6502/cc65
1
0
Fork 0
mirror of https://github.com/cc65/cc65.git synced 2025-02-23 03:29:00 +00:00
Code Issues Projects Releases Wiki Activity

Disable potentially enabled double-width graphics.

Browse Source
This commit is contained in:
Oliver Schmidt 2020-05-04 22:22:32 +02:00
parent cbf0c1d1dd
commit 5b56c6e3a2
3 changed files with 22 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
asminc/apple2.inc
View File

@ -50,15 +50,21 @@ LCBANK2 := $C083 ; Swap in LC bank 2
LCBANK1 := $C08B ; Swap in LC bank 1 LCBANK1 := $C08B ; Swap in LC bank 1
; Video mode switches ; Video mode switches
TXTCLR := $C050 ; Display graphics TXTCLR := $C050 ; Display graphics
TXTSET := $C051 ; Display text TXTSET := $C051 ; Display text
MIXCLR := $C052 ; Disable 4 lines of text MIXCLR := $C052 ; Disable 4 lines of text
MIXSET := $C053 ; Enable 4 lines of text MIXSET := $C053 ; Enable 4 lines of text
LOWSCR := $C054 ; Page 1 LOWSCR := $C054 ; Page 1
HISCR := $C055 ; Page 2 HISCR := $C055 ; Page 2
LORES := $C056 ; Lores graphics LORES := $C056 ; Lores graphics
HIRES := $C057 ; Hires graphics HIRES := $C057 ; Hires graphics
DHIRESON := $C05E ; Enable double-width graphics
DHIRESOFF := $C05F ; Disable double-width graphics
; Game controller ; Game controller
BUTN0 := $C061 ; Open-Apple Key BUTN0 := $C061 ; Open-Apple Key
BUTN1 := $C062 ; Closed-Apple Key BUTN1 := $C062 ; Closed-Apple Key
; IOU
IOUDISON := $C07E ; Disable IOU
IOUDISOFF := $C07F ; Enable IOU

4
libsrc/apple2/tgi/a2.hi.s
View File

@ -175,6 +175,10 @@ INIT:
; Switch into graphics mode ; Switch into graphics mode
bit MIXCLR bit MIXCLR
bit HIRES bit HIRES
.ifdef __APPLE2ENH__
sta IOUDISON
bit DHIRESOFF
.endif
bit TXTCLR bit TXTCLR
; Beagle Bros Shape Mechanic fonts don't ; Beagle Bros Shape Mechanic fonts don't

4
libsrc/apple2/tgi/a2.lo.s
View File

@ -126,6 +126,10 @@ INIT:
bit $C082 ; Switch in ROM bit $C082 ; Switch in ROM
jsr SETGR jsr SETGR
bit MIXCLR bit MIXCLR
.ifdef __APPLE2ENH__
sta IOUDISON
bit DHIRESOFF
.endif
bit $C080 ; Switch in LC bank 2 for R/O bit $C080 ; Switch in LC bank 2 for R/O
; Done, reset the error code ; Done, reset the error code