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VDU19 checks for GS before calling SHR. VDU20 implemented.

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Bobbi Webber-Manners 2022-12-28 02:51:40 -05:00
parent 06d1c6b4d3
commit d88408b537
2 changed files with 10 additions and 5 deletions
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applecorn.po
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15
auxmem.vdu.s
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@ -889,10 +889,13 @@ VDU16 BIT VDUSCREEN
****************
* VDU 20 - Reset to default colours
VDU20
BIT VDUBANK ; Check if GS
BPL :S1 ; If not, skip SHR call
JSR SHRDEFPAL ; Default palette
* THE FOLLOWING TWO LINES ARE FOR GS ONLY & NOT SAFE ON //c
* LDA #$F0
* STA TBCOLOR ; Set text palette
LDX #VDUCOLEND-TXTFGD
:S1 LDX #VDUCOLEND-TXTFGD
LDA #$00
VDU20LP STA TXTFGD,X ; Clear all colours
DEX ; and gcol actions
@ -961,9 +964,10 @@ VDU19 LDA VDUQ+5 ; Second parm
LDA VDUQ+5 ; Second parm (physcol)
ASL ; Double it
TAY ; Phys colour in X
* TODO: Only call this if GS ...
BIT VDUBANK ; Check if GS
BPL :S1 ; If not, skip SHR call
JSR SHRPALCHANGE
RTS
:S1 RTS
:RGB LDA VDUQ+6 ; 3rd parm (red)
AND #$0F
TAY ; Red in Y
@ -980,9 +984,10 @@ VDU19 LDA VDUQ+5 ; Second parm
LDA VDUQ+8 ; 5th parm (blue)
AND #$0F
ORA :TMP ; Green+Blue in A
* TODO: Only call this if GS ...
BIT VDUBANK ; Check if GS
BPL :S2 ; If not, skip SHR call
JSR SHRPALCUSTOM
RTS
:S2 RTS
:TMP DB $00