2015-07-03 02:03:50 +00:00
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##########################################################################
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#
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# Processor specific code
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# CPU = "6809"
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# Description = "Motorola 6809 8-bit microprocessor."
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# DataWidth = 8 # 8-bit data
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# AddressWidth = 16 # 16-bit addresses
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# Maximum length of an instruction (for formatting purposes)
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maxLength = 4
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# Leadin bytes for multbyte instructions
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2015-07-03 21:47:29 +00:00
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leadInBytes = [0x10, 0x11]
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# Notes:
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# Not all addressing modes are implemented.
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2015-07-03 02:03:50 +00:00
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# Addressing mode table
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addressModeTable = {
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"inherent" : "",
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"imm8" : "#${0:02X}",
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"imm16" : "#${0:02X}{1:02X}",
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"direct" : "${0:02X}",
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"indexed" : "${0:02X},x",
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"extended" : "${0:02X}{1:02X}",
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"rel8" : "${0:04X}",
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"rel16" : "${0:02X}{1:02X}",
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2015-07-03 21:57:02 +00:00
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"r1,r2" : "${0:02X}", # Not fully implemented
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2015-07-03 02:03:50 +00:00
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# Extended Indirect
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# Relative Indirect
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# Zero-offset Indexed
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# Zero-offset Indexed Indirect
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# Constant-offset Indexed
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# Constant-offset Indexed Indirect
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# Accumulator-offset Indexed
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# Accumulator-offset Indexed Indirect
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# Auto-Increment Indexed
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# Auto-Increment Indexed Indirect
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# Auto-Decrement Indexed
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# Auto-Decrement Indexed Indirect
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}
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# Op Code Table
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# Key is numeric opcode (possibly multiple bytes)
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# Value is a list:
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# # bytes
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# mnemonic
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# addressing mode.
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# flags (e.g. pcr)
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opcodeTable = {
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0x3a : [ 1, "abx", "inherent" ],
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0x89 : [ 2, "adca", "imm8" ],
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0x99 : [ 2, "adca", "direct" ],
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0xa9 : [ 2, "adca", "indexed" ],
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0xb9 : [ 3, "adca", "extended" ],
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0xc9 : [ 2, "adcb", "imm8" ],
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0xd9 : [ 2, "adcb", "direct" ],
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0xe9 : [ 2, "adcb", "indexed" ],
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0xf9 : [ 3, "adcb", "extended" ],
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0x8b : [ 2, "adda", "imm8" ],
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0x9b : [ 2, "adda", "direct" ],
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0xab : [ 2, "adda", "indexed" ],
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0xbb : [ 3, "adda", "extended" ],
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0xcb : [ 2, "addb", "imm8" ],
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0xdb : [ 2, "addb", "direct" ],
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0xeb : [ 2, "addb", "indexed" ],
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0xfb : [ 3, "addb", "extended" ],
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0xc3 : [ 3, "addd", "imm16" ],
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0xd3 : [ 2, "addd", "direct" ],
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0xe3 : [ 2, "addd", "indexed" ],
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0xf3 : [ 3, "addd", "extended" ],
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0x84 : [ 2, "anda", "imm8" ],
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0x94 : [ 2, "anda", "direct" ],
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0xa4 : [ 2, "anda", "indexed" ],
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0xb4 : [ 3, "anda", "extended" ],
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0xc4 : [ 2, "andb", "imm8" ],
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0xd4 : [ 2, "andb", "direct" ],
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0xe4 : [ 2, "andb", "indexed" ],
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0xf4 : [ 3, "andb", "extended" ],
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2015-07-03 21:47:29 +00:00
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0x1c : [ 2, "andcc","imm8" ],
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0x48 : [ 1, "asla", "inherent" ],
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0x58 : [ 1, "aslb", "inherent" ],
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0x08 : [ 2, "asl", "direct" ],
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0x68 : [ 2, "asl", "indexed" ],
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0x78 : [ 3, "asl", "extended" ],
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0x47 : [ 1, "asra", "inherent" ],
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0x57 : [ 1, "asrb", "inherent" ],
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0x07 : [ 2, "asr", "direct" ],
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0x67 : [ 2, "asr", "indexed" ],
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0x77 : [ 3, "asr", "extended" ],
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0x85 : [ 2, "bita", "imm8" ],
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0x95 : [ 2, "bita", "direct" ],
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0xa5 : [ 2, "bita", "indexed" ],
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0xb5 : [ 3, "bita", "extended" ],
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0xc5 : [ 2, "bitb", "imm8" ],
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0xd5 : [ 2, "bitb", "direct" ],
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0xe5 : [ 2, "bitb", "indexed" ],
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0xf5 : [ 3, "bitb", "extended" ],
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0x4f : [ 1, "clra", "inherent" ],
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0x5f : [ 1, "clrb", "inherent" ],
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0x0f : [ 2, "clr", "direct" ],
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0x6f : [ 2, "clr", "indexed" ],
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0x7f : [ 3, "clr", "extended" ],
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0x81 : [ 2, "cmpa", "imm8" ],
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0x91 : [ 2, "cmpa", "direct" ],
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0xa1 : [ 2, "cmpa", "indexed" ],
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0xb1 : [ 3, "cmpa", "extended" ],
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0xc1 : [ 2, "cmpb", "imm8" ],
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0xd1 : [ 2, "cmpb", "direct" ],
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0xe1 : [ 2, "cmpb", "indexed" ],
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0xf1 : [ 3, "cmpb", "extended" ],
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0x1083 : [ 4, "cmpd", "imm16" ],
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0x1093 : [ 3, "cmpd", "direct" ],
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0x10a3 : [ 3, "cmpd", "indexed" ],
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0x10b3 : [ 4, "cmpd", "extended" ],
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0x118c : [ 4, "cmps", "imm16" ],
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0x119c : [ 3, "cmps", "direct" ],
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0x11ac : [ 3, "cmps", "indexed" ],
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0x11bc : [ 4, "cmps", "extended" ],
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0x1183 : [ 4, "cmpu", "imm16" ],
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0x1193 : [ 3, "cmpu", "direct" ],
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0x11a3 : [ 3, "cmpu", "indexed" ],
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0x11b3 : [ 4, "cmpu", "extended" ],
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0x8c : [ 3, "cmpx", "imm16" ],
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0x9c : [ 2, "cmpx", "direct" ],
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0xac : [ 2, "cmpx", "indexed" ],
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0xbc : [ 3, "cmpx", "extended" ],
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0x108c : [ 4, "cmpy", "imm16" ],
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0x109c : [ 3, "cmpy", "direct" ],
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0x10ac : [ 3, "cmpy", "indexed" ],
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0x10bc : [ 4, "cmpy", "extended" ],
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0x43 : [ 1, "coma", "inherent" ],
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0x53 : [ 1, "comb", "inherent" ],
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0x03 : [ 2, "comb", "direct" ],
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0x63 : [ 2, "comb", "indexed" ],
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0x73 : [ 3, "comb", "extended" ],
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0x3c : [ 2, "cwai", "imm8" ],
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0x19 : [ 1, "daa", "inherent" ],
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0x4a : [ 1, "deca", "inherent" ],
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0x5a : [ 1, "decb", "inherent" ],
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0x0a : [ 2, "dec", "direct" ],
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0x6a : [ 2, "dec", "indexed" ],
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0x7a : [ 3, "dec", "extended" ],
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2015-07-03 21:57:02 +00:00
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0x88 : [ 2, "eora", "imm8" ],
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0x98 : [ 2, "eora", "direct" ],
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0xa8 : [ 2, "eora", "direct" ],
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0xb8 : [ 3, "eora", "extended" ],
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0xc8 : [ 2, "eorb", "imm8" ],
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0xd8 : [ 2, "eorb", "direct" ],
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0xe8 : [ 2, "eorb", "direct" ],
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0xf8 : [ 3, "eorb", "extended" ],
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0x1e : [ 2, "exg", "r1,r2" ],
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0x4c : [ 1, "inca", "inherent" ],
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0x5c : [ 1, "incb", "inherent" ],
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0x0c : [ 2, "inc", "indexed" ],
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0x6c : [ 2, "inc", "direct" ],
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0x7c : [ 3, "inc", "extended" ],
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0x0e : [ 2, "jmp", "indexed" ],
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0x6e : [ 2, "jmp", "direct" ],
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0x7e : [ 3, "jmp", "extended" ],
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0x9d : [ 2, "jsr", "indexed" ],
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0xad : [ 2, "jsr", "direct" ],
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0xbd : [ 3, "jsr", "extended" ],
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2015-07-03 02:03:50 +00:00
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0x26 : [ 2, "bne", "rel8", pcr ],
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0x1026 : [ 4, "lbne", "rel16", pcr ],
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0x00 : [ 2, "neg", "direct" ],
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0xff : [ 3, "stu", "extended" ],
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}
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# End of processor specific code
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##########################################################################
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