From 460b78b71042e88ad8035bdb7cb769e81798b359 Mon Sep 17 00:00:00 2001 From: Jeff Tranter Date: Fri, 3 Jul 2015 17:47:29 -0400 Subject: [PATCH] Implement more of 6809. --- 6809.py | 73 +++++++++++++++++++++++++++++++++++++++++++++++++++++---- 1 file changed, 68 insertions(+), 5 deletions(-) diff --git a/6809.py b/6809.py index 3537729..d40ca83 100644 --- a/6809.py +++ b/6809.py @@ -11,7 +11,10 @@ maxLength = 4 # Leadin bytes for multbyte instructions -leadInBytes = [0x10] +leadInBytes = [0x10, 0x11] + +# Notes: +# Not all addressing modes are implemented. # Addressing mode table addressModeTable = { @@ -75,13 +78,73 @@ opcodeTable = { 0xd4 : [ 2, "andb", "direct" ], 0xe4 : [ 2, "andb", "indexed" ], 0xf4 : [ 3, "andb", "extended" ], -0x1C : [ 2, "andcc","imm8" ], +0x1c : [ 2, "andcc","imm8" ], +0x48 : [ 1, "asla", "inherent" ], +0x58 : [ 1, "aslb", "inherent" ], +0x08 : [ 2, "asl", "direct" ], +0x68 : [ 2, "asl", "indexed" ], +0x78 : [ 3, "asl", "extended" ], +0x47 : [ 1, "asra", "inherent" ], +0x57 : [ 1, "asrb", "inherent" ], +0x07 : [ 2, "asr", "direct" ], +0x67 : [ 2, "asr", "indexed" ], +0x77 : [ 3, "asr", "extended" ], +0x85 : [ 2, "bita", "imm8" ], +0x95 : [ 2, "bita", "direct" ], +0xa5 : [ 2, "bita", "indexed" ], +0xb5 : [ 3, "bita", "extended" ], +0xc5 : [ 2, "bitb", "imm8" ], +0xd5 : [ 2, "bitb", "direct" ], +0xe5 : [ 2, "bitb", "indexed" ], +0xf5 : [ 3, "bitb", "extended" ], +0x4f : [ 1, "clra", "inherent" ], +0x5f : [ 1, "clrb", "inherent" ], +0x0f : [ 2, "clr", "direct" ], +0x6f : [ 2, "clr", "indexed" ], +0x7f : [ 3, "clr", "extended" ], +0x81 : [ 2, "cmpa", "imm8" ], +0x91 : [ 2, "cmpa", "direct" ], +0xa1 : [ 2, "cmpa", "indexed" ], +0xb1 : [ 3, "cmpa", "extended" ], +0xc1 : [ 2, "cmpb", "imm8" ], +0xd1 : [ 2, "cmpb", "direct" ], +0xe1 : [ 2, "cmpb", "indexed" ], +0xf1 : [ 3, "cmpb", "extended" ], +0x1083 : [ 4, "cmpd", "imm16" ], +0x1093 : [ 3, "cmpd", "direct" ], +0x10a3 : [ 3, "cmpd", "indexed" ], +0x10b3 : [ 4, "cmpd", "extended" ], +0x118c : [ 4, "cmps", "imm16" ], +0x119c : [ 3, "cmps", "direct" ], +0x11ac : [ 3, "cmps", "indexed" ], +0x11bc : [ 4, "cmps", "extended" ], +0x1183 : [ 4, "cmpu", "imm16" ], +0x1193 : [ 3, "cmpu", "direct" ], +0x11a3 : [ 3, "cmpu", "indexed" ], +0x11b3 : [ 4, "cmpu", "extended" ], +0x8c : [ 3, "cmpx", "imm16" ], +0x9c : [ 2, "cmpx", "direct" ], +0xac : [ 2, "cmpx", "indexed" ], +0xbc : [ 3, "cmpx", "extended" ], +0x108c : [ 4, "cmpy", "imm16" ], +0x109c : [ 3, "cmpy", "direct" ], +0x10ac : [ 3, "cmpy", "indexed" ], +0x10bc : [ 4, "cmpy", "extended" ], +0x43 : [ 1, "coma", "inherent" ], +0x53 : [ 1, "comb", "inherent" ], +0x03 : [ 2, "comb", "direct" ], +0x63 : [ 2, "comb", "indexed" ], +0x73 : [ 3, "comb", "extended" ], +0x3c : [ 2, "cwai", "imm8" ], +0x19 : [ 1, "daa", "inherent" ], +0x4a : [ 1, "deca", "inherent" ], +0x5a : [ 1, "decb", "inherent" ], +0x0a : [ 2, "dec", "direct" ], +0x6a : [ 2, "dec", "indexed" ], +0x7a : [ 3, "dec", "extended" ], 0x26 : [ 2, "bne", "rel8", pcr ], - -0x26 : [ 2, "bne", "rel8", pcr ], - 0x1026 : [ 4, "lbne", "rel16", pcr ], 0x00 : [ 2, "neg", "direct" ],