Add fxsr.odin

2026-08-07 08:08:50 +00:00 · 2022-05-29 13:44:00 +01:00
parent 77d4409549
commit 846f8377b2
2 changed files with 33 additions and 2 deletions
@@ -0,0 +1,33 @@
+//+build i386, amd64
+package simd_x86
+
+_fxsave :: #force_inline proc "c" (mem_addr: rawptr) {
+	fxsave(mem_addr)
+}
+_fxrstor :: #force_inline proc "c" (mem_addr: rawptr) {
+	fxrstor(mem_addr)
+}
+
+when ODIN_ARCH == .amd64 {
+	_fxsave64 :: #force_inline proc "c" (mem_addr: rawptr) {
+		fxsave64(mem_addr)
+	}
+	_fxrstor64 :: #force_inline proc "c" (mem_addr: rawptr) {
+		fxrstor64(mem_addr)
+	}
+}
+
+@(default_calling_convention="c")
+@(private)
+foreign _ {
+	@(link_name="llvm.x86.fxsave")
+	fxsave    :: proc(p: rawptr) ---
+	@(link_name="llvm.x86.fxrstor")
+	fxrstor   :: proc(p: rawptr) ---
+
+	// amd64 only
+	@(link_name="llvm.x86.fxsave64")
+	fxsave64  :: proc(p: rawptr) ---
+	@(link_name="llvm.x86.fxrstor64")
+	fxrstor64 :: proc(p: rawptr) ---
+}