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Implement op -0x5f

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This commit is contained in:
Takashi Toyoshima 2014-12-06 23:14:21 +09:00
parent 4c3a822893
commit 8e22cfe6cf
1 changed files with 49 additions and 30 deletions
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6502.S
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@ -444,6 +444,14 @@ op44:
op47:
op4b:
op4f:
op52:
op53:
op54:
op57:
op5a:
op5b:
op5c:
op5f:
_nop
_decode
@ -704,39 +712,50 @@ op4e: // LSR - Absolute
_toAddr
_decode
op50:
b quit
op51:
b quit
op52:
b quit
op53:
b quit
op54:
b quit
op55:
b quit
op56:
b quit
op57:
b quit
op50: // BVC (V==0)
movs r0, #FLAG_V
tst SR, r0
bne 1f
_bxx
1:
_decode
op51: // EOR - (Indirect), Y
_fromIndirectIndex
_lop eors
_decode
op55: // EOR - Zero Page, X
_fromZeroIndex RX
_lop eors
_decode
op56: // LSR - Zero Page, X
_fromZeroIndex RX
_lsr
_toAddr
_decode
op58: // CLI
_clx FLAG_I
_decode
op59:
b quit
op5a:
b quit
op5b:
b quit
op5c:
b quit
op5d:
b quit
op5e:
b quit
op5f:
b quit
op59: // EOR - Absolute, Y
_fromAbsoluteIndexed RY
_lop eors
_decode
op5d: // EOR - Absolute, X
_fromAbsoluteIndexed RX
_lop eors
_decode
op5e: // LSR - Absolute, X
_fromAbsoluteIndexed RX
_lsr
_toAddr
_decode
op60:
b quit
op61: