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#!/usr/bin/perl |
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|
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use strict; |
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use warnings; |
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|
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use Carp; |
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use Data::Dump qw/dump/; |
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|
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use SDL::App; |
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use SDL::Rect; |
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use SDL::Color; |
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|
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use lib './lib'; |
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use Orao; |
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|
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my $debug = 0; |
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my $scale = 1; |
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my $show_mem = 1; |
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my $run_for = 1; |
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my $mem_dump = 'mem.dump'; |
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my $trace = 0; |
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|
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|
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my $app = SDL::App->new( |
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-width => 256 * $scale + ( $show_mem ? 256 : 0 ), |
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-height => 256 * $scale, |
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-depth => 16, |
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); |
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|
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$app->grab_input( 0 ); |
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|
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my $white = SDL::Color->new( -r => 0xff, -g => 0xff, -b => 0xff ); |
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my $black = SDL::Color->new( -r => 0x80, -g => 0x80, -b => 0x80 ); |
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|
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my $red = SDL::Color->new( -r => 0xff, -g => 0x00, -b => 0x00 ); |
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my $green = SDL::Color->new( -r => 0x00, -g => 0xff, -b => 0x00 ); |
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my $blue = SDL::Color->new( -r => 0x00, -g => 0x00, -b => 0xff ); |
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|
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sub p { |
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my ($x,$y,$w) = (@_); |
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|
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warn "p($x,$y,$w)\n" if $debug; |
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|
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my $rect = SDL::Rect->new( |
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-height => $scale, |
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-width => $scale, |
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-x => $x * $scale, |
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-y => $y * $scale, |
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); |
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|
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$app->fill( $rect, $w ? $white : $black ); |
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$app->update( $rect ); |
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} |
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|
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my $stat; |
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|
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sub mem_xy { |
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my $offset = shift; |
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my $x = $offset & 0xff; |
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$x += 256 * $scale; |
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my $y = $offset >> 8; |
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return ($x,$y); |
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} |
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|
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=head2 vram |
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|
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$orao->vram( $offset, $byte ); |
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|
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=cut |
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|
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sub vram { |
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my ( $offset, $byte ) = @_; |
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my $x = ( $offset % 32 ) << 3; |
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my $y = $offset >> 5; |
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my $mask = 1; |
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|
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printf "## vram %04x %02x*%02x %02x\n", $offset, $x, $y, $byte if $trace; |
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|
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foreach ( 0 .. 7 ) { |
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p($x + $_, $y, $byte & $mask ); |
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$mask = $mask << 1; |
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} |
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} |
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|
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my $orao = new Orao({ |
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mmu => sub { |
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my ( $offset, $what, $value ) = @_; |
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my ( $x, $y ) = mem_xy( $offset ); |
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printf "## mem %04x %s = %02x %02d*%02d\n", $offset, $what, $value, $x, $y if $trace; |
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|
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if ( $offset >= 0x6000 && $offset < 0x8000 ) { |
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vram( $offset - 0x6000 , $value ); |
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} |
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|
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my ( $r,$g,$b ) = ( 0,0,0 ); |
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|
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if ( $what eq 'write' ) { |
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$r = $value; |
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if ( $offset > 0xafff ) { |
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printf "access to %04x above affff aborting\n", $offset; |
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return -1; |
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} |
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if ( $offset == 0x8800 ) { |
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printf "sound ignored: %x\n", $value; |
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} |
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} elsif ( $what eq 'read' ) { |
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$g = $value; |
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} else { |
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$b = $value; |
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} |
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|
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my $col = SDL::Color->new( -r => $r, -g => $g, -b => $b ); |
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$app->pixel( $x, $y, $col ); |
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|
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$stat->{$what}++; |
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if ( $stat->{$what} % 1000 == 0 ) { |
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$app->sync; |
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} |
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}, |
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}); |
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|
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my ($pc, $a, $x, $y, $s, $p) = (0) x 6; |
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#$orao->load_rom('dump/basic.dmp', -2); |
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|
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#$pc = 0xDD11; # BC |
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#$pc = 0xC274; # MC |
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|
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$orao->load_rom('makewav/SCRINV.BIN', 0x1000); |
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$pc = 0x1000; |
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|
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#$orao->load_oraoemu('dump/orao-64k-1.2.dmp'); |
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#$pc = 0xe5b7; |
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|
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# memory dump |
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my $rect = SDL::Rect->new( |
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-height => 256, |
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-width => 256, |
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-x => 256 * $scale, |
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-y => 0, |
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); |
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|
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$app->fill( $rect, $white ); |
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$app->update( $rect ); |
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|
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warn "rendering memory map\n"; |
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|
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my @mmap = ( |
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0x0000, 0x03FF, 'nulti blok', |
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0x0400, 0x5FFF, 'korisnièki RAM (23K)', |
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0x6000, 0x7FFF, 'video RAM', |
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0x8000, 0x9FFF, 'sistemske lokacije', |
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0xA000, 0xAFFF, 'ekstenzija', |
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0xB000, 0xBFFF, 'DOS', |
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0xC000, 0xDFFF, 'BASIC ROM', |
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0xE000, 0xFFFF, 'sistemski ROM', |
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); |
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|
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foreach my $i ( 0 .. $#mmap / 3 ) { |
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my $o = $i * 3; |
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my ( $from, $to, $desc ) = @mmap[$o,$o+1,$o+2]; |
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printf "%04x - %04x - %s\n", $from, $to, $desc; |
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for my $a ( $from .. $to ) { |
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$orao->read_8( $a ); |
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} |
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$app->sync; |
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} |
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|
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my $last; |
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|
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sub opcode_cb { |
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my $a = shift || confess "no pc?"; |
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$app->sync; |
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while ( my @v = $orao->prompt( $a, $last ) ) { |
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my $c = shift @v; |
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my $v = shift @v; |
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$v = hex($v) if $v && $v =~ m/^[0-9a-f]+$/; |
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printf "## [%s] %s\n", ($v || 'undef'), join(",",@v) if $debug; |
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@v = map { hex($_) } @v; |
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if ( $c =~ m/^[qx]/i ) { |
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exit; |
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} elsif ( $c eq '?' ) { |
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warn <<__USAGE__; |
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uage: |
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x|q\t\texit |
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e 6000 6010\tdump memory, +/- to walk forward/backward |
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m 1000 ff 00\tput ff 00 on 1000 |
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j|u 1000\t\tjump (change pc) |
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r 42\t\trun 42 instruction opcodes |
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__USAGE__ |
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} elsif ( $c =~ m/^e/i ) { |
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$a ||= $v; |
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my $to = shift @v; |
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$to = $a + 32 if ( ! $to || $to <= $a ); |
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my $lines = int( ($to - $a - 8) / 8 ); |
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printf "## m %04x %04x lines: %d\n", $a, $to, $lines; |
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while ( $lines ) { |
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print $orao->hexdump( $a ); |
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$a += 8; |
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$lines--; |
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} |
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$last = '+'; |
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} elsif ( $c =~ m/^\+/ ) { |
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$a += 8; |
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} elsif ( $c =~ m/^\-/ ) { |
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$a -= 8; |
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} elsif ( $c =~ m/^m/i ) { |
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$a = $v; |
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$orao->poke_code( $a, @v ); |
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printf "poke %d bytes at %04x\n", $#v + 1, $a; |
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} elsif ( $c =~ m/^l/i ) { |
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my $to = shift @v || 0x1000; |
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$a = $to; |
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$orao->load_oraoemu( $v, $a ); |
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} elsif ( $c =~ m/^s/i ) { |
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$orao->save_dump( $v || $mem_dump, @v ); |
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} elsif ( $c =~ m/^r/i ) { |
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$run_for = $v || 1; |
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print "run_for $run_for instructions\n"; |
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last; |
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} elsif ( $c =~ m/^(u|j)/ ) { |
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my $to = $v || $a; |
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printf "set pc to %04x\n", $to; |
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$orao->set_pc( $to ); |
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$pc = $to; # remember for restart |
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$run_for = 1; |
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$last = 'r 1'; |
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last; |
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} elsif ( $c =~ m/^t/ ) { |
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$trace = not $trace; |
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print "trace ", $trace ? 'on' : 'off', "\n"; |
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} else { |
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warn "# ignore $c\n"; |
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} |
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} |
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} |
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|
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sub restart { |
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printf "starting emulation -- pc: %04x a:%d x:%d y:%d s:%d p:%d for %d instructions\n", $pc, $a, $x, $y, $s, $p, $run_for; |
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|
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$orao->set_pc( $pc ); |
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$orao->set_a( $a ); |
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$orao->set_x( $x ); |
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$orao->set_y( $y ); |
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$orao->set_s( $s ); |
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$orao->set_p( $p ); |
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} |
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|
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restart; |
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|
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while ( 1 ) { |
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eval { |
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$orao->run( $run_for , sub { |
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my ($pc, $inst, $a, $x, $y, $s, $p) = @_; |
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$run_for--; |
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|
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$app->pixel( mem_xy( $pc ), $white ); |
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$app->sync if ( $run_for % 500 == 0 ); |
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|
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printf " PC: %04x A:%02x P:%02x X:%02x Y:%02x S:%02x [%d]\n", $pc, $a,$p,$x,$y,$s, $run_for if ( $trace || $run_for % 1000 == 0 ); |
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opcode_cb( $pc ) if ( $run_for <= 1 ); |
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|
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return 1; |
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} ); |
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}; |
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|
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if ( $@ ) { |
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print "restart after $@\n"; |
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restart(); |
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$run_for = 1; |
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} |
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|
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$run_for ||= 1; |
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} |
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