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Second attempt at implementation of the BBXn instructions for Rockwell 65c02 chips.

Browse Source 
Reliable technical documentation for how these instructions are decoded is a
little thin on the ground online, so some of this implementation is still
speculative.
This commit is contained in:
Michael Martin 2013-01-27 17:09:56 -08:00
parent 1c7174e696
commit e5ac21f0f9
10 changed files with 445 additions and 386 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
src/Ophis/Frontend.py
View File

@ -314,6 +314,7 @@ def parse_line(ppt, lexemelist):
Err.log("Unknown pragma " + pragma)
else: # Instruction
opcode = line.expect("OPCODE").value
arg2 = None
if line.lookahead(0).type == "#":
mode = "Immediate"
line.expect("#")
@ -344,15 +345,21 @@ def parse_line(ppt, lexemelist):
arg = parse_expr(line)
tok = line.expect("EOL", ",").type
if tok == ",":
tok = line.expect("X", "Y").type
if tok == "X":
mode = "MemoryX"
# Parser has to special-case the BBXn instructions,
# Which uniquely take two addresses
if opcode[:3] in ["bbs", "bbr"]:
arg2 = parse_expr(line)
mode = "Memory2"
else:
mode = "MemoryY"
tok = line.expect("X", "Y").type
if tok == "X":
mode = "MemoryX"
else:
mode = "MemoryY"
line.expect("EOL")
else:
mode = "Memory"
result.append(IR.Node(ppt, mode, opcode, arg))
result.append(IR.Node(ppt, mode, opcode, arg, arg2))
aux()
result = [node for node in result if node is not IR.NullNode]

343
src/Ophis/Opcodes.py
View File

@ -12,339 +12,340 @@
# the tables in tools/opcodes. Edit those tables, not these.
# Names of addressing modes
modes = ["Implied", # 0
"Immediate", # 1
"Zero Page", # 2
"Zero Page, X", # 3
"Zero Page, Y", # 4
"Absolute", # 5
"Absolute, X", # 6
"Absolute, Y", # 7
"(Absolute)", # 8
"(Absolute, X)", # 9
"(Absolute), Y", # 10
"(Zero Page)", # 11
"(Zero Page, X)", # 12
"(Zero Page), Y", # 13
"Relative"] # 14
modes = ["Implied", # 0
"Immediate", # 1
"Zero Page", # 2
"Zero Page, X", # 3
"Zero Page, Y", # 4
"Absolute", # 5
"Absolute, X", # 6
"Absolute, Y", # 7
"(Absolute)", # 8
"(Absolute, X)", # 9
"(Absolute), Y", # 10
"(Zero Page)", # 11
"(Zero Page, X)", # 12
"(Zero Page), Y", # 13
"Relative", # 14
"Zero Page, Relative"] # 15
# Lengths of the argument
lengths = [0, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1]
lengths = [0, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 2]
opcodes = {
'adc': [None, 0x69, 0x65, 0x75, None, 0x6D, 0x7D, 0x79,
None, None, None, None, 0x61, 0x71, None],
None, None, None, None, 0x61, 0x71, None, None],
'adc.w': [None, None, None, None, None, 0x6D, 0x7D, 0x79,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'and': [None, 0x29, 0x25, 0x35, None, 0x2D, 0x3D, 0x39,
None, None, None, None, 0x21, 0x31, None],
None, None, None, None, 0x21, 0x31, None, None],
'and.w': [None, None, None, None, None, 0x2D, 0x3D, 0x39,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'asl': [0x0A, None, 0x06, 0x16, None, 0x0E, 0x1E, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'asl.w': [None, None, None, None, None, 0x0E, 0x1E, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'bcc': [None, None, None, None, None, None, None, None,
None, None, None, None, None, None, 0x90],
None, None, None, None, None, None, 0x90, None],
'bcs': [None, None, None, None, None, None, None, None,
None, None, None, None, None, None, 0xB0],
None, None, None, None, None, None, 0xB0, None],
'beq': [None, None, None, None, None, None, None, None,
None, None, None, None, None, None, 0xF0],
None, None, None, None, None, None, 0xF0, None],
'bit': [None, None, 0x24, None, None, 0x2C, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'bit.w': [None, None, None, None, None, 0x2C, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'bmi': [None, None, None, None, None, None, None, None,
None, None, None, None, None, None, 0x30],
None, None, None, None, None, None, 0x30, None],
'bne': [None, None, None, None, None, None, None, None,
None, None, None, None, None, None, 0xD0],
None, None, None, None, None, None, 0xD0, None],
'bpl': [None, None, None, None, None, None, None, None,
None, None, None, None, None, None, 0x10],
None, None, None, None, None, None, 0x10, None],
'brk': [0x00, None, None, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'bvc': [None, None, None, None, None, None, None, None,
None, None, None, None, None, None, 0x50],
None, None, None, None, None, None, 0x50, None],
'bvs': [None, None, None, None, None, None, None, None,
None, None, None, None, None, None, 0x70],
None, None, None, None, None, None, 0x70, None],
'clc': [0x18, None, None, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'cld': [0xD8, None, None, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'cli': [0x58, None, None, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'clv': [0xB8, None, None, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'cmp': [None, 0xC9, 0xC5, 0xD5, None, 0xCD, 0xDD, 0xD9,
None, None, None, None, 0xC1, 0xD1, None],
None, None, None, None, 0xC1, 0xD1, None, None],
'cmp.w': [None, None, None, None, None, 0xCD, 0xDD, 0xD9,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'cpx': [None, 0xE0, 0xE4, None, None, 0xEC, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'cpx.w': [None, None, None, None, None, 0xEC, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'cpy': [None, 0xC0, 0xC4, None, None, 0xCC, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'cpy.w': [None, None, None, None, None, 0xCC, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'dec': [None, None, 0xC6, 0xD6, None, 0xCE, 0xDE, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'dec.w': [None, None, None, None, None, 0xCE, 0xDE, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'dex': [0xCA, None, None, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'dey': [0x88, None, None, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'eor': [None, 0x49, 0x45, 0x55, None, 0x4D, 0x5D, 0x59,
None, None, None, None, 0x41, 0x51, None],
None, None, None, None, 0x41, 0x51, None, None],
'eor.w': [None, None, None, None, None, 0x4D, 0x5D, 0x59,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'inc': [None, None, 0xE6, 0xF6, None, 0xEE, 0xFE, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'inc.w': [None, None, None, None, None, 0xEE, 0xFE, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'inx': [0xE8, None, None, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'iny': [0xC8, None, None, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'jmp': [None, None, None, None, None, 0x4C, None, None,
0x6C, None, None, None, None, None, None],
0x6C, None, None, None, None, None, None, None],
'jsr': [None, None, None, None, None, 0x20, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'lda': [None, 0xA9, 0xA5, 0xB5, None, 0xAD, 0xBD, 0xB9,
None, None, None, None, 0xA1, 0xB1, None],
None, None, None, None, 0xA1, 0xB1, None, None],
'lda.w': [None, None, None, None, None, 0xAD, 0xBD, 0xB9,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'ldx': [None, 0xA2, 0xA6, None, 0xB6, 0xAE, None, 0xBE,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'ldx.w': [None, None, None, None, None, 0xAE, None, 0xBE,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'ldy': [None, 0xA0, 0xA4, 0xB4, None, 0xAC, 0xBC, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'ldy.w': [None, None, None, None, None, 0xAC, 0xBC, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'lsr': [0x4A, None, 0x46, 0x56, None, 0x4E, 0x5E, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'lsr.w': [None, None, None, None, None, 0x4E, 0x5E, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'nop': [0xEA, None, None, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'ora': [None, 0x09, 0x05, 0x15, None, 0x0D, 0x1D, 0x19,
None, None, None, None, 0x01, 0x11, None],
None, None, None, None, 0x01, 0x11, None, None],
'ora.w': [None, None, None, None, None, 0x0D, 0x1D, 0x19,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'pha': [0x48, None, None, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'php': [0x08, None, None, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'pla': [0x68, None, None, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'plp': [0x28, None, None, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'rol': [0x2A, None, 0x26, 0x36, None, 0x2E, 0x3E, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'rol.w': [None, None, None, None, None, 0x2E, 0x3E, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'ror': [0x6A, None, 0x66, 0x76, None, 0x6E, 0x7E, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'ror.w': [None, None, None, None, None, 0x6E, 0x7E, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'rti': [0x40, None, None, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'rts': [0x60, None, None, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'sbc': [None, 0xE9, 0xE5, 0xF5, None, 0xED, 0xFD, 0xF9,
None, None, None, None, 0xE1, 0xF1, None],
None, None, None, None, 0xE1, 0xF1, None, None],
'sbc.w': [None, None, None, None, None, 0xED, 0xFD, 0xF9,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'sec': [0x38, None, None, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'sed': [0xF8, None, None, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'sei': [0x78, None, None, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'sta': [None, None, 0x85, 0x95, None, 0x8D, 0x9D, 0x99,
None, None, None, None, 0x81, 0x91, None],
None, None, None, None, 0x81, 0x91, None, None],
'sta.w': [None, None, None, None, None, 0x8D, 0x9D, 0x99,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'stx': [None, None, 0x86, None, 0x96, 0x8E, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'stx.w': [None, None, None, None, None, 0x8E, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'sty': [None, None, 0x84, 0x94, None, 0x8C, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'sty.w': [None, None, None, None, None, 0x8C, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'tax': [0xAA, None, None, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'tay': [0xA8, None, None, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'tsx': [0xBA, None, None, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'txa': [0x8A, None, None, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'txs': [0x9A, None, None, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'tya': [0x98, None, None, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
}
undocops = {
'anc': [None, 0x0B, None, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'ane': [None, 0x8B, None, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'arr': [None, 0x6B, None, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'asr': [None, 0x4B, None, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'dcp': [None, None, 0xC7, 0xD7, None, 0xCF, 0xDF, 0xDB,
None, None, None, None, 0xC3, 0xD3, None],
None, None, None, None, 0xC3, 0xD3, None, None],
'isb': [None, None, 0xE7, 0xF7, None, 0xEF, 0xFF, 0xFB,
None, None, None, None, 0xE3, 0xF3, None],
None, None, None, None, 0xE3, 0xF3, None, None],
'las': [None, None, None, None, None, None, None, 0xBB,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'lax': [None, None, 0xA7, None, 0xB7, 0xAF, None, 0xBF,
None, None, None, None, 0xA3, 0xB3, None],
None, None, None, None, 0xA3, 0xB3, None, None],
'lxa': [None, 0xAB, None, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'nop': [0xEA, None, 0x04, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'rla': [None, None, 0x27, 0x37, None, 0x2F, 0x3F, 0x3B,
None, None, None, None, 0x23, 0x33, None],
None, None, None, None, 0x23, 0x33, None, None],
'rra': [None, None, 0x67, 0x77, None, 0x6F, 0x7F, 0x7B,
None, None, None, None, 0x63, 0x73, None],
None, None, None, None, 0x63, 0x73, None, None],
'sax': [None, None, 0x87, None, 0x97, 0x8F, None, None,
None, None, None, None, 0x83, None, None],
None, None, None, None, 0x83, None, None, None],
'sbx': [None, 0xCB, None, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'sha': [None, None, None, None, None, None, None, 0x9F,
None, None, None, None, None, 0x93, None],
None, None, None, None, None, 0x93, None, None],
'shs': [None, None, None, None, None, None, None, 0x9B,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'shx': [None, None, None, None, None, None, None, 0x9E,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'slo': [None, None, 0x07, 0x17, None, 0x0F, 0x1F, 0x1B,
None, None, None, None, 0x03, 0x13, None],
None, None, None, None, 0x03, 0x13, None, None],
'sre': [None, None, 0x47, 0x57, None, 0x4F, 0x5F, 0x5B,
None, None, None, None, 0x43, 0x53, None],
None, None, None, None, 0x43, 0x53, None, None],
}
c02extensions = {
'adc': [None, 0x69, 0x65, 0x75, None, 0x6D, 0x7D, 0x79,
None, None, None, 0x72, 0x61, 0x71, None],
None, None, None, 0x72, 0x61, 0x71, None, None],
'and': [None, 0x29, 0x25, 0x35, None, 0x2D, 0x3D, 0x39,
None, None, None, 0x32, 0x21, 0x31, None],
None, None, None, 0x32, 0x21, 0x31, None, None],
'bbr0': [None, None, None, None, None, None, None, None,
None, None, None, None, None, None, 0x0F],
None, None, None, None, None, None, None, 0x0F],
'bbr1': [None, None, None, None, None, None, None, None,
None, None, None, None, None, None, 0x1F],
None, None, None, None, None, None, None, 0x1F],
'bbr2': [None, None, None, None, None, None, None, None,
None, None, None, None, None, None, 0x2F],
None, None, None, None, None, None, None, 0x2F],
'bbr3': [None, None, None, None, None, None, None, None,
None, None, None, None, None, None, 0x3F],
None, None, None, None, None, None, None, 0x3F],
'bbr4': [None, None, None, None, None, None, None, None,
None, None, None, None, None, None, 0x4F],
None, None, None, None, None, None, None, 0x4F],
'bbr5': [None, None, None, None, None, None, None, None,
None, None, None, None, None, None, 0x5F],
None, None, None, None, None, None, None, 0x5F],
'bbr6': [None, None, None, None, None, None, None, None,
None, None, None, None, None, None, 0x6F],
None, None, None, None, None, None, None, 0x6F],
'bbr7': [None, None, None, None, None, None, None, None,
None, None, None, None, None, None, 0x7F],
None, None, None, None, None, None, None, 0x7F],
'bbs0': [None, None, None, None, None, None, None, None,
None, None, None, None, None, None, 0x8F],
None, None, None, None, None, None, None, 0x8F],
'bbs1': [None, None, None, None, None, None, None, None,
None, None, None, None, None, None, 0x9F],
None, None, None, None, None, None, None, 0x9F],
'bbs2': [None, None, None, None, None, None, None, None,
None, None, None, None, None, None, 0xAF],
None, None, None, None, None, None, None, 0xAF],
'bbs3': [None, None, None, None, None, None, None, None,
None, None, None, None, None, None, 0xBF],
None, None, None, None, None, None, None, 0xBF],
'bbs4': [None, None, None, None, None, None, None, None,
None, None, None, None, None, None, 0xCF],
None, None, None, None, None, None, None, 0xCF],
'bbs5': [None, None, None, None, None, None, None, None,
None, None, None, None, None, None, 0xDF],
None, None, None, None, None, None, None, 0xDF],
'bbs6': [None, None, None, None, None, None, None, None,
None, None, None, None, None, None, 0xEF],
None, None, None, None, None, None, None, 0xEF],
'bbs7': [None, None, None, None, None, None, None, None,
None, None, None, None, None, None, 0xFF],
None, None, None, None, None, None, None, 0xFF],
'bit': [None, 0x89, 0x24, 0x34, None, 0x2C, 0x3C, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'bra': [None, None, None, None, None, None, None, None,
None, None, None, None, None, None, 0x80],
None, None, None, None, None, None, 0x80, None],
'cmp': [None, 0xC9, 0xC5, 0xD5, None, 0xCD, 0xDD, 0xD9,
None, None, None, 0xD2, 0xC1, 0xD1, None],
None, None, None, 0xD2, 0xC1, 0xD1, None, None],
'dea': [0x3A, None, None, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'dec': [0x3A, None, 0xC6, 0xD6, None, 0xCE, 0xDE, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'eor': [None, 0x49, 0x45, 0x55, None, 0x4D, 0x5D, 0x59,
None, None, None, 0x52, 0x41, 0x51, None],
None, None, None, 0x52, 0x41, 0x51, None, None],
'ina': [0x1A, None, None, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'inc': [0x1A, None, 0xE6, 0xF6, None, 0xEE, 0xFE, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'jmp': [None, None, None, None, None, 0x4C, None, None,
0x6C, 0x7C, None, None, None, None, None],
0x6C, 0x7C, None, None, None, None, None, None],
'lda': [None, 0xA9, 0xA5, 0xB5, None, 0xAD, 0xBD, 0xB9,
None, None, None, 0xB2, 0xA1, 0xB1, None],
None, None, None, 0xB2, 0xA1, 0xB1, None, None],
'ora': [None, 0x09, 0x05, 0x15, None, 0x0D, 0x1D, 0x19,
None, None, None, 0x12, 0x01, 0x11, None],
None, None, None, 0x12, 0x01, 0x11, None, None],
'phx': [0xDA, None, None, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'phy': [0x5A, None, None, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'plx': [0xFA, None, None, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'ply': [0x7A, None, None, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'rmb0': [None, None, 0x07, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'rmb1': [None, None, 0x17, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'rmb2': [None, None, 0x27, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'rmb3': [None, None, 0x37, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'rmb4': [None, None, 0x47, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'rmb5': [None, None, 0x57, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'rmb6': [None, None, 0x67, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'rmb7': [None, None, 0x77, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'sbc': [None, 0xE9, 0xE5, 0xF5, None, 0xED, 0xFD, 0xF9,
None, None, None, 0xF2, 0xE1, 0xF1, None],
None, None, None, 0xF2, 0xE1, 0xF1, None, None],
'smb0': [None, None, 0x87, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'smb1': [None, None, 0x97, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'smb2': [None, None, 0xA7, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'smb3': [None, None, 0xB7, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'smb4': [None, None, 0xC7, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'smb5': [None, None, 0xD7, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'smb6': [None, None, 0xE7, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'smb7': [None, None, 0xF7, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'sta': [None, None, 0x85, 0x95, None, 0x8D, 0x9D, 0x99,
None, None, None, 0x92, 0x81, 0x91, None],
None, None, None, 0x92, 0x81, 0x91, None, None],
'stp': [0xDB, None, None, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'stz': [None, None, 0x64, 0x74, None, 0x9C, 0x9E, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'stz.w': [None, None, None, None, None, 0x9C, 0x9E, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'trb': [None, None, 0x14, None, None, 0x1C, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'trb.w': [None, None, None, None, None, 0x1C, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'tsb': [None, None, 0x04, None, None, 0x0C, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'tsb.w': [None, None, None, None, None, 0x0C, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
'wai': [0xCB, None, None, None, None, None, None, None,
None, None, None, None, None, None, None],
None, None, None, None, None, None, None, None],
}

84
src/Ophis/Passes.py
View File

@ -273,6 +273,9 @@ class EasyModes(Pass):
if not collapse_y(node, env):
node.nodetype = "AbsoluteY"
def visitMemory2(self, node, env):
node.nodetype = "ZPRelative"
def visitPointer(self, node, env):
if node.data[1].hardcoded:
if not collapse_no_index_ind(node, env):
@ -329,6 +332,9 @@ class PCTracker(Pass):
def visitRelative(self, node, env):
env.incPC(2)
def visitZPRelative(self, node, env):
env.incPC(3)
def visitIndirect(self, node, env):
env.incPC(3)
@ -564,13 +570,13 @@ class ExtendBranches(PCTracker):
self.changed = False
def visitRelative(self, node, env):
(opcode, expr) = node.data
(opcode, expr) = node.data[:2]
arg = expr.value(env)
arg = arg - (env.getPC() + 2)
if arg < -128 or arg > 127:
if opcode == 'bra':
# If BRA - BRanch Always - is out of range, it's a JMP.
node.data = ('jmp', expr)
node.data = ('jmp', expr, None)
node.nodetype = "Absolute"
if Cmd.warn_on_branch_extend:
print>>sys.stderr, str(node.ppt) + ": WARNING: " \
@ -584,8 +590,9 @@ class ExtendBranches(PCTracker):
expansion = [IR.Node(node.ppt, "Relative",
ExtendBranches.reversed[opcode],
IR.SequenceExpr([IR.PCExpr(), "+",
IR.ConstantExpr(5)])),
IR.Node(node.ppt, "Absolute", 'jmp', expr)]
IR.ConstantExpr(5)]),
None),
IR.Node(node.ppt, "Absolute", 'jmp', expr, None)]
node.nodetype = 'SEQUENCE'
node.data = expansion
if Cmd.warn_on_branch_extend:
@ -597,7 +604,36 @@ class ExtendBranches(PCTracker):
self.changed = True
node.accept(self, env)
else:
env.incPC(2)
PCTracker.visitRelative(self, node, env)
def visitZPRelative(self, node, env):
(opcode, tested, expr) = node.data
arg = expr.value(env)
arg = arg - (env.getPC() + 3)
if arg < -128 or arg > 127:
# Otherwise, we replace it with a 'macro' of sorts by hand:
# $branch LOC -> $reversed_branch ^+6; JMP LOC
# We don't use temp labels here because labels need to have
# been fixed in place by this point, and JMP is always 3
# bytes long.
expansion = [IR.Node(node.ppt, "ZPRelative",
ExtendBranches.reversed[opcode],
tested,
IR.SequenceExpr([IR.PCExpr(), "+",
IR.ConstantExpr(6)])),
IR.Node(node.ppt, "Absolute", 'jmp', expr, None)]
node.nodetype = 'SEQUENCE'
node.data = expansion
if Cmd.warn_on_branch_extend:
print>>sys.stderr, str(node.ppt) + ": WARNING: " + \
opcode + " out of range, " \
"replacing with " + \
ExtendBranches.reversed[opcode] + \
"/jmp combo"
self.changed = True
node.accept(self, env)
else:
PCTracker.visitZPRelative(self, node, env)
class NormalizeModes(Pass):
@ -710,9 +746,20 @@ class Assembler(Pass):
else:
Err.log("Attempt to write to data segment")
def relativize(self, expr, env, arglen):
"Convert an expression into one for use in relative addressing"
arg = expr.value(env)
arg = arg - (env.getPC() + arglen + 1)
if arg < -128 or arg > 127:
Err.log("Branch target out of bounds")
arg = 0
if arg < 0:
arg += 256
return IR.ConstantExpr(arg)
def assemble(self, node, mode, env):
"A generic instruction called by the visitor methods themselves"
(opcode, expr) = node.data
(opcode, expr, expr2) = node.data
bin_op = Ops.opcodes[opcode][mode]
if bin_op is None:
Err.log('%s does not have mode "%s"' % (opcode.upper(),
@ -720,19 +767,17 @@ class Assembler(Pass):
return
self.outputbyte(IR.ConstantExpr(bin_op), env)
arglen = Ops.lengths[mode]
if mode == 14: # Special handling for relative mode
arg = expr.value(env)
arg = arg - (env.getPC() + 2)
if arg < -128 or arg > 127:
Err.log("Branch target out of bounds")
arg = 0
if arg < 0:
arg += 256
expr = IR.ConstantExpr(arg)
if arglen == 1:
if mode == 15: # ZP Relative mode is wildly nonstandard
expr2 = self.relativize(expr2, env, arglen)
self.outputbyte(expr, env)
if arglen == 2:
self.outputword(expr, env)
self.outputbyte(expr2, env)
else:
if mode == 14:
expr = self.relativize(expr, env, arglen)
if arglen == 1:
self.outputbyte(expr, env)
elif arglen == 2:
self.outputword(expr, env)
env.incPC(1 + arglen)
self.code += 1 + arglen
@ -781,6 +826,9 @@ class Assembler(Pass):
def visitRelative(self, node, env):
self.assemble(node, 14, env)
def visitZPRelative(self, node, env):
self.assemble(node, 15, env)
def visitLabel(self, node, env):
pass

64
src/tools/opcodes/gensets.py
View File

@ -17,43 +17,45 @@ prologue = '"""' + """Opcodes file.
# the tables in tools/opcodes. Edit those tables, not these.
# Names of addressing modes
modes = ["Implied", # 0
"Immediate", # 1
"Zero Page", # 2
"Zero Page, X", # 3
"Zero Page, Y", # 4
"Absolute", # 5
"Absolute, X", # 6
"Absolute, Y", # 7
"(Absolute)", # 8
"(Absolute, X)", # 9
"(Absolute), Y", # 10
"(Zero Page)", # 11
"(Zero Page, X)", # 12
"(Zero Page), Y", # 13
"Relative"] # 14
modes = ["Implied", # 0
"Immediate", # 1
"Zero Page", # 2
"Zero Page, X", # 3
"Zero Page, Y", # 4
"Absolute", # 5
"Absolute, X", # 6
"Absolute, Y", # 7
"(Absolute)", # 8
"(Absolute, X)", # 9
"(Absolute), Y", # 10
"(Zero Page)", # 11
"(Zero Page, X)", # 12
"(Zero Page), Y", # 13
"Relative", # 14
"Zero Page, Relative"] # 15
# Lengths of the argument
lengths = [0, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1]
lengths = [0, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 2]
"""
# These values should match the ones in the prologue string.
modes = ["Implied", # 0
"Immediate", # 1
"Zero Page", # 2
"Zero Page, X", # 3
"Zero Page, Y", # 4
"Absolute", # 5
"Absolute, X", # 6
"Absolute, Y", # 7
"(Absolute)", # 8
"(Absolute, X)", # 9
"(Absolute), Y", # 10
"(Zero Page)", # 11
"(Zero Page, X)", # 12
"(Zero Page), Y", # 13
"Relative"] # 14
modes = ["Implied", # 0
"Immediate", # 1
"Zero Page", # 2
"Zero Page, X", # 3
"Zero Page, Y", # 4
"Absolute", # 5
"Absolute, X", # 6
"Absolute, Y", # 7
"(Absolute)", # 8
"(Absolute, X)", # 9
"(Absolute), Y", # 10
"(Zero Page)", # 11
"(Zero Page, X)", # 12
"(Zero Page), Y", # 13
"Relative", # 14
"Zero Page, Relative"] # 15
flatmodes = [x.lower() for x in modes]

32
src/tools/opcodes/op65c02.txt
View File

@ -13,7 +13,7 @@
0C: TSB - Absolute; TSB.W - Absolute
0D: ORA - Absolute
0E: ASL - Absolute
0F: BBR0 - Relative
0F: BBR0 - Zero Page, Relative
10: BPL - Relative
11: ORA - (Zero Page), Y
12: ORA - (Zero Page)
@ -29,7 +29,7 @@
1C: TRB - Absolute; TRB.W - Absolute
1D: ORA - Absolute, X
1E: ASL - Absolute, X
1F: BBR1 - Relative
1F: BBR1 - Zero Page, Relative
20: JSR - Absolute
21: AND - (Zero Page, X)
22:
@ -45,7 +45,7 @@
2C: BIT - Absolute
2D: AND - Absolute
2E: ROL - Absolute
2F: BBR2 - Relative
2F: BBR2 - Zero Page, Relative
30: BMI - Relative
31: AND - (Zero Page), Y
32: AND - (Zero Page)
@ -61,7 +61,7 @@
3C: BIT - Absolute, X
3D: AND - Absolute, X
3E: ROL - Absolute, X
3F: BBR3 - Relative
3F: BBR3 - Zero Page, Relative
40: RTI - Implied
41: EOR - (Zero Page, X)
42:
@ -77,7 +77,7 @@
4C: JMP - Absolute
4D: EOR - Absolute
4E: LSR - Absolute
4F: BBR4 - Relative
4F: BBR4 - Zero Page, Relative
50: BVC - Relative
51: EOR - (Zero Page), Y
52: EOR - (Zero Page)
@ -93,7 +93,7 @@
5C:
5D: EOR - Absolute, X
5E: LSR - Absolute, X
5F: BBR5 - Relative
5F: BBR5 - Zero Page, Relative
60: RTS - Implied
61: ADC - (Zero Page, X)
62:
@ -109,7 +109,7 @@
6C: JMP - (Absolute)
6D: ADC - Absolute
6E: ROR - Absolute
6F: BBR6 - Relative
6F: BBR6 - Zero Page, Relative
70: BVS - Relative
71: ADC - (Zero Page), Y
72: ADC - (Zero Page)
@ -125,7 +125,7 @@
7C: JMP - (Absolute, X)
7D: ADC - Absolute, X
7E: ROR - Absolute, X
7F: BBR7 - Relative
7F: BBR7 - Zero Page, Relative
80: BRA - Relative
81: STA - (Zero Page, X)
82:
@ -141,7 +141,7 @@
8C: STY - Absolute
8D: STA - Absolute
8E: STX - Absolute
8F: BBS0 - Relative
8F: BBS0 - Zero Page, Relative
90: BCC - Relative
91: STA - (Zero Page), Y
92: STA - (Zero Page)
@ -157,7 +157,7 @@
9C: STZ - Absolute; STZ.W - Absolute
9D: STA - Absolute, X
9E: STZ - Absolute, X; STZ.W - Absolute, X
9F: BBS1 - Relative
9F: BBS1 - Zero Page, Relative
A0: LDY - Immediate
A1: LDA - (Zero Page, X)
A2: LDX - Immediate
@ -173,7 +173,7 @@
AC: LDY - Absolute
AD: LDA - Absolute
AE: LDX - Absolute
AF: BBS2 - Relative
AF: BBS2 - Zero Page, Relative
B0: BCS - Relative
B1: LDA - (Zero Page), Y
B2: LDA - (Zero Page)
@ -189,7 +189,7 @@
BC: LDY - Absolute, X
BD: LDA - Absolute, X
BE: LDX - Absolute, Y
BF: BBS3 - Relative
BF: BBS3 - Zero Page, Relative
C0: CPY - Immediate
C1: CMP - (Zero Page, X)
C2:
@ -205,7 +205,7 @@
CC: CPY - Absolute
CD: CMP - Absolute
CE: DEC - Absolute
CF: BBS4 - Relative
CF: BBS4 - Zero Page, Relative
D0: BNE - Relative
D1: CMP - (Zero Page), Y
D2: CMP - (Zero Page)
@ -221,7 +221,7 @@
DC:
DD: CMP - Absolute, X
DE: DEC - Absolute, X
DF: BBS5 - Relative
DF: BBS5 - Zero Page, Relative
E0: CPX - Immediate
E1: SBC - (Zero Page, X)
E2:
@ -237,7 +237,7 @@
EC: CPX - Absolute
ED: SBC - Absolute
EE: INC - Absolute
EF: BBS6 - Relative
EF: BBS6 - Zero Page, Relative
F0: BEQ - Relative
F1: SBC - (Zero Page), Y
F2: SBC - (Zero Page)
@ -253,4 +253,4 @@
FC:
FD: SBC - Absolute, X
FE: INC - Absolute, X
FF: BBS7 - Relative
FF: BBS7 - Zero Page, Relative

BIN
tests/branch_c02.bin
View File

Binary file not shown.

130
tests/branch_c02.oph
View File

@ -1,74 +1,74 @@
.text
.org $0800
early:
bbr0 late
bbr1 late
bbr2 late
bbr3 late
bbr4 late
bbr5 late
bbr6 late
bbr7 late
bbr0 $42, late
bbr1 $42, late
bbr2 $42, late
bbr3 $42, late
bbr4 $42, late
bbr5 $42, late
bbr6 $42, late
bbr7 $42, late
bra late
bbs0 late
bbs1 late
bbs2 late
bbs3 late
bbs4 late
bbs5 late
bbs6 late
bbs7 late
bbr0 early
bbr1 early
bbr2 early
bbr3 early
bbr4 early
bbr5 early
bbr6 early
bbr7 early
bbs0 $42, late
bbs1 $42, late
bbs2 $42, late
bbs3 $42, late
bbs4 $42, late
bbs5 $42, late
bbs6 $42, late
bbs7 $42, late
bbr0 $42, early
bbr1 $42, early
bbr2 $42, early
bbr3 $42, early
bbr4 $42, early
bbr5 $42, early
bbr6 $42, early
bbr7 $42, early
bra early
bbs0 early
bbs1 early
bbs2 early
bbs3 early
bbs4 early
bbs5 early
bbs6 early
bbs7 early
early2:
bbs0 $42, early2
bbs1 $42, early2
bbs2 $42, early2
bbs3 $42, early2
bbs4 $42, early2
bbs5 $42, early2
bbs6 $42, early2
bbs7 $42, early2
.advance ^+256
late:
bbr0 late
bbr1 late
bbr2 late
bbr3 late
bbr4 late
bbr5 late
bbr6 late
bbr7 late
bbr0 $42, late
bbr1 $42, late
bbr2 $42, late
bbr3 $42, late
bbr4 $42, late
bbr5 $42, late
bbr6 $42, late
bbr7 $42, late
bra late
bbs0 late
bbs1 late
bbs2 late
bbs3 late
bbs4 late
bbs5 late
bbs6 late
bbs7 late
bbr0 early
bbr1 early
bbr2 early
bbr3 early
bbr4 early
bbr5 early
bbr6 early
bbr7 early
bbs0 $42, late
bbs1 $42, late
bbs2 $42, late
bbs3 $42, late
bbs4 $42, late
bbs5 $42, late
bbs6 $42, late
bbs7 $42, late
bbr0 $42, early
bbr1 $42, early
bbr2 $42, early
bbr3 $42, early
bbr4 $42, early
bbr5 $42, early
bbr6 $42, early
bbr7 $42, early
bra early
bbs0 early
bbs1 early
bbs2 early
bbs3 early
bbs4 early
bbs5 early
bbs6 early
bbs7 early
bbs0 $42, early
bbs1 $42, early
bbs2 $42, early
bbs3 $42, early
bbs4 $42, early
bbs5 $42, early
bbs6 $42, early
bbs7 $42, early

129
tests/branch_c02_ref.oph
View File

@ -1,106 +1,107 @@
.text
.org $0800
early:
bbs0 +
bbs0 $42, +
jmp late
* bbs1 +
* bbs1 $42, +
jmp late
* bbs2 +
* bbs2 $42, +
jmp late
* bbs3 +
* bbs3 $42, +
jmp late
* bbs4 +
* bbs4 $42, +
jmp late
* bbs5 +
* bbs5 $42, +
jmp late
* bbs6 +
* bbs6 $42, +
jmp late
* bbs7 +
* bbs7 $42, +
jmp late
* jmp late
* bbr0 +
* bbr0 $42, +
jmp late
* bbr1 +
* bbr1 $42, +
jmp late
* bbr2 +
* bbr2 $42, +
jmp late
* bbr3 +
* bbr3 $42, +
jmp late
* bbr4 +
* bbr4 $42, +
jmp late
* bbr5 +
* bbr5 $42, +
jmp late
* bbr6 +
* bbr6 $42, +
jmp late
* bbr7 +
* bbr7 $42, +
jmp late
* bbr0 early
bbr1 early
bbr2 early
bbr3 early
bbr4 early
bbr5 early
bbr6 early
bbr7 early
* bbr0 $42, early
bbr1 $42, early
bbr2 $42, early
bbr3 $42, early
bbr4 $42, early
bbr5 $42, early
bbr6 $42, early
bbr7 $42, early
bra early
bbs0 early
bbs1 early
bbs2 early
bbs3 early
bbs4 early
bbs5 early
bbs6 early
bbs7 early
early2:
bbs0 $42, early2
bbs1 $42, early2
bbs2 $42, early2
bbs3 $42, early2
bbs4 $42, early2
bbs5 $42, early2
bbs6 $42, early2
bbs7 $42, early2
.advance ^+256
late:
bbr0 late
bbr1 late
bbr2 late
bbr3 late
bbr4 late
bbr5 late
bbr6 late
bbr7 late
bbr0 $42, late
bbr1 $42, late
bbr2 $42, late
bbr3 $42, late
bbr4 $42, late
bbr5 $42, late
bbr6 $42, late
bbr7 $42, late
bra late
bbs0 late
bbs1 late
bbs2 late
bbs3 late
bbs4 late
bbs5 late
bbs6 late
bbs7 late
bbs0 +
bbs0 $42, late
bbs1 $42, late
bbs2 $42, late
bbs3 $42, late
bbs4 $42, late
bbs5 $42, late
bbs6 $42, late
bbs7 $42, late
bbs0 $42, +
jmp early
* bbs1 +
* bbs1 $42, +
jmp early
* bbs2 +
* bbs2 $42, +
jmp early
* bbs3 +
* bbs3 $42, +
jmp early
* bbs4 +
* bbs4 $42, +
jmp early
* bbs5 +
* bbs5 $42, +
jmp early
* bbs6 +
* bbs6 $42, +
jmp early
* bbs7 +
* bbs7 $42, +
jmp early
* jmp early
bbr0 +
bbr0 $42, +
jmp early
* bbr1 +
* bbr1 $42, +
jmp early
* bbr2 +
* bbr2 $42, +
jmp early
* bbr3 +
* bbr3 $42, +
jmp early
* bbr4 +
* bbr4 $42, +
jmp early
* bbr5 +
* bbr5 $42, +
jmp early
* bbr6 +
* bbr6 $42, +
jmp early
* bbr7 +
* bbr7 $42, +
jmp early
*

BIN
tests/test65c02.bin
View File

Binary file not shown.

32
tests/test65c02.oph
View File

@ -12,63 +12,63 @@
TSB $04 ; 04: TSB - Zero Page
RMB0 $07 ; 07: RMB0 - Zero Page
TSB $0C0C ; 0C: TSB - Absolute
BBR0 ^+$11 ; 0F: BBR0 - Relative
BBR0 $0F, ^+$12 ; 0F: BBR0 - Zero Page, Relative
ORA ($12) ; 12: ORA - (Zero Page)
TRB $14 ; 14: TRB - Zero Page
RMB1 $17 ; 17: RMB1 - Zero Page
INA ; 1A: INA - Implied
INC ; INC - Implied
TRB $1C1C ; 1C: TRB - Absolute
BBR1 ^+$21 ; 1F: BBR1 - Relative
BBR1 $1F, ^+$22 ; 1F: BBR1 - Zero Page, Relative
RMB2 $27 ; 27: RMB2 - Zero Page
BBR2 ^+$31 ; 2F: BBR2 - Relative
BBR2 $2F, ^+$32 ; 2F: BBR2 - Zero Page, Relative
AND ($32) ; 32: AND - (Zero Page)
BIT $34, X ; 34: BIT - Zero Page, X
RMB3 $37 ; 37: RMB3 - Zero Page
DEA ; 3A: DEA - Implied
DEC ; 3A: DEC - Implied
BIT $3C3C,X ; 3C: BIT - Absolute, X
BBR3 ^+$41 ; 3F: BBR3 - Relative
BBR3 $3F, ^+$42 ; 3F: BBR3 - Zero Page, Relative
RMB4 $47 ; 47: RMB4 - Zero Page
BBR4 ^+$51 ; 4F: BBR4 - Relative
BBR4 $4F, ^+$52 ; 4F: BBR4 - Zero Page, Relative
EOR ($52) ; 52: EOR - (Zero Page)
RMB5 $57 ; 57: RMB5 - Zero Page
PHY ; 5A: PHY - Implied
BBR5 ^+$61 ; 5F: BBR5 - Relative
BBR5 $5F, ^+$62 ; 5F: BBR5 - Zero Page, Relative
STZ $64 ; 64: STZ - Zero Page
RMB6 $67 ; 67: RMB6 - Zero Page
BBR6 ^+$71 ; 6F: BBR6 - Relative
BBR6 $6F, ^+$72 ; 6F: BBR6 - Zero Page, Relative
ADC ($72) ; 72: ADC - (Zero Page)
STZ $74, X ; 74: STZ - Zero Page, X
RMB7 $77 ; 77: RMB7 - Zero Page
PLY ; 7A: PLY - Implied
JMP ($7C7C, X) ; 7C: JMP - (Absolute, X)
BBR7 ^+$81 ; 7F: BBR7 - Relative
BBR7 $7F, ^+$82 ; 7F: BBR7 - Zero Page, Relative
BRA ^-$7E ; 80: BRA - Relative
SMB0 $87 ; 87: SMB0 - Zero Page
BIT #$89 ; 89: BIT - Immediate
BBS0 ^-$6F ; 8F: BBS0 - Relative
BBS0 $8F, ^-$6E ; 8F: BBS0 - Zero Page, Relative
STA ($92) ; 92: STA - (Zero Page)
SMB1 $97 ; 97: SMB1 - Zero Page
STZ $9C9C ; 9C: STZ - Absolute
STZ $9E9E, X ; 9E: STZ - Absolute, X
BBS1 ^-$5F ; 9F: BBS1 - Relative
BBS1 $9F, ^-$5E ; 9F: BBS1 - Zero Page, Relative
SMB2 $A7 ; A7: SMB2 - Zero Page
BBS2 ^-$4F ; AF: BBS2 - Relative
BBS2 $AF, ^-$4E ; AF: BBS2 - Zero Page, Relative
LDA ($B2) ; B2: LDA - (Zero Page)
SMB3 $B7 ; B7: SMB3 - Zero Page
BBS3 ^-$3F ; BF: BBS3 - Relative
BBS3 $BF, ^-$3E ; BF: BBS3 - Zero Page, Relative
SMB4 $C7 ; C7: SMB4 - Zero Page
WAI ; CB: WAI - Implied
BBS4 ^-$2F ; CF: BBS4 - Relative
BBS4 $CF, ^-$2E ; CF: BBS4 - Zero Page, Relative
CMP ($D2) ; D2: CMP - (Zero Page)
SMB5 $D7 ; D7: SMB5 - Zero Page
PHX ; DA: PHX - Implied
STP ; DB: STP - Implied
BBS5 ^-$1F ; DF: BBS5 - Relative
BBS5 $DF, ^-$1E ; DF: BBS5 - Zero Page, Relative
SMB6 $E7 ; E7: SMB6 - Zero Page
BBS6 ^-$0F ; EF: BBS6 - Relative
BBS6 $EF, ^-$0E ; EF: BBS6 - Zero Page, Relative
SBC ($F2) ; F2: SBC - (Zero Page)
SMB7 $F7 ; F7: SMB7 - Zero Page
PLX ; FA: PLX - Implied
BBS7 ^+$01 ; FF: BBS7 - Relative
BBS7 $FF, ^+$02 ; FF: BBS7 - Zero Page, Relative