From 9fbe044cbff12b635e535a36abcf2fb2a03dee11 Mon Sep 17 00:00:00 2001 From: Benoit Giannangeli Date: Fri, 3 Feb 2017 08:18:06 +0100 Subject: Dispatch loop --- src/lopcodes.js | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) (limited to 'src/lopcodes.js') diff --git a/src/lopcodes.js b/src/lopcodes.js index b7dfb0f..8df67a3 100644 --- a/src/lopcodes.js +++ b/src/lopcodes.js @@ -86,6 +86,16 @@ const MAXARG_A = ((1 << SIZE_A) - 1); const MAXARG_B = ((1 << SIZE_B) - 1); const MAXARG_C = ((1 << SIZE_C) - 1); +const BITRK = (1 << (SIZE_B - 1)); + +const ISK = function (x) { + return x & BITRK; +}; + +const INDEXK = function (r) { + return r & ~BITRK; +} + module.exports = { OpCodes: OpCodes, SIZE_C: SIZE_C, @@ -105,5 +115,8 @@ module.exports = { MAXARG_Ax: MAXARG_Ax, MAXARG_A: MAXARG_A, MAXARG_B: MAXARG_B, - MAXARG_C: MAXARG_C + MAXARG_C: MAXARG_C, + BITRK: BITRK, + ISK: ISK, + INDEXK: INDEXK }; \ No newline at end of file -- cgit v1.2.3-54-g00ecf