Apple-2-SW/apple2_hgr_font_tutorial
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Fixed missing assembly markup

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michaelangel007 2016-01-09 12:54:44 -08:00
parent a6710a26d4
commit 7e60ae34f1
1 changed files with 4 additions and 0 deletions
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@ -1047,6 +1047,7 @@ And change the low byte to add `X` instead:
This is a little clunky but it is progress. Let's write the new CursorColRow() version with the CursorRow() inlined so we don't have to use a JSR.
```assembly
; FUNC: CursorColRow3( col, row ) = $0379
; PARAM: X = column to draw at; $0 .. $27 (Columns 0 .. 39) (not modified)
; PARAM: Y = row to draw at; $0 .. $17 (Rows 0 .. 23) (not modified)
@ -1063,6 +1064,7 @@ This is a little clunky but it is progress. Let's write the new CursorColRow() v
389:65 E6 ADC $E6
38B:85 F6 STA $F6
38D:60 RTS
```
Enter in:
@ -1522,11 +1524,13 @@ Enter this:
And let's write a little demo ...
```assembly
1380:A0 C0 LDY #C0
1382:20 00 14 .1 JSR ScrollHgrUpPixel
1385:88 DEY
1386:D0 FA BNE .1
1388:60 RTS
```
And let's try it out: