projects:sprite_clock
Sprite Clock
Download: spriteclock.zip
Simple IRQ clock for C64 that uses sprite objects for presentation.
;SPRITE IRQ CLOCK (C) M.K. HOMEBREW COMPUTERS INC. ; Code below compiles with CC65 assembler: ; cl65 --verbose --listing spriteclock.asm ; Use HEX editor to insert "00 C0" at the beginning ; of the executable to be able to run it on C64 or ; in emulator. ; Usage: ; LOAD"SPRITECLOCK",8,1 ; CLR:NEW ; SYS49152,"HHMMSS" ; Where: ; HH - hours, MM - minutes, SS - seconds ; Turn clock off: ; SYS49152 ; Clock works in IRQ interrupt. Presentation is made ; with sprites (clock digits are mapped to sprite ; objects and displayed on screen). It is possible ; to use C64 while this clock works. Oddly enough, ; this clock seems to be interfering with I/O while ; running on real HW (unable to use disk drive or ; tape, will hung) but works fine in emulator. ; My C64 is the C (european) version (in C128 like ; case), that I use in USA using voltage converter. ; If you find the bug, please let me know! ; My contact: makarcz@yahoo.com VIC = 53248 ;VIC Base WSKSP0 = 2040 ;PTR. SPRITE 0 WSKSP1 = 2041 ;PTR. SPRITE 1 WSKSP2 = 2042 ;PTR. SPRITE 2 BLOK13 = 832 ;PTR. BEG. OF BLOCK 13 BLOK14 = 896 ;PTR. BEG. OF BLOCK 14 BLOK15 = 960 ;SEE ABOVE - BLOCK 15 IRQWKT = 788 ;IRQ VECT. POBZNA = 121 ;READ CURR. BYTE PRZECT = $AEFD ;CHECK COMMA ANAWYR = 44446 ;PARSE EXPR. POBTXT = 46978 ;GET STRING .ORG $C000 JMP STEROW LICZNIK: .BYTE 60 ;COUNTER WZORCE: .BYTE 2,3,5,9,5,9 ;TEMPLATES CZAS: .BYTE 1,2,0,0,0,0 ;TIME LICZPOZ: .BYTE 1 ;POS. COUNTER CYF0: .BYTE 0,252,204,204 ;DIGIT 0 .BYTE 204,204,204,252 CYF1: .BYTE 0,12,12,12 ;DIGIT 1 .BYTE 12,12,12,12 CYF2: .BYTE 0,252,12,12 ;DIGIT 2, etc... .BYTE 252,192,192,252 CYF3: .BYTE 0,252,12,12 .BYTE 60,12,12,252 CYF4: .BYTE 0,204,204,204 .BYTE 252,12,12,12 CYF5: .BYTE 0,252,192,252 .BYTE 12,12,12,252 CYF6: .BYTE 0,252,192,192 .BYTE 252,204,204,252 CYF7: .BYTE 0,252,12,24 .BYTE 48,96,192,192 CYF8: .BYTE 0,252,204,204 .BYTE 252,204,204,252 CYF9: .BYTE 0,252,204,204 .BYTE 252,12,12,252 DWUKR: .BYTE 0,0,48,48 ;COLON .BYTE 0,48,48,0 COPY: LDX #$00 LDY #$00 LOOP1: LDA CYF0,X BLKNR: STA BLOK13,Y CPX #7 BEQ POZ INY INY INY INX JMP LOOP1 POZ: RTS IRQROM: JMP $EA31 MAIN: DEC LICZNIK BNE IRQROM LDA #60 STA LICZNIK LDA CZAS LDX #3 CMP #2 BEQ NOC LDX #9 NOC: STX WZORCE+1 LDX #5 NXTCYF: LDA CZAS,X INC CZAS,X CMP WZORCE,X BNE KOP1 LDA #$00 STA CZAS,X DEX BPL NXTCYF KOP1: LDA #$00 STA LICZPOZ LDX #<CZAS LDY #>CZAS STX KOPIUJ+1 STY KOPIUJ+3 LDX #<BLOK13 LDY #>BLOK13 STX POS0B+1 STY POS0C+1 KOPIUJ: LDX #<CZAS LDY #>CZAS STX POS0+1 STY POS0+2 POS0: LDA CZAS CMP #$00 BNE NIE00 LDX #<CYF0 LDY #>CYF0 POS0A: STX LOOP1+1 STY LOOP1+2 POS0B: LDX #<BLOK13 POS0C: LDY #>BLOK13 STX BLKNR+1 STY BLKNR+2 JSR COPY JMP POS1 NIE00: CMP #$01 BNE NIE01 LDX #<CYF1 LDY #>CYF1 JMP POS0A NIE01: CMP #$02 BNE NIE02 LDX #<CYF2 LDY #>CYF2 JMP POS0A NIE02: CMP #$03 BNE NIE03 LDX #<CYF3 LDY #>CYF3 JMP POS0A NIE03: CMP #$04 BNE NIE04 LDX #<CYF4 LDY #>CYF4 JMP POS0A NIE04: CMP #$05 BNE NIE05 LDX #<CYF5 LDY #>CYF5 JMP POS0A NIE05: CMP #$06 BNE NIE06 LDX #<CYF6 LDY #>CYF6 JMP POS0A NIE06: CMP #$07 BNE NIE07 LDX #<CYF7 LDY #>CYF7 JMP POS0A NIE07: CMP #$08 BNE NIE08 LDX #<CYF8 LDY #>CYF8 JMP POS0A NIE08: LDX #<CYF9 LDY #>CYF9 JMP POS0A POS1: INC KOPIUJ+1 LDA KOPIUJ+1 CMP #$00 BNE POS1A INC KOPIUJ+3 POS1A: INC LICZPOZ LDA LICZPOZ CMP #1 BNE POS1B LDX #<(BLOK13+1) LDY #>(BLOK13+1) POS1A1: STX POS0B+1 STY POS0C+1 JMP KOPIUJ POS1B: CMP #2 BNE POS1C LDX #<BLOK14 LDY #>BLOK14 JMP POS1A1 POS1C: CMP #3 BNE POS1D LDX #<(BLOK14+1) LDY #>(BLOK14+1) JMP POS1A1 POS1D: CMP #4 BNE POS1E LDX #<BLOK15 LDY #>BLOK15 JMP POS1A1 POS1E: CMP #5 BNE POS1F LDX #<(BLOK15+1) LDY #>(BLOK15+1) JMP POS1A1 POS1F: JMP $EA31 START: LDX #$00 LDA #$00 STLOOP: STA BLOK13,X STA BLOK14,X STA BLOK15,X INX CPX #63 BEQ ST1 JMP STLOOP ST1: LDX #$00 LDY #$00 ST1LOOP: LDA DWUKR,X STA BLOK13+2,Y STA BLOK14+2,Y INX CPX #8 BEQ ST2 INY INY INY JMP ST1LOOP ST2: LDX #13 STX WSKSP0 INX STX WSKSP1 INX STX WSKSP2 KOLOR: LDA #13 STA VIC+39 STA VIC+40 STA VIC+41 LDA #%00000110 STA VIC+16 LDA #215 LDX #50 STA VIC STX VIC+1 LDA #7 STA VIC+2 STX VIC+3 ADC #48 STA VIC+4 STX VIC+5 LDA #%00000111 STA VIC+23 STA VIC+29 STA VIC+27 STA VIC+21 LDX #<MAIN LDY #>MAIN SEI STX IRQWKT STY IRQWKT+1 CLI RTS STEROW: JSR POBZNA BEQ WYLACZ JSR PRZECT JSR ANAWYR ROL 13 BCS NASTAW ILLQUA: JMP 47000 NASTAW: JSR POBTXT CMP #6 BNE ILLQUA LDY #5 SEI NASTPE: LDA (34),Y SEC SBC #48 STA CZAS,Y DEY BPL NASTPE LDA #60 STA LICZNIK CLI JMP START WYLACZ: LDX #$31 LDY #$EA SEI STX IRQWKT STY IRQWKT+1 CLI LDA #$00 STA VIC+21 RTS
projects/sprite_clock.txt · Last modified: 2015-04-17 04:35 by 127.0.0.1