impl x86_64 calling convention

1 files changed, 48 insertions, 0 deletions

diff --git a/register.c b/register.c
new file mode 100644
index 0000000..ca095ea
--- /dev/null
+++ b/register.c
@@ -0,0 +1,48 @@
+#include "register.h"
+
+const struct reg RAX = {
+    .qword = "rax",
+    .dword = "eax",
+    .word = "ax",
+    .byte = "al",
+};
+const struct reg RDI = {
+    .qword = "rdi",
+    .dword = "edi",
+    .word = "di",
+    .byte = "dil",
+};
+const struct reg RSI = {
+    .qword = "rsi",
+    .dword = "esi",
+    .word = "si",
+    .byte = "sil",
+};
+const struct reg RDX = {
+    .qword = "rdx",
+    .dword = "edx",
+    .word = "dx",
+    .byte = "dl",
+};
+const struct reg R10 = {
+    .qword = "r10",
+    .dword = "r10d",
+    .word = "r10w",
+    .byte = "r10b",
+};
+const struct reg R9 = {
+    .qword = "r9",
+    .dword = "r9d",
+    .word = "r9w",
+    .byte = "r9b",
+};
+const struct reg R8 = {
+    .qword = "r8",
+    .dword = "r8d",
+    .word = "r8w",
+    .byte = "r8b",
+};
+
+const struct reg* const CALLING_CONV[] = {&RDI, &RSI, &RDX, &R10, &R9, &R8};
+const unsigned long long CC_N_REGS =
+    sizeof(CALLING_CONV) / sizeof(const struct reg* const);