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add more instructions

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Connor Olding 2015-11-25 03:04:55 -08:00
parent 9ccf2fd883
commit 03cb168ad0
1 changed files with 15 additions and 8 deletions
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23
lips.lua
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@ -108,9 +108,9 @@ local instructions = {
D: floating point register for fd D: floating point register for fd
S: floating point register for fs S: floating point register for fs
T: floating point register for ft T: floating point register for ft
o: constant for offset (uses lower halfword) o: constant for offset
b: register to dereference for base b: register to dereference for base
r: relative constant or label (uses lower halfword) r: relative constant or label for offset
i: immediate (must fit in a halfword) i: immediate (must fit in a halfword)
I: constant or label for index (long jump) I: constant or label for index (long jump)
j: (unused) immediate (uses lower halfword) j: (unused) immediate (uses lower halfword)
@ -349,14 +349,21 @@ local instructions = {
TLTIU = {1, 'si', 'sCi', 11}, TLTIU = {1, 'si', 'sCi', 11},
TNEI = {1, 'si', 'sCi', 14}, TNEI = {1, 'si', 'sCi', 14},
CACHE = {}, -- immediate limited to 3 bits?
ERET = {}, CACHE = {47, 'iob', 'bio'},
TLBP = {}, -- misuses 'F' to write the initial bit
TLBR = {}, ERET = {16, '', 'F000C', 24, 16},
TLBWI = {}, TLBP = {16, '', 'F000C', 8, 16},
TLBWR = {}, TLBR = {16, '', 'F000C', 1, 16},
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 = {}, BC1F = {},
BC1FL = {}, BC1FL = {},
BC1T = {}, BC1T = {},