diff options
Diffstat (limited to 'asm.peg')
| -rw-r--r-- | asm.peg | 30 |
1 files changed, 18 insertions, 12 deletions
@@ -29,26 +29,32 @@ label = { $$.label = (Label){.kind = ASM_LABEL, .name = i.ident.name}; } instr = - "nop" { $$.kind = ASM_NOP; } + "nop" { $$.kind = ASM_NOP; } | "leave" { $$.kind = ASM_LEAVE; } - | "ret" { $$.kind = ASM_RET; } - | i:xchg { $$ = i; } - | i:add { $$ = i; } - | i:and { $$ = i; } - | i:lea { $$ = i; } - | i:mov { $$ = i; } - | i:or { $$ = i; } - | i:sub { $$ = i; } - | i:xor { $$ = i; } + | "ret" { $$.kind = ASM_RET; } + | i:jmp { $$ = i; } + | i:xchg { $$ = i; } + | i:add { $$ = i; } + | i:and { $$ = i; } + | i:lea { $$ = i; } + | i:mov { $$ = i; } + | i:or { $$ = i; } + | i:sub { $$ = i; } + | i:xor { $$ = i; } + + +jmp = + "jmp" ws t:ident + { $$.jmp = (Jmp){ .kind = ASM_JMP, .target=t.ident.name } ; } lea = - 'lea' ( + "lea" ( 'w'? ws s:m ws? ',' ws? d:r16 { $$ = INSTR(0, s, d); } | 'l'? ws s:m ws? ',' ws? d:r32 { $$ = INSTR(1, s, d); } | 'q'? ws s:m ws? ',' ws? d:r64 { $$ = INSTR(2, s, d); } ) { $$.instr.kind = ASM_LEA; } -#XXX Some other these rules can probably be collapsed. +#XXX Some of these rules can probably be collapsed (or expanded for simplicity?). mov = "mov" ( 'b'? ws s:imm8 ws? ',' ws? d:r8 { $$ = INSTR(0, s, d); } |