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https://github.com/bobbimanners/Applecorn.git
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SHR cursor now working in MODE 0 too
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applecorn.po
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applecorn.po
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18
auxmem.shr.s
18
auxmem.shr.s
@ -159,6 +159,16 @@ SHRPRCHAR CMP CURSORED ; Edit cursor?
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* Plot or unplot a cursor on SHR screen
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* Plot or unplot a cursor on SHR screen
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SHRCURSOR PHA ; Preserve character
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SHRCURSOR PHA ; Preserve character
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LDA VDUPIXELS ; Pixels per byte
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CMP #$02 ; 2 is 320-mode (MODE 1)
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BNE :MODE0
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LDA #$04 ; 4 bytes in 320 mode
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LDX #$77 ; Two white pixels
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BRA :S1
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:MODE0 LDA #$02 ; 2 bytes in 640 mode
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LDX #$FF ; Two white pixels
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:S1 STA :BYTES ; Bytes per char
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STX :WHITE
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LDA VDUSTATUS ; If VDU5 mode, bail
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LDA VDUSTATUS ; If VDU5 mode, bail
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AND #$20
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AND #$20
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BNE :BAIL
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BNE :BAIL
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@ -182,21 +192,23 @@ SHRCURSOR PHA ; Preserve character
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BEQ :CURSORON
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BEQ :CURSORON
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BRA :CURSOROFF
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BRA :CURSOROFF
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:CURSORON
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:CURSORON
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:L1 LDA #$77
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:L1 LDA :WHITE
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STAL [VDUADDR],Y
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STAL [VDUADDR],Y
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INY
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INY
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CPY #$04 ; TODO: Two bytes for 640 mode
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CPY :BYTES
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BNE :L1
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BNE :L1
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RTS
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RTS
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:CURSOROFF
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:CURSOROFF
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:L2 LDA SHRBGMASKA
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:L2 LDA SHRBGMASKA
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STAL [VDUADDR],Y
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STAL [VDUADDR],Y
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INY
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INY
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CPY #$04 ; TODO: Two bytes for 640 mode
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CPY :BYTES
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BNE :L2
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BNE :L2
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:DONE RTS
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:DONE RTS
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:BAIL PLA
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:BAIL PLA
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RTS
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RTS
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:BYTES DB $00 ; 2 for 640-mode, 4 for 320-mode
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:WHITE DB $00 ; White pixels for mode
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* Write character to SHR screen in 320 pixel mode
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* Write character to SHR screen in 320 pixel mode
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