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Cleanup label apple_iiplus placement

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Michaelangel007 2017-07-19 11:28:36 -07:00
parent 2b81d9da6e
commit 2387ad4b8d
1 changed files with 4 additions and 7 deletions
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11
linuxlogo.s
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@ -68,17 +68,17 @@ detect_model
cmp #$38 ; '8'
beq apple_ii
apple_iiplus
pha
jsr AS_HGR ; HGR on Apple ][+ or newer
pla
cmp #$EA ; 'j' apple ][+?
bne apple_iie_iic ; if so keep going
apple_iiplus
; if we get here we're a ii+ or iii in emulation mode
lda #"+"
bne set_apple_ii
; if we get here we're a ii+ or iii in emulation mode
apple_ii
jsr IB_HGR ; HGR on original ][ only!
lda #" " ; "_6502"
@ -255,7 +255,6 @@ ModelPlus
; Expand 1 pixel (2 bits) via
; Output 2 pixels (4 bits)
Unpack2Bits
sty zSrcOffset
lda zUnpackBits ; Double the pixel
@ -286,10 +285,8 @@ MakeShiftMask
adc #4 ; C=0 from ASL ROR above
cmp #7 ; all bits fit into dest byte?
bcc FitSameByte
; Update partial next byte of dest
; x = x + 4 - 7
; x = x - 3
; Update partial next byte of dest
; x = x + 4 - 7
sbc #7 ; C=1 from "BCC else" above
tay ; push zDstShift