diff options
| author | Michael Forney <[email protected]> | 2021-10-19 13:44:45 -0700 |
|---|---|---|
| committer | Michael Forney <[email protected]> | 2021-10-19 13:44:45 -0700 |
| commit | aa8a1c835b392023d2551257ee02951e43ee27db (patch) | |
| tree | 1342cc8286c434b63551c2a33c3e12b0261c2419 /asm.peg | |
| parent | 1ac09dc704d199bb680b9b5939907ec828b5a61e (diff) | |
Use small immediates when possible for imul.
Diffstat (limited to 'asm.peg')
| -rw-r--r-- | asm.peg | 12 |
1 files changed, 6 insertions, 6 deletions
@@ -256,13 +256,13 @@ imul = "imul" ( | 'l'? ws s:mem ws? ',' ws? d:r32 { $$ = MEMREG({.w=0}, -1, 0x01000faf, s, d); } | 'q'? ws s:mem ws? ',' ws? d:r64 { $$ = MEMREG({.w=1}, -1, 0x01000faf, s, d); } - | 'w'? ws i:imm16 ws? ',' ws? s:r16 ws? ',' ws? d:r16 { $$ = IMMREGREG2({.w=0}, 0x66, 0x69, i, s, d); } - | 'l'? ws i:imm32 ws? ',' ws? s:r32 ws? ',' ws? d:r32 { $$ = IMMREGREG2({.w=0}, -1, 0x69, i, s, d); } - | 'q'? ws i:imm32 ws? ',' ws? s:r64 ws? ',' ws? d:r64 { $$ = IMMREGREG2({.w=1}, -1, 0x69, i, s, d); } + | 'w'? ws i:imm16-8 ws? ',' ws? s:r16 ws? ',' ws? d:r16 { $$ = IMMREGREG2({.w=0}, 0x66, i.imm.nbytes == 1 ? 0x6b : 0x69, i, s, d); } + | 'l'? ws i:imm32-8 ws? ',' ws? s:r32 ws? ',' ws? d:r32 { $$ = IMMREGREG2({.w=0}, -1, i.imm.nbytes == 1 ? 0x6b : 0x69, i, s, d); } + | 'q'? ws i:imm32-8 ws? ',' ws? s:r64 ws? ',' ws? d:r64 { $$ = IMMREGREG2({.w=1}, -1, i.imm.nbytes == 1 ? 0x6b : 0x69, i, s, d); } - | 'w'? ws i:imm16 ws? ',' ws? s:mem ws? ',' ws? d:r16 { $$ = IMMMEMREG({.w=0}, 0x66, 0x69, i, s, d); } - | 'l'? ws i:imm32 ws? ',' ws? s:mem ws? ',' ws? d:r32 { $$ = IMMMEMREG({.w=0}, -1, 0x69, i, s, d); } - | 'q'? ws i:imm32 ws? ',' ws? s:mem ws? ',' ws? d:r64 { $$ = IMMMEMREG({.w=1}, -1, 0x69, i, s, d); } + | 'w'? ws i:imm16-8 ws? ',' ws? s:mem ws? ',' ws? d:r16 { $$ = IMMMEMREG({.w=0}, 0x66, i.imm.nbytes == 1 ? 0x6b : 0x69, i, s, d); } + | 'l'? ws i:imm32-8 ws? ',' ws? s:mem ws? ',' ws? d:r32 { $$ = IMMMEMREG({.w=0}, -1, i.imm.nbytes == 1 ? 0x6b : 0x69, i, s, d); } + | 'q'? ws i:imm32-8 ws? ',' ws? s:mem ws? ',' ws? d:r64 { $$ = IMMMEMREG({.w=1}, -1, i.imm.nbytes == 1 ? 0x6b : 0x69, i, s, d); } # Must come last due to peg ordering. | 'b' ws a:mem { $$ = OPMEM({.w=0}, -1, 0xf6, 0x05, a); } |