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Comparing vt102/vt102 (file contents):
Revision 1.18 by root, Wed Dec 3 02:16:45 2014 UTC vs.
Revision 1.21 by root, Wed Dec 3 08:57:58 2014 UTC

… …
27shift, ($VT102 = 0), ($AVO = 0) if $ARGV[0] =~ /^-?-vt100$/; 27shift, ($VT102 = 0), ($AVO = 0) if $ARGV[0] =~ /^-?-vt100$/;
28shift, ($VT102 = 0) if $ARGV[0] =~ /^-?-vt100\+avo$/; 28shift, ($VT102 = 0) if $ARGV[0] =~ /^-?-vt100\+avo$/;
29shift if $ARGV[0] =~ /^-?-vt102$/; 29shift if $ARGV[0] =~ /^-?-vt102$/;
30shift, ($VT131 = 1) if $ARGV[0] =~ /^-?-vt131$/; 30shift, ($VT131 = 1) if $ARGV[0] =~ /^-?-vt131$/;
31 31
32# vt100 wps = word processing roms
33# vt101 = vt102 - avo, but custom rom? really?
34# vt103 = vt100 + tu58 tape drive
35# vt125 = vt100 + gpo graphics processor
36# vt132 = vt100 + avo, stp
37# vt180 = vt100 + z80 cp/m
38
32if ($ARGV[0] =~ /^-/) { 39if ($ARGV[0] =~ /^-/) {
33 die <<EOF; 40 die <<EOF;
34 41
35VT102, A VT100/101/102/131 SIMULATOR 42VT102, A VT100/102/131 SIMULATOR
36 43
37Usage: 44Usage:
38 45
39 $0 [option] [program [args]] 46 $0 [option] [program [args]]
40 47
… …
399$op[0xb0 + $_] = 'sf8 $A |= ' . $reg[$_] for 0..7; # ora 406$op[0xb0 + $_] = 'sf8 $A |= ' . $reg[$_] for 0..7; # ora
400$op[0xb8 + $_] = 'sf $x = $A - ' . $reg[$_] for 0..7; # cmp 407$op[0xb8 + $_] = 'sf $x = $A - ' . $reg[$_] for 0..7; # cmp
401# possible todo: optimize ora a, maybe xra a 408# possible todo: optimize ora a, maybe xra a
402 409
403$op[0xc6] = 'sf $A += IMM8'; # adi 410$op[0xc6] = 'sf $A += IMM8'; # adi
404# ce ADI NYI 411# ce ACI NYI, apparently unused
405$op[0xd6] = 'sf $A -= IMM8'; # sui 412$op[0xd6] = 'sf $A -= IMM8'; # sui
406# de SBI NYI 413# de SBI NYI, apparently unused
407$op[0xe6] = 'sf8 $A &= IMM8'; # ani 414$op[0xe6] = 'sf8 $A &= IMM8'; # ani
408$op[0xee] = 'sf8 $A ^= IMM8'; # xri 415$op[0xee] = 'sf8 $A ^= IMM8'; # xri
409$op[0xf6] = 'sf8 $A |= IMM8'; # ori 416$op[0xf6] = 'sf8 $A |= IMM8'; # ori
410$op[0xfe] = 'sf $A - IMM8'; # cpi 417$op[0xfe] = 'sf $A - IMM8'; # cpi
411 418
… …
429$op[0xc9] = 'JMP POP + POP * 256'; # ret 436$op[0xc9] = 'JMP POP + POP * 256'; # ret
430 437
431$op[0xc7 + $_ * 8] = "JMP $_ * 8" for 0..7; # rst 438$op[0xc7 + $_ * 8] = "JMP $_ * 8" for 0..7; # rst
432 439
433$op[0xe9] = 'JMP $H * 256 + $L'; # pchl 440$op[0xe9] = 'JMP $H * 256 + $L'; # pchl
434# f9 SPHL NYI 441# f9 SPHL NYI, apparently unused
435 442
436$op[0x37] = '$FC = 1 '; # stc 443$op[0x37] = '$FC = 1 '; # stc
437$op[0x3f] = '$FC = !$FC'; # cmc 444$op[0x3f] = '$FC = !$FC'; # cmc
438 445
439$op[0xd3] = 'OUT'; # out 446$op[0xd3] = 'OUT'; # out
440$op[0xdb] = 'IN'; # in 447$op[0xdb] = 'IN'; # in
441 448
442$op[0xeb] = '($D, $E, $H, $L) = ($H, $L, $D, $E)'; # xchg 449$op[0xeb] = '($D, $E, $H, $L) = ($H, $L, $D, $E)'; # xchg
443 450
444# e3 xthl NYI # @ 917b, hl <-> (sp) 451# e3 xthl NYI # @ 917b in e69, hl <-> (sp)
445 452
446$op[0x20] = '$A = $INTPEND * 16 + $INTMASK + ($IFF && 8)'; # rim (incomplete) 453$op[0x20] = '$A = $INTPEND * 16 + $INTMASK + ($IFF && 8)'; # rim (incomplete)
447$op[0x30] = '$INTMASK = $A & 7 if $A & 8'; # sim (incomplete) 454$op[0x30] = '$INTMASK = $A & 7 if $A & 8'; # sim (incomplete)
448 455
449$op[0xf3] = '$IFF = 0'; # DI 456$op[0xf3] = '$IFF = 0'; # DI
… …
683my $slave = $PTY->slave; 690my $slave = $PTY->slave;
684 691
685$PTY->set_winsize (24, 80); 692$PTY->set_winsize (24, 80);
686 693
687unless (fork) { 694unless (fork) {
695 $ENV{LC_ALL} = "C";
688 $ENV{TERM} = $VT102 ? "vt102" : "vt100"; 696 $ENV{TERM} = $VT102 ? "vt102" : "vt100";
689 697
690 close $PTY; 698 close $PTY;
691 699
692 open STDIN , "<&", $slave; 700 open STDIN , "<&", $slave;
… …
706 714
707############################################################################# 715#############################################################################
708# the actual hardware simulator 716# the actual hardware simulator
709 717
710my @ICACHE; # compiled instruction cache 718my @ICACHE; # compiled instruction cache
719
720my $POWERSAVE; # powersave counter
721
722my $RIN; # libev for the less well-off
723
724(vec $RIN, 0, 1) = 1 if $KBD;
725(vec $RIN, fileno $PTY, 1) = 1 if $PTY;
711 726
712while () { 727while () {
713 # execute extended basic blocks 728 # execute extended basic blocks
714 $PC = ($ICACHE[$PC] ||= do { 729 $PC = ($ICACHE[$PC] ||= do {
715 my $pc = $PC; 730 my $pc = $PC;
… …
751 # things we do from time to time only 766 # things we do from time to time only
752 unless ($CLK & 0xf) { 767 unless ($CLK & 0xf) {
753 # do I/O 768 # do I/O
754 769
755 unless ($CLK & 0xfff) { 770 unless ($CLK & 0xfff) {
756 771 if (select $x = $RIN, undef, undef, $POWERSAVE < 100 ? 0 : 0.2) {
757 # pty/serial I/O 772 # pty/serial I/O
758 unless ((@PUSARTRECV >= 128) || @KQUEUE || !$PTY) { 773 if ($PTY && (vec $x, fileno $PTY, 1) && (@PUSARTRECV < 128) && !@KQUEUE) {
759 my $rin = ""; (vec $rin, fileno $PTY, 1) = 1; 774 my $rin = ""; (vec $rin, fileno $PTY, 1) = 1;
760 775
761 if (select $rin, undef, undef, 0) { 776 if (select $rin, undef, undef, 0) {
762 sysread $PTY, my $buf, 256; 777 sysread $PTY, my $buf, 256;
778
779 # linux don't do cs7 and/or parity anymore, so we need to filter
780 # out xoff characters to avoid freezes.
763 push @PUSARTRECV, unpack "C*", $buf; 781 push @PUSARTRECV, grep { ($_ & 0x7f) != 0x13 } unpack "C*", $buf;
782 }
764 } 783 }
765 }
766 784
767 # keyboard input 785 # keyboard input
768 if ($KBD) { 786 if ($KBD && (vec $x, 0, 1)) {
769 while (select my $rin = "\x01", undef, undef, 0) { 787 while (select my $rin = "\x01", undef, undef, 0) {
770 sysread STDIN, $STDIN_BUF, 1, length $STDIN_BUF 788 sysread STDIN, $STDIN_BUF, 1, length $STDIN_BUF
771 or last; 789 or last;
790 }
791
792 stdin_parse if length $STDIN_BUF;
793 $POWERSAVE = 0;
772 } 794 }
773 795
774 stdin_parse if length $STDIN_BUF; 796 $POWERSAVE = 0;
797 } else {
798 ++$POWERSAVE;
775 } 799 }
776 } 800 }
777 801
778 # kick off various interrupts 802 # kick off various interrupts
779 803

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