Apple-2-SW/Applecorn
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Back to new WRTMAIN/WRTAUX. Fixed //e bug that prevented this.

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Bobbi Webber-Manners 2022-09-24 14:50:30 -04:00
parent 6609426f8a
commit 216ba57305
3 changed files with 8 additions and 7 deletions
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BIN
applecorn.po
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5
applecorn.s
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@ -149,7 +149,7 @@ IENTMAIN MAC
* Enable writing to main memory (for code running in aux)
WRTMAIN MAC
* PHP
PHP
SEI ; Keeps IRQ handler easy
STA $C004 ; Write to main memory
EOM
@ -157,8 +157,7 @@ WRTMAIN MAC
* Go back to writing to aux (for code running in aux)
WRTAUX MAC
STA $C005 ; Write to aux memory
CLI
* PLP ; Normal service resumed
PLP ; Normal service resumed
EOM
* Manually enable AltZP (for code running in main)

10
auxmem.vdu.s
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@ -364,12 +364,14 @@ PRCHR4 JSR CHARADDR ; Find character address
>>> WRTMAIN
STA [VDUADDR],Y
>>> WRTAUX
BRA PRCHR8
BRA PRCHR7
PRCHR5 BCC PRCHR6 ; Aux memory
>>> WRTMAIN
PRCHR6 STA (VDUADDR),Y ; Store it
PRCHR7 >>> WRTAUX
PRCHR8 PLA
STA (VDUADDR),Y ; Store in main
>>> WRTAUX
BRA PRCHR7
PRCHR6 STA (VDUADDR),Y ; Store in aux
PRCHR7 PLA
BIT VDUSCREEN
BPL GETCHROK
JMP PRCHRSOFT ; Write character to graphics