notwa/lips
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add remaining instructions

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Connor Olding 2015-11-25 10:28:55 -08:00
parent b89c92087f
commit 14f44f8206
2 changed files with 10 additions and 11 deletions
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3
README.md
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@ -29,7 +29,8 @@ First-time writers of MIPS assembly may find this the most useful.
### Unimplemented
* BC1F, BC1FL, BC1T, BC1TL
As far as I know, all native R4300i instructions have been implemented.
Whether or not they output the proper machine code is another thing.
### Unimplemented Pseudo-Instructions

18
lips.lua
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@ -339,8 +339,10 @@ local instructions = {
ROUND_W_S={17, 'DS', 'F0SDC', 12, fmt_single},
SQRT_D = {17, 'DS', 'F0SDC', 4, fmt_double},
SQRT_S = {17, 'DS', 'F0SDC', 4, fmt_single},
TRUNC_L_D={17, 'DS', 'F0SDC', 9, fmt_double},
TRUNC_L_S={17, 'DS', 'F0SDC', 9, fmt_single},
TRUNC_W_D={17, 'DS', 'F0SDC', 13, fmt_double},
TRUNC_W_S={17, 'DS', 'F0SDC', 13, fmt_double},
TEQI = {1, 'si', 'sCi', 12},
TGEI = {1, 'si', 'sCi', 8},
@ -359,15 +361,11 @@ local instructions = {
TLBWI = {16, '', 'F000C', 2, 16},
TLBWR = {16, '', 'F000C', 6, 16},
-- 'c' is unimplemented
--BC1F = {17, 'co', 'Cco', 8, 0},
--BC1FL = {17, 'co', 'Cco', 8, 2},
--BC1T = {17, 'co', 'Cco', 8, 1},
--BC1TL = {17, 'co', 'Cco', 8, 3},
BC1F = {},
BC1FL = {},
BC1T = {},
BC1TL = {},
-- only one condition code on the R4300i?
BC1F = {17, 'r', 'FCo', 0, 8},
BC1FL = {17, 'r', 'FCo', 2, 8},
BC1T = {17, 'r', 'FCo', 1, 8},
BC1TL = {17, 'r', 'FCo', 3, 8},
-- pseudo-instructions
B = {4, 'r', '00o'},
@ -377,7 +375,7 @@ local instructions = {
MOVE = {0, 'dt', '0td0C', 32},
NEG = {0, 'ds', 's0d0C', 34},
NOP = {0, '', '0'},
NOR = {0, 'dst', 's0d0C', 39},
NOT = {0, 'ds', 's0d0C', 39},
SUBI = {8, 'tsk', 'sti'},
SUBIU = {9, 'tsk', 'sti'},