diff options
| -rw-r--r-- | .gitignore | 4 | ||||
| -rw-r--r-- | ABOUT.txt | 24 | ||||
| -rw-r--r-- | BUILD.txt | 12 | ||||
| -rw-r--r-- | Makefile | 24 | ||||
| -rw-r--r-- | about.dat | bin | 0 -> 960 bytes | |||
| -rw-r--r-- | autorun.s | 121 | ||||
| -rw-r--r-- | autorun.sys | bin | 0 -> 1172 bytes | |||
| -rw-r--r-- | dla.atr | bin | 92176 -> 92176 bytes | |||
| -rw-r--r-- | dla.atr.in | bin | 92176 -> 92176 bytes | |||
| -rw-r--r-- | dla2csv.xex | bin | 11322 -> 11322 bytes | |||
| -rw-r--r-- | text2screen.pl | 42 |
11 files changed, 216 insertions, 11 deletions
@@ -19,3 +19,7 @@ bar.* 2 3 4 +?.pl +?.c +?.xex +dla2csv.map diff --git a/ABOUT.txt b/ABOUT.txt new file mode 100644 index 0000000..0dd9ff0 --- /dev/null +++ b/ABOUT.txt @@ -0,0 +1,24 @@ +Diffusion Limited Aggregation v%V + +Diffusion-limited aggregation (DLA) +is the process whereby particles +undergoing a random walk due to +Brownian motion cluster together to +form aggregates of such particles. + +This is a DLA implementation for the +Atari 8-bit computers. It will run on +any Atari with at least 48K of RAM. + +DLA.XEX generates DLA images. It's +written in hand-optimized assembly. +It takes about 3 minutes to generate +an image with 1000 particles. + +DLA2CSV.XEX converts DLA images to +comma-separated-value files, for +statistical analysis purposes. + +Author: B. Watson, aka Urchlay. + +\1:DLA.XEX \2:DLA2CSV.XEX \3:DOS? \ @@ -9,10 +9,11 @@ even be modern Windows), with the following software installed: recent version should do; I used 2.19. - Optional: "perl", the Perl 5 interpreter. Only used to generate the - files dlatbl.s, dlaver.inc, and dlaver.h. These files are part - of the source distribution, so you only need Perl if you're going - to modify the data tables (the mkdlatbl.pl script), or change the - version number (mkver.pl). + files dlatbl.s, dlaver.inc, dlaver.h, and (for "make disk"), + about.dat. These files are part of the source distribution, so + you only need Perl if you're going to modify the data tables (the + mkdlatbl.pl script), or change the version number (mkver.pl), + or the intro screen in dla.atr (ABOUT.txt). - Optional: "cc", a host C compiler (e.g. gcc or clang). Only used for compiling dla2csv for the host. @@ -25,7 +26,8 @@ You should be able to build everything from a terminal by typing and (if possible) dla2csv for the host. If you want a disk image, you can try "make disk", which will create -dla.atr (if you have axe on your $PATH). +dla.atr (if you have axe on your $PATH). The disk is MyDOS formatted, +single density. Ideally, all the software should be found in your $PATH. If not, you can set the full paths by defining them on the make command line. @@ -9,6 +9,8 @@ PERL=perl CC=cc CFLAGS=-O2 -Wall +.PHONY: all disk test disktest realtest tnfs clean distclean + all: dla.xex dla2csv dla2csv.xex dla2img.sh dla.xex: dla.s io.s dlatbl.s xex.inc printint.s render.s drunkwalk.s dlaver.h @@ -32,17 +34,27 @@ dla2csv: dla2csv.c dlaver.h # turn off unused parameter warnings because cc65 insists on complaining # that argc and argv are unused. +# note that using 0x2d00 for the start address makes the atari crash +# when exiting dla2csv.xex in MyDOS 4.50, but 0x2800 is fine. 0x2000 +# also works, but not all DOSes have MEMLO set that low... dla2csv.xex: dla2csv.c dlaver.h - $(CL65) $(CL65FLAGS) -t atari -W -unused-param -m dla2csv.map -o $@ dla2csv.c + $(CL65) $(CL65FLAGS) -t atari -W -unused-param -m dla2csv.map --start-addr 0x2800 -o $@ dla2csv.c -disk: dla.atr +autorun.sys: autorun.s about.dat + $(CL65) $(CL65FLAGS) -l about.list -t none -o autorun.sys autorun.s + +about.dat: text2screen.pl ABOUT.txt + perl text2screen.pl < ABOUT.txt > about.dat # dla.atr.in is just a DOS 2.0s disk image. -dla.atr: all +dla.atr: dla.xex dla2csv.xex autorun.sys dla.atr.in cp dla.atr.in dla.atr + axe -w autorun.sys dla.atr axe -w dla.xex dla.atr axe -w dla2csv.xex dla.atr +disk: dla.atr + test: all atari800 dla.xex @@ -57,13 +69,13 @@ tnfs: all sh tnfs.sh dla.xex dla2csv.xex dla.atr clean: - rm -f dla.xex dla2csv dla2csv.xex dla.list dla.labels *.o dla.atr + rm -f dla.xex dla2csv dla2csv.xex autorun.sys dla.list dla.labels *.o dla.atr distclean: clean - rm -f dlatbl.s dlaver.inc dlaver.h + rm -f dlatbl.s dlaver.inc dlaver.h about.dat # this rule isn't actually used by the other targets, it's just # handy for writing little "test.c" programs and being able to # say "make test.xex". %.xex: %.c - $(CL65) $(CL65FLAGS) -t atari -W -unused-param -o $@ $< + $(CL65) $(CL65FLAGS) --start-addr 0x2800 -t atari -W -unused-param -o $@ $< diff --git a/about.dat b/about.dat Binary files differnew file mode 100644 index 0000000..cc82904 --- /dev/null +++ b/about.dat diff --git a/autorun.s b/autorun.s new file mode 100644 index 0000000..c7bbac0 --- /dev/null +++ b/autorun.s @@ -0,0 +1,121 @@ + .include "atari.inc" + .include "xex.inc" + + .bss + .org $80 + +old_sdlstl: .res 1 +old_sdlsth: .res 1 +old_color2: .res 1 +old_color1: .res 1 + + .code + +loadaddr = $3000 + + xex_org loadaddr +screendata: + .incbin "about.dat" + + .if ((* - screendata) <> 960) + .error .sprintf("%c*** about.dat is %d bytes (should be 960)", 10, * - screendata) + .endif + +dlist: + .byte DL_BLK8, DL_BLK8, DL_BLK8 + .byte DL_CHR40x8x1 | DL_LMS + .word screendata + .repeat 23 + .byte DL_CHR40x8x1 + .endrep + .byte DL_JVB + .word dlist + +main: + ; fix things so the Reset key doesn't do a coldstart, see + ; BOOT? and COLDST in Mapping. + lda #0 + sta COLDST + lda #1 + sta BOOTQ + + lda SDLSTL + sta old_sdlstl + lda SDLSTH + sta old_sdlsth + lda COLOR1 + sta old_color1 + lda COLOR2 + sta old_color2 + + lda #$90 + sta COLOR2 + lda #$0e + sta COLOR1 + lda #<dlist + sta SDLSTL + lda #>dlist + sta SDLSTH + +loop: + ldx CH + cpx #$ff + beq loop + + lda #$ff + sta CH + + lda old_sdlstl + sta SDLSTL + lda old_sdlsth + sta SDLSTH + lda old_color1 + sta COLOR1 + lda old_color2 + sta COLOR2 + + cpx #KEY_1 + bne not_1 + ldy #0 + beq setup_iocb + +not_1: + cpx #KEY_2 + bne not_2 + ldy #1 + bne setup_iocb + +not_2: + ; 3, or actually any other key + rts + +setup_iocb: + ldx #$10 + lda #$28 ; MyDOS XIO 40 + sta ICCOM,x + lda fntab_l,y + sta ICBAL,x + lda fntab_h,y + sta ICBAH,x + lda fnlentab,y + sta ICBLL,x + lda #0 + sta ICBLH,x + jsr CIOV + + ; CIOV should never return on success, so if we get here, give up. + lda #0 + sta COLOR2 +hang: jmp hang + rts + +dla_filename: .byte "D:DLA.XEX" +dla_fn_len = * - dla_filename +csv_filename: .byte "D:DLA2CSV.XEX" +csv_fn_len = * - csv_filename + +fntab_l: .byte <dla_filename, <csv_filename +fntab_h: .byte >dla_filename, >csv_filename +fnlentab: .byte dla_fn_len, csv_fn_len + +xex_run main diff --git a/autorun.sys b/autorun.sys Binary files differBinary files differBinary files differnew file mode 100644 index 0000000..b3a58f9 --- /dev/null +++ b/autorun.sys diff --git a/dla2csv.xex b/dla2csv.xex Binary files differindex dd5a06f..0d03935 100644 --- a/dla2csv.xex +++ b/dla2csv.xex diff --git a/text2screen.pl b/text2screen.pl new file mode 100644 index 0000000..7dc2e52 --- /dev/null +++ b/text2screen.pl @@ -0,0 +1,42 @@ +#!/usr/bin/perl -w + +# Turn each line of stdin into one 40-byte line of Atari screen codes, +# truncating or padding with nulls as needed. + +# Input format is plain text, except any character can be preceded +# by a \ to inverse it. No way to get a non-inverse \ in there, sorry. +# %V will be replaced by the contents of the VERSION file. + +use bytes; + +$linelen = $1 || 40; # 40 for normal playfield. + +chomp($ver = `cat VERSION`); + +while(<>) { + chomp; + + s/%V/$ver/; + s/\\(.)/chr(ord($1)|0x80)/ge; + + if(length > $linelen) { + warn "$0: line $. truncated to $linelen characters!\n"; + substr($_, $linelen) = ""; + } + + my $blanks = $linelen; + for(map { ord } split "", $_) { + my $byte = $_ & 0x7f; + my $inv = $_ & 0x80; +#warn sprintf("\$_ %02x, \$byte %02x, \$inv %02x", $_, $byte, $inv); + if($byte < 32) { + $byte += 64; + } elsif($byte >= 32 && $byte <= 96) { + $byte -= 32; + } +#warn sprintf("result: %02x", ($byte | $inv)); + print chr($byte | $inv); + $blanks--; + } + print chr(0) x $blanks; +} |