From ab2da9bc91adc5b04896755614ea60e44efe423d Mon Sep 17 00:00:00 2001 From: Jeff Tranter Date: Sun, 21 Jun 2015 19:42:29 -0400 Subject: [PATCH] Add 65C02 support. --- 65c02.py | 276 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ udis.py | 2 +- 2 files changed, 277 insertions(+), 1 deletion(-) create mode 100755 65c02.py diff --git a/65c02.py b/65c02.py new file mode 100755 index 0000000..d801946 --- /dev/null +++ b/65c02.py @@ -0,0 +1,276 @@ +########################################################################## +# +# Processor specific code + +# CPU = "65C02" +# Description = "Western Design Center (and others) 65C02 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 = { +"implicit" : "", +"absolute" : "${1:02X}{0:02X}", +"absolutex" : "${1:02X}{0:02X},x", +"absolutey" : "${1:02X}{0:02X},y", +"accumulator" : "a", +"immediate" : "#${0:02X}", +"indirectx" : "(${0:02X},x)", +"indirecty" : "(${0:02X}),y", +"indirect" : "(${1:02X}{0:02X})", +"relative" : "${0:04X}", +"zeropage" : "${0:02X}", +"zeropagex" : "${0:02X},x", +"zeropagey" : "${0:02X},y", +"indirectzeropage" : "(${0:02X})", +"absoluteindexedindirect" : "(${1:02X}{0:02X},x)", +"zeropagerelative" : "${0:02X}, ${1:04X}", +} + +# Op Code Table +# Key is numeric opcode (possibly multiple bytes) +# Value is a list: +# # bytes +# mnemonic +# addressing mode +# flags (e.g. pcr) +opcodeTable = { +0x00 : [ 1, "brk", "implicit" ], +0x01 : [ 2, "ora", "indirectx" ], +0x04 : [ 2, "tsb", "zeropage", ], +0x05 : [ 2, "ora", "zeropage" ], +0x06 : [ 2, "asl", "zeropage" ], +0x07 : [ 2, "rmb0", "zeropage" ], +0x08 : [ 1, "php", "implicit" ], +0x09 : [ 2, "ora", "immediate" ], +0x0a : [ 1, "asl", "accumulator" ], +0x0c : [ 3, "tsb", "absolute" ], +0x0d : [ 3, "ora", "absolute" ], +0x0e : [ 3, "asl", "absolute" ], +0x0f : [ 3, "bbr0", "zeropagerelative" ], + +0x10 : [ 2, "bpl", "relative", pcr ], +0x11 : [ 2, "ora", "indirecty" ], +0x12 : [ 2, "ora", "indirectzeropage" ], +0x14 : [ 2, "trb", "zeropage" ], +0x15 : [ 2, "ora", "zeropagex" ], +0x16 : [ 2, "asl", "zeropagex" ], +0x17 : [ 2, "rmb1", "zeropage" ], +0x18 : [ 1, "clc", "implicit" ], +0x19 : [ 3, "ora", "absolutey" ], +0x1a : [ 1, "inc", "accumulator" ], +0x1c : [ 3, "trb", "absolute" ], +0x1d : [ 3, "ora", "absolutex" ], +0x1e : [ 3, "asl", "absolutex" ], +0x1f : [ 2, "bbr1", "zeropagerelative" ], + +0x20 : [ 3, "jsr", "absolute" ], +0x21 : [ 2, "and", "indirectx" ], +0x24 : [ 2, "bit", "zeropage" ], +0x25 : [ 2, "and", "zeropage" ], +0x26 : [ 2, "rol", "zeropage" ], +0x27 : [ 2, "rmb2", "zeropage" ], +0x28 : [ 1, "plp", "implicit" ], +0x29 : [ 2, "and", "immediate" ], +0x2a : [ 1, "rol", "accumulator" ], +0x2c : [ 3, "bit", "absolute" ], +0x2d : [ 3, "and", "absolute" ], +0x2e : [ 3, "rol", "absolute" ], +0x2f : [ 3, "bbr2", "zeropagerelative" ], + +0x30 : [ 2, "bmi", "relative", pcr ], +0x31 : [ 2, "and", "indirecty" ], +0x32 : [ 2, "and", "indirectzeropage" ], +0x34 : [ 2, "bit", "zeropagex" ], +0x35 : [ 2, "and", "zeropagex" ], +0x36 : [ 2, "rol", "zeropagex" ], +0x37 : [ 1, "rmb3", "zeropage" ], +0x38 : [ 1, "sec", "implicit" ], +0x39 : [ 3, "and", "absolutey" ], +0x3a : [ 1, "dec", "accumulator" ], +0x3c : [ 3, "bit", "absolutex" ], +0x3d : [ 3, "and", "absolutex" ], +0x3e : [ 3, "rol", "absolutex" ], +0x3f : [ 2, "bbr3", "zeropagerelative" ], + +0x40 : [ 1, "rti", "implicit" ], +0x41 : [ 2, "eor", "indirectx" ], +0x45 : [ 2, "eor", "zeropage" ], +0x46 : [ 2, "lsr", "zeropage" ], +0x47 : [ 2, "rmb4", "zeropage" ], +0x48 : [ 1, "pha", "implicit" ], +0x49 : [ 2, "eor", "immediate" ], +0x4a : [ 1, "lsr", "accumulator" ], +0x4c : [ 3, "jmp", "absolute" ], +0x4d : [ 3, "eor", "absolute" ], +0x4e : [ 3, "lsr", "absolute" ], +0x4f : [ 2, "bbr4", "zeropagerelative" ], + +0x50 : [ 2, "bvc", "relative", pcr ], +0x51 : [ 2, "eor", "indirecty" ], +0x52 : [ 2, "eor", "indirectzeropage" ], +0x55 : [ 2, "eor", "zeropagex" ], +0x56 : [ 2, "lsr", "zeropagex" ], +0x57 : [ 2, "rmb5", "zeropage" ], +0x58 : [ 1, "cli", "implicit" ], +0x59 : [ 3, "eor", "absolutey" ], +0x5a : [ 1, "phy", "implicit" ], +0x5d : [ 3, "eor", "absolutex" ], +0x5e : [ 3, "lsr", "absolutex" ], +0x5f : [ 2, "bbr5", "zeropagerelative" ], + +0x60 : [ 1, "rts", "implicit" ], +0x61 : [ 2, "adc", "indirectx" ], +0x64 : [ 2, "stz", "zeropage" ], +0x65 : [ 2, "adc", "zeropage" ], +0x66 : [ 2, "ror", "zeropage" ], +0x67 : [ 2, "rmb6", "zeropage" ], +0x68 : [ 1, "pla", "implicit" ], +0x69 : [ 2, "adc", "immediate" ], +0x6a : [ 1, "ror", "accumulator" ], +0x6c : [ 3, "jmp", "indirect" ], +0x6d : [ 3, "adc", "absolute" ], +0x6e : [ 3, "ror", "absolute" ], +0x6f : [ 2, "bbr6", "zeropagerelative" ], + +0x70 : [ 2, "bvs", "relative", pcr ], +0x71 : [ 2, "adc", "indirecty" ], +0x72 : [ 2, "adc", "indirectzeropage" ], +0x74 : [ 2, "stz", "zeropagex" ], +0x75 : [ 2, "adc", "zeropagex" ], +0x76 : [ 2, "ror", "zeropagex" ], +0x77 : [ 2, "rmb7", "zeropage" ], +0x78 : [ 1, "sei", "implicit" ], +0x79 : [ 3, "adc", "absolutey" ], +0x7a : [ 1, "ply", "implicit" ], +0x7c : [ 2, "jmp", "absoluteindexedindirect" ], +0x7d : [ 3, "adc", "absolutex" ], +0x7e : [ 3, "ror", "absolutex" ], +0x7f : [ 2, "bbr7", "zeropagerelative" ], + +0x80 : [ 2, "bra", "relative" ], +0x81 : [ 2, "sta", "indirectx" ], +0x84 : [ 2, "sty", "zeropage" ], +0x85 : [ 2, "sta", "zeropage" ], +0x86 : [ 2, "stx", "zeropage" ], +0x87 : [ 2, "smb0", "zeropage" ], +0x88 : [ 1, "dey", "implicit" ], +0x89 : [ 2, "bit", "immediate" ], +0x8a : [ 1, "txa", "implicit" ], +0x8c : [ 3, "sty", "absolute" ], +0x8d : [ 3, "sta", "absolute" ], +0x8e : [ 3, "stx", "absolute" ], +0x8f : [ 2, "bbs0", "zeropagerelative" ], + +0x90 : [ 2, "bcc", "relative", pcr ], +0x91 : [ 2, "sta", "indirecty" ], +0x92 : [ 2, "sta", "indirectzeropage" ], +0x94 : [ 2, "sty", "zeropagex" ], +0x95 : [ 2, "sta", "zeropagex" ], +0x96 : [ 2, "stx", "zeropagey" ], +0x97 : [ 2, "smb1", "zeropage" ], +0x98 : [ 1, "tya", "implicit" ], +0x99 : [ 3, "sta", "absolutey" ], +0x9a : [ 1, "txs", "implicit" ], +0x9c : [ 3, "stz", "absolute" ], +0x9d : [ 3, "sta", "absolutex" ], +0x9e : [ 3, "stz", "absolutex" ], +0x9f : [ 2, "bbs1", "zeropagerelative" ], + +0xa0 : [ 2, "ldy", "immediate" ], +0xa1 : [ 2, "lda", "indirectx" ], +0xa2 : [ 2, "ldx", "immediate" ], +0xa4 : [ 2, "ldy", "zeropage" ], +0xa5 : [ 2, "lda", "zeropage" ], +0xa6 : [ 2, "ldx", "zeropage" ], +0xa7 : [ 2, "smb2", "zeropage" ], +0xa8 : [ 1, "tay", "implicit" ], +0xa9 : [ 2, "lda", "immediate" ], +0xaa : [ 1, "tax", "implicit" ], +0xac : [ 3, "ldy", "absolute" ], +0xad : [ 3, "lda", "absolute" ], +0xae : [ 3, "ldx", "absolute" ], +0xaf : [ 2, "bbs2", "zeropagerelative" ], + +0xb0 : [ 2, "bcs", "relative", pcr ], +0xb1 : [ 2, "lda", "indirecty" ], +0xb2 : [ 2, "lda", "indirectzeropage" ], +0xb4 : [ 2, "ldy", "zeropagex" ], +0xb5 : [ 2, "lda", "zeropagex" ], +0xb6 : [ 2, "ldx", "zeropagey" ], +0xb7 : [ 2, "smb3", "zeropage" ], +0xb8 : [ 1, "clv", "implicit" ], +0xb9 : [ 3, "lda", "absolutey" ], +0xba : [ 1, "tsx", "implicit" ], +0xbc : [ 3, "ldy", "absolutex" ], +0xbd : [ 3, "lda", "absolutex" ], +0xbe : [ 3, "ldx", "absolutey" ], +0xbf : [ 2, "bbs3", "zeropagerelative" ], + +0xc0 : [ 2, "cpy", "immediate" ], +0xc1 : [ 2, "cmp", "indirectx" ], +0xc4 : [ 2, "cpy", "zeropage" ], +0xc5 : [ 2, "cmp", "zeropage" ], +0xc6 : [ 2, "dec", "zeropage" ], +0xc7 : [ 2, "smb4", "zeropage" ], +0xc8 : [ 1, "iny", "implicit" ], +0xc9 : [ 2, "cmp", "immediate" ], +0xca : [ 1, "dex", "implicit" ], +0xcb : [ 1, "wai", "implicit" ], # WDC 65C02 only (not Rockwell) +0xcc : [ 3, "cpy", "absolute" ], +0xcd : [ 3, "cmp", "absolute" ], +0xce : [ 3, "dec", "absolute" ], +0xcf : [ 2, "bbs4", "zeropagerelative" ], + +0xd0 : [ 2, "bne", "relative", pcr ], +0xd1 : [ 2, "cmp", "indirecty" ], +0xd2 : [ 2, "cmp", "indirectzeropage" ], +0xd5 : [ 2, "cmp", "zeropagex" ], +0xd6 : [ 2, "dec", "zeropagex" ], +0xd7 : [ 2, "smb5", "zeropage" ], +0xd8 : [ 1, "cld", "implicit" ], +0xd9 : [ 3, "cmp", "absolutey" ], +0xda : [ 1, "phx", "implicit" ], +0xda : [ 1, "stp", "implicit" ], # WDC 65C02 only (not Rockwell) +0xdd : [ 3, "cmp", "absolutex" ], +0xde : [ 3, "dec", "absolutex" ], +0xdf : [ 2, "bbs5", "zeropagerelative" ], + +0xe0 : [ 2, "cpx", "immediate" ], +0xe1 : [ 2, "sbc", "indirectx" ], +0xe4 : [ 2, "cpx", "zeropage" ], +0xe5 : [ 2, "sbc", "zeropage" ], +0xe6 : [ 2, "inc", "zeropage" ], +0xe7 : [ 2, "smb6", "zeropage" ], +0xe8 : [ 1, "inx", "implicit" ], +0xe9 : [ 2, "sbc", "immediate" ], +0xea : [ 1, "nop", "implicit" ], +0xec : [ 3, "cpx", "absolute" ], +0xed : [ 3, "sbc", "absolute" ], +0xee : [ 3, "inc", "absolute" ], +0xef : [ 2, "bbs6", "zeropagerelative" ], + +0xf0 : [ 2, "beq", "relative", pcr ], +0xf1 : [ 2, "sbc", "indirecty" ], +0xf2 : [ 2, "sbc", "indirectzeropage" ], +0xf5 : [ 2, "sbc", "zeropagex" ], +0xf6 : [ 2, "inc", "zeropagex" ], +0xf7 : [ 2, "smb7", "zeropage" ], +0xf8 : [ 1, "sed", "implicit" ], +0xf9 : [ 3, "sbc", "absolutey" ], +0xfa : [ 1, "plx", "implicit" ], +0xfd : [ 3, "sbc", "absolutex" ], +0xfe : [ 3, "inc", "absolutex" ], +0xff : [ 2, "bbs7", "zeropagerelative" ], + +} + +# End of processor specific code +########################################################################## diff --git a/udis.py b/udis.py index 2c69916..50a02c4 100755 --- a/udis.py +++ b/udis.py @@ -58,7 +58,7 @@ try: exec(open(plugin).read()) except FileNotFoundError: print(("error: CPU plugin file '{}' not found.".format(plugin)), file=sys.stderr) - print("The following CPUs are supported: 6502 6800 6811") + print("The following CPUs are supported: 6502 65c02 6800 6811") sys.exit(1) # Get filename from command line arguments.