Apple-2gs-SW/iigs-game-engine
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Init SHR before drawing to make sure linearization is on

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This commit is contained in:
Lucas Scharenbroich 2023-06-20 07:41:10 -05:00
parent 7b521c8473
commit df18dd7570
1 changed files with 14 additions and 8 deletions
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20
demos/smb/apu_sim.s
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@ -12,6 +12,7 @@ RIGHT_ARROW equ $15
UP_ARROW equ $0B
DOWN_ARROW equ $0A
SHADOW_REG equ $E0C035
KBD_REG equ $E0C000
KBD_STROBE_REG equ $E0C010
VBL_STATE_REG equ $E0C019
@ -330,15 +331,25 @@ _ReadControl pea $0000 ; low byte = key code, high byte
:KbdNotDwn
stz LastKey
:KbdDown
ldal KBD_REG
rep #$20
pla
rts
mx %00
InitGraphics
sep #$20
lda #$C1
stal $E0C029 ; screen on
ldal SHADOW_REG ; shadow on
and #$F7
stal SHADOW_REG
rep #$20
lda #0
ldx #0
:scbloop stal $E12000,x
:scbloop stal $012000,x
inx
inx
cpx #$7E00
@ -346,16 +357,11 @@ InitGraphics
ldx #0
:palloop lda DefaultPalette,x
stal $E19E00,x
stal $019E00,x
inx
inx
cpx #$20
bcc :palloop
sep #$20
lda #$C1
stal $E0C029
rep #$20
rts
DefaultPalette ENT