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z80: fixed bug in "add iy,sp"

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This commit is contained in:
Steven Hugg 2022-07-13 13:23:18 -05:00
parent e69a5d433d
commit 3766576bae
1 changed files with 1 additions and 1 deletions
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2
src/common/cpu/ZilogZ80.ts
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@ -1125,7 +1125,7 @@ let do_ix_add = function(operand)
flags.H = (((ix & 0xfff) + (operand & 0xfff)) & 0x1000) ? 1 : 0; flags.H = (((ix & 0xfff) + (operand & 0xfff)) & 0x1000) ? 1 : 0;
update_xy_flags((result & 0xff00) >>> 8); update_xy_flags((result & 0xff00) >>> 8);
ix = result; ix = result & 0xffff;
}; };