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| author | David Phillips <david@sighup.nz> | 2019-04-14 20:05:44 +1200 |
|---|---|---|
| committer | David Phillips <david@sighup.nz> | 2019-08-03 12:43:46 +1200 |
| commit | 3bf3b2a80ef21ac1ac2e43d07b1680432d66cbaf (patch) | |
| tree | e4c3a4ce3d9646f9d78282a0cf8bb4a4cce2575d /instruction.h | |
| parent | e5eeded02a4abe2729e675203437c79d9ee71a7a (diff) | |
| download | toy-cpu-assembler-3bf3b2a80ef21ac1ac2e43d07b1680432d66cbaf.tar.xz | |
Remove superfluous printfs, factor reg table lookup
Diffstat (limited to 'instruction.h')
| -rw-r--r-- | instruction.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/instruction.h b/instruction.h index 7e1a490..323a66b 100644 --- a/instruction.h +++ b/instruction.h @@ -22,6 +22,13 @@ enum INST_TYPE { #define MASK_INST_WITYPE (0x8000) #define MASK_INST_JTYPE (0xC000) +#define RTYPE_SIZE_BYTES 2 /* instruction fits in 16 bits */ +#define NITYPE_SIZE_BYTES 2 /* instruction fits in 16 bits */ +#define BTYPE_SIZE_BYTES 2 /* instruction fits in 16 bits */ +#define JRTYPE_SIZE_BYTES 2 /* instruction fits in 16 bits */ +#define WITYPE_SIZE_BYTES 4 /* 16-bit instruction + 16-bit immediate */ +#define JITYPE_SIZE_BYTES 4 /* 16-bit instruction + 16-bit immediate */ + /** * ALU operation types * R-type and I-type take 3-bit ALU oper as bits: |