Apple-2-SW/apple2_hgr_font_tutorial
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Fixup missed SBC #1C

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michaelangel007 2016-01-13 22:16:44 -08:00
parent 2d1ca64b92
commit 1f21fc4d55
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@ -1973,8 +1973,8 @@ But we'll save a byte and use the normal subtraction instead:
```assembly
LDA HgrHiY, Y ; Y is row
CLC ; Convert HgrHiY to TextHiY byte
SBC #$1B ; A -= 0x1C
SEC ; Convert HgrHiY to TextHiY byte
SBC #$1C ; A -= 0x1C
```
If we care about absolute speed we could see which one takes the fewer clock cycles.