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tiny bugfix

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This commit is contained in:
Stephen Crane 2019-02-25 15:39:18 +00:00
parent 857e99c4e0
commit e038a0c792
1 changed files with 10 additions and 21 deletions
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31
z80.cpp
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@ -487,7 +487,6 @@ void z80::ed() {
case 0x4f:
_mc(IR, 1);
R = A;
// FIXME?
break;
case 0x50:
D = _inr(BC);
@ -611,8 +610,7 @@ void z80::ed() {
HL++;
b += A;
flags.P = (BC != 0);
flags._3 = (b & 0x08) != 0;
flags._5 = (b & 0x02) != 0;
_35(b);
flags.N = flags.H = 0;
break;
case 0xa1:
@ -629,8 +627,7 @@ void z80::ed() {
if (flags.H) b--;
flags.C = f;
flags.P = (BC != 0);
flags._3 = (b & 0x08) != 0;
flags._5 = (b & 0x02) != 0;
_35(b);
break;
case 0xa2:
_mc(IR, 1);
@ -666,8 +663,7 @@ void z80::ed() {
HL--;
b += A;
flags.P = (BC != 0);
flags._3 = (b & 0x08) != 0;
flags._5 = (b & 0x02) != 0;
_35(b);
flags.N = flags.H = 0;
break;
case 0xa9:
@ -679,11 +675,8 @@ void z80::ed() {
BC--;
flags.N = 1;
flags.P = (BC != 0);
flags.Z = (c == 0);
flags.S = (c & 0x80) != 0;
flags._3 = (c & 0x08) != 0;
flags._5 = (c & 0x02) != 0;
// FIXME: flags 3, 5, H
_sz35(c);
// FIXME: flag H
break;
case 0xaa:
_mc(IR, 1);
@ -717,8 +710,7 @@ void z80::ed() {
_mc(DE, 1);
b += A;
flags.P = (BC != 0);
flags._3 = (b & 0x08) != 0;
flags._5 = (b & 0x02) != 0;
_35(b);
flags.N = flags.H = 0;
if (BC) {
_mc(DE, 1); _mc(DE, 1); _mc(DE, 1);
@ -741,8 +733,7 @@ void z80::ed() {
flags.C = f;
flags.P = (BC != 0);
if (flags.H) b--;
flags._3 = (b & 0x08) != 0;
flags._5 = (b & 0x02) != 0;
_35(b);
if (!flags.Z) {
_mc(HL, 1); _mc(HL, 1); _mc(HL, 1);
_mc(HL, 1); _mc(HL, 1);
@ -792,8 +783,7 @@ void z80::ed() {
_mc(DE, 1);
b += A;
flags.P = (BC != 0);
flags._3 = (b & 0x08) != 0;
flags._5 = (b & 0x02) != 0;
_35(b);
flags.N = flags.H = 0;
if (BC) {
_mc(DE, 1); _mc(DE, 1); _mc(DE, 1);
@ -811,9 +801,8 @@ void z80::ed() {
BC--;
flags.N = 1;
flags.P = (BC != 0);
flags.Z = (c == 0);
flags.S = (c & 0x80) != 0;
// FIXME: flags 3, 5, H
_sz35(c);
// FIXME: flag H
if (BC) {
_mc(HL, 1); _mc(HL, 1); _mc(HL, 1);
_mc(HL, 1); _mc(HL, 1);