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Comparing vt102/vt102 (file contents):
Revision 1.13 by root, Wed Dec 3 02:13:26 2014 UTC vs.
Revision 1.15 by root, Wed Dec 3 02:14:56 2014 UTC

… …
21#use common::sense; 21#use common::sense;
22 22
23my $VT102 = 1; 23my $VT102 = 1;
24my $VT131 = 0; 24my $VT131 = 0;
25my $AVO = 1; 25my $AVO = 1;
26my $KBD = 1;
27 26
28shift, ($VT102 = 0), ($AVO = 0) if $ARGV[0] =~ /^-?-vt100$/; 27shift, ($VT102 = 0), ($AVO = 0) if $ARGV[0] =~ /^-?-vt100$/;
29shift, ($VT102 = 0) if $ARGV[0] =~ /^-?-vt100\+avo$/; 28shift, ($VT102 = 0) if $ARGV[0] =~ /^-?-vt100\+avo$/;
30shift if $ARGV[0] =~ /^-?-vt102$/; 29shift if $ARGV[0] =~ /^-?-vt102$/;
31shift, ($VT131 = 1) if $ARGV[0] =~ /^-?-vt131$/; 30shift, ($VT131 = 1) if $ARGV[0] =~ /^-?-vt131$/;
… …
73} 72}
74 73
75############################################################################# 74#############################################################################
76# ROM/hardware init 75# ROM/hardware init
77 76
77my $PTY; # the pty we allocated, if any
78my $KBD = 1;
79
78my $ROMS = do { 80my $ROMS = do {
79 binmode DATA; 81 binmode DATA;
80 local $/; 82 local $/;
81 <DATA> 83 <DATA>
82}; 84};
83 85
840x6801 == length $ROMS or die "corrupted rom image"; 860x6801 == length $ROMS or die "corrupted rom image";
85
86binmode STDOUT;
87 87
88my @M = (0xff) x 65536; # main memory, = (0xff) x 65536; 88my @M = (0xff) x 65536; # main memory, = (0xff) x 65536;
89 89
90# populate mem with rom contents 90# populate mem with rom contents
91if ($VT102) { 91if ($VT102) {
… …
96 @M[0x0000 .. 0x1fff] = unpack "C*", substr $ROMS, 0x0000, 0x2000; 96 @M[0x0000 .. 0x1fff] = unpack "C*", substr $ROMS, 0x0000, 0x2000;
97} 97}
98 98
99############################################################################# 99#############################################################################
100# 8085 CPU registers and I/O support 100# 8085 CPU registers and I/O support
101
102my $PTY; # the pty we allocated, if any
103 101
104# 8080/8085 registers 102# 8080/8085 registers
105# b, c, d, e, h, l, a 103# b, c, d, e, h, l, a
106my ($A, $B, $C, $D, $E, $H, $L, $A); 104my ($A, $B, $C, $D, $E, $H, $L, $A);
107my ($PC, $SP, $IFF, $FA, $FZ, $FS, $FP, $FC); 105my ($PC, $SP, $IFF, $FA, $FZ, $FS, $FP, $FC);
… …
132 sub { $NVR[$_[0]] = 0x3fff; }, # 5 erase 130 sub { $NVR[$_[0]] = 0x3fff; }, # 5 erase
133 sub { $NVRDATA = $NVR[$_[0]]; }, # 6 read 131 sub { $NVRDATA = $NVR[$_[0]]; }, # 6 read
134 sub { }, # 7 standby 132 sub { }, # 7 standby
135); 133);
136 134
137my @bitidx; 135my @NVR_BITIDX;
138$bitidx[1 << $_] = 9 - $_ for 0..9; 136$NVR_BITIDX[1 << $_] = 9 - $_ for 0..9;
139 137
140# the nvr1400 state machine. what a monster 138# the nvr1400 state machine. what a monster
141sub nvr() { 139sub nvr() {
142 my $a1 = $bitidx[(~$NVRADDR ) & 0x3ff]; 140 my $a1 = $NVR_BITIDX[(~$NVRADDR ) & 0x3ff];
143 my $a0 = $bitidx[(~$NVRADDR >> 10) & 0x3ff]; 141 my $a0 = $NVR_BITIDX[(~$NVRADDR >> 10) & 0x3ff];
144 142
145# printf "NVR %02x A %020b %d %d D %02x\n", $NVRLATCH, $NVRADDR & 0xfffff, $a1, $a0, $NVRDATA; 143# printf "NVR %02x A %020b %d %d D %02x\n", $NVRLATCH, $NVRADDR & 0xfffff, $a1, $a0, $NVRDATA;
146 144
147 $NVRCMD[($NVRLATCH >> 1) & 7]($a1 * 10 + $a0, $NVRLATCH & 1) 145 $NVRCMD[($NVRLATCH >> 1) & 7]($a1 * 10 + $a0, $NVRLATCH & 1)
148} 146}
… …
487 $M[$PC], $op[$M[$PC]]; 485 $M[$PC], $op[$M[$PC]];
488} 486}
489 487
490############################################################################# 488#############################################################################
491# video emulation 489# video emulation
490
491binmode STDOUT;
492 492
493my @CHARMAP = ( 493my @CHARMAP = (
494 " " , "\x{29eb}", "\x{2592}", "\x{2409}", 494 " " , "\x{29eb}", "\x{2592}", "\x{2409}",
495 "\x{240c}", "\x{240d}", "\x{240a}", "\x{00b0}", 495 "\x{240c}", "\x{240d}", "\x{240a}", "\x{00b0}",
496 "\x{00b1}", "\x{2424}", "\x{240b}", "\x{2518}", 496 "\x{00b1}", "\x{2424}", "\x{240b}", "\x{2518}",

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