Jeff
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6e0e489bee
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Cleaned up the expression parser, fixed some PDP-10 evaluation errors, and added support unary minus
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2017-03-16 10:30:56 -07:00 |
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Jeff
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0e8e2ed4a2
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Improved fixup handling for better MACRO-10 support
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2017-03-16 00:32:30 -07:00 |
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Jeff
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3f8705ad98
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Successfully assembled my first MACRO-10 source file (DAKAD.MAC)
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2017-03-14 14:44:03 -07:00 |
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Jeff
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e1f37c8275
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More MACRO-10 fixes
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2017-03-13 17:44:01 -07:00 |
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Jeff
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9ac0ffe679
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Perform the documented encoding of SIXBIT character data for MACRO-10
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2017-03-12 11:56:15 -07:00 |
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Jeff
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05e09699dd
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Cleaned up expression evaluation for improved compatibility with MACRO-10
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2017-03-12 11:44:38 -07:00 |
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Jeff
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e2e018af67
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More MACRO-10 support
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2017-03-11 23:30:06 -08:00 |
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Jeff
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fcee8a2838
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Added support for future PDP-10 MACRO-10 assembler
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2017-03-10 10:28:32 -08:00 |
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Jeff
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3a9cd5cf04
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Code cleanup
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2017-03-09 17:49:54 -08:00 |
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Jeff
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0dc6b7276b
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Added lots of PDP-10 compare/increment/decrement/skip/jump instructions
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2017-03-09 12:30:51 -08:00 |
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Jeff
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70cd954974
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Debuggers need to handle negative values a bit better
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2017-03-08 16:48:25 -08:00 |
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Jeff
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65eb821710
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Well, apparently the PDP-10 MUL instruction really DOES store the high-order word first, and it only stores the low-order word if the destination is an accumulator (weird)
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2017-03-07 14:09:24 -08:00 |
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Jeff
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38a598d21e
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Added PDP-10 ADD operations
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2017-03-06 23:36:48 -08:00 |
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Jeff
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1b4129d7ad
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Added some ASHC tests
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2017-03-06 17:18:41 -08:00 |
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Jeff
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04ae721eb6
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Updated the extended logical operations (LSHC and ROTC) to treat the result as a 71-bit result, and ASHC to treat it as a 70-bit result
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2017-03-06 16:42:29 -08:00 |
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Jeff
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3d4795bbe4
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Updated the Int36 class with support for both signed 71-bit values (my original double-length format) and 70-bit values consisting of two signed 35-bit values (DEC's double-length format)
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2017-03-06 15:48:31 -08:00 |
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Jeff
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6b68525f24
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Fixed minor ASHC bug
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2017-03-05 16:19:25 -08:00 |
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Jeff
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286a122b05
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Implemented (but have not yet tested) ASHC opcode for PDP-10
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2017-03-05 14:14:14 -08:00 |
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Jeff
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61e64bf3fc
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Sync'ed some of the constants used in the pdp10 and int36 modules
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2017-03-05 10:19:04 -08:00 |
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Jeff
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234e8871ba
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Added "lsh" and "rot" commands to the Int36 command-line tool to mimic the PDP-10 opcodes and test their logic
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2017-03-05 10:04:18 -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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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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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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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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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 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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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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Jeff Parsons
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80756041f3
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Int36.toDecimal() now supports any value up to 72 bits
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2017-02-16 15:58:50 -08:00 |
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Jeff Parsons
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4de50acdf1
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Added alternate Int36 addition/subtraction overflow/underflow detection logic as a verification check
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2017-02-16 14:05:05 -08:00 |
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Jeff Parsons
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048a10aac6
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Fixed toDecimal() for large extended Int36 values (although there are still some very large values that trigger an error)
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2017-02-15 23:43:23 -08:00 |
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Jeff Parsons
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4d94b5812b
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Cleaned up divExtended()
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2017-02-15 22:27:03 -08:00 |
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Jeff Parsons
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40311e82b2
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Added Int36 overflow/underflow detection
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2017-02-15 22:20:07 -08:00 |
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Jeff Parsons
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798fae1898
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Updated Int36 comments
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2017-02-15 16:35:15 -08:00 |
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Jeff Parsons
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6bc0d8ac49
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Trying a second approach to the Int36 class that sticks to unsigned numbers internally (only downside so far is that the detecting arithmetic overflow/underflow is more work and hasn't been implemented yet)
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2017-02-15 16:16:32 -08:00 |
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Jeff Parsons
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259dd7d66f
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Updated comments
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2017-02-15 11:54:16 -08:00 |
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Jeff Parsons
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3a33ffdd50
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A few more toDecimal() fixes
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2017-02-14 17:55:41 -08:00 |
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Jeff Parsons
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656f7e6796
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Numerous fixes to Int36 class, with improved support for 72-bit mul(), div(), and toString()/toDecimal()
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2017-02-14 13:12:27 -08:00 |
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Jeff Parsons
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7131e471ac
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Implemented 36-bit division with support for (up to) 72-bit dividends
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2017-02-13 14:04:00 -08:00 |
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Jeff Parsons
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a0ddaa2239
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Implemented 36-bit multiplication with support for (up to) 72-bit results
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2017-02-13 11:55:29 -08:00 |
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Jeff Parsons
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f03a5686e5
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Implemented 36-bit multiplication with support for (up to) 72-bit results
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2017-02-13 11:46:58 -08:00 |
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Jeff Parsons
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bfab39cf5a
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Skeleton of an Int36 class that may be used to support 36-bit integers in a PDP-10 simulation
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2017-02-12 11:21:49 -08:00 |
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