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Added preliminary first-order opcode dispatch table

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Jeff Parsons 2017-02-25 16:21:21 -08:00 • committed by Jeff Parsons
commit cb4d054ead
4 changed files with 665 additions and 22 deletions
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modules/pdp10/lib/defines.js
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@ -108,13 +108,14 @@ var PDP10 = {
OPMODE: 0o77400, // operation with mode
OPCOMP: 0o77000, // operation with compare
OPTEST: 0o71100, // operation with test
OPIO: 0o70034, // input-output instructions
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)
SHIFT: Math.pow(2, 27), // operation code shift
Y_MASK: 0o777777,
X_SHIFT: 18,
X_MASK: 0o17,