Jeff
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202374dd09
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Added the PDP-10's four arithmetic flags along with a negate() function -- the first of our functions that actually needs to set those flags
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2017-03-01 17:23:54 -08:00 |
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Jeff
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e870fd6eec
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Fixed the accumulator update logic in all the PDP-10 half-word self-mode instructions, and started work on EXCH, BLT, and MOVE instructions (the BLT is a real odd-ball, and SIMH does some very strange things with the accumulator used by BLT, which we do NOT attempt to replicate; the strangeness is most noticeable when the accumulator is part of the range being transferred)
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2017-03-01 16:00:48 -08:00 |
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Jeff
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3508b1050e
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Started work on v1.34.2: More PDP-10 opcode handlers
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2017-03-01 12:26:57 -08:00 |
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Jeff
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ac06857b10
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Updated home page
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2017-02-28 19:45:04 -08:00 |
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Jeff Parsons
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5f363c97b8
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Picked up the updated blog post about the PDP-10
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2017-02-28 19:39:49 -08:00 |
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Jeff Parsons
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13d7acc9cb
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New blog post about the PDP-10
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2017-02-28 19:16:21 -08:00 |
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Jeff Parsons
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639eb6e945
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Picked up published 1.34.1 changes
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2017-02-28 17:06:29 -08:00 |
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Jeff Parsons
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32ff93ef3e
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Promoted version to 1.34.1
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2017-02-28 16:36:15 -08:00 |
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Jeff Parsons
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ce3479c422
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Promoted version to 1.34.1
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2017-02-28 16:35:16 -08:00 |
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Jeff Parsons
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51274c1a30
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Make sure all machines support JSON-encoded resources with either 'longs' or 'data' arrays
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2017-02-28 16:20:49 -08:00 |
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Jeff Parsons
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f0bfe81cc9
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Added more half-word opcode tests
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2017-02-28 15:46:47 -08:00 |
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Jeff Parsons
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cafd7c493c
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Finished writing all the half-word move permutations, now it's time to test them all (ugh)
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2017-02-28 11:02:15 -08:00 |
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Jeff Parsons
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d7b8122a40
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All HLL and HRL permutations implemented now (up next: HRR and HLR)
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2017-02-28 10:24:29 -08:00 |
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Jeff Parsons
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a1dba6a679
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Added support for assembling PDP-10 I/O instructions
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2017-02-28 09:14:56 -08:00 |
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Jeff Parsons
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c4f7262e71
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Cleaned up the integer base conversion code, and expanded the PDP-10 register dump
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2017-02-27 19:18:19 -08:00 |
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Jeff Parsons
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caa5fd6c86
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Tighten up disassembler output
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2017-02-27 18:20:34 -08:00 |
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Jeff Parsons
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8863f1127c
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Added rudimentary PDP-10 assembler capability to the built-in debugger
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2017-02-27 18:06:08 -08:00 |
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Jeff Parsons
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06324dd499
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Minor PDP-10 debugger alignment change
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2017-02-27 12:27:23 -08:00 |
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Jeff Parsons
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17e807ecb6
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Tested a couple half-word instructions (so far, so good)
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2017-02-27 12:25:13 -08:00 |
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Jeff Parsons
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0255b7b891
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Implemented all four primary half-word moves (HLL, HLR, HRL, HRR) but none of the flavors (Z, O, E); need to test the primary instructions first
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2017-02-27 09:50:28 -08:00 |
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Jeff Parsons
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aecd943c52
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Added support for PDP-10 RAM images
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2017-02-26 20:37:16 -08:00 |
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Jeff Parsons
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6cf141baf9
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getOpcode() can now handle infinite indirections without starving the emulator
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2017-02-26 12:17:21 -08:00 |
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Jeff Parsons
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ed4c031035
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Implemented my first 4 PDP-10 opcodes (HLL, HLLI, HLLM, HLLS)
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2017-02-26 10:51:49 -08:00 |
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Jeff Parsons
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0451774bc6
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Added preliminary PDP-10 opcode decoding
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2017-02-26 09:25:44 -08:00 |
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Jeff Parsons
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e3ab5b1ed5
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Added preliminary PDP-10 opcode decoding
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2017-02-26 09:13:16 -08:00 |
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Jeff Parsons
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3e30bde786
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Some PDP-10 disassembler clean-up
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2017-02-25 21:19:41 -08:00 |
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Jeff Parsons
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cb4d054ead
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Added preliminary first-order opcode dispatch table
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2017-02-25 16:21:21 -08:00 |
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Jeff Parsons
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b628219f5c
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Used the new PDP-10 disassembler in test mode to help generate the cpuops.js skeleton
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2017-02-25 13:28:47 -08:00 |
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Jeff Parsons
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10181fdc45
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Added I/O instructions to PDP-10 disassembler
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2017-02-25 10:45:25 -08:00 |
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Jeff Parsons
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3b27f45b76
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Added disassembly of basic PDP-10 operations
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2017-02-24 23:15:53 -08:00 |
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Jeff Parsons
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da3bb4740c
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Fixed PDP-10 test panel updates
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2017-02-24 13:09:46 -08:00 |
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Jeff Parsons
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ef70ed74b3
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Added support for parsing of values (ie, integers) greater than 32 bits, and fixed PDP-10 Bus writes (parameter order differs from other emulators)
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2017-02-24 13:07:38 -08:00 |
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Jeff Parsons
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c0de732f76
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Changed toStrBase() to accept a number of bits rather than a number of bytes, because bytes aren't always 8 bits (see PDP-10)
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2017-02-24 10:58:56 -08:00 |
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Jeff Parsons
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884b74d96f
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Cleaned up PDP register dump code
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2017-02-23 16:56:08 -08:00 |
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Jeff Parsons
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8320f58d44
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Documentation updates to accommodate the PDP-10 work that's starting now
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2017-02-23 15:14:51 -08:00 |
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Jeff Parsons
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c25ad00c41
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Minimal infrastructure for instantiating a PDP-10 test machine
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2017-02-23 11:34:19 -08:00 |
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Jeff
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0aa88da301
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Updated information on PDP timings
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2017-02-23 09:02:48 -08:00 |
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Jeff
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2ed076503f
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Since writeBitsMemory() must preserve unwritten bits, it can't use bit-wise operators (unless of course no bits above bit 31 are set, but it's not clear checking for that would be a win)
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2017-02-22 15:33:18 -08:00 |
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Jeff Parsons
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b8b774696b
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Since writeBitsMemory() must preserve unwritten bits, it can't use bit-wise operators (unless of course no bits above bit 31 are set, but it's not clear checking for that would be a win)
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2017-02-19 15:49:08 -08:00 |
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Jeff Parsons
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ba7de38fbf
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Created PDP-10 skeleton
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2017-02-19 15:22:58 -08:00 |
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Jeff Parsons
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b1d16c979a
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Removed obsolete version of Int36 (using signed integers internally); sticking with unsigned integers internally not only simplifies some of the existing logic, but will make it easier to add logical operations later (eg, AND, OR, XOR, etc)
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2017-02-18 09:36:47 -08:00 |
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Jeff Parsons
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acdf89ec54
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Make Int36 toDecimal() more paranoid (we want perfect output, or no output at all)
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2017-02-18 09:28:43 -08:00 |
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Jeff Parsons
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c1ab8918bd
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Make Int36 toDecimal() more paranoid (we want perfect output, or no output at all)
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2017-02-18 09:23:45 -08:00 |
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Jeff Parsons
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7770a6bffe
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Added an "early out" for Int36 division
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2017-02-18 09:17:08 -08:00 |
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Jeff Parsons
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3f65a1b770
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Simplify Int36 bit handling (only affects division)
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2017-02-18 08:50:24 -08:00 |
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Jeff Parsons
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242fa1545c
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Put back some redirects that external sites are using
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2017-02-17 15:53:46 -08:00 |
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Jeff Parsons
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55bb0252b7
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Be more specific about detected errors
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2017-02-17 13:38:34 -08:00 |
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Jeff Parsons
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cff039f6a5
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Added the reduce() function, to reduce 72-bit extended values to 36-bit values, magnitude permitting
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2017-02-17 13:31:17 -08:00 |
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Jeff Parsons
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689adca2a7
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Comment updates
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2017-02-17 12:15:48 -08:00 |
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Jeff Parsons
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688fa635c8
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Clarified the operation of negate(), added an explicit extend(), and made toDecimal() more robust (in case we end up with goofy values)
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2017-02-17 11:52:36 -08:00 |
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