-    |  srwi CARG2, TMP1, 3
-    |  bl extern lj_state_growstack	// (lua_State *L, int n)
-    |  lwz BASE, L->base
-    |  add RA, BASE, RA
-    |  add RC, BASE, SAVE0
-    |  subi TMP3, BASE, 8
-    |  b <6
-    break;
-
-  /* -- Returns ----------------------------------------------------------- */
-
-  case BC_RETM:
-    |  // RA = results*8, RD = extra_nresults*8
-    |  add RD, RD, MULTRES		// MULTRES >= 8, so RD >= 8.
-    |  // Fall through. Assumes BC_RET follows.
-    break;
-
-  case BC_RET:
-    |  // RA = results*8, RD = (nresults+1)*8
-    |  lwz PC, FRAME_PC(BASE)
-    |   add RA, BASE, RA
-    |    mr MULTRES, RD
-    |1:
-    |  andi. TMP0, PC, FRAME_TYPE
-    |   xori TMP1, PC, FRAME_VARG
-    |  bne ->BC_RETV_Z
-    |
-    |->BC_RET_Z:
-    |  // BASE = base, RA = resultptr, RD = (nresults+1)*8, PC = return
-    |   lwz INS, -4(PC)
-    |  cmpwi RD, 8
-    |   subi TMP2, BASE, 8
-    |   subi RC, RD, 8
-    |   decode_RB8 RB, INS
-    |  beq >3
-    |   li TMP1, 0
-    |2:
-    |  addi TMP3, TMP1, 8
-    |   evlddx TMP0, RA, TMP1
-    |  cmpw TMP3, RC
-    |   evstddx TMP0, TMP2, TMP1
-    |  beq >3
-    |  addi TMP1, TMP3, 8
-    |   evlddx TMP0, RA, TMP3
-    |  cmpw TMP1, RC
-    |   evstddx TMP0, TMP2, TMP3
-    |  bne <2
-    |3:
-    |5:
-    |  cmplw RB, RD
-    |   decode_RA8 RA, INS
-    |  bgt >6
-    |   sub BASE, TMP2, RA
-    |  lwz LFUNC:TMP1, FRAME_FUNC(BASE)
-    |  ins_next1
-    |  lwz TMP1, LFUNC:TMP1->pc
-    |  lwz KBASE, PC2PROTO(k)(TMP1)
-    |  ins_next2
-    |
-    |6:  // Fill up results with nil.
-    |  subi TMP1, RD, 8
-    |   addi RD, RD, 8
-    |  evstddx TISNIL, TMP2, TMP1
-    |  b <5
-    |
-    |->BC_RETV_Z:  // Non-standard return case.
-    |  andi. TMP2, TMP1, FRAME_TYPEP
-    |  bne ->vm_return
-    |  // Return from vararg function: relocate BASE down.
-    |  sub BASE, BASE, TMP1
-    |  lwz PC, FRAME_PC(BASE)
-    |  b <1
-    break;
-
-  case BC_RET0: case BC_RET1:
-    |  // RA = results*8, RD = (nresults+1)*8
-    |  lwz PC, FRAME_PC(BASE)
-    |   add RA, BASE, RA
-    |    mr MULTRES, RD
-    |  andi. TMP0, PC, FRAME_TYPE
-    |   xori TMP1, PC, FRAME_VARG
-    |  bne ->BC_RETV_Z
-    |
-    |  lwz INS, -4(PC)
-    |   subi TMP2, BASE, 8
-    |  decode_RB8 RB, INS
-    if (op == BC_RET1) {
-      |  evldd TMP0, 0(RA)
-      |  evstdd TMP0, 0(TMP2)
-    }
-    |5:
-    |  cmplw RB, RD
-    |   decode_RA8 RA, INS
-    |  bgt >6
-    |   sub BASE, TMP2, RA
-    |  lwz LFUNC:TMP1, FRAME_FUNC(BASE)
-    |  ins_next1
-    |  lwz TMP1, LFUNC:TMP1->pc
-    |  lwz KBASE, PC2PROTO(k)(TMP1)
-    |  ins_next2
-    |
-    |6:  // Fill up results with nil.
-    |  subi TMP1, RD, 8
-    |   addi RD, RD, 8
-    |  evstddx TISNIL, TMP2, TMP1
-    |  b <5
-    break;
-
-  /* -- Loops and branches ------------------------------------------------ */
-
-  case BC_FORL:
-    |.if JIT
-    |  hotloop
-    |.endif
-    |  // Fall through. Assumes BC_IFORL follows.
-    break;
-
-  case BC_JFORI:
-  case BC_JFORL:
-#if !LJ_HASJIT
-    break;
-#endif
-  case BC_FORI:
-  case BC_IFORL:
-    |  // RA = base*8, RD = target (after end of loop or start of loop)
-    vk = (op == BC_IFORL || op == BC_JFORL);
-    |  add RA, BASE, RA
-    |  evldd TMP1, FORL_IDX*8(RA)
-    |  evldd TMP3, FORL_STEP*8(RA)
-    |  evldd TMP2, FORL_STOP*8(RA)
-    if (!vk) {
-      |  evcmpgtu cr0, TMP1, TISNUM
-      |  evcmpgtu cr7, TMP3, TISNUM
-      |  evcmpgtu cr1, TMP2, TISNUM
-      |  cror 4*cr0+lt, 4*cr0+lt, 4*cr7+lt
-      |  cror 4*cr0+lt, 4*cr0+lt, 4*cr1+lt
-      |  blt ->vmeta_for
-    }
-    if (vk) {
-      |  efdadd TMP1, TMP1, TMP3
-      |  evstdd TMP1, FORL_IDX*8(RA)
-    }
-    |   evcmpgts TMP3, TISNIL
-    |  evstdd TMP1, FORL_EXT*8(RA)
-    |   bge >2
-    |  efdcmpgt TMP1, TMP2
-    |1:
-    if (op != BC_JFORL) {
-      |  srwi RD, RD, 1
-      |  add RD, PC, RD
-      if (op == BC_JFORI) {
-	|  addis PC, RD, -(BCBIAS_J*4 >> 16)
-      } else {
-	|  addis RD, RD, -(BCBIAS_J*4 >> 16)
-      }
-    }
-    if (op == BC_FORI) {
-      |  iselgt PC, RD, PC
-    } else if (op == BC_IFORL) {
-      |  iselgt PC, PC, RD
-    } else {
-      |  ble =>BC_JLOOP
-    }
-    |  ins_next
-    |2:
-    |  efdcmpgt TMP2, TMP1
-    |  b <1
-    break;
-
-  case BC_ITERL:
-    |.if JIT
-    |  hotloop
-    |.endif
-    |  // Fall through. Assumes BC_IITERL follows.
-    break;
-
-  case BC_JITERL:
-#if !LJ_HASJIT
-    break;
-#endif
-  case BC_IITERL:
-    |  // RA = base*8, RD = target
-    |  evlddx TMP1, BASE, RA
-    |   subi RA, RA, 8
-    |  checknil TMP1
-    |  checkok >1			// Stop if iterator returned nil.
-    if (op == BC_JITERL) {
-      |  NYI
-    } else {
-      |  branch_RD			// Otherwise save control var + branch.
-      |  evstddx TMP1, BASE, RA
-    }
-    |1:
-    |  ins_next
-    break;
-
-  case BC_LOOP:
-    |  // RA = base*8, RD = target (loop extent)
-    |  // Note: RA/RD is only used by trace recorder to determine scope/extent
-    |  // This opcode does NOT jump, it's only purpose is to detect a hot loop.
-    |.if JIT
-    |  hotloop
-    |.endif
-    |  // Fall through. Assumes BC_ILOOP follows.
-    break;
-
-  case BC_ILOOP:
-    |  // RA = base*8, RD = target (loop extent)
-    |  ins_next
-    break;
-
-  case BC_JLOOP:
-    |.if JIT
-    |  NYI
-    |.endif
-    break;
-
-  case BC_JMP:
-    |  // RA = base*8 (only used by trace recorder), RD = target
-    |  branch_RD
-    |  ins_next
-    break;
-
-  /* -- Function headers -------------------------------------------------- */
-
-  case BC_FUNCF:
-    |.if JIT
-    |  hotcall
-    |.endif
-  case BC_FUNCV:  /* NYI: compiled vararg functions. */
-    |  // Fall through. Assumes BC_IFUNCF/BC_IFUNCV follow.
-    break;
-
-  case BC_JFUNCF:
-#if !LJ_HASJIT
-    break;
-#endif
-  case BC_IFUNCF:
-    |  // BASE = new base, RA = BASE+framesize*8, RB = LFUNC, RC = nargs*8
-    |  lwz TMP2, L->maxstack
-    |   lbz TMP1, -4+PC2PROTO(numparams)(PC)
-    |    lwz KBASE, -4+PC2PROTO(k)(PC)
-    |  cmplw RA, TMP2
-    |   slwi TMP1, TMP1, 3
-    |  bgt ->vm_growstack_l
-    |  ins_next1
-    |2:
-    |  cmplw NARGS8:RC, TMP1		// Check for missing parameters.
-    |  ble >3
-    if (op == BC_JFUNCF) {
-      |  NYI
-    } else {
-      |  ins_next2
-    }
-    |
-    |3:  // Clear missing parameters.
-    |  evstddx TISNIL, BASE, NARGS8:RC
-    |  addi NARGS8:RC, NARGS8:RC, 8
-    |  b <2
-    break;
-
-  case BC_JFUNCV:
-#if !LJ_HASJIT
-    break;
-#endif
-    |  NYI  // NYI: compiled vararg functions
-    break;  /* NYI: compiled vararg functions. */
-
-  case BC_IFUNCV:
-    |  // BASE = new base, RA = BASE+framesize*8, RB = LFUNC, RC = nargs*8
-    |  lwz TMP2, L->maxstack
-    |   add TMP1, BASE, RC
-    |  add TMP0, RA, RC
-    |   stw LFUNC:RB, 4(TMP1)		// Store copy of LFUNC.
-    |   addi TMP3, RC, 8+FRAME_VARG
-    |    lwz KBASE, -4+PC2PROTO(k)(PC)
-    |  cmplw TMP0, TMP2
-    |   stw TMP3, 0(TMP1)		// Store delta + FRAME_VARG.
-    |  bge ->vm_growstack_l
-    |  lbz TMP2, -4+PC2PROTO(numparams)(PC)
-    |   mr RA, BASE
-    |   mr RC, TMP1
-    |  ins_next1
-    |  cmpwi TMP2, 0
-    |   addi BASE, TMP1, 8
-    |  beq >3
-    |1:
-    |  cmplw RA, RC			// Less args than parameters?
-    |   evldd TMP0, 0(RA)
-    |  bge >4
-    |    evstdd TISNIL, 0(RA)		// Clear old fixarg slot (help the GC).
-    |    addi RA, RA, 8
-    |2:
-    |  addic. TMP2, TMP2, -1
-    |   evstdd TMP0, 8(TMP1)
-    |    addi TMP1, TMP1, 8
-    |  bne <1
-    |3:
-    |  ins_next2
-    |
-    |4:  // Clear missing parameters.
-    |  evmr TMP0, TISNIL
-    |  b <2
-    break;
-
-  case BC_FUNCC:
-  case BC_FUNCCW:
-    |  // BASE = new base, RA = BASE+framesize*8, RB = CFUNC, RC = nargs*8
-    if (op == BC_FUNCC) {
-      |  lwz TMP3, CFUNC:RB->f
-    } else {
-      |  lwz TMP3, DISPATCH_GL(wrapf)(DISPATCH)
-    }
-    |   add TMP1, RA, NARGS8:RC
-    |   lwz TMP2, L->maxstack
-    |    add RC, BASE, NARGS8:RC
-    |   stw BASE, L->base
-    |   cmplw TMP1, TMP2
-    |    stw RC, L->top
-    |     li_vmstate C
-    |  mtctr TMP3
-    if (op == BC_FUNCCW) {
-      |  lwz CARG2, CFUNC:RB->f
-    }
-    |  mr CARG1, L
-    |   bgt ->vm_growstack_c		// Need to grow stack.
-    |     st_vmstate
-    |  bctrl				// (lua_State *L [, lua_CFunction f])
-    |  // Returns nresults.
-    |  lwz TMP1, L->top
-    |   slwi RD, CRET1, 3
-    |  lwz BASE, L->base
-    |    li_vmstate INTERP
-    |  lwz PC, FRAME_PC(BASE)		// Fetch PC of caller.
-    |   sub RA, TMP1, RD		// RA = L->top - nresults*8
-    |    st_vmstate
-    |  b ->vm_returnc
-    break;
-
-  /* ---------------------------------------------------------------------- */
-
-  default:
-    fprintf(stderr, "Error: undefined opcode BC_%s\n", bc_names[op]);
-    exit(2);
-    break;
-  }
-}
-
-static int build_backend(BuildCtx *ctx)
-{
-  int op;
-
-  dasm_growpc(Dst, BC__MAX);
-
-  build_subroutines(ctx);
-
-  |.code_op
-  for (op = 0; op < BC__MAX; op++)
-    build_ins(ctx, (BCOp)op, op);
-
-  return BC__MAX;
-}
-
-/* Emit pseudo frame-info for all assembler functions. */
-static void emit_asm_debug(BuildCtx *ctx)
-{
-  int i;
-  switch (ctx->mode) {
-  case BUILD_elfasm:
-    fprintf(ctx->fp, "\t.section .debug_frame,\"\",@progbits\n");
-    fprintf(ctx->fp,
-	".Lframe0:\n"
-	"\t.long .LECIE0-.LSCIE0\n"
-	".LSCIE0:\n"
-	"\t.long 0xffffffff\n"
-	"\t.byte 0x1\n"
-	"\t.string \"\"\n"
-	"\t.uleb128 0x1\n"
-	"\t.sleb128 -4\n"
-	"\t.byte 65\n"
-	"\t.byte 0xc\n\t.uleb128 1\n\t.uleb128 0\n"
-	"\t.align 2\n"
-	".LECIE0:\n\n");
-    fprintf(ctx->fp,
-	".LSFDE0:\n"
-	"\t.long .LEFDE0-.LASFDE0\n"
-	".LASFDE0:\n"
-	"\t.long .Lframe0\n"
-	"\t.long .Lbegin\n"
-	"\t.long %d\n"
-	"\t.byte 0xe\n\t.uleb128 %d\n"
-	"\t.byte 0x11\n\t.uleb128 65\n\t.sleb128 -1\n"
-	"\t.byte 0x5\n\t.uleb128 70\n\t.sleb128 37\n",
-	(int)ctx->codesz, CFRAME_SIZE);
-    for (i = 14; i <= 31; i++)
-      fprintf(ctx->fp,
-	"\t.byte %d\n\t.uleb128 %d\n"
-	"\t.byte 5\n\t.uleb128 %d\n\t.uleb128 %d\n",
-	0x80+i, 1+2*(31-i), 1200+i, 2+2*(31-i));
-    fprintf(ctx->fp,
-	"\t.align 2\n"
-	".LEFDE0:\n\n");
-    fprintf(ctx->fp, "\t.section .eh_frame,\"a\",@progbits\n");
-    fprintf(ctx->fp,
-	".Lframe1:\n"
-	"\t.long .LECIE1-.LSCIE1\n"
-	".LSCIE1:\n"
-	"\t.long 0\n"
-	"\t.byte 0x1\n"
-	"\t.string \"zPR\"\n"
-	"\t.uleb128 0x1\n"
-	"\t.sleb128 -4\n"
-	"\t.byte 65\n"
-	"\t.uleb128 6\n"			/* augmentation length */
-	"\t.byte 0x1b\n"			/* pcrel|sdata4 */
-	"\t.long lj_err_unwind_dwarf-.\n"
-	"\t.byte 0x1b\n"			/* pcrel|sdata4 */
-	"\t.byte 0xc\n\t.uleb128 1\n\t.uleb128 0\n"
-	"\t.align 2\n"
-	".LECIE1:\n\n");
-    fprintf(ctx->fp,
-	".LSFDE1:\n"
-	"\t.long .LEFDE1-.LASFDE1\n"
-	".LASFDE1:\n"
-	"\t.long .LASFDE1-.Lframe1\n"
-	"\t.long .Lbegin-.\n"
-	"\t.long %d\n"
-	"\t.uleb128 0\n"			/* augmentation length */
-	"\t.byte 0xe\n\t.uleb128 %d\n"
-	"\t.byte 0x11\n\t.uleb128 65\n\t.sleb128 -1\n"
-	"\t.byte 0x5\n\t.uleb128 70\n\t.sleb128 37\n",
-	(int)ctx->codesz, CFRAME_SIZE);
-    for (i = 14; i <= 31; i++)
-      fprintf(ctx->fp,
-	"\t.byte %d\n\t.uleb128 %d\n"
-	"\t.byte 5\n\t.uleb128 %d\n\t.uleb128 %d\n",
-	0x80+i, 1+2*(31-i), 1200+i, 2+2*(31-i));
-    fprintf(ctx->fp,
-	"\t.align 2\n"
-	".LEFDE1:\n\n");
-    break;
-  default:
-    break;
-  }
-}
-