mirrors
/
micropython
mirror of https://github.com/micropython/micropython.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

py/asmx64: Support use of top 8 regs in src_r64 argument. 

Signed-off-by: Damien George <damien@micropython.org>
This commit is contained in:
Damien George 2020-11-24 23:37:05 +11:00
parent 04927dfaca
commit f49d47c167
1 changed files with 6 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
py/asmx64.c
View File

@ -285,31 +285,28 @@ void asm_x64_mov_r64_to_mem64(asm_x64_t *as, int src_r64, int dest_r64, int dest
}
void asm_x64_mov_mem8_to_r64zx(asm_x64_t *as, int src_r64, int src_disp, int dest_r64) {
assert(src_r64 < 8);
if (dest_r64 < 8) {
if (src_r64 < 8 && dest_r64 < 8) {
asm_x64_write_byte_2(as, 0x0f, OPCODE_MOVZX_RM8_TO_R64);
} else {
asm_x64_write_byte_3(as, REX_PREFIX | REX_R, 0x0f, OPCODE_MOVZX_RM8_TO_R64);
asm_x64_write_byte_3(as, REX_PREFIX | REX_R_FROM_R64(dest_r64) | REX_B_FROM_R64(src_r64), 0x0f, OPCODE_MOVZX_RM8_TO_R64);
}
asm_x64_write_r64_disp(as, dest_r64, src_r64, src_disp);
}
void asm_x64_mov_mem16_to_r64zx(asm_x64_t *as, int src_r64, int src_disp, int dest_r64) {
assert(src_r64 < 8);
if (dest_r64 < 8) {
if (src_r64 < 8 && dest_r64 < 8) {
asm_x64_write_byte_2(as, 0x0f, OPCODE_MOVZX_RM16_TO_R64);
} else {
asm_x64_write_byte_3(as, REX_PREFIX | REX_R, 0x0f, OPCODE_MOVZX_RM16_TO_R64);
asm_x64_write_byte_3(as, REX_PREFIX | REX_R_FROM_R64(dest_r64) | REX_B_FROM_R64(src_r64), 0x0f, OPCODE_MOVZX_RM16_TO_R64);
}
asm_x64_write_r64_disp(as, dest_r64, src_r64, src_disp);
}
void asm_x64_mov_mem32_to_r64zx(asm_x64_t *as, int src_r64, int src_disp, int dest_r64) {
assert(src_r64 < 8);
if (dest_r64 < 8) {
if (src_r64 < 8 && dest_r64 < 8) {
asm_x64_write_byte_1(as, OPCODE_MOV_RM64_TO_R64);
} else {
asm_x64_write_byte_2(as, REX_PREFIX | REX_R, OPCODE_MOV_RM64_TO_R64);
asm_x64_write_byte_2(as, REX_PREFIX | REX_R_FROM_R64(dest_r64) | REX_B_FROM_R64(src_r64), OPCODE_MOV_RM64_TO_R64);
}
asm_x64_write_r64_disp(as, dest_r64, src_r64, src_disp);
}