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Fixed ROR - setting carry from wrong bit.

This commit is contained in:
Andrew Jacobs 2018-10-11 11:49:36 +01:00
parent a0bf1ecd6b
commit 41b33a9250
1 changed files with 4 additions and 4 deletions
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8
emu816.h
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@ -1384,7 +1384,7 @@ private:
register Byte data = getByte(ea);
register Byte carry = p.f_c ? 0x80 : 0x00;
setc(data & 0x80);
setc(data & 0x01);
setnz_b(data = (data >> 1) | carry);
setByte(ea, data);
cycles += 4;
@ -1393,7 +1393,7 @@ private:
register Word data = getWord(ea);
register Word carry = p.f_c ? 0x8000 : 0x0000;
setc(data & 0x8000);
setc(data & 0x0001);
setnz_w(data = (data >> 1) | carry);
setWord(ea, data);
cycles += 5;
@ -1407,14 +1407,14 @@ private:
if (e || p.f_m) {
register Byte carry = p.f_c ? 0x80 : 0x00;
setc(a.b & 0x80);
setc(a.b & 0x01);
setnz_b(a.b = (a.b >> 1) | carry);
setByte(ea, a.b);
}
else {
register Word carry = p.f_c ? 0x8000 : 0x0000;
setc(a.w & 0x8000);
setc(a.w & 0x0001);
setnz_w(a.w = (a.w >> 1) | carry);
setWord(ea, a.w);
}