########################################################################## # # Processor specific code # CPU = "6800" # Description = "Motorola 6800 8-bit microprocessor." # DataWidth = 8 # 8-bit data # AddressWidth = 16 # 16-bit addresses # Maximum length of an instruction (for formatting purposes) maxLength = 3 # Leadin bytes for multibyte instructions leadInBytes = [] # Addressing mode table # List of addressing modes and corresponding format strings for operands. addressModeTable = { "implied" : "", "immediate" : "#${0:02X}", "immediatex" : "#${0:02X}{1:02X}", "direct" : "${0:02X}", "indexed" : "${0:02X},x", "extended" : "${0:02X}{1:02X}", "relative" : "${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 = { 0x01 : [ 1, "nop", "implied" ], 0x06 : [ 1, "tap", "implied" ], 0x07 : [ 1, "tpa", "implied" ], 0x08 : [ 1, "inx", "implied" ], 0x09 : [ 1, "dex", "implied" ], 0x0a : [ 1, "clv", "implied" ], 0x0b : [ 1, "sev", "implied" ], 0x0c : [ 1, "clc", "implied" ], 0x0d : [ 1, "sec", "implied" ], 0x0e : [ 1, "cli", "implied" ], 0x0f : [ 1, "sei", "implied" ], 0x10 : [ 1, "sba", "implied" ], 0x11 : [ 1, "cba", "implied" ], 0x14 : [ 1, "nba", "implied" ], 0x16 : [ 1, "tab", "implied" ], 0x17 : [ 1, "tba", "implied" ], 0x19 : [ 1, "daa", "implied" ], 0x1b : [ 1, "aba", "implied" ], 0x20 : [ 2, "bra", "relative", pcr ], 0x22 : [ 2, "bhi", "relative", pcr ], 0x23 : [ 2, "bls", "relative", pcr ], 0x24 : [ 2, "bcc", "relative", pcr ], 0x25 : [ 2, "bcs", "relative", pcr ], 0x26 : [ 2, "bne", "relative", pcr ], 0x27 : [ 2, "beq", "relative", pcr ], 0x28 : [ 2, "bvc", "relative", pcr ], 0x29 : [ 2, "bvs", "relative", pcr ], 0x2a : [ 2, "bpl", "relative", pcr ], 0x2b : [ 2, "bmi", "relative", pcr ], 0x2c : [ 2, "bge", "relative", pcr ], 0x2d : [ 2, "blt", "relative", pcr ], 0x2e : [ 2, "bgt", "relative", pcr ], 0x2f : [ 2, "ble", "relative", pcr ], 0x30 : [ 1, "tsx", "implied" ], 0x31 : [ 1, "ins", "implied" ], 0x32 : [ 1, "pula", "implied" ], 0x33 : [ 1, "pulb", "implied" ], 0x34 : [ 1, "des", "implied" ], 0x35 : [ 1, "txs", "implied" ], 0x36 : [ 1, "psha", "implied" ], 0x37 : [ 1, "pshb", "implied" ], 0x39 : [ 1, "rts", "implied" ], 0x3b : [ 1, "rti", "implied" ], 0x3e : [ 1, "wai", "implied" ], 0x3f : [ 1, "swi", "implied" ], 0x40 : [ 1, "nega", "implied" ], 0x43 : [ 1, "com", "implied" ], 0x44 : [ 1, "lsra", "implied" ], 0x46 : [ 1, "rora", "implied" ], 0x47 : [ 1, "asra", "implied" ], 0x48 : [ 1, "asla", "implied" ], 0x49 : [ 1, "rola", "implied" ], 0x4a : [ 1, "deca", "implied" ], 0x4c : [ 1, "inca", "implied" ], 0x4d : [ 1, "tsta", "implied" ], 0x4f : [ 1, "clra", "implied" ], 0x50 : [ 1, "neg", "implied" ], 0x53 : [ 1, "comb", "implied" ], 0x54 : [ 1, "lsrb", "implied" ], 0x56 : [ 1, "rorb", "implied" ], 0x57 : [ 1, "asrb", "implied" ], 0x58 : [ 1, "aslb", "implied" ], 0x59 : [ 1, "rolb", "implied" ], 0x5a : [ 1, "decb", "implied" ], 0x5c : [ 1, "incb", "implied" ], 0x5d : [ 1, "tstb", "implied" ], 0x5f : [ 1, "clrb", "implied" ], 0x60 : [ 2, "neg", "indexed" ], 0x63 : [ 2, "com", "indexed" ], 0x64 : [ 2, "lsr", "indexed" ], 0x66 : [ 2, "ror", "indexed" ], 0x67 : [ 2, "asr", "indexed" ], 0x68 : [ 2, "asl", "indexed" ], 0x69 : [ 2, "rol", "indexed" ], 0x6a : [ 2, "dec", "indexed" ], 0x6c : [ 2, "inc", "indexed" ], 0x6d : [ 2, "tst", "indexed" ], 0x6e : [ 2, "jmp", "indexed" ], 0x6f : [ 2, "clr", "indexed" ], 0x70 : [ 3, "neg", "extended" ], 0x73 : [ 3, "com", "extended" ], 0x74 : [ 3, "lsr", "extended" ], 0x76 : [ 3, "ror", "extended" ], 0x77 : [ 3, "asr", "extended" ], 0x78 : [ 3, "asl", "extended" ], 0x79 : [ 3, "rol", "extended" ], 0x7a : [ 3, "dec", "extended" ], 0x7c : [ 3, "inc", "extended" ], 0x7d : [ 3, "tst", "extended" ], 0x7e : [ 3, "jmp", "extended" ], 0x7f : [ 3, "clr", "extended" ], 0x80 : [ 2, "sub", "immediate" ], 0x81 : [ 2, "cmp", "immediate" ], 0x82 : [ 2, "sbc", "immediate" ], 0x84 : [ 2, "and", "immediate" ], 0x85 : [ 2, "bit", "immediate" ], 0x86 : [ 2, "lda", "immediate" ], 0x88 : [ 2, "eor", "immediate" ], 0x89 : [ 2, "adc", "immediate" ], 0x8a : [ 2, "ora", "immediate" ], 0x8b : [ 2, "add", "immediate" ], 0x8c : [ 3, "cpx", "immediatex" ], 0x8d : [ 2, "bsr", "relative" ], 0x8e : [ 3, "lds", "immediatex" ], 0x90 : [ 2, "sub", "direct" ], 0x91 : [ 2, "cmp", "direct" ], 0x92 : [ 2, "sbc", "direct" ], 0x94 : [ 2, "and", "direct" ], 0x95 : [ 2, "bit", "direct" ], 0x96 : [ 2, "lda", "direct" ], 0x97 : [ 2, "sta", "direct" ], 0x98 : [ 2, "eor", "direct" ], 0x99 : [ 2, "adc", "direct" ], 0x9a : [ 2, "ora", "direct" ], 0x9b : [ 2, "add", "direct" ], 0x9c : [ 2, "cpx", "direct" ], 0x9e : [ 2, "lds", "direct" ], 0x9f : [ 2, "sts", "direct" ], 0xa0 : [ 2, "sub", "indexed" ], 0xa1 : [ 2, "cmp", "indexed" ], 0xa2 : [ 2, "sbc", "indexed" ], 0xa4 : [ 2, "and", "indexed" ], 0xa5 : [ 2, "bit", "indexed" ], 0xa6 : [ 2, "ldaa", "indexed" ], 0xa7 : [ 2, "staa", "indexed" ], 0xa8 : [ 2, "eora", "indexed" ], 0xa9 : [ 2, "adca", "indexed" ], 0xaa : [ 2, "oraa", "indexed" ], 0xab : [ 2, "adda", "indexed" ], 0xac : [ 2, "cpx", "indexed" ], 0xad : [ 2, "jsr", "indexed" ], 0xae : [ 2, "lds", "indexed" ], 0xaf : [ 2, "sts", "indexed" ], 0xb0 : [ 3, "suba", "extended" ], 0xb1 : [ 3, "cmpa", "extended" ], 0xb2 : [ 3, "sbca", "extended" ], 0xb4 : [ 3, "anda", "extended" ], 0xb5 : [ 3, "bita", "extended" ], 0xb6 : [ 3, "ldaa", "extended" ], 0xb7 : [ 3, "staa", "extended" ], 0xb8 : [ 3, "eora", "extended" ], 0xb9 : [ 3, "adca", "extended" ], 0xba : [ 3, "oraa", "extended" ], 0xbb : [ 3, "adda", "extended" ], 0xbc : [ 3, "cpx", "extended" ], 0xbd : [ 3, "jsr", "extended" ], 0xbe : [ 3, "lds", "extended" ], 0xbf : [ 3, "sts", "extended" ], 0xc0 : [ 2, "subb", "immediate" ], 0xc1 : [ 2, "cmpb", "immediate" ], 0xc2 : [ 2, "sbcb", "immediate" ], 0xc4 : [ 2, "andb", "immediate" ], 0xc5 : [ 2, "bitb", "immediate" ], 0xc6 : [ 2, "ldab", "immediate" ], 0xc8 : [ 2, "eorb", "immediate" ], 0xc9 : [ 2, "adcb", "immediate" ], 0xca : [ 2, "orab", "immediate" ], 0xcb : [ 2, "addb", "immediate" ], 0xce : [ 3, "ldx", "immediatex" ], 0xd0 : [ 2, "subb", "direct" ], 0xd1 : [ 2, "cmpb", "direct" ], 0xd2 : [ 2, "sbcb", "direct" ], 0xd4 : [ 2, "andb", "direct" ], 0xd5 : [ 2, "bitb", "direct" ], 0xd6 : [ 2, "ldab", "direct" ], 0xd7 : [ 2, "stab", "direct" ], 0xd8 : [ 2, "eorb", "direct" ], 0xd9 : [ 2, "adcb", "direct" ], 0xda : [ 2, "orab", "direct" ], 0xdb : [ 2, "addb", "direct" ], 0xde : [ 2, "ldx", "direct" ], 0xdf : [ 2, "stx", "direct" ], 0xe0 : [ 2, "subb", "indexed" ], 0xe1 : [ 2, "cmpb", "indexed" ], 0xe2 : [ 2, "sbcb", "indexed" ], 0xe4 : [ 2, "andb", "indexed" ], 0xe5 : [ 2, "bitb", "indexed" ], 0xe6 : [ 2, "ldab", "indexed" ], 0xe7 : [ 2, "stab", "indexed" ], 0xe8 : [ 2, "eorb", "indexed" ], 0xe9 : [ 2, "adcb", "indexed" ], 0xea : [ 2, "orab", "indexed" ], 0xeb : [ 2, "addb", "indexed" ], 0xee : [ 2, "ldx", "indexed" ], 0xef : [ 2, "stx", "indexed" ], 0xf0 : [ 3, "subb", "extended" ], 0xf1 : [ 3, "cmpb", "extended" ], 0xf2 : [ 3, "sbcb", "extended" ], 0xf4 : [ 3, "andb", "extended" ], 0xf5 : [ 3, "bitb", "extended" ], 0xf6 : [ 3, "ldab", "extended" ], 0xf7 : [ 3, "stab", "extended" ], 0xf8 : [ 3, "eorb", "extended" ], 0xf9 : [ 3, "adcb", "extended" ], 0xfa : [ 3, "orab", "extended" ], 0xfb : [ 3, "addb", "extended" ], 0xfe : [ 3, "ldx", "extended" ], 0xff : [ 3, "stx", "extended" ], } # End of processor specific code ##########################################################################