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Implemented my first 4 PDP-10 opcodes (HLL, HLLI, HLLM, HLLS)

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Jeff Parsons 2017-02-26 10:51:49 -08:00 • committed by Jeff Parsons
commit ed4c031035
6 changed files with 1428 additions and 1371 deletions
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6
modules/pdp10/lib/defines.js
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@ -100,6 +100,7 @@ var PDP10 = {
ADDR_MASK: Math.pow(2, 18) - 1,
DATA_INVALID: -1,
DATA_LIMIT: Math.pow(2, 36),
RHWORD_MASK: 0o777777,
/*
* PDP-10 opcodes are 36-bit values, most of which use the following layout:
@ -142,10 +143,11 @@ var PDP10 = {
OPIO: 0o70034, // input-output operation
OPUUO: 0o70000, // unimplemented user operation (UUO) mask
OPSHIFT: Math.pow(2, 21), // operation shift
FNSHIFT: 23, // accumulator/function shift
FNMASK: 0o17, // accumulator/function mask (after shift)
IOSHIFT: Math.pow(2, 26), // input-output device code shift
IOMASK: 0o177, // input-output device code mask (after shift)
ACSHIFT: Math.pow(2, 23), // used to isolate the high 13 bits, with A starting at bit 0
A_SHIFT: 23, // A shift
A_MASK: 0o17, // A mask (after shift)
I_BIT: 0o20000000, // indirect bit
X_SHIFT: 18, // X shift
X_MASK: 0o17, // X mask (after shift)