Added disassembly of basic PDP-10 operations

2017-02-24 23:15:53 -08:00 · 2017-02-24 23:15:53 -08:00 · 3b27f45b76
commit 3b27f45b76
parent da3bb4740c
7 changed files with 511 additions and 381 deletions
--- a/modules/pdp10/lib/defines.js
+++ b/modules/pdp10/lib/defines.js
@ -99,16 +99,22 @@ var PDP10 = {
    ADDR_LIMIT:     Math.pow(2, 18),
    DATA_INVALID:   -1,
    DATA_LIMIT:     Math.pow(2, 36),
+
    /*
-     * Assorted common opcodes
+     * Opcode definitions
     */
    OPCODE: {
-        INSMASK:    0o777000000000,
-        ACCMASK:    0o000740000000,
-        HALTMASK:   0o777740000000,
-        HALT:       0o254200000000,
+        OPMASK:     0o777,              // operation mask
+        OPMODE:     0o774,              // operation with mode
+        OPCOMP:     0o770,              // operation with compare
+        OPTEST:     0o611,              // operation with test
+        OPUUO:      0o700,              // unimplemented user operation (UUO) mask
+        OPSHIFT:    Math.pow(2, 27),    // operation shift
+        FNSHIFT:    Math.pow(2, 23),    // function shift
+        FNHALT:     0o5304,             // function code for HALT
        INVALID:    0o777777777777      // TODO: Resolve
    },
+
    /*
     * Internal operation state flags
     */