+ added AtomicAdd() and AtomicSub() intrinsics to the WebAssembly unit

rtl/wasm32/webassembly.pp

@@ -19,6 +19,24 @@ interface
 
 procedure AtomicFence; inline;
 
+function AtomicAdd(var Mem: Int8; Data: Int8): Int8; inline;
+function AtomicAdd(var Mem: UInt8; Data: UInt8): UInt8; inline;
+function AtomicAdd(var Mem: Int16; Data: Int16): Int16; inline;
+function AtomicAdd(var Mem: UInt16; Data: UInt16): UInt16; inline;
+function AtomicAdd(var Mem: Int32; Data: Int32): Int32; inline;
+function AtomicAdd(var Mem: UInt32; Data: UInt32): UInt32; inline;
+function AtomicAdd(var Mem: Int64; Data: Int64): Int64; inline;
+function AtomicAdd(var Mem: UInt64; Data: UInt64): UInt64; inline;
+
+function AtomicSub(var Mem: Int8; Data: Int8): Int8; inline;
+function AtomicSub(var Mem: UInt8; Data: UInt8): UInt8; inline;
+function AtomicSub(var Mem: Int16; Data: Int16): Int16; inline;
+function AtomicSub(var Mem: UInt16; Data: UInt16): UInt16; inline;
+function AtomicSub(var Mem: Int32; Data: Int32): Int32; inline;
+function AtomicSub(var Mem: UInt32; Data: UInt32): UInt32; inline;
+function AtomicSub(var Mem: Int64; Data: Int64): Int64; inline;
+function AtomicSub(var Mem: UInt64; Data: UInt64): UInt64; inline;
+
 implementation
 
 {$I cpuh.inc}
@@ -28,4 +46,84 @@ begin
   fpc_wasm32_atomic_fence;
 end;
 
+function AtomicAdd(var Mem: Int8; Data: Int8): Int8; inline;
+begin
+  AtomicAdd:=Int8(fpc_wasm32_i32_atomic_rmw8_add_u(@Mem,Byte(Data)));
+end;
+
+function AtomicAdd(var Mem: UInt8; Data: UInt8): UInt8; inline;
+begin
+  AtomicAdd:=UInt8(fpc_wasm32_i32_atomic_rmw8_add_u(@Mem,Data));
+end;
+
+function AtomicAdd(var Mem: Int16; Data: Int16): Int16; inline;
+begin
+  AtomicAdd:=Int16(fpc_wasm32_i32_atomic_rmw16_add_u(@Mem,Word(Data)));
+end;
+
+function AtomicAdd(var Mem: UInt16; Data: UInt16): UInt16; inline;
+begin
+  AtomicAdd:=UInt16(fpc_wasm32_i32_atomic_rmw16_add_u(@Mem,Data));
+end;
+
+function AtomicAdd(var Mem: Int32; Data: Int32): Int32; inline;
+begin
+  AtomicAdd:=Int32(fpc_wasm32_i32_atomic_rmw_add(@Mem,LongWord(Data)));
+end;
+
+function AtomicAdd(var Mem: UInt32; Data: UInt32): UInt32; inline;
+begin
+  AtomicAdd:=fpc_wasm32_i32_atomic_rmw_add(@Mem,Data);
+end;
+
+function AtomicAdd(var Mem: Int64; Data: Int64): Int64; inline;
+begin
+  AtomicAdd:=Int64(fpc_wasm32_i64_atomic_rmw_add(@Mem,QWord(Data)));
+end;
+
+function AtomicAdd(var Mem: UInt64; Data: UInt64): UInt64; inline;
+begin
+  AtomicAdd:=fpc_wasm32_i64_atomic_rmw_add(@Mem,Data);
+end;
+
+function AtomicSub(var Mem: Int8; Data: Int8): Int8; inline;
+begin
+  AtomicSub:=Int8(fpc_wasm32_i32_atomic_rmw8_sub_u(@Mem,Byte(Data)));
+end;
+
+function AtomicSub(var Mem: UInt8; Data: UInt8): UInt8; inline;
+begin
+  AtomicSub:=UInt8(fpc_wasm32_i32_atomic_rmw8_sub_u(@Mem,Data));
+end;
+
+function AtomicSub(var Mem: Int16; Data: Int16): Int16; inline;
+begin
+  AtomicSub:=Int16(fpc_wasm32_i32_atomic_rmw16_sub_u(@Mem,Word(Data)));
+end;
+
+function AtomicSub(var Mem: UInt16; Data: UInt16): UInt16; inline;
+begin
+  AtomicSub:=UInt16(fpc_wasm32_i32_atomic_rmw16_sub_u(@Mem,Data));
+end;
+
+function AtomicSub(var Mem: Int32; Data: Int32): Int32; inline;
+begin
+  AtomicSub:=Int32(fpc_wasm32_i32_atomic_rmw_sub(@Mem,LongWord(Data)));
+end;
+
+function AtomicSub(var Mem: UInt32; Data: UInt32): UInt32; inline;
+begin
+  AtomicSub:=fpc_wasm32_i32_atomic_rmw_sub(@Mem,Data);
+end;
+
+function AtomicSub(var Mem: Int64; Data: Int64): Int64; inline;
+begin
+  AtomicSub:=Int64(fpc_wasm32_i64_atomic_rmw_sub(@Mem,QWord(Data)));
+end;
+
+function AtomicSub(var Mem: UInt64; Data: UInt64): UInt64; inline;
+begin
+  AtomicSub:=fpc_wasm32_i64_atomic_rmw_sub(@Mem,Data);
+end;
+
 end.