6502/r65emu
1
0
Fork 0
mirror of https://github.com/jscrane/r65emu.git synced 2024-12-22 18:29:20 +00:00
Code Issues Projects Releases Wiki Activity

tiny bugfix

Browse Source
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
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

31
z80.cpp
View File

@ -487,7 +487,6 @@ void z80::ed() {
case 0x4f: case 0x4f:
_mc(IR, 1); _mc(IR, 1);
R = A; R = A;
// FIXME?
break; break;
case 0x50: case 0x50:
D = _inr(BC); D = _inr(BC);
@ -611,8 +610,7 @@ void z80::ed() {
HL++; HL++;
b += A; b += A;
flags.P = (BC != 0); flags.P = (BC != 0);
flags._3 = (b & 0x08) != 0; _35(b);
flags._5 = (b & 0x02) != 0;
flags.N = flags.H = 0; flags.N = flags.H = 0;
break; break;
case 0xa1: case 0xa1:
@ -629,8 +627,7 @@ void z80::ed() {
if (flags.H) b--; if (flags.H) b--;
flags.C = f; flags.C = f;
flags.P = (BC != 0); flags.P = (BC != 0);
flags._3 = (b & 0x08) != 0; _35(b);
flags._5 = (b & 0x02) != 0;
break; break;
case 0xa2: case 0xa2:
_mc(IR, 1); _mc(IR, 1);
@ -666,8 +663,7 @@ void z80::ed() {
HL--; HL--;
b += A; b += A;
flags.P = (BC != 0); flags.P = (BC != 0);
flags._3 = (b & 0x08) != 0; _35(b);
flags._5 = (b & 0x02) != 0;
flags.N = flags.H = 0; flags.N = flags.H = 0;
break; break;
case 0xa9: case 0xa9:
@ -679,11 +675,8 @@ void z80::ed() {
BC--; BC--;
flags.N = 1; flags.N = 1;
flags.P = (BC != 0); flags.P = (BC != 0);
flags.Z = (c == 0); _sz35(c);
flags.S = (c & 0x80) != 0; // FIXME: flag H
flags._3 = (c & 0x08) != 0;
flags._5 = (c & 0x02) != 0;
// FIXME: flags 3, 5, H
break; break;
case 0xaa: case 0xaa:
_mc(IR, 1); _mc(IR, 1);
@ -717,8 +710,7 @@ void z80::ed() {
_mc(DE, 1); _mc(DE, 1);
b += A; b += A;
flags.P = (BC != 0); flags.P = (BC != 0);
flags._3 = (b & 0x08) != 0; _35(b);
flags._5 = (b & 0x02) != 0;
flags.N = flags.H = 0; flags.N = flags.H = 0;
if (BC) { if (BC) {
_mc(DE, 1); _mc(DE, 1); _mc(DE, 1); _mc(DE, 1); _mc(DE, 1); _mc(DE, 1);
@ -741,8 +733,7 @@ void z80::ed() {
flags.C = f; flags.C = f;
flags.P = (BC != 0); flags.P = (BC != 0);
if (flags.H) b--; if (flags.H) b--;
flags._3 = (b & 0x08) != 0; _35(b);
flags._5 = (b & 0x02) != 0;
if (!flags.Z) { if (!flags.Z) {
_mc(HL, 1); _mc(HL, 1); _mc(HL, 1); _mc(HL, 1); _mc(HL, 1); _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); _mc(DE, 1);
b += A; b += A;
flags.P = (BC != 0); flags.P = (BC != 0);
flags._3 = (b & 0x08) != 0; _35(b);
flags._5 = (b & 0x02) != 0;
flags.N = flags.H = 0; flags.N = flags.H = 0;
if (BC) { if (BC) {
_mc(DE, 1); _mc(DE, 1); _mc(DE, 1); _mc(DE, 1); _mc(DE, 1); _mc(DE, 1);
@ -811,9 +801,8 @@ void z80::ed() {
BC--; BC--;
flags.N = 1; flags.N = 1;
flags.P = (BC != 0); flags.P = (BC != 0);
flags.Z = (c == 0); _sz35(c);
flags.S = (c & 0x80) != 0; // FIXME: flag H
// FIXME: flags 3, 5, H
if (BC) { if (BC) {
_mc(HL, 1); _mc(HL, 1); _mc(HL, 1); _mc(HL, 1); _mc(HL, 1); _mc(HL, 1);
_mc(HL, 1); _mc(HL, 1); _mc(HL, 1); _mc(HL, 1);