Browse code
Game of life
neauoire authored on 06/05/2021 01:38:28
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+( game of life ) |
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+ |
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+%+ { ADD } %- { SUB } %* { MUL } %/ { DIV }
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+%< { LTH } %> { GTH } %= { EQU } %! { NEQ }
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+%++ { ADD2 } %-- { SUB2 } %** { MUL2 } %// { DIV2 }
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+%<< { LTH2 } %>> { GTH2 } %== { EQU2 } %!! { NEQ2 }
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+ |
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+%TOS { #00 SWP }
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+%RTN { JMP2r }
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+%MOD { DUP2 / * - }
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+%SFL { #40 SFT SFT }
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+ |
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+%INCR { #01 + } %DECR { #01 - }
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+ |
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+%DEBUG { .Console/byte DEO #0a .Console/char DEO }
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+%DEBUG2 { .Console/short DEO2 #0a .Console/char DEO }
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+ |
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+%GET-SIZE { WIDTH TOS #0008 // HEIGHT TOS ** }
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+ |
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+( |
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+ The maximum grid is 256x256, |
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+ each byte is 8 horizontal cells, |
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+ the memory is 32x256[8192 bytes long] |
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+ |
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+ The universe of the Game of Life is an infinite, two-dimensional orthogonal grid of square cells, |
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+ each of which is in one of two possible states, live or dead,. Every cell interacts with its eight |
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+ neighbours, which are the cells that are horizontally, vertically, or diagonally adjacent. |
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+ At each step in time, the following transitions occur: |
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+ |
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+ Any live cell with fewer than two live neighbours dies, as if by underpopulation. |
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+ Any live cell with two or three live neighbours lives on to the next generation. |
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+ Any live cell with more than three live neighbours dies, as if by overpopulation. |
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+ Any dead cell with exactly three live neighbours becomes a live cell, as if by reproduction. |
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+ |
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+) |
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+ |
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+%WIDTH { #40 } %HEIGHT { #40 }
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+%BANK1 { #8000 }
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+%BANK2 { #a000 }
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+ |
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+( devices ) |
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+ |
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+|00 @System [ &vector $2 &wst $1 &rst $1 &pad $4 &r $2 &g $2 &b $2 ] |
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+|10 @Console [ &pad $8 &char $1 &byte $1 &short $2 &string $2 ] |
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+|20 @Screen [ &vector $2 &width $2 &height $2 &pad $2 &x $2 &y $2 &addr $2 &color $1 ] |
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+|80 @Controller [ &vector $2 &button $1 &key $1 ] |
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+|90 @Mouse [ &vector $2 &x $2 &y $2 &state $1 &chord $1 ] |
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+ |
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+( variables ) |
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+ |
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+|0000 |
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+ |
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+@timer $2 |
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+@anchor [ &x $2 &y $2 ] |
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+ |
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+( program ) |
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+ |
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+|0100 ( -> ) |
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+ |
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+ ( theme ) |
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+ #ef05 .System/r DEO2 |
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+ #cf05 .System/g DEO2 |
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+ #2f05 .System/b DEO2 |
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+ |
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+ ( vectors ) |
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+ ;on-frame .Screen/vector DEO2 |
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+ |
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+ ( glider ) |
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+ #07 #03 ;set-cell JSR2 |
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+ #07 #04 ;set-cell JSR2 |
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+ #05 #04 ;set-cell JSR2 |
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+ #07 #05 ;set-cell JSR2 |
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+ #06 #05 ;set-cell JSR2 |
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+ |
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+ .Screen/width DEI2 #0002 // WIDTH #02 / TOS SUB2 .anchor/x POK2 |
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+ .Screen/height DEI2 #0002 // HEIGHT #02 / TOS SUB2 .anchor/y POK2 |
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+ |
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+BRK |
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+ |
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+@on-frame ( -> ) |
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+ |
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+ .timer PEK #01 ADD [ DUP ] .timer POK |
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+ |
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+ #08 MOD #00 ! #01 JNZ [ BRK ] |
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+ |
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+ ( clear buffer ) |
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+ BANK2 DUP2 GET-SIZE ++ |
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+ &clear-loop |
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+ OVR2 #0000 SWP2 STA2 |
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+ ( incr ) SWP2 #0002 ADD2 SWP2 |
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+ OVR2 OVR2 !! ,&clear-loop JNZ |
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+ POP2 POP2 |
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+ |
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+ ;run-grid JSR2 |
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+ |
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+ ( move buffer ) |
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+ BANK2 DUP2 GET-SIZE ++ |
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+ ©-loop |
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+ OVR2 DUP2 LDA2 |
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+ SWP2 #2000 -- STA2 |
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+ ( incr ) SWP2 #0002 ADD2 SWP2 |
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+ OVR2 OVR2 !! ,©-loop JNZ |
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+ POP2 POP2 |
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+ |
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+ ( draw ) |
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+ #00 HEIGHT |
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+ &ver |
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+ OVR TOS .anchor/y PEK2 ADD2 .Screen/y DEO2 |
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+ OVR STH |
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+ #00 WIDTH |
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+ &hor |
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+ OVR TOS .anchor/x PEK2 ADD2 .Screen/x DEO2 |
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+ OVR DUPr STHr ,get-cell JSR #01 + .Screen/color DEO |
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+ ( incr ) SWP #01 + SWP |
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+ DUP2 ! ,&hor JNZ |
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+ POP2 |
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+ POPr |
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+ ( incr ) SWP #01 + SWP |
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+ DUP2 ! ,&ver JNZ |
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+ POP2 |
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+ |
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+BRK |
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+ |
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+@get-index ( x y -- index* ) |
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+ |
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+ HEIGHT MOD SWP WIDTH MOD SWP |
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+ WIDTH #08 / TOS ROT TOS ** ROT #08 / TOS ++ [ BANK1 ++ ] |
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+ |
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+RTN |
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+ |
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+@set-cell ( x y -- ) |
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+ |
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+ DUP2 ,get-index JSR LDA STH |
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+ DUP2 POP #08 MOD #01 SWP SFL |
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+ STHr SWP ORA STH |
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+ ,get-index JSR STHr ROT ROT STA |
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+ |
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+RTN |
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+ |
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+@get-cell ( x y -- cell ) |
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+ |
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+ DUP2 ,get-index JSR LDA |
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+ SWP POP SWP |
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+ #08 MOD |
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+ SFT #01 AND |
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+ |
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+RTN |
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+ |
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+@get-neighbours ( x y -- neighbours ) |
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+ |
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+ ( -1,-1 ) DUP2 DECR SWP DECR SWP ,get-cell JSR STH |
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+ ( 0,-1 ) DUP2 DECR ,get-cell JSR STH ADDr |
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+ ( +1,-1 ) DUP2 DECR SWP INCR SWP ,get-cell JSR STH ADDr |
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+ ( -1, 0 ) DUP2 SWP DECR SWP ,get-cell JSR STH ADDr |
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+ ( +1, 0 ) DUP2 SWP INCR SWP ,get-cell JSR STH ADDr |
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+ ( -1,+1 ) DUP2 INCR SWP DECR SWP ,get-cell JSR STH ADDr |
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+ ( 0,+1 ) DUP2 INCR ,get-cell JSR STH ADDr |
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+ ( +1,+1 ) INCR SWP INCR SWP ,get-cell JSR STH ADDr |
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+ STHr |
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+ |
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+RTN |
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+ |
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+@run-grid ( -- ) |
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+ |
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+ #00 HEIGHT |
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+ &ver |
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+ OVR STH |
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+ #00 WIDTH |
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+ &hor |
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+ OVR DUPr STHr STH2 |
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+ ( x y ) DUP2r STH2r |
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+ ( neighbours ) DUP2r STH2r ,get-neighbours JSR |
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+ ( state ) STH2r ;get-cell JSR2 |
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+ ,run-cell JSR |
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+ ( incr ) SWP #01 + SWP |
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+ DUP2 ! ,&hor JNZ |
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+ POP2 |
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+ POPr |
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+ ( incr ) SWP #01 + SWP |
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+ DUP2 ! ,&ver JNZ |
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+ POP2 |
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+ |
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+RTN |
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+ |
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+@run-cell ( x y neighbours state -- ) |
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+ |
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+ #00 = ,&dead JNZ |
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+ &alive |
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+ DUP #02 < ,&dies JNZ |
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+ DUP #03 > ,&dies JNZ |
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+ &lives POP ,save-cell JSR RTN |
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+ &dies POP POP2 RTN |
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+ &dead |
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+ DUP #03 = ,&birth JNZ POP POP2 RTN |
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+ &birth POP ,save-cell JSR RTN |
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+ |
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+RTN |
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+ |
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+@save-cell ( x y -- ) |
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+ |
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+ ,get-index-buffer JSR STH2 |
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+ DUP2 POP #08 MOD #01 SWP SFL |
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+ DUP2r LDAr STHr SWP ORA |
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+ STH2r STA |
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+ |
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+RTN |
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+ |
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+@get-index-buffer ( x y -- index* ) |
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+ |
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+ HEIGHT MOD SWP WIDTH MOD SWP |
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+ WIDTH #08 / TOS ROT TOS ** ROT #08 / TOS ++ [ BANK2 ++ ] |
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+ |
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+RTN |