mirror of
https://github.com/mi57730/a2d.git
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2f1e20099d
* Make ESC key close * Fix cursor glitch when closing if over menu * Don't overlap input/window params - maybe fix MD bug?
57 lines
1.3 KiB
Perl
Executable File
57 lines
1.3 KiB
Perl
Executable File
#!/usr/bin/env perl
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use strict;
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use warnings;
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my @lo;
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my @hi;
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for (my $i = 0; $i < 256; ++$i) {
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my $bits = $i;
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my $accum = 0;
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for (my $b = 0; $b < 7; ++$b) {
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if ($bits & 1) {
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$accum = $accum | (0b11 << ($b * 2));
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}
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$bits = $bits >> 1;
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}
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my $lo;
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my $hi;
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if ($bits & 1) {
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# palette bit set is easy case
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$lo = ($accum & 0x7f);
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$hi = (($accum >> 7) & 0xff);
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} else {
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# otherwise, encode spill bit into hi bit of main mem (hi)
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my $spill = $accum & 1;
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$accum = $accum >> 1;
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$lo = ($accum & 0x7f);
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$hi = (($accum >> 7) & 0xff) | ($spill << 7); # encode spill bit
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}
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push @lo, $lo;
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push @hi, $hi;
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}
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print "\n";
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print ";;; HR to DHR - Aux Mem Bytes\n";
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print "hr_to_dhr_aux:\n";
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for (my $i = 0; $i < 256; $i += 8) {
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print " .byte ";
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for (my $j = 0; $j < 8; ++$j) {
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print sprintf("\$%02x", $lo[$i + $j]);
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print ", " unless $j == 7;
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}
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print "\n";
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}
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print "\n";
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print ";;; HR to DHR - Main Mem Bytes\n";
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print "hr_to_dhr_main:\n";
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for (my $i = 0; $i < 256; $i += 8) {
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print " .byte ";
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for (my $j = 0; $j < 8; ++$j) {
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print sprintf("\$%02x", $hi[$i + $j]);
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print ", " unless $j == 7;
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}
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print "\n";
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}
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