Lerking/micropython
1
0
Fork 0
mirror of https://github.com/micropython/micropython.git synced 2026-01-07 12:40:15 +01:00
Code Issues Actions 27 Packages Projects Releases Wiki Activity

py/asm: Add funcs/macros to emit machine code for logical-shift-right.

Browse Source 
Signed-off-by: Damien George <damien@micropython.org>
This commit is contained in:
Damien George
2020-06-25 13:09:07 +10:00
parent 137df81757
commit aa26fe62d8
8 changed files with 31 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
py/asmx86.c
View File

@@ -67,6 +67,7 @@
// #define OPCODE_SHR_RM32_BY_I8 (0xc1) /* /5 */
// #define OPCODE_SAR_RM32_BY_I8 (0xc1) /* /7 */
#define OPCODE_SHL_RM32_CL (0xd3) /* /4 */
#define OPCODE_SHR_RM32_CL (0xd3) /* /5 */
#define OPCODE_SAR_RM32_CL (0xd3) /* /7 */
// #define OPCODE_CMP_I32_WITH_RM32 (0x81) /* /7 */
// #define OPCODE_CMP_I8_WITH_RM32 (0x83) /* /7 */
@@ -259,6 +260,10 @@ void asm_x86_shl_r32_cl(asm_x86_t *as, int dest_r32) {
asm_x86_generic_r32_r32(as, dest_r32, 4, OPCODE_SHL_RM32_CL);
}
void asm_x86_shr_r32_cl(asm_x86_t *as, int dest_r32) {
asm_x86_generic_r32_r32(as, dest_r32, 5, OPCODE_SHR_RM32_CL);
}
void asm_x86_sar_r32_cl(asm_x86_t *as, int dest_r32) {
asm_x86_generic_r32_r32(as, dest_r32, 7, OPCODE_SAR_RM32_CL);
}