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Applerm-II
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Implement op -0xde

This commit is contained in:
Takashi Toyoshima 2014-12-07 02:03:38 +09:00
parent 677b893b40
commit 8301b1e97e
1 changed files with 41 additions and 28 deletions
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6502.S
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@ -581,6 +581,14 @@ opc3:
opc7:
opcb:
opcf:
opd2:
opd3:
opd4:
opd7:
opda:
opdb:
opdc:
opdf:
_nop
_decode
@ -1262,37 +1270,42 @@ opd0: // BNE (Z==0)
1:
_decode
opd1:
b quit
opd2:
b quit
opd3:
b quit
opd4:
b quit
opd5:
b quit
opd6:
b quit
opd7:
b quit
opd1: // CMP - (Indirect), Y
_fromIndirectIndex
_cp RA
_decode
opd5: // CMP - Zero Page, X
_fromZeroIndex RX
_cp RA
_decode
opd6: // DEC - Zero Page, X
_fromZeroIndex RX
_dec
_toAddr
_decode
opd8: // CLD
_clx FLAG_D
_decode
opd9:
b quit
opda:
b quit
opdb:
b quit
opdc:
b quit
opdd:
b quit
opde:
b quit
opdf:
b quit
opd9: // CMP - Absolute, Y
_fromAbsoluteIndexed RY
_cp RA
_decode
opdd: // CMP - Absolute, X
_fromAbsoluteIndexed RX
_cp RA
_decode
opde: // DEC - Absolute, X
_fromAbsoluteIndexed RX
_dec
_toAddr
_decode
ope0:
b quit
ope1: