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6811.py
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6811.py
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##########################################################################
#
# Processor specific code
# CPU = "6811"
# Description = "FreeScale 68HC11 8-bit microcontroller."
# DataWidth = 8 # 8-bit data
# AddressWidth = 16 # 16-bit addresses
# Notes:
# 1. Some instructions use the same opcode (e.g. bcs and blo).
# Disassembly will use whatever is listed last in this table.
# 2. brset/brclr instructions do not yet output correct branch address.
# Maximum length of an instruction (for formatting purposes)
maxLength = 5
# Leadin bytes for multbyte instructions
leadInBytes = [0x18, 0x1a, 0xcd]
# Addressing mode table
addressModeTable = {
"inherent" : "",
"immediate" : "#${0:02X}",
"immediatex" : "#${0:02X}{1:02X}",
"direct" : "${0:02X}",
"direct2" : "*${0:02X} ${1:02X}",
"direct3" : "*${0:02X} ${1:02X} ${2:04X}",
"extended" : "${0:02X}{1:02X}",
"indexedx" : "${0:02X},x",
"indexedx2" : "${0:02X},x ${1:02X}",
"indexedx3" : "${0:02X},x ${1:02X} ${2:04X}",
"indexedy" : "${0:02X},y",
"indexedy2" : "${0:02X},y ${1:02X}",
"indexedy3" : "${0:02X},y ${1:02X} ${2:04X}",
"relative" : "${0:04X}",
}
# Op Code Table
# Key is numeric opcode (possibly multiple bytes)
# Value is a list:
# # bytes
# mnemonic
# addressing mode.
# flags (e.g. pcr)
opcodeTable = {
0x1b : [ 1, "aba", "inherent" ],
0x3a : [ 1, "abx", "inherent" ],
0x183a : [ 2, "aby", "inherent" ],
0x89 : [ 2, "adca", "immediate" ],
0x99 : [ 2, "adca", "direct" ],
0xb9 : [ 3, "adca", "extended" ],
0xa9 : [ 2, "adca", "indexedx" ],
0x18a9 : [ 3, "adca", "indexedy" ],
0xc9 : [ 2, "adcb", "immediate" ],
0xd9 : [ 2, "adcb", "direct" ],
0xf9 : [ 3, "adcb", "extended" ],
0xe9 : [ 2, "adcb", "indexedx" ],
0x18e9 : [ 3, "adcb", "indexedy" ],
0x8b : [ 2, "adda", "immediate" ],
0x9b : [ 2, "adda", "direct" ],
0xbb : [ 3, "adda", "extended" ],
0xab : [ 2, "adda", "indexedx" ],
0x18ab : [ 3, "adda", "indexedy" ],
0xcb : [ 2, "addb", "immediate" ],
0xdb : [ 2, "addb", "direct" ],
0xfb : [ 3, "addb", "extended" ],
0xeb : [ 2, "addb", "indexedx" ],
0x18eb : [ 3, "addb", "indexedy" ],
0xc3 : [ 3, "addd", "immediatex" ],
0xd3 : [ 2, "addd", "direct" ],
0xf3 : [ 3, "addd", "extended" ],
0xe3 : [ 2, "addd", "indexedx" ],
0x18e3 : [ 3, "addd", "indexedy" ],
0x84 : [ 2, "anda", "immediate" ],
0x94 : [ 2, "anda", "direct" ],
0xb4 : [ 3, "anda", "extended" ],
0xa4 : [ 2, "anda", "indexedx" ],
0x18a4 : [ 3, "anda", "indexedy" ],
0xc4 : [ 2, "andb", "immediate" ],
0xd4 : [ 2, "andb", "direct" ],
0xf4 : [ 3, "andb", "extended" ],
0xe4 : [ 2, "andb", "indexedx" ],
0x18e4 : [ 3, "andb", "indexedy" ],
0x78 : [ 3, "asl", "extended" ],
0x68 : [ 2, "asl", "indexedx" ],
0x1868 : [ 3, "asl", "indexedy" ],
0x48 : [ 1, "asla", "inherent" ],
0x58 : [ 1, "aslb", "inherent" ],
0x05 : [ 1, "asld", "inherent" ],
0x77 : [ 3, "asr", "extended" ],
0x67 : [ 2, "asr", "indexedx" ],
0x1867 : [ 3, "asr", "indexedy" ],
0x47 : [ 1, "asra", "inherent" ],
0x57 : [ 1, "asrb", "inherent" ],
0x24 : [ 2, "bcc", "relative", pcr ],
0x15 : [ 3, "bclr", "direct2", ],
0x1d : [ 3, "bclr", "indexedx2", ],
0x181d : [ 4, "bclr", "indexedy2", ],
0x25 : [ 2, "bcs", "relative", pcr ],
0x27 : [ 2, "beq", "relative", pcr ],
0x2c : [ 2, "bge", "relative", pcr ],
0x2e : [ 2, "bgt", "relative", pcr ],
0x22 : [ 2, "bhi", "relative", pcr ],
0x24 : [ 2, "bhs", "relative", pcr ],
0x85 : [ 2, "bita", "immediate" ],
0x95 : [ 2, "bita", "direct" ],
0xb5 : [ 3, "bita", "extended" ],
0xa5 : [ 2, "bita", "indexedx" ],
0x18a5 : [ 3, "bita", "indexedy" ],
0xc5 : [ 2, "bitb", "immediate" ],
0xd5 : [ 2, "bitb", "direct" ],
0xf5 : [ 3, "bitb", "extended" ],
0xe5 : [ 2, "bitb", "indexedx" ],
0x18e5 : [ 3, "bitb", "indexedy" ],
0x2f : [ 2, "ble", "relative", pcr ],
0x25 : [ 2, "blo", "relative", pcr ],
0x23 : [ 2, "bls", "relative", pcr ],
0x2d : [ 2, "blt", "relative", pcr ],
0x2b : [ 2, "bmi", "relative", pcr ],
0x26 : [ 2, "bne", "relative", pcr ],
0x2a : [ 2, "bpl", "relative", pcr ],
0x20 : [ 2, "bra", "relative", pcr ],
0x13 : [ 4, "brclr", "direct3", pcr ],
0x1f : [ 4, "brclr", "indexedx3", pcr ],
0x181f : [ 5, "brclr", "indexedy3", pcr ],
0x21 : [ 2, "brn", "relative", pcr ],
0x12 : [ 4, "brset", "direct3", pcr ],
0x1e : [ 4, "brset", "indexedx3", pcr ],
0x181e : [ 5, "brset", "indexedy3", pcr ],
0x14 : [ 3, "bset", "direct2", ],
0x1c : [ 3, "bset", "indexedx2", ],
0x181c : [ 4, "bset", "indexedy2", ],
0x8d : [ 2, "bsr", "relative", pcr ],
0x28 : [ 2, "bvc", "relative", pcr ],
0x29 : [ 2, "bvs", "relative", pcr ],
0x11 : [ 1, "cba", "inherent" ],
0x0c : [ 1, "clc", "inherent" ],
0x0e : [ 1, "cli", "inherent" ],
0x7f : [ 3, "clr", "extended" ],
0x6f : [ 2, "clr", "indexedx" ],
0x187f : [ 3, "clr", "indexedy" ],
0x4f : [ 1, "clra", "inherent" ],
0x5f : [ 1, "clrb", "inherent" ],
0x0a : [ 1, "clv", "inherent" ],
0x81 : [ 2, "cmpa", "immediate" ],
0x91 : [ 2, "cmpa", "direct" ],
0xb1 : [ 3, "cmpa", "extended" ],
0xa1 : [ 2, "cmpa", "indexedx" ],
0x18a1 : [ 3, "cmpa", "indexedy" ],
0xc1 : [ 2, "cmpb", "immediate" ],
0xd1 : [ 2, "cmpb", "direct" ],
0xf1 : [ 3, "cmpb", "extended" ],
0xe1 : [ 2, "cmpb", "indexedx" ],
0x18e1 : [ 3, "cmpb", "indexedy" ],
0x73 : [ 3, "com", "extended" ],
0x63 : [ 2, "com", "indexedx" ],
0x1863 : [ 3, "com", "indexedy" ],
0x43 : [ 1, "coma", "inherent" ],
0x53 : [ 1, "comb", "inherent" ],
0x1a83 : [ 4, "cpd", "immediatex" ],
0x1a93 : [ 3, "cpd", "direct" ],
0x1ab3 : [ 4, "cpd", "extended" ],
0x1aa3 : [ 3, "cpd", "indexedx" ],
0xcda3 : [ 3, "cpd", "indexedy" ],
0x8c : [ 3, "cpx", "immediatex" ],
0x9c : [ 2, "cpx", "direct" ],
0xbc : [ 3, "cpx", "extended" ],
0xac : [ 2, "cpx", "indexedx" ],
0xcdac : [ 3, "cpx", "indexedy" ],
0x188c : [ 4, "cpy", "immediatex" ],
0x189c : [ 3, "cpy", "direct" ],
0x18bc : [ 4, "cpy", "extended" ],
0x1aac : [ 3, "cpy", "indexedx" ],
0x18ac : [ 3, "cpy", "indexedy" ],
0x19 : [ 1, "daa", "inherent" ],
0x7a : [ 3, "dec", "extended" ],
0x6a : [ 2, "dec", "indexedx" ],
0x186a : [ 3, "dec", "indexedy" ],
0x4a : [ 1, "deca", "inherent" ],
0x5a : [ 1, "decb", "inherent" ],
0x34 : [ 1, "des", "inherent" ],
0x09 : [ 1, "dex", "inherent" ],
0x1809 : [ 2, "dey", "inherent" ],
0x88 : [ 2, "eora", "immediate" ],
0x98 : [ 2, "eora", "direct" ],
0xb8 : [ 3, "eora", "extended" ],
0xa8 : [ 2, "eora", "indexedx" ],
0x18a8 : [ 3, "eora", "indexedy" ],
0xc8 : [ 2, "eorb", "immediate" ],
0xd8 : [ 2, "eorb", "direct" ],
0xf8 : [ 3, "eorb", "extended" ],
0xe8 : [ 2, "eorb", "indexedx" ],
0x18e8 : [ 3, "eorb", "indexedy" ],
0x03 : [ 1, "fdiv", "inherent" ],
0x02 : [ 1, "idiv", "inherent" ],
0x7c : [ 3, "inc", "extended" ],
0x6c : [ 2, "inc", "indexedx" ],
0x186c : [ 3, "inc", "indexedy" ],
0x4c : [ 1, "inca", "inherent" ],
0x5c : [ 1, "incb", "inherent" ],
0x31 : [ 1, "ins", "inherent" ],
0x08 : [ 1, "inx", "inherent" ],
0x1808 : [ 2, "iny", "inherent" ],
0x7e : [ 3, "jmp", "extended" ],
0x6e : [ 2, "jmp", "indexedx" ],
0x186e : [ 3, "jmp", "indexedy" ],
0x9d : [ 2, "jsr", "direct" ],
0xbd : [ 3, "jsr", "extended" ],
0xad : [ 2, "jsr", "indexedx" ],
0x18ad : [ 3, "jsr", "indexedy" ],
0x86 : [ 2, "ldaa", "immediate" ],
0x96 : [ 2, "ldaa", "direct" ],
0xb6 : [ 3, "ldaa", "extended" ],
0xa6 : [ 2, "ldaa", "indexedx" ],
0x18a6 : [ 3, "ldaa", "indexedy" ],
0xc6 : [ 2, "ldab", "immediate" ],
0xd6 : [ 2, "ldab", "direct" ],
0xf6 : [ 3, "ldab", "extended" ],
0xe6 : [ 2, "ldab", "indexedx" ],
0x18e6 : [ 3, "ldab", "indexedy" ],
0xcc : [ 3, "ldd", "immediatex" ],
0xdc : [ 2, "ldd", "direct" ],
0xfc : [ 3, "ldd", "extended" ],
0xec : [ 2, "ldd", "indexedx" ],
0x18ec : [ 3, "ldd", "indexedy" ],
0x8e : [ 3, "lds", "immediatex" ],
0x9e : [ 2, "lds", "direct" ],
0xbe : [ 3, "lds", "extended" ],
0xae : [ 2, "lds", "indexedx" ],
0x18ae : [ 3, "lds", "indexedy" ],
0xce : [ 3, "ldx", "immediatex" ],
0xde : [ 2, "ldx", "direct" ],
0xfe : [ 3, "ldx", "extended" ],
0xee : [ 2, "ldx", "indexedx" ],
0xcdee : [ 3, "ldx", "indexedy" ],
0x18ce : [ 4, "ldy", "immediatex" ],
0x18de : [ 3, "ldy", "direct" ],
0x18fe : [ 4, "ldy", "extended" ],
0x1aee : [ 3, "ldy", "indexedx" ],
0x18ee : [ 3, "ldy", "indexedy" ],
0x78 : [ 3, "lsl", "extended" ],
0x68 : [ 2, "lsl", "indexedx" ],
0x1868 : [ 3, "lsl", "indexedy" ],
0x48 : [ 1, "lsla", "inherent" ],
0x58 : [ 1, "lslb", "inherent" ],
0x05 : [ 1, "lsld", "inherent" ],
0x74 : [ 3, "lsr", "extended" ],
0x64 : [ 2, "lsr", "indexedx" ],
0x1864 : [ 3, "lsr", "indexedy" ],
0x44 : [ 1, "lsra", "inherent" ],
0x54 : [ 1, "lsrb", "inherent" ],
0x04 : [ 1, "lsrd", "inherent" ],
0x3d : [ 1, "mul", "inherent" ],
0x70 : [ 3, "neg", "extended" ],
0x60 : [ 2, "neg", "indexedx" ],
0x1860 : [ 3, "neg", "indexedy" ],
0x40 : [ 3, "nega", "inherent" ],
0x50 : [ 3, "negb", "inherent" ],
0x01 : [ 1, "nop", "inherent" ],
0x8a : [ 2, "oraa", "immediate" ],
0x9a : [ 2, "oraa", "direct" ],
0xba : [ 3, "oraa", "extended" ],
0xaa : [ 2, "oraa", "indexedx" ],
0x18aa : [ 3, "oraa", "indexedy" ],
0xca : [ 2, "orab", "immediate" ],
0xda : [ 2, "orab", "direct" ],
0xfa : [ 3, "orab", "extended" ],
0xea : [ 2, "orab", "indexedx" ],
0x18ea : [ 3, "orab", "indexedy" ],
0x36 : [ 1, "psha", "inherent" ],
0x37 : [ 1, "pshb", "inherent" ],
0x3c : [ 1, "pshx", "inherent" ],
0x183c : [ 2, "pshy", "inherent" ],
0x32 : [ 1, "pula", "inherent" ],
0x33 : [ 1, "pulb", "inherent" ],
0x38 : [ 1, "pulx", "inherent" ],
0x1838 : [ 2, "puly", "inherent" ],
0x79 : [ 3, "rol", "extended" ],
0x69 : [ 2, "rol", "indexedx" ],
0x1869 : [ 3, "rol", "indexedy" ],
0x49 : [ 1, "rola", "inherent" ],
0x59 : [ 1, "rolb", "inherent" ],
0x76 : [ 3, "ror", "extended" ],
0x66 : [ 2, "ror", "indexedx" ],
0x1866 : [ 3, "ror", "indexedy" ],
0x46 : [ 1, "rora", "inherent" ],
0x55 : [ 1, "rorb", "inherent" ],
0x3b : [ 1, "rti", "inherent" ],
0x39 : [ 1, "rts", "inherent" ],
0x10 : [ 1, "sba", "inherent" ],
0x82 : [ 2, "sbca", "immediate" ],
0x92 : [ 2, "sbca", "direct" ],
0xb2 : [ 3, "sbca", "extended" ],
0xa2 : [ 2, "sbca", "indexedx" ],
0x18a2 : [ 3, "sbca", "indexedy" ],
0xc2 : [ 2, "sbcb", "immediate" ],
0xd2 : [ 2, "sbcb", "direct" ],
0xf2 : [ 3, "sbcb", "extended" ],
0xe2 : [ 2, "sbcb", "indexedx" ],
0x18e2 : [ 3, "sbcb", "indexedy" ],
0x0d : [ 1, "sec", "inherent" ],
0x0f : [ 1, "sei", "inherent" ],
0x0b : [ 1, "sev", "inherent" ],
0x97 : [ 2, "staa", "direct" ],
0xb7 : [ 3, "staa", "extended" ],
0xa7 : [ 2, "staa", "indexedx" ],
0x18a7 : [ 3, "staa", "indexedy" ],
0xd7 : [ 2, "stab", "direct" ],
0xf7 : [ 3, "stab", "extended" ],
0xe7 : [ 2, "stab", "indexedx" ],
0x18e7 : [ 3, "stab", "indexedy" ],
0xdd : [ 2, "std", "direct" ],
0xfd : [ 3, "std", "extended" ],
0xed : [ 2, "std", "indexedx" ],
0x18ed : [ 3, "std", "indexedy" ],
0xcf : [ 1, "stop", "inherent" ],
0x9f : [ 2, "sts", "direct" ],
0xbf : [ 3, "sts", "extended" ],
0xaf : [ 2, "sts", "indexedx" ],
0x18af : [ 3, "sts", "indexedy" ],
0xdf : [ 2, "stx", "direct" ],
0xff : [ 3, "stx", "extended" ],
0xef : [ 2, "stx", "indexedx" ],
0xcdef : [ 3, "stx", "indexedy" ],
0x18df : [ 3, "sty", "direct" ],
0x18ff : [ 4, "sty", "extended" ],
0x1aef : [ 3, "sty", "indexedx" ],
0x18ef : [ 3, "sty", "indexedy" ],
0x80 : [ 2, "suba", "immediate" ],
0x90 : [ 2, "suba", "direct" ],
0xb0 : [ 3, "suba", "extended" ],
0xa0 : [ 2, "suba", "indexedx" ],
0x18a0 : [ 3, "suba", "indexedy" ],
0xc0 : [ 2, "subb", "immediate" ],
0xd0 : [ 2, "subb", "direct" ],
0xf0 : [ 3, "subb", "extended" ],
0xe0 : [ 2, "subb", "indexedx" ],
0x18e0 : [ 3, "subb", "indexedy" ],
0x83 : [ 3, "subd", "immediatex" ],
0x93 : [ 2, "subd", "direct" ],
0xb3 : [ 3, "subd", "extended" ],
0xa3 : [ 2, "subd", "indexedx" ],
0x18a3 : [ 3, "subd", "indexedy" ],
0x3f : [ 1, "swi", "inherent" ],
0x16 : [ 1, "tab", "inherent" ],
0x06 : [ 1, "tap", "inherent" ],
0x17 : [ 1, "tba", "inherent" ],
0x00 : [ 1, "test", "inherent" ],
0x07 : [ 1, "tpa", "inherent" ],
0x7d : [ 3, "tst", "extended" ],
0x6d : [ 2, "tst", "indexedx" ],
0x186d : [ 3, "tst", "indexedy" ],
0x4d : [ 1, "tsta", "inherent" ],
0x5d : [ 1, "tstb", "inherent" ],
0x30 : [ 1, "tsx", "inherent" ],
0x1830 : [ 2, "tsy", "inherent" ],
0x35 : [ 1, "txs", "inherent" ],
0x1835 : [ 2, "tys", "inherent" ],
0x3e : [ 1, "wai", "inherent" ],
0x8f : [ 1, "xgdx", "inherent" ],
0x188f : [ 2, "xgdy", "inherent" ],
}
# End of processor specific code
##########################################################################