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Started work on PDP-10 logical operations

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Jeff 2017-03-03 11:30:34 -08:00 • committed by Jeff Parsons
commit 616f9d4cda
7 changed files with 468 additions and 503 deletions
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10
modules/pdp10/lib/defines.js
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@ -103,10 +103,11 @@ var PDP10 = {
ADDR_INVALID: -1,
ADDR_LIMIT: Math.pow(2, 18),
ADDR_MASK: Math.pow(2, 18) - 1,
DATA_INVALID: -1,
DATA_LIMIT: Math.pow(2, 36),
WORD_SHIFT: Math.pow(2, 18),
WORD_MASK: 0o777777,
WORD_INVALID: -1,
WORD_LIMIT: Math.pow(2, 36),
WORD_MASK: Math.pow(2, 36) - 1,
HALF_SHIFT: Math.pow(2, 18),
HALF_MASK: Math.pow(2, 18) - 1,
/*
* 18-bit and 36-bit largest positive (and smallest negative) values; however, since we store all
@ -117,6 +118,7 @@ var PDP10 = {
MAX_POS36: Math.pow(2, 35) - 1, // 34,359,738,367 (377777 777777)
MIN_NEG36: Math.pow(2, 35), // -34,359,738,368 (400000 000000)
TWO_POW36: Math.pow(2, 36), // the two's complement of a 36-bit value is (value? TWO_POW36 - value : 0)
TWO_POW32: Math.pow(2, 32),
/*
* PDP-10 opcodes are 36-bit values, most of which use the following layout: