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author | Roberto Ierusalimschy <roberto@inf.puc-rio.br> | 2019-09-10 13:20:03 -0300 |
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committer | Roberto Ierusalimschy <roberto@inf.puc-rio.br> | 2019-09-10 13:20:03 -0300 |
commit | 91dad09f65984048ae43c8894d18acb785c7092b (patch) | |
tree | ea6c23c54d8659677da6259047ddd0c8e0b7e643 /lopcodes.c | |
parent | 4518e5df24600cacdb3bab75d640348d28e8b769 (diff) | |
download | lua-91dad09f65984048ae43c8894d18acb785c7092b.tar.gz lua-91dad09f65984048ae43c8894d18acb785c7092b.tar.bz2 lua-91dad09f65984048ae43c8894d18acb785c7092b.zip |
Removed arithmetic opcodes with immediate operand
The difference in performance between immediate operands and K operands
does not seem to justify all those extra opcodes. We only keep OP_ADDI,
due to its ubiquity and because the difference is a little more relevant.
(Later, OP_SUBI will be implemented by OP_ADDI, negating the constant.)
Diffstat (limited to '')
-rw-r--r-- | lopcodes.c | 6 |
1 files changed, 0 insertions, 6 deletions
@@ -39,12 +39,6 @@ LUAI_DDEF const lu_byte luaP_opmodes[NUM_OPCODES] = { | |||
39 | ,opmode(0, 0, 0, 0, 1, iABC) /* OP_NEWTABLE */ | 39 | ,opmode(0, 0, 0, 0, 1, iABC) /* OP_NEWTABLE */ |
40 | ,opmode(0, 0, 0, 0, 1, iABC) /* OP_SELF */ | 40 | ,opmode(0, 0, 0, 0, 1, iABC) /* OP_SELF */ |
41 | ,opmode(0, 0, 0, 0, 1, iABC) /* OP_ADDI */ | 41 | ,opmode(0, 0, 0, 0, 1, iABC) /* OP_ADDI */ |
42 | ,opmode(0, 0, 0, 0, 1, iABC) /* OP_SUBI */ | ||
43 | ,opmode(0, 0, 0, 0, 1, iABC) /* OP_MULI */ | ||
44 | ,opmode(0, 0, 0, 0, 1, iABC) /* OP_MODI */ | ||
45 | ,opmode(0, 0, 0, 0, 1, iABC) /* OP_POWI */ | ||
46 | ,opmode(0, 0, 0, 0, 1, iABC) /* OP_DIVI */ | ||
47 | ,opmode(0, 0, 0, 0, 1, iABC) /* OP_IDIVI */ | ||
48 | ,opmode(0, 0, 0, 0, 1, iABC) /* OP_ADDK */ | 42 | ,opmode(0, 0, 0, 0, 1, iABC) /* OP_ADDK */ |
49 | ,opmode(0, 0, 0, 0, 1, iABC) /* OP_SUBK */ | 43 | ,opmode(0, 0, 0, 0, 1, iABC) /* OP_SUBK */ |
50 | ,opmode(0, 0, 0, 0, 1, iABC) /* OP_MULK */ | 44 | ,opmode(0, 0, 0, 0, 1, iABC) /* OP_MULK */ |