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Comparing vt102/vt102 (file contents):
Revision 1.2 by root, Mon Dec 1 15:37:50 2014 UTC vs.
Revision 1.4 by root, Mon Dec 1 18:31:02 2014 UTC

… …
21# ./vt102 bash 21# ./vt102 bash
22# ./vt102 telnet towel.blinkenlights.nl 22# ./vt102 telnet towel.blinkenlights.nl
23# ./vt102 curl http://artscene.textfiles.com/vt100/trekvid.vt 23# ./vt102 curl http://artscene.textfiles.com/vt100/trekvid.vt
24# ./vt102 curl http://artscene.textfiles.com/vt100/surf.vt # in 3d! 24# ./vt102 curl http://artscene.textfiles.com/vt100/surf.vt # in 3d!
25 25
26# TODO: ctrl
27
26use common::sense; 28use common::sense;
27 29
28$| = 1; 30$| = 1;
29 31
30my $VT102 = 0; 32my $VT102 = 1;
31my $AVO = $VT102 || 1; 33my $AVO = $VT102 || 1;
32my $KBD = 1; 34my $KBD = 1;
33 35
34############################################################################# 36#############################################################################
35 37
… …
141 143
142sub out_00 { # pusartdata 144sub out_00 { # pusartdata
143 # handle xon/xoff, but also pass it through 145 # handle xon/xoff, but also pass it through
144 if ($_[0] == 0x13) { 146 if ($_[0] == 0x13) {
145 $XON = 0; 147 $XON = 0;
148 return;#d#
146 } elsif ($_[0] == 0x11) { 149 } elsif ($_[0] == 0x11) {
147 $XON = 1; 150 $XON = 1;
151 return;#d#
148 } 152 }
149 153
150 syswrite $PTY, chr $_[0]; 154 syswrite $PTY, chr $_[0];
151 155
152 $INTPEND |= 1; # 5.5 txrdy 156 $INTPEND |= 1;
153} 157}
154 158
155sub out_01 { 159sub out_01 {
156 $PUSARTCMD = shift; 160 $PUSARTCMD = shift;
157 161
158 $INTPEND |= 1 if $PUSARTCMD & 0x01; # VT102, 5.5 txrdy 162 $INTPEND |= 1 if $PUSARTCMD & 0x01; # VT102, 5.5 txrdy
159 $INTPEND |= 2 if $PUSARTCMD & 0x04; # VT102, 6.5 rxrdy 163 $INTPEND |= 2 if $PUSARTCMD & 0x04 && !@PUSARTRECV; # VT102, 6.5 rxrdy, needed for some reason
160} 164}
161 165
162sub out_02 { } # baudrate generator 166sub out_02 { } # baudrate generator
163 167
164sub out_23 { } # unknown 168sub out_23 { } # unknown
… …
215 219
216my $NVRBIT; 220my $NVRBIT;
217my $LBA; 221my $LBA;
218 222
219sub in_00 { # pusart data 223sub in_00 { # pusart data
220# print "READ PUSARTDATA (@PUSARTRECV)\n"; 224 # interrupt not generated here, because infinite
221 225 # speed does not go well with the vt102.
222# $RST |= 2 if $#PUSARTRECV && $XON;
223# $INTPEND |= 2 if $#PUSARTRECV && $XON;
224 226
225 shift @PUSARTRECV 227 shift @PUSARTRECV
226} 228}
227 229
228sub in_01 { # pusart status 230sub in_01 { # pusart status
… …
237 239
238sub in_0f { } # unknown, connected to out 2f 240sub in_0f { } # unknown, connected to out 2f
239 241
240sub in_42 { # flag buffer 242sub in_42 { # flag buffer
241 ++$LBA; 243 ++$LBA;
242# ++$LBA;
243# printf "%04x lba %04x, %04x\n", $PC, $LBA, $CLK;
244 244
245 $NVRBIT = nvr ? 0x20 : 0x00 if ($LBA & 0x3) == 0x2; 245 $NVRBIT = nvr ? 0x20 : 0x00 if ($LBA & 0x3) == 0x2;
246 246
247 # KBD_XMITEMPTY LBA7 NVRDATA ODDFIELD - OPTION !GFX !AVO PUSART_TXRDY 247 # KBD_XMITEMPTY LBA7 NVRDATA ODDFIELD - OPTION !GFX !AVO PUSART_TXRDY
248 248
… …
266sub in_17 { 0xff } # unknown, printer status clear by reading? 266sub in_17 { 0xff } # unknown, printer status clear by reading?
267sub in_1b { 0xff } # unknown 267sub in_1b { 0xff } # unknown
268 268
269############################################################################# 269#############################################################################
270 270
271sub sf { 271sub sf { # set flags (ZSC - AP not implemented)
272 $FS = $_[0] & 0x080; 272 $FS = $_[0] & 0x080;
273 $FZ = ($_[0] & 0x0ff) == 0; 273 $FZ = ($_[0] & 0x0ff) == 0;
274 $FC = $_[0] & 0x100; 274 $FC = $_[0] & 0x100;
275 275
276 $_[0] & 0xff 276 $_[0] & 0xff
277} 277}
278 278
279sub sf_nc { 279sub sf_nc { # set flags except carry
280 $FS = $_[0] & 0x080; 280 $FS = $_[0] & 0x080;
281 $FZ = ($_[0] & 0x0ff) == 0; 281 $FZ = ($_[0] & 0x0ff) == 0;
282 282
283 $_[0] & 0xff 283 $_[0] & 0xff
284} 284}
… …
549 require IO::Pty; 549 require IO::Pty;
550 $PTY = IO::Pty->new; 550 $PTY = IO::Pty->new;
551 551
552 my $slave = $PTY->slave; 552 my $slave = $PTY->slave;
553 553
554 $PTY->set_winsize (24, 80);
555
554 unless (fork) { 556 unless (fork) {
555 $ENV{TERM} = $VT102 ? "vt102" : "vt100"; 557 $ENV{TERM} = $VT102 ? "vt102" : "vt100";
556 558
557 close $PTY; 559 close $PTY;
558 560
559 open STDIN , "<&", $slave; 561 open STDIN , "<&", $slave;
560 open STDOUT, ">&", $slave; 562 open STDOUT, ">&", $slave;
561 open STDERR, ">&", $slave; 563 open STDERR, ">&", $slave;
562 564
565 system "stty ixoff erase ^H";
566
567 $PTY->make_slave_controlling_terminal;
563 close $slave; 568 $PTY->close_slave;
564 569
565 exec @ARGV; 570 exec @ARGV;
566 } 571 }
567 572
568 close $slave; 573 $PTY->close_slave;
574
569} else { 575} else {
570 open $PTY, "</dev/null" or die;#d 576 open $PTY, "</dev/null" or die;#d
571} 577}
572 578
573############################################################################# 579#############################################################################
… …
721 eval "use integer; sub { $insn }" or die "$insn: $@" 727 eval "use integer; sub { $insn }" or die "$insn: $@"
722 })->(); 728 })->();
723 729
724 ++$CLK; 730 ++$CLK;
725 731
726 #TODO: just check on ret instructions or so 732 # things we do from time too time only
733 unless ($CLK & 0xf) {
734 # do I/O
735
736 unless ($CLK & 0x7ff) {
737
738 # pty/serial I/O
739 unless (@PUSARTRECV || @KQUEUE || !$PTY) {
740 my $rin = ""; (vec $rin, fileno $PTY, 1) = 1;
741
742 if (select $rin, undef, undef, 0) {
743 sysread $PTY, my $buf, 256;
744 push @PUSARTRECV, unpack "C*", $buf;
745 }
746 }
747
748 # keyboard input
749 if ($KBD) {
750 while (select my $rin = "\x01", undef, undef, 0) {
751 sysread STDIN, $STDIN_BUF, 1, length $STDIN_BUF
752 or last;
753 }
754
755 stdin_parse if length $STDIN_BUF;
756 }
757 }
758
759 # kick off various interrupts
760
761 $RST |= 2 if @PUSARTRECV && $XON; # VT100, but works on vt102, too (probably not used on real hardware though)
762 #$INTPEND |= 2 if @PUSARTRECV && $XON; # VT102, 6.5 rxrdy
763
764 # kick off vertical retrace form time to time
765 unless ($CLK & 0x3ff) {
766 $RST |= 4; # vertical retrace
767 }
768
769 # handle video hardware
770
771 unless ($CLK & 0x1fff) {
772 prscr;
773 }
774 }
775
727 # the interrupt logic 776 # the interrupt logic
728 $x = $INTPEND & ~$INTMASK; 777 $x = $INTPEND & ~$INTMASK;
729
730 if (($RST || $x) && $IFF) { 778 if (($RST || $x) && $IFF) {
731 # rst 1 kbd data available 779 # rst 1 kbd data available
732 # rst 2 pusart xmit+recv flag 780 # rst 2 pusart xmit+recv flag
733 # rst 4 vertical retrace 781 # rst 4 vertical retrace
734 # 5.5 vt125 mb7 trans ready (serial send?) 782 # 5.5 vt125 mb7 trans ready (serial send?)
… …
751 $M[--$SP] = $PC >> 8; 799 $M[--$SP] = $PC >> 8;
752 $M[--$SP] = $PC & 0xff; 800 $M[--$SP] = $PC & 0xff;
753 $PC = $vec; 801 $PC = $vec;
754 802
755 $IFF = 0; 803 $IFF = 0;
756 }
757
758 # things we do from time too time only
759 unless ($CLK & 0xf) {
760 # do I/O
761
762 unless ($CLK & 0x7ff) {
763
764 # pty/serial I/O
765 unless (@PUSARTRECV || @KQUEUE || !$PTY) {
766 my $rin = ""; (vec $rin, fileno $PTY, 1) = 1;
767
768 if (select $rin, undef, undef, 0) {
769 sysread $PTY, my $buf, 256;
770 push @PUSARTRECV, unpack "C*", $buf;
771 }
772 }
773
774 # keyboard input
775 if ($KBD) {
776 while (select my $rin = "\x01", undef, undef, 0) {
777 sysread STDIN, $STDIN_BUF, 1, length $STDIN_BUF
778 or last;
779 }
780
781 stdin_parse if length $STDIN_BUF;
782 }
783 }
784
785 # kick off various interrupts
786
787 $RST |= 2 if @PUSARTRECV && $XON;# vt100, also works on vt102, probably by accident
788 #$INTPEND |= 2 if @PUSARTRECV && $XON;# real vt102 probably does it this way
789
790 unless ($CLK & 0x3ff) {
791 $RST |= 4; # vertical retrace
792 }
793
794 # handle video hardware
795
796 unless ($CLK & 0x1fff) {
797 prscr;
798 }
799 } 804 }
800} 805}
801 806
802__DATA__ 807__DATA__
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