We just released a Feb. 5 '89 prototype of DuckTales for the NES!
If you'd like to support our preservation efforts (and this wasn't cheap), please consider donating or supporting us on Patreon. Thank you!
If you'd like to support our preservation efforts (and this wasn't cheap), please consider donating or supporting us on Patreon. Thank you!
Mole Attack
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| Mole Attack |
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Developer:
HAL Laboratory
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Mole Attack is a historical footnote, in that it is one of the first major whac-a-mole games on computers.
Source Code
Starting around 0xD28 in the cartridge, there's a sizable amount of code.
START SEI CLD LDX #$FF TXS JSR ITINIT ;INIT I/O PORTS CLD SEI LDA #0 STA VIA1+$E LDA #%01111111 ;KILL INTERRUPTS STA VIA2+$E LDA #%00000000 STA VIA1+$B STA VIA2+$B LDA #%11111111 STA VIA2+2 LDA #%10000000 STA VIA1+3 LDX #0 STX VIA1+4 INX STX VIA1+5 LDA VIA1+$C AND #%00111111 STA VIA1+$C ; LDX #15 ;INIT VIC VICILP LDA VICTBL,X STA VIC,X DEX ) BPL VICILP ; LDX #0 ;INIT ZERO PAGE TXA ZPINIT STA 0,X DEX BNE ZPINIT ; LDX #0 ;INIT CHARACTERS CHINIT LDA CHRTBL,X STA CHAR,X LDA CHRTBL+$100,X STA CHAR+$100,X LDA CHRTBL+$200,X STA CHAR+$200,X LDA CHRTBL+$300,X STA CHAR+$300,X DEX BNE CHINIT ; LDX #0 CHINT2 LDY #7 CHINT3 LDA $30*8+CHRTBL,X EOR #$FF STA $60*8+1+CHRTBL,X INX DEY BNE CHINT3 INX CPX #80 BNE CHINT2 ; ; ; JMP $AE00 ;TRANSFER TO ; TL/1 VICTBL .BYT 3 ; X OFFSET .BYT 18 ; Y OFFSET .BYT 22 ; X WIDTH .BYT 50 ; Y WIDTH * 2 .BYT 0 ; .BYT $EC ; .BYT 0 ; .BYT 0 ; .BYT 0 ; .BYT 0 ; .BYT 0 ; OSC 1 .BYT 0 ; OSC 2 .BYT 0 ; OSC 3 .BYT 0 ; NOISE .BYT $00 ; AUX.COL & VOLUME .BYT $0D ; COLOR(BLACK+GREEN)
(Source: Chris Baird)
