Added generic WCH32Vx RISC-V processor types using memory size suffixes

Modified low-level startup code for RISCV32 embedded microcontrollers to
allow user code override of reset handlers for non-power-up reset events
as well as enabling user code override handlers for all 255 possible
interrupt vectors.
Separated out the low-level startup memory init into a callable procedure
to allow users that have caught reset events to init memory again if needed.

Signed-off-by: Interferon <[email protected]>

compiler/riscv/agrvgas.pas

@@ -233,8 +233,8 @@ unit agrvgas;
       const
         arch_str: array[boolean,tcputype] of string[10] = (
 {$ifdef RISCV32}
-          ('','rv32imac','rv32ima','rv32im','rv32i','rv32e','rv32imc'),
-          ('','rv32imafdc','rv32imafd','rv32imfd','rv32ifd','rv32efd','rv32imcfd')
+          ('','rv32imac','rv32ima','rv32im','rv32i','rv32e','rv32imc','rv32ec'),
+          ('','rv32imafdc','rv32imafd','rv32imfd','rv32ifd','rv32efd','rv32imcfd','rv32ecfd')
 {$endif RISCV32}
 {$ifdef RISCV64}
           ('','rv64imac','rv64ima','rv64im','rv64i'),

compiler/riscv32/cpuinfo.pas

@@ -40,7 +40,8 @@ Type
        cpu_rv32im,
        cpu_rv32i,
        cpu_rv32e,
-       cpu_rv32imc
+       cpu_rv32imc,
+       cpu_rv32ec
       );
 
    tfputype =
@@ -81,7 +82,12 @@ Type
       ct_ch32v307rc,
       ct_ch32v307wc,
       ct_ch32V307vc,
-      ct_esp32c3
+      ct_esp32c3,
+      ct_CH32V0x,
+      ct_CH32Vxxxx6,
+      ct_CH32Vxxxx8,
+      ct_CH32VxxxxB,
+      ct_CH32VxxxxC
      );
 
    tcontrollerdatatype = record
@@ -133,7 +139,12 @@ Const
       (controllertypestr:'CH32V307RC'; controllerunitstr:'CH32V307';    cputype:cpu_rv32imac; fputype:fpu_fd; flashbase:$00000000; flashsize:$00040000; srambase:$20000000; sramsize:$00010000),
       (controllertypestr:'CH32V307WC'; controllerunitstr:'CH32V307';    cputype:cpu_rv32imac; fputype:fpu_fd; flashbase:$00000000; flashsize:$00040000; srambase:$20000000; sramsize:$00010000),
       (controllertypestr:'CH32V307VC'; controllerunitstr:'CH32V307';    cputype:cpu_rv32imac; fputype:fpu_fd; flashbase:$00000000; flashsize:$00040000; srambase:$20000000; sramsize:$00010000),
-      (controllertypestr:'ESP32C3'; controllerunitstr:'ESP32C3';    cputype:cpu_rv32imc; fputype:fpu_none; flashbase:$00000000; flashsize:4*1024*1024; srambase:$20000000; sramsize:400*1024)
+      (controllertypestr:'ESP32C3'; controllerunitstr:'ESP32C3';    cputype:cpu_rv32imc; fputype:fpu_none; flashbase:$00000000; flashsize:4*1024*1024; srambase:$20000000; sramsize:400*1024),
+      (controllertypestr:'CH32V0X' ; controllerunitstr:'CH32VxBootstrap';   cputype:cpu_rv32e; fputype:fpu_none; flashbase:$00000000; flashsize:$00004000; srambase:$20000000; sramsize:$00000800; eeprombase:0; eepromsize:0;BootBase:$1FFFF000; BootSize:1920),
+      (controllertypestr:'CH32VXXXX6' ; controllerunitstr:'CH32VxBootstrap';   cputype:cpu_rv32imac; fputype:fpu_none; flashbase:$00000000; flashsize:$00008000; srambase:$20000000; sramsize:$00002800),
+      (controllertypestr:'CH32VXXXX8' ; controllerunitstr:'CH32VxBootstrap';   cputype:cpu_rv32imac; fputype:fpu_none; flashbase:$00000000; flashsize:$00010000; srambase:$20000000; sramsize:$00008000),
+      (controllertypestr:'CH32VXXXXB' ; controllerunitstr:'CH32VxBootstrap';   cputype:cpu_rv32imac; fputype:fpu_none; flashbase:$00000000; flashsize:$00020000; srambase:$20000000; sramsize:$00010000),
+      (controllertypestr:'CH32VXXXXC' ; controllerunitstr:'CH32VxBootstrap';   cputype:cpu_rv32imac; fputype:fpu_none; flashbase:$00000000; flashsize:$00040000; srambase:$20000000; sramsize:$00020000)
    );
    {$POP}
 
@@ -156,7 +167,8 @@ Const
      'RV32IM',
      'RV32I',
      'RV32E',
-     'RV32IMC'
+     'RV32IMC',
+     'RV32EC'
    );
 
    fputypestr : array[tfputype] of string[8] = (         
@@ -197,7 +209,9 @@ Const
        { cpu_rv32im    } [CPURV_HAS_MUL],
        { cpu_rv32i     } [],
        { cpu_rv32e     } [CPURV_HAS_16REGISTERS],
-       { cpu_rv32imc   } [CPURV_HAS_MUL,CPURV_HAS_COMPACT]
+       { cpu_rv32imc   } [CPURV_HAS_MUL,CPURV_HAS_COMPACT],
+       { cpu_rv32ec    } [CPURV_HAS_16REGISTERS,CPURV_HAS_COMPACT]
+
      );
 
 Implementation

rtl/embedded/Makefile.fpc

@@ -223,6 +223,17 @@ endif
 endif
 
 ifeq ($(ARCH),riscv32)
+CPU_SPECIFIC_COMMON_UNITS=sysutils math classes fgl macpas typinfo types rtlconsts getopts lineinfo
+ifeq ($(SUBARCH),rv32ec)
+override FPCOPT+=-Cprv32ec
+CPU_UNITS=CH32VxBootstrap
+CPU_UNITS_DEFINED=1
+endif
+ifeq ($(SUBARCH),rv32e)
+override FPCOPT+=-Cprv32e
+CPU_UNITS=CH32VxBootstrap
+CPU_UNITS_DEFINED=1
+endif
 ifeq ($(SUBARCH),rv32imac)
 override FPCOPT+=-Cprv32imac
 CPU_UNITS=$(FE310G000UNIT) $(FE310G002UNIT) $(GD32VF103XXUNIT)
@@ -230,7 +241,7 @@ CPU_UNITS_DEFINED=1
 endif
 ifeq ($(SUBARCH),rv32i)
 override FPCOPT+=-Cprv32i
-CPU_UNITS=
+CPU_UNITS=CH32VxBootstrap
 CPU_UNITS_DEFINED=1
 endif
 ifeq ($(CPU_UNITS_DEFINED),)

rtl/embedded/riscv32/CH32VxBootstrap.pp

@@ -0,0 +1,1176 @@
+unit CH32VxBootstrap;
+
+interface
+
+{$PACKRECORDS 2}
+
+
+//override ISR vectors by declaring a procedure with a public alias of 'ISRx'
+const
+
+NMI_ISR='ISR2';
+HardFault_ISR='ISR3';
+Ecall_M_ISR='ISR5';
+Ecall_U_ISR='ISR8';
+BreakPoint_ISR='ISR9';
+SysTick_ISR='ISR12';
+SW_ISR='ISR14';
+WWDG_ISR='ISR16';
+PVD_ISR='ISR17';
+TAMPER_ISR='ISR18';
+RTC_ISR='ISR19';
+FLASH_ISR='ISR20';
+RCC_ISR='ISR21';
+EXTI0_ISR='ISR22';
+EXTI1_ISR='ISR23';
+EXTI2_ISR='ISR24';
+EXTI3_ISR='ISR25';
+EXTI4_ISR='ISR26';
+DMA1_CH1_ISR='ISR27';
+DMA1_CH2_ISR='ISR28';
+DMA1_CH3_ISR='ISR29';
+DMA1_CH4_ISR='ISR30';
+DMA1_CH5_ISR='ISR31';
+DMA1_CH6_ISR='ISR32';
+DMA1_CH7_ISR='ISR33';
+ADC1_2_ISR='ISR34';
+USB_HP_CAN1_TX_ISR='ISR35';
+USB_LP_CAN1_RX0_ISR='ISR36';
+CAN1_RX1_ISR='ISR37';
+CAN1_SCE_ISR='ISR38';
+EXTI9_5_ISR='ISR39';
+TIM1_BRK_ISR='ISR40';
+TIM1_UP_ISR='ISR41';
+TIM1_TRG_COM_ISR='ISR42';
+TIM1_CC_ISR='ISR43';
+TIM2_ISR='ISR44';
+TIM3_ISR='ISR45';
+TIM4_ISR='ISR46';
+I2C1_EV_ISR='ISR47';
+I2C1_ER_ISR='ISR48';
+I2C2_EV_ISR='ISR49';
+I2C2_ER_ISR='ISR50';
+SPI1_ISR='ISR51';
+SPI2_ISR='ISR52';
+USART1_ISR='ISR53';
+USART2_ISR='ISR54';
+USART3_ISR='ISR55';
+EXTI15_10_ISR='ISR56';
+RTCAlarm_ISR='ISR57';
+USBWakeUp_ISR='ISR58';
+TIM8_BRK_ISR='ISR59';
+TIM8_UP_ISR='ISR60';
+TIM8_TRG_COM_ISR='ISR61';
+TIM8_CC_ISR='ISR62';
+RNG_ISR='ISR63';
+FSMC_ISR='ISR64';
+SDIO_ISR='ISR65';
+TIM5_ISR='ISR66';
+SPI3_ISR='ISR67';
+UART4_ISR='ISR68';
+UART5_ISR='ISR69';
+TIM6_ISR='ISR70';
+TIM7_ISR='ISR71';
+DMA2_CH1_ISR='ISR72';
+DMA2_CH2_ISR='ISR73';
+DMA2_CH3_ISR='ISR74';
+DMA2_CH4_ISR='ISR75';
+DMA2_CH5_ISR='ISR76';
+ETH_ISR='ISR77';
+ETH_WKUP_ISR='ISR78';
+CAN2_TX_ISR='ISR79';
+CAN2_RX0_ISR='ISR80';
+CAN2_RX1_ISR='ISR81';
+CAN2_SCE_ISR='ISR82';
+OTG_FS_ISR='ISR83';
+USBHSWakeUp_ISR='ISR84';
+USBHS_ISR='ISR85';
+DVP_ISR='ISR86';
+UART6_ISR='ISR87';
+UART7_ISR='ISR88';
+UART8_ISR='ISR89';
+TIM9_BRK_ISR='ISR90';
+TIM9_UP_ISR='ISR91';
+TIM9_TRG_COM_ISR='ISR92';
+TIM9_CC_ISR='ISR93';
+TIM10_BRK_ISR='ISR94';
+TIM10_UP_ISR='ISR95';
+TIM10_TRG_COM_ISR='ISR96';
+TIM10_CC_ISR='ISR97';
+DMA2_CH6_ISR='ISR98';
+DMA2_CH7_ISR='ISR99';
+DMA2_CH8_ISR='ISR100';
+DMA2_CH9_ISR='ISR101';
+DMA2_CH10_ISR='ISR102';
+DMA2_CH11_ISR='ISR103';
+
+
+//used by user reset hook to init system from non-power up resets ( WDT, WakeFromSleep, etc.).
+procedure InitMemAndStart; noreturn;
+
+implementation
+
+const
+  RCC_RSTSCKR = $40021024;
+  PORRSTF = 1 shl 27;
+  RMVF = 1 shl 24;
+
+  //Defaults to InitMemAndStart, can be overriden by user
+procedure ResetISR; external Name 'ResetISR';
+
+procedure HandleArchSpecificReset; noreturn;
+begin
+  if (PLongWord(RCC_RSTSCKR)^ and PORRSTF) > 0 then
+  begin
+    PLongWord(RCC_RSTSCKR)^ := PLongWord(RCC_RSTSCKR)^ or RMVF; //clear reset flags;
+    // always init memory and system on power-on reset
+    InitMemAndStart;
+  end
+  else
+    ResetISR; //reset-events other than power-on
+end;
+
+  {$i riscv32_start.inc}
+
+procedure DefaultISRHandler; external Name 'DefaultISRHandler';
+
+
+procedure ISR1; external Name 'ISR1';
+procedure ISR2; external Name 'ISR2';
+procedure ISR3; external Name 'ISR3';
+procedure ISR4; external Name 'ISR4';
+procedure ISR5; external Name 'ISR5';
+procedure ISR6; external Name 'ISR6';
+procedure ISR7; external Name 'ISR7';
+procedure ISR8; external Name 'ISR8';
+procedure ISR9; external Name 'ISR9';
+procedure ISR10; external Name 'ISR10';
+procedure ISR11; external Name 'ISR11';
+procedure ISR12; external Name 'ISR12';
+procedure ISR13; external Name 'ISR13';
+procedure ISR14; external Name 'ISR14';
+procedure ISR15; external Name 'ISR15';
+procedure ISR16; external Name 'ISR16';
+procedure ISR17; external Name 'ISR17';
+procedure ISR18; external Name 'ISR18';
+procedure ISR19; external Name 'ISR19';
+procedure ISR20; external Name 'ISR20';
+procedure ISR21; external Name 'ISR21';
+procedure ISR22; external Name 'ISR22';
+procedure ISR23; external Name 'ISR23';
+procedure ISR24; external Name 'ISR24';
+procedure ISR25; external Name 'ISR25';
+procedure ISR26; external Name 'ISR26';
+procedure ISR27; external Name 'ISR27';
+procedure ISR28; external Name 'ISR28';
+procedure ISR29; external Name 'ISR29';
+procedure ISR30; external Name 'ISR30';
+procedure ISR31; external Name 'ISR31';
+procedure ISR32; external Name 'ISR32';
+procedure ISR33; external Name 'ISR33';
+procedure ISR34; external Name 'ISR34';
+procedure ISR35; external Name 'ISR35';
+procedure ISR36; external Name 'ISR36';
+procedure ISR37; external Name 'ISR37';
+procedure ISR38; external Name 'ISR38';
+procedure ISR39; external Name 'ISR39';
+procedure ISR40; external Name 'ISR40';
+procedure ISR41; external Name 'ISR41';
+procedure ISR42; external Name 'ISR42';
+procedure ISR43; external Name 'ISR43';
+procedure ISR44; external Name 'ISR44';
+procedure ISR45; external Name 'ISR45';
+procedure ISR46; external Name 'ISR46';
+procedure ISR47; external Name 'ISR47';
+procedure ISR48; external Name 'ISR48';
+procedure ISR49; external Name 'ISR49';
+procedure ISR50; external Name 'ISR50';
+procedure ISR51; external Name 'ISR51';
+procedure ISR52; external Name 'ISR52';
+procedure ISR53; external Name 'ISR53';
+procedure ISR54; external Name 'ISR54';
+procedure ISR55; external Name 'ISR55';
+procedure ISR56; external Name 'ISR56';
+procedure ISR57; external Name 'ISR57';
+procedure ISR58; external Name 'ISR58';
+procedure ISR59; external Name 'ISR59';
+procedure ISR60; external Name 'ISR60';
+procedure ISR61; external Name 'ISR61';
+procedure ISR62; external Name 'ISR62';
+procedure ISR63; external Name 'ISR63';
+procedure ISR64; external Name 'ISR64';
+procedure ISR65; external Name 'ISR65';
+procedure ISR66; external Name 'ISR66';
+procedure ISR67; external Name 'ISR67';
+procedure ISR68; external Name 'ISR68';
+procedure ISR69; external Name 'ISR69';
+procedure ISR70; external Name 'ISR70';
+procedure ISR71; external Name 'ISR71';
+procedure ISR72; external Name 'ISR72';
+procedure ISR73; external Name 'ISR73';
+procedure ISR74; external Name 'ISR74';
+procedure ISR75; external Name 'ISR75';
+procedure ISR76; external Name 'ISR76';
+procedure ISR77; external Name 'ISR77';
+procedure ISR78; external Name 'ISR78';
+procedure ISR79; external Name 'ISR79';
+procedure ISR80; external Name 'ISR80';
+procedure ISR81; external Name 'ISR81';
+procedure ISR82; external Name 'ISR82';
+procedure ISR83; external Name 'ISR83';
+procedure ISR84; external Name 'ISR84';
+procedure ISR85; external Name 'ISR85';
+procedure ISR86; external Name 'ISR86';
+procedure ISR87; external Name 'ISR87';
+procedure ISR88; external Name 'ISR88';
+procedure ISR89; external Name 'ISR89';
+procedure ISR90; external Name 'ISR90';
+procedure ISR91; external Name 'ISR91';
+procedure ISR92; external Name 'ISR92';
+procedure ISR93; external Name 'ISR93';
+procedure ISR94; external Name 'ISR94';
+procedure ISR95; external Name 'ISR95';
+procedure ISR96; external Name 'ISR96';
+procedure ISR97; external Name 'ISR97';
+procedure ISR98; external Name 'ISR98';
+procedure ISR99; external Name 'ISR99';
+procedure ISR100; external Name 'ISR100';
+procedure ISR101; external Name 'ISR101';
+procedure ISR102; external Name 'ISR102';
+procedure ISR103; external Name 'ISR103';
+procedure ISR104; external Name 'ISR104';
+procedure ISR105; external Name 'ISR105';
+procedure ISR106; external Name 'ISR106';
+procedure ISR107; external Name 'ISR107';
+procedure ISR108; external Name 'ISR108';
+procedure ISR109; external Name 'ISR109';
+procedure ISR110; external Name 'ISR110';
+procedure ISR111; external Name 'ISR111';
+procedure ISR112; external Name 'ISR112';
+procedure ISR113; external Name 'ISR113';
+procedure ISR114; external Name 'ISR114';
+procedure ISR115; external Name 'ISR115';
+procedure ISR116; external Name 'ISR116';
+procedure ISR117; external Name 'ISR117';
+procedure ISR118; external Name 'ISR118';
+procedure ISR119; external Name 'ISR119';
+procedure ISR120; external Name 'ISR120';
+procedure ISR121; external Name 'ISR121';
+procedure ISR122; external Name 'ISR122';
+procedure ISR123; external Name 'ISR123';
+procedure ISR124; external Name 'ISR124';
+procedure ISR125; external Name 'ISR125';
+procedure ISR126; external Name 'ISR126';
+procedure ISR127; external Name 'ISR127';
+procedure ISR128; external Name 'ISR128';
+procedure ISR129; external Name 'ISR129';
+procedure ISR130; external Name 'ISR130';
+procedure ISR131; external Name 'ISR131';
+procedure ISR132; external Name 'ISR132';
+procedure ISR133; external Name 'ISR133';
+procedure ISR134; external Name 'ISR134';
+procedure ISR135; external Name 'ISR135';
+procedure ISR136; external Name 'ISR136';
+procedure ISR137; external Name 'ISR137';
+procedure ISR138; external Name 'ISR138';
+procedure ISR139; external Name 'ISR139';
+procedure ISR140; external Name 'ISR140';
+procedure ISR141; external Name 'ISR141';
+procedure ISR142; external Name 'ISR142';
+procedure ISR143; external Name 'ISR143';
+procedure ISR144; external Name 'ISR144';
+procedure ISR145; external Name 'ISR145';
+procedure ISR146; external Name 'ISR146';
+procedure ISR147; external Name 'ISR147';
+procedure ISR148; external Name 'ISR148';
+procedure ISR149; external Name 'ISR149';
+procedure ISR150; external Name 'ISR150';
+procedure ISR151; external Name 'ISR151';
+procedure ISR152; external Name 'ISR152';
+procedure ISR153; external Name 'ISR153';
+procedure ISR154; external Name 'ISR154';
+procedure ISR155; external Name 'ISR155';
+procedure ISR156; external Name 'ISR156';
+procedure ISR157; external Name 'ISR157';
+procedure ISR158; external Name 'ISR158';
+procedure ISR159; external Name 'ISR159';
+procedure ISR160; external Name 'ISR160';
+procedure ISR161; external Name 'ISR161';
+procedure ISR162; external Name 'ISR162';
+procedure ISR163; external Name 'ISR163';
+procedure ISR164; external Name 'ISR164';
+procedure ISR165; external Name 'ISR165';
+procedure ISR166; external Name 'ISR166';
+procedure ISR167; external Name 'ISR167';
+procedure ISR168; external Name 'ISR168';
+procedure ISR169; external Name 'ISR169';
+procedure ISR170; external Name 'ISR170';
+procedure ISR171; external Name 'ISR171';
+procedure ISR172; external Name 'ISR172';
+procedure ISR173; external Name 'ISR173';
+procedure ISR174; external Name 'ISR174';
+procedure ISR175; external Name 'ISR175';
+procedure ISR176; external Name 'ISR176';
+procedure ISR177; external Name 'ISR177';
+procedure ISR178; external Name 'ISR178';
+procedure ISR179; external Name 'ISR179';
+procedure ISR180; external Name 'ISR180';
+procedure ISR181; external Name 'ISR181';
+procedure ISR182; external Name 'ISR182';
+procedure ISR183; external Name 'ISR183';
+procedure ISR184; external Name 'ISR184';
+procedure ISR185; external Name 'ISR185';
+procedure ISR186; external Name 'ISR186';
+procedure ISR187; external Name 'ISR187';
+procedure ISR188; external Name 'ISR188';
+procedure ISR189; external Name 'ISR189';
+procedure ISR190; external Name 'ISR190';
+procedure ISR191; external Name 'ISR191';
+procedure ISR192; external Name 'ISR192';
+procedure ISR193; external Name 'ISR193';
+procedure ISR194; external Name 'ISR194';
+procedure ISR195; external Name 'ISR195';
+procedure ISR196; external Name 'ISR196';
+procedure ISR197; external Name 'ISR197';
+procedure ISR198; external Name 'ISR198';
+procedure ISR199; external Name 'ISR199';
+procedure ISR200; external Name 'ISR200';
+procedure ISR201; external Name 'ISR201';
+procedure ISR202; external Name 'ISR202';
+procedure ISR203; external Name 'ISR203';
+procedure ISR204; external Name 'ISR204';
+procedure ISR205; external Name 'ISR205';
+procedure ISR206; external Name 'ISR206';
+procedure ISR207; external Name 'ISR207';
+procedure ISR208; external Name 'ISR208';
+procedure ISR209; external Name 'ISR209';
+procedure ISR210; external Name 'ISR210';
+procedure ISR211; external Name 'ISR211';
+procedure ISR212; external Name 'ISR212';
+procedure ISR213; external Name 'ISR213';
+procedure ISR214; external Name 'ISR214';
+procedure ISR215; external Name 'ISR215';
+procedure ISR216; external Name 'ISR216';
+procedure ISR217; external Name 'ISR217';
+procedure ISR218; external Name 'ISR218';
+procedure ISR219; external Name 'ISR219';
+procedure ISR220; external Name 'ISR220';
+procedure ISR221; external Name 'ISR221';
+procedure ISR222; external Name 'ISR222';
+procedure ISR223; external Name 'ISR223';
+procedure ISR224; external Name 'ISR224';
+procedure ISR225; external Name 'ISR225';
+procedure ISR226; external Name 'ISR226';
+procedure ISR227; external Name 'ISR227';
+procedure ISR228; external Name 'ISR228';
+procedure ISR229; external Name 'ISR229';
+procedure ISR230; external Name 'ISR230';
+procedure ISR231; external Name 'ISR231';
+procedure ISR232; external Name 'ISR232';
+procedure ISR233; external Name 'ISR233';
+procedure ISR234; external Name 'ISR234';
+procedure ISR235; external Name 'ISR235';
+procedure ISR236; external Name 'ISR236';
+procedure ISR237; external Name 'ISR237';
+procedure ISR238; external Name 'ISR238';
+procedure ISR239; external Name 'ISR239';
+procedure ISR240; external Name 'ISR240';
+procedure ISR241; external Name 'ISR241';
+procedure ISR242; external Name 'ISR242';
+procedure ISR243; external Name 'ISR243';
+procedure ISR244; external Name 'ISR244';
+procedure ISR245; external Name 'ISR245';
+procedure ISR246; external Name 'ISR246';
+procedure ISR247; external Name 'ISR247';
+procedure ISR248; external Name 'ISR248';
+procedure ISR249; external Name 'ISR249';
+procedure ISR250; external Name 'ISR250';
+procedure ISR251; external Name 'ISR251';
+procedure ISR252; external Name 'ISR252';
+procedure ISR253; external Name 'ISR253';
+procedure ISR254; external Name 'ISR254';
+procedure ISR255; external Name 'ISR255';
+
+
+procedure Vectors; assembler; nostackframe;
+asm
+  .section ".init.interrupt_vectors"
+
+    .set DefaultISRHandler, _haltproc
+
+    jal x0, LowLevelStartup
+    jal x0,  ISR1
+    jal x0,  ISR2
+    jal x0,  ISR3
+    jal x0,  ISR4
+    jal x0,  ISR5
+    jal x0,  ISR6
+    jal x0,  ISR7
+    jal x0,  ISR8
+    jal x0,  ISR9
+    jal x0,  ISR10
+    jal x0,  ISR11
+    jal x0,  ISR12
+    .long 0x00100073  // ebreak<--needed for hardware debugger to work
+    jal x0,  ISR14
+    jal x0,  ISR15
+    jal x0, ISR16
+    jal x0, ISR17
+    jal x0, ISR18
+    jal x0, ISR19
+    jal x0, ISR20
+    jal x0, ISR21
+    jal x0, ISR22
+    jal x0, ISR23
+    jal x0, ISR24
+    jal x0, ISR25
+    jal x0, ISR26
+    jal x0, ISR27
+    jal x0, ISR28
+    jal x0, ISR29
+    jal x0, ISR30
+    jal x0, ISR31
+    jal x0, ISR32
+    jal x0, ISR33
+    jal x0, ISR34
+    jal x0, ISR35
+    jal x0, ISR36
+    jal x0, ISR37
+    jal x0, ISR38
+    jal x0, ISR39
+    jal x0, ISR40
+    jal x0, ISR41
+    jal x0, ISR42
+    jal x0, ISR43
+    jal x0, ISR44
+    jal x0, ISR45
+    jal x0, ISR46
+    jal x0, ISR47
+    jal x0, ISR48
+    jal x0, ISR49
+    jal x0, ISR50
+    jal x0, ISR51
+    jal x0, ISR52
+    jal x0, ISR53
+    jal x0, ISR54
+    jal x0, ISR55
+    jal x0, ISR56
+    jal x0, ISR57
+    jal x0, ISR58
+    jal x0, ISR59
+    jal x0, ISR60
+    jal x0, ISR61
+    jal x0, ISR62
+    jal x0, ISR63
+    jal x0, ISR64
+    jal x0, ISR65
+    jal x0, ISR66
+    jal x0, ISR67
+    jal x0, ISR68
+    jal x0, ISR69
+    jal x0, ISR70
+    jal x0, ISR71
+    jal x0, ISR72
+    jal x0, ISR73
+    jal x0, ISR74
+    jal x0, ISR75
+    jal x0, ISR76
+    jal x0, ISR77
+    jal x0, ISR78
+    jal x0, ISR79
+    jal x0, ISR80
+    jal x0, ISR81
+    jal x0, ISR82
+    jal x0, ISR83
+    jal x0, ISR84
+    jal x0, ISR85
+    jal x0, ISR86
+    jal x0, ISR87
+    jal x0, ISR88
+    jal x0, ISR89
+    jal x0, ISR90
+    jal x0, ISR91
+    jal x0, ISR92
+    jal x0, ISR93
+    jal x0, ISR94
+    jal x0, ISR95
+    jal x0, ISR96
+    jal x0, ISR97
+    jal x0, ISR98
+    jal x0, ISR99
+    jal x0, ISR100
+    jal x0, ISR101
+    jal x0, ISR102
+    jal x0, ISR103
+    jal x0, ISR104
+    jal x0, ISR105
+    jal x0, ISR106
+    jal x0, ISR107
+    jal x0, ISR108
+    jal x0, ISR109
+    jal x0, ISR110
+    jal x0, ISR111
+    jal x0, ISR112
+    jal x0, ISR113
+    jal x0, ISR114
+    jal x0, ISR115
+    jal x0, ISR116
+    jal x0, ISR117
+    jal x0, ISR118
+    jal x0, ISR119
+    jal x0, ISR120
+    jal x0, ISR121
+    jal x0, ISR122
+    jal x0, ISR123
+    jal x0, ISR124
+    jal x0, ISR125
+    jal x0, ISR126
+    jal x0, ISR127
+    jal x0, ISR128
+    jal x0, ISR129
+    jal x0, ISR130
+    jal x0, ISR131
+    jal x0, ISR132
+    jal x0, ISR133
+    jal x0, ISR134
+    jal x0, ISR135
+    jal x0, ISR136
+    jal x0, ISR137
+    jal x0, ISR138
+    jal x0, ISR139
+    jal x0, ISR140
+    jal x0, ISR141
+    jal x0, ISR142
+    jal x0, ISR143
+    jal x0, ISR144
+    jal x0, ISR145
+    jal x0, ISR146
+    jal x0, ISR147
+    jal x0, ISR148
+    jal x0, ISR149
+    jal x0, ISR150
+    jal x0, ISR151
+    jal x0, ISR152
+    jal x0, ISR153
+    jal x0, ISR154
+    jal x0, ISR155
+    jal x0, ISR156
+    jal x0, ISR157
+    jal x0, ISR158
+    jal x0, ISR159
+    jal x0, ISR160
+    jal x0, ISR161
+    jal x0, ISR162
+    jal x0, ISR163
+    jal x0, ISR164
+    jal x0, ISR165
+    jal x0, ISR166
+    jal x0, ISR167
+    jal x0, ISR168
+    jal x0, ISR169
+    jal x0, ISR170
+    jal x0, ISR171
+    jal x0, ISR172
+    jal x0, ISR173
+    jal x0, ISR174
+    jal x0, ISR175
+    jal x0, ISR176
+    jal x0, ISR177
+    jal x0, ISR178
+    jal x0, ISR179
+    jal x0, ISR180
+    jal x0, ISR181
+    jal x0, ISR182
+    jal x0, ISR183
+    jal x0, ISR184
+    jal x0, ISR185
+    jal x0, ISR186
+    jal x0, ISR187
+    jal x0, ISR188
+    jal x0, ISR189
+    jal x0, ISR190
+    jal x0, ISR191
+    jal x0, ISR192
+    jal x0, ISR193
+    jal x0, ISR194
+    jal x0, ISR195
+    jal x0, ISR196
+    jal x0, ISR197
+    jal x0, ISR198
+    jal x0, ISR199
+    jal x0, ISR200
+    jal x0, ISR201
+    jal x0, ISR202
+    jal x0, ISR203
+    jal x0, ISR204
+    jal x0, ISR205
+    jal x0, ISR206
+    jal x0, ISR207
+    jal x0, ISR208
+    jal x0, ISR209
+    jal x0, ISR210
+    jal x0, ISR211
+    jal x0, ISR212
+    jal x0, ISR213
+    jal x0, ISR214
+    jal x0, ISR215
+    jal x0, ISR216
+    jal x0, ISR217
+    jal x0, ISR218
+    jal x0, ISR219
+    jal x0, ISR220
+    jal x0, ISR221
+    jal x0, ISR222
+    jal x0, ISR223
+    jal x0, ISR224
+    jal x0, ISR225
+    jal x0, ISR226
+    jal x0, ISR227
+    jal x0, ISR228
+    jal x0, ISR229
+    jal x0, ISR230
+    jal x0, ISR231
+    jal x0, ISR232
+    jal x0, ISR233
+    jal x0, ISR234
+    jal x0, ISR235
+    jal x0, ISR236
+    jal x0, ISR237
+    jal x0, ISR238
+    jal x0, ISR239
+    jal x0, ISR240
+    jal x0, ISR241
+    jal x0, ISR242
+    jal x0, ISR243
+    jal x0, ISR244
+    jal x0, ISR245
+    jal x0, ISR246
+    jal x0, ISR247
+    jal x0, ISR248
+    jal x0, ISR249
+    jal x0, ISR250
+    jal x0, ISR251
+    jal x0, ISR252
+    jal x0, ISR253
+    jal x0, ISR254
+    jal x0, ISR255
+
+    .weak DefaultISRHandler
+    .weak LowLevelStartup
+
+    .weak ISR1
+    .weak ISR2
+    .weak ISR3
+    .weak ISR4
+    .weak ISR5
+    .weak ISR6
+    .weak ISR7
+    .weak ISR8
+    .weak ISR9
+    .weak ISR10
+    .weak ISR11
+    .weak ISR12
+    .weak ISR13
+    .weak ISR14
+    .weak ISR15
+    .weak ISR16
+    .weak ISR17
+    .weak ISR18
+    .weak ISR19
+    .weak ISR20
+    .weak ISR21
+    .weak ISR22
+    .weak ISR23
+    .weak ISR24
+    .weak ISR25
+    .weak ISR26
+    .weak ISR27
+    .weak ISR28
+    .weak ISR29
+    .weak ISR30
+    .weak ISR31
+    .weak ISR32
+    .weak ISR33
+    .weak ISR34
+    .weak ISR35
+    .weak ISR36
+    .weak ISR37
+    .weak ISR38
+    .weak ISR39
+    .weak ISR40
+    .weak ISR41
+    .weak ISR42
+    .weak ISR43
+    .weak ISR44
+    .weak ISR45
+    .weak ISR46
+    .weak ISR47
+    .weak ISR48
+    .weak ISR49
+    .weak ISR50
+    .weak ISR51
+    .weak ISR52
+    .weak ISR53
+    .weak ISR54
+    .weak ISR55
+    .weak ISR56
+    .weak ISR57
+    .weak ISR58
+    .weak ISR59
+    .weak ISR60
+    .weak ISR61
+    .weak ISR62
+    .weak ISR63
+    .weak ISR64
+    .weak ISR65
+    .weak ISR66
+    .weak ISR67
+    .weak ISR68
+    .weak ISR69
+    .weak ISR70
+    .weak ISR71
+    .weak ISR72
+    .weak ISR73
+    .weak ISR74
+    .weak ISR75
+    .weak ISR76
+    .weak ISR77
+    .weak ISR78
+    .weak ISR79
+    .weak ISR80
+    .weak ISR81
+    .weak ISR82
+    .weak ISR83
+    .weak ISR84
+    .weak ISR85
+    .weak ISR86
+    .weak ISR87
+    .weak ISR88
+    .weak ISR89
+    .weak ISR90
+    .weak ISR91
+    .weak ISR92
+    .weak ISR93
+    .weak ISR94
+    .weak ISR95
+    .weak ISR96
+    .weak ISR97
+    .weak ISR98
+    .weak ISR99
+    .weak ISR100
+    .weak ISR101
+    .weak ISR102
+    .weak ISR103
+    .weak ISR104
+    .weak ISR105
+    .weak ISR106
+    .weak ISR107
+    .weak ISR108
+    .weak ISR109
+    .weak ISR110
+    .weak ISR111
+    .weak ISR112
+    .weak ISR113
+    .weak ISR114
+    .weak ISR115
+    .weak ISR116
+    .weak ISR117
+    .weak ISR118
+    .weak ISR119
+    .weak ISR120
+    .weak ISR121
+    .weak ISR122
+    .weak ISR123
+    .weak ISR124
+    .weak ISR125
+    .weak ISR126
+    .weak ISR127
+    .weak ISR128
+    .weak ISR129
+    .weak ISR130
+    .weak ISR131
+    .weak ISR132
+    .weak ISR133
+    .weak ISR134
+    .weak ISR135
+    .weak ISR136
+    .weak ISR137
+    .weak ISR138
+    .weak ISR139
+    .weak ISR140
+    .weak ISR141
+    .weak ISR142
+    .weak ISR143
+    .weak ISR144
+    .weak ISR145
+    .weak ISR146
+    .weak ISR147
+    .weak ISR148
+    .weak ISR149
+    .weak ISR150
+    .weak ISR151
+    .weak ISR152
+    .weak ISR153
+    .weak ISR154
+    .weak ISR155
+    .weak ISR156
+    .weak ISR157
+    .weak ISR158
+    .weak ISR159
+    .weak ISR160
+    .weak ISR161
+    .weak ISR162
+    .weak ISR163
+    .weak ISR164
+    .weak ISR165
+    .weak ISR166
+    .weak ISR167
+    .weak ISR168
+    .weak ISR169
+    .weak ISR170
+    .weak ISR171
+    .weak ISR172
+    .weak ISR173
+    .weak ISR174
+    .weak ISR175
+    .weak ISR176
+    .weak ISR177
+    .weak ISR178
+    .weak ISR179
+    .weak ISR180
+    .weak ISR181
+    .weak ISR182
+    .weak ISR183
+    .weak ISR184
+    .weak ISR185
+    .weak ISR186
+    .weak ISR187
+    .weak ISR188
+    .weak ISR189
+    .weak ISR190
+    .weak ISR191
+    .weak ISR192
+    .weak ISR193
+    .weak ISR194
+    .weak ISR195
+    .weak ISR196
+    .weak ISR197
+    .weak ISR198
+    .weak ISR199
+    .weak ISR200
+    .weak ISR201
+    .weak ISR202
+    .weak ISR203
+    .weak ISR204
+    .weak ISR205
+    .weak ISR206
+    .weak ISR207
+    .weak ISR208
+    .weak ISR209
+    .weak ISR210
+    .weak ISR211
+    .weak ISR212
+    .weak ISR213
+    .weak ISR214
+    .weak ISR215
+    .weak ISR216
+    .weak ISR217
+    .weak ISR218
+    .weak ISR219
+    .weak ISR220
+    .weak ISR221
+    .weak ISR222
+    .weak ISR223
+    .weak ISR224
+    .weak ISR225
+    .weak ISR226
+    .weak ISR227
+    .weak ISR228
+    .weak ISR229
+    .weak ISR230
+    .weak ISR231
+    .weak ISR232
+    .weak ISR233
+    .weak ISR234
+    .weak ISR235
+    .weak ISR236
+    .weak ISR237
+    .weak ISR238
+    .weak ISR239
+    .weak ISR240
+    .weak ISR241
+    .weak ISR242
+    .weak ISR243
+    .weak ISR244
+    .weak ISR245
+    .weak ISR246
+    .weak ISR247
+    .weak ISR248
+    .weak ISR249
+    .weak ISR250
+    .weak ISR251
+    .weak ISR252
+    .weak ISR253
+    .weak ISR254
+    .weak ISR255
+
+    .set ISR1, DefaultISRHandler
+    .set ISR2, DefaultISRHandler
+    .set ISR3, DefaultISRHandler
+    .set ISR4, DefaultISRHandler
+    .set ISR5, DefaultISRHandler
+    .set ISR6, DefaultISRHandler
+    .set ISR7, DefaultISRHandler
+    .set ISR8, DefaultISRHandler
+    .set ISR9, DefaultISRHandler
+    .set ISR10, DefaultISRHandler
+    .set ISR11, DefaultISRHandler
+    .set ISR12, DefaultISRHandler
+    .set ISR13, DefaultISRHandler
+    .set ISR14, DefaultISRHandler
+    .set ISR15, DefaultISRHandler
+    .set ISR16, DefaultISRHandler
+    .set ISR17, DefaultISRHandler
+    .set ISR18, DefaultISRHandler
+    .set ISR19, DefaultISRHandler
+    .set ISR20, DefaultISRHandler
+    .set ISR21, DefaultISRHandler
+    .set ISR22, DefaultISRHandler
+    .set ISR23, DefaultISRHandler
+    .set ISR24, DefaultISRHandler
+    .set ISR25, DefaultISRHandler
+    .set ISR26, DefaultISRHandler
+    .set ISR27, DefaultISRHandler
+    .set ISR28, DefaultISRHandler
+    .set ISR29, DefaultISRHandler
+    .set ISR30, DefaultISRHandler
+    .set ISR31, DefaultISRHandler
+    .set ISR32, DefaultISRHandler
+    .set ISR33, DefaultISRHandler
+    .set ISR34, DefaultISRHandler
+    .set ISR35, DefaultISRHandler
+    .set ISR36, DefaultISRHandler
+    .set ISR37, DefaultISRHandler
+    .set ISR38, DefaultISRHandler
+    .set ISR39, DefaultISRHandler
+    .set ISR40, DefaultISRHandler
+    .set ISR41, DefaultISRHandler
+    .set ISR42, DefaultISRHandler
+    .set ISR43, DefaultISRHandler
+    .set ISR44, DefaultISRHandler
+    .set ISR45, DefaultISRHandler
+    .set ISR46, DefaultISRHandler
+    .set ISR47, DefaultISRHandler
+    .set ISR48, DefaultISRHandler
+    .set ISR49, DefaultISRHandler
+    .set ISR50, DefaultISRHandler
+    .set ISR51, DefaultISRHandler
+    .set ISR52, DefaultISRHandler
+    .set ISR53, DefaultISRHandler
+    .set ISR54, DefaultISRHandler
+    .set ISR55, DefaultISRHandler
+    .set ISR56, DefaultISRHandler
+    .set ISR57, DefaultISRHandler
+    .set ISR58, DefaultISRHandler
+    .set ISR59, DefaultISRHandler
+    .set ISR60, DefaultISRHandler
+    .set ISR61, DefaultISRHandler
+    .set ISR62, DefaultISRHandler
+    .set ISR63, DefaultISRHandler
+    .set ISR64, DefaultISRHandler
+    .set ISR65, DefaultISRHandler
+    .set ISR66, DefaultISRHandler
+    .set ISR67, DefaultISRHandler
+    .set ISR68, DefaultISRHandler
+    .set ISR69, DefaultISRHandler
+    .set ISR70, DefaultISRHandler
+    .set ISR71, DefaultISRHandler
+    .set ISR72, DefaultISRHandler
+    .set ISR73, DefaultISRHandler
+    .set ISR74, DefaultISRHandler
+    .set ISR75, DefaultISRHandler
+    .set ISR76, DefaultISRHandler
+    .set ISR77, DefaultISRHandler
+    .set ISR78, DefaultISRHandler
+    .set ISR79, DefaultISRHandler
+    .set ISR80, DefaultISRHandler
+    .set ISR81, DefaultISRHandler
+    .set ISR82, DefaultISRHandler
+    .set ISR83, DefaultISRHandler
+    .set ISR84, DefaultISRHandler
+    .set ISR85, DefaultISRHandler
+    .set ISR86, DefaultISRHandler
+    .set ISR87, DefaultISRHandler
+    .set ISR88, DefaultISRHandler
+    .set ISR89, DefaultISRHandler
+    .set ISR90, DefaultISRHandler
+    .set ISR91, DefaultISRHandler
+    .set ISR92, DefaultISRHandler
+    .set ISR93, DefaultISRHandler
+    .set ISR94, DefaultISRHandler
+    .set ISR95, DefaultISRHandler
+    .set ISR96, DefaultISRHandler
+    .set ISR97, DefaultISRHandler
+    .set ISR98, DefaultISRHandler
+    .set ISR99, DefaultISRHandler
+    .set ISR100, DefaultISRHandler
+    .set ISR101, DefaultISRHandler
+    .set ISR102, DefaultISRHandler
+    .set ISR103, DefaultISRHandler
+    .set ISR104, DefaultISRHandler
+    .set ISR105, DefaultISRHandler
+    .set ISR106, DefaultISRHandler
+    .set ISR107, DefaultISRHandler
+    .set ISR108, DefaultISRHandler
+    .set ISR109, DefaultISRHandler
+    .set ISR110, DefaultISRHandler
+    .set ISR111, DefaultISRHandler
+    .set ISR112, DefaultISRHandler
+    .set ISR113, DefaultISRHandler
+    .set ISR114, DefaultISRHandler
+    .set ISR115, DefaultISRHandler
+    .set ISR116, DefaultISRHandler
+    .set ISR117, DefaultISRHandler
+    .set ISR118, DefaultISRHandler
+    .set ISR119, DefaultISRHandler
+    .set ISR120, DefaultISRHandler
+    .set ISR121, DefaultISRHandler
+    .set ISR122, DefaultISRHandler
+    .set ISR123, DefaultISRHandler
+    .set ISR124, DefaultISRHandler
+    .set ISR125, DefaultISRHandler
+    .set ISR126, DefaultISRHandler
+    .set ISR127, DefaultISRHandler
+    .set ISR128, DefaultISRHandler
+    .set ISR129, DefaultISRHandler
+    .set ISR130, DefaultISRHandler
+    .set ISR131, DefaultISRHandler
+    .set ISR132, DefaultISRHandler
+    .set ISR133, DefaultISRHandler
+    .set ISR134, DefaultISRHandler
+    .set ISR135, DefaultISRHandler
+    .set ISR136, DefaultISRHandler
+    .set ISR137, DefaultISRHandler
+    .set ISR138, DefaultISRHandler
+    .set ISR139, DefaultISRHandler
+    .set ISR140, DefaultISRHandler
+    .set ISR141, DefaultISRHandler
+    .set ISR142, DefaultISRHandler
+    .set ISR143, DefaultISRHandler
+    .set ISR144, DefaultISRHandler
+    .set ISR145, DefaultISRHandler
+    .set ISR146, DefaultISRHandler
+    .set ISR147, DefaultISRHandler
+    .set ISR148, DefaultISRHandler
+    .set ISR149, DefaultISRHandler
+    .set ISR150, DefaultISRHandler
+    .set ISR151, DefaultISRHandler
+    .set ISR152, DefaultISRHandler
+    .set ISR153, DefaultISRHandler
+    .set ISR154, DefaultISRHandler
+    .set ISR155, DefaultISRHandler
+    .set ISR156, DefaultISRHandler
+    .set ISR157, DefaultISRHandler
+    .set ISR158, DefaultISRHandler
+    .set ISR159, DefaultISRHandler
+    .set ISR160, DefaultISRHandler
+    .set ISR161, DefaultISRHandler
+    .set ISR162, DefaultISRHandler
+    .set ISR163, DefaultISRHandler
+    .set ISR164, DefaultISRHandler
+    .set ISR165, DefaultISRHandler
+    .set ISR166, DefaultISRHandler
+    .set ISR167, DefaultISRHandler
+    .set ISR168, DefaultISRHandler
+    .set ISR169, DefaultISRHandler
+    .set ISR170, DefaultISRHandler
+    .set ISR171, DefaultISRHandler
+    .set ISR172, DefaultISRHandler
+    .set ISR173, DefaultISRHandler
+    .set ISR174, DefaultISRHandler
+    .set ISR175, DefaultISRHandler
+    .set ISR176, DefaultISRHandler
+    .set ISR177, DefaultISRHandler
+    .set ISR178, DefaultISRHandler
+    .set ISR179, DefaultISRHandler
+    .set ISR180, DefaultISRHandler
+    .set ISR181, DefaultISRHandler
+    .set ISR182, DefaultISRHandler
+    .set ISR183, DefaultISRHandler
+    .set ISR184, DefaultISRHandler
+    .set ISR185, DefaultISRHandler
+    .set ISR186, DefaultISRHandler
+    .set ISR187, DefaultISRHandler
+    .set ISR188, DefaultISRHandler
+    .set ISR189, DefaultISRHandler
+    .set ISR190, DefaultISRHandler
+    .set ISR191, DefaultISRHandler
+    .set ISR192, DefaultISRHandler
+    .set ISR193, DefaultISRHandler
+    .set ISR194, DefaultISRHandler
+    .set ISR195, DefaultISRHandler
+    .set ISR196, DefaultISRHandler
+    .set ISR197, DefaultISRHandler
+    .set ISR198, DefaultISRHandler
+    .set ISR199, DefaultISRHandler
+    .set ISR200, DefaultISRHandler
+    .set ISR201, DefaultISRHandler
+    .set ISR202, DefaultISRHandler
+    .set ISR203, DefaultISRHandler
+    .set ISR204, DefaultISRHandler
+    .set ISR205, DefaultISRHandler
+    .set ISR206, DefaultISRHandler
+    .set ISR207, DefaultISRHandler
+    .set ISR208, DefaultISRHandler
+    .set ISR209, DefaultISRHandler
+    .set ISR210, DefaultISRHandler
+    .set ISR211, DefaultISRHandler
+    .set ISR212, DefaultISRHandler
+    .set ISR213, DefaultISRHandler
+    .set ISR214, DefaultISRHandler
+    .set ISR215, DefaultISRHandler
+    .set ISR216, DefaultISRHandler
+    .set ISR217, DefaultISRHandler
+    .set ISR218, DefaultISRHandler
+    .set ISR219, DefaultISRHandler
+    .set ISR220, DefaultISRHandler
+    .set ISR221, DefaultISRHandler
+    .set ISR222, DefaultISRHandler
+    .set ISR223, DefaultISRHandler
+    .set ISR224, DefaultISRHandler
+    .set ISR225, DefaultISRHandler
+    .set ISR226, DefaultISRHandler
+    .set ISR227, DefaultISRHandler
+    .set ISR228, DefaultISRHandler
+    .set ISR229, DefaultISRHandler
+    .set ISR230, DefaultISRHandler
+    .set ISR231, DefaultISRHandler
+    .set ISR232, DefaultISRHandler
+    .set ISR233, DefaultISRHandler
+    .set ISR234, DefaultISRHandler
+    .set ISR235, DefaultISRHandler
+    .set ISR236, DefaultISRHandler
+    .set ISR237, DefaultISRHandler
+    .set ISR238, DefaultISRHandler
+    .set ISR239, DefaultISRHandler
+    .set ISR240, DefaultISRHandler
+    .set ISR241, DefaultISRHandler
+    .set ISR242, DefaultISRHandler
+    .set ISR243, DefaultISRHandler
+    .set ISR244, DefaultISRHandler
+    .set ISR245, DefaultISRHandler
+    .set ISR246, DefaultISRHandler
+    .set ISR247, DefaultISRHandler
+    .set ISR248, DefaultISRHandler
+    .set ISR249, DefaultISRHandler
+    .set ISR250, DefaultISRHandler
+    .set ISR251, DefaultISRHandler
+    .set ISR252, DefaultISRHandler
+    .set ISR253, DefaultISRHandler
+    .set ISR254, DefaultISRHandler
+    .set ISR255, DefaultISRHandler
+
+  .text
+end;
+
+end.

rtl/embedded/riscv32/fe310g000.pp

@@ -249,7 +249,7 @@ var
   SPI2          : TSPI_Registers absolute SPI2_BASE;
   UART0         : TUART_Registers absolute UART0_BASE;
   UART1         : TUART_Registers absolute UART1_BASE;
-
+  procedure InitMemAndStart; noreturn;
 implementation
 
 procedure NonMaskableInt_interrupt; external name 'NonMaskableInt_interrupt';
@@ -342,6 +342,11 @@ procedure DCMI_interrupt; external name 'DCMI_interrupt';
 procedure HASH_RNG_interrupt; external name 'HASH_RNG_interrupt';
 procedure FPU_interrupt; external name 'FPU_interrupt';
 
+procedure ResetISR; external name 'ResetISR';
+procedure HandleArchSpecificReset; noreturn;
+begin
+ InitMemAndStart
+end;
 {$i riscv32_start.inc}
 
 procedure Vectors; assembler; nostackframe;
@@ -350,7 +355,7 @@ asm
   .section ".init.interrupt_vectors"
   interrupt_vectors:
   .long _stack_top
-  .long Startup
+  .long HandleArchSpecificReset
   .long NonMaskableInt_interrupt
   .long 0
   .long MemoryManagement_interrupt

rtl/embedded/riscv32/fe310g002.pp

@@ -252,7 +252,7 @@ var
   SPI2          : TSPI_Registers absolute SPI2_BASE;
   UART0         : TUART_Registers absolute UART0_BASE;
   UART1         : TUART_Registers absolute UART1_BASE;
-
+   procedure InitMemAndStart; noreturn;
 implementation
 
 procedure NonMaskableInt_interrupt; external name 'NonMaskableInt_interrupt';
@@ -345,6 +345,11 @@ procedure DCMI_interrupt; external name 'DCMI_interrupt';
 procedure HASH_RNG_interrupt; external name 'HASH_RNG_interrupt';
 procedure FPU_interrupt; external name 'FPU_interrupt';
 
+procedure ResetISR; external name 'ResetISR';
+procedure HandleArchSpecificReset; noreturn;
+begin
+ InitMemAndStart
+end;
 {$i riscv32_start.inc}
 
 procedure Vectors; assembler; nostackframe;
@@ -353,7 +358,7 @@ asm
   .section ".init.interrupt_vectors"
   interrupt_vectors:
   jal _stack_top
-  jal Startup
+  jal HandleArchSpecificReset
   jal NonMaskableInt_interrupt
   .long 0
   .long MemoryManagement_interrupt

rtl/embedded/riscv32/gd32vf103xx.pp

@@ -499,7 +499,7 @@ var
   UART3       : TUSART_Registers absolute UART3_BASE;
   UART4       : TUSART_Registers absolute UART4_BASE;
   WWDGT       : TWWDGT_Registers absolute WWDGT_BASE;
-
+  procedure InitMemAndStart; noreturn;
 implementation
   procedure CLIC_RESERVED_ISR; external name 'CLIC_RESERVED_ISR';
   procedure CLIC_SFT_ISR;      external name 'CLIC_SFT_ISR';
@@ -566,7 +566,12 @@ implementation
   procedure CAN1_RX1_ISR;      external name 'CAN1_RX1_ISR';
   procedure CAN1_EWMC_ISR;     external name 'CAN1_EWMC_ISR';
   procedure USBFS_ISR;         external name 'USBFS_ISR';
-  
+
+procedure ResetISR; external name 'ResetISR';
+procedure HandleArchSpecificReset; noreturn;
+begin
+ InitMemAndStart
+end;
   {$i riscv32_start.inc}
 
   procedure Vectors; assembler; nostackframe;

rtl/embedded/riscv32/riscv32_start.inc

@@ -9,15 +9,17 @@ var
 
 procedure Pascalmain; external name 'PASCALMAIN';
 
-procedure HaltProc; noreturn; public name'_haltproc';
+procedure _haltproc; external Name '_haltproc';
+procedure HaltProc; noreturn;
 begin
   while true do;
 end;
 
-procedure Startup;
+procedure InitMemAndStart; noreturn;
 var
   pdest, psrc, pend: PLongWord;
 begin
+
   pdest:=@_data;
   psrc:=@_etext;
   pend:=@_bss_start;
@@ -40,11 +42,18 @@ begin
   HaltProc;
 end;
 
+
 procedure LowlevelStartup; assembler; nostackframe; [public, alias: '_START'];
 asm
+  .weak ResetISR
+  .set ResetISR, InitMemAndStart;
+  .weak _haltproc
+  .set _haltproc, HaltProc
+
   { Initialize global Pointer }
   .option push
   .option norelax
+
   lui   gp, %hi(_bss_start+0x800)
   addi  gp, gp, %lo(_bss_start+0x800)
   .option pop
@@ -57,49 +66,5 @@ asm
   { Initialise FP to zero }
   addi  fp, x0, 0
 
-  jal x0, Startup
-//   { Copy Initialized vars}
-//   lui   x10,%hi(_data)
-//   addi  x10,x10,%lo(_data)
-//   lui   x11,%hi(_edata)
-//   addi  x11,x11,%lo(_edata)
-//   sltu  x12,x10,x11
-//   beq   x12,x0,.L2
-//   lui   x12,%hi(_etext)
-//   addi  x12,x12,%lo(_etext)
-//   addi  x10,x10,-1
-//   addi  x12,x12,-1
-// .L1:
-//   addi  x10,x10,1
-//   addi  x12,x12,1
-//   lb    x13,0(x10)
-//   sb    x13,0(x12)
-//   bne   x10,x11,.L1
-// .L2:
-// { Initialize Memory}
-//   lui   x10,%hi(_bss_start)
-//   addi  x10,x10,%lo(_bss_start)
-//   lui   x11,%hi(_bss_end)
-//   addi  x11,x11,%lo(_bss_end)
-//   sltu  x12,x10,x11
-//   beq   x12,x0,.L4
-//   addi  x10,x10,-1
-// .L3:
-//   addi  x10,x10,1
-//   sb    x0,0(x10)
-//   bne   x10,x11,.L3
-// .L4:
-//   jal   x0,PASCALMAIN
-//   jal   x0,HaltProc
-// .L_bss_start:
-//   .long _bss_start
-// .L_bss_end:
-//   .long _bss_end
-// .L_etext:
-//   .long _etext
-// .L_data:
-//   .long _data
-// .L_edata:
-//   .long _edata
-// .text
+  jal x0, HandleArchSpecificReset
 end;