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293 lines
7.4 KiB
293 lines
7.4 KiB
2 years ago
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#!/usr/bin/env python3
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from sys import argv
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base = 0x2000
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file = argv[1]
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addr = int(argv[2], 16) - base
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instrs = {
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0x00: ("brk", 1),
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0x01: ("mul_r0", 3),
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0x02: ("mul_r0_r1", 1),
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0x03: ("div_r0", 3),
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0x04: ("div_r0_r1", 1),
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0x05: ("ret", 1),
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0x06: ("copr", 2),
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0x07: ("illegal_07", 1),
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0x08: ("nop", 1),
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0x09: ("ld_sp", 3),
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0x0a: ("ld_r0_sp", 1),
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0x0b: ("ld_sp_r0", 1),
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0x0c: ("nop_0c", 1),
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0x0d: ("illegal_0d", 1),
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0x0e: ("shl_r0", 1),
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0x0f: ("shr_r0", 1),
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0x10: ("ld_r0", 3),
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0x11: ("ld_r1", 3),
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0x12: ("ld_r2", 3),
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0x13: ("ld_r3", 3),
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0x14: ("illegal_14", 1),
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0x15: ("illegal_15", 1),
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0x16: ("illegal_16", 1),
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0x17: ("illegal_17", 1),
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0x18: ("illegal_18", 1),
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0x19: ("illegal_19", 1),
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0x1a: ("illegal_1a", 1),
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0x1b: ("illegal_1b", 1),
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0x1c: ("illegal_1c", 1),
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0x1d: ("illegal_1d", 1),
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0x1e: ("illegal_1e", 1),
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0x1f: ("illegal_1f", 1),
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0x20: ("ld_r0_r0", 1),
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0x21: ("ld_r0_r1", 1),
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0x22: ("ld_r0_r2", 1),
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0x23: ("ld_r0_r3", 1),
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0x24: ("ld_r1_r0", 1),
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0x25: ("ld_r1_r1", 1),
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0x26: ("ld_r1_r2", 1),
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0x27: ("ld_r1_r3", 1),
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0x28: ("ld_r2_r0", 1),
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0x29: ("ld_r2_r1", 1),
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0x2a: ("ld_r2_r2", 1),
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0x2b: ("ld_r2_r3", 1),
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0x2c: ("ld_r3_r0", 1),
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0x2d: ("ld_r3_r1", 1),
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0x2e: ("ld_r3_r2", 1),
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0x2f: ("ld_r3_r3", 1),
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0x30: ("add_r0_r0", 1),
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0x31: ("add_r0_r1", 1),
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0x32: ("add_r0_r2", 1),
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0x33: ("add_r0_r3", 1),
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0x34: ("add_r1_r0", 1),
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0x35: ("add_r1_r1", 1),
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0x36: ("add_r1_r2", 1),
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0x37: ("add_r1_r3", 1),
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0x38: ("add_r2_r0", 1),
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0x39: ("add_r2_r1", 1),
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0x3a: ("add_r2_r2", 1),
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0x3b: ("add_r2_r3", 1),
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0x3c: ("add_r3_r0", 1),
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0x3d: ("add_r3_r1", 1),
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0x3e: ("add_r3_r2", 1),
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0x3f: ("add_r3_r3", 1),
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0x40: ("ldrb_r0_r0", 1),
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0x41: ("ldrb_r0_r1", 1),
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0x42: ("ldrb_r0_r2", 1),
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0x43: ("ldrb_r0_r3", 1),
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0x44: ("ldrb_r1_r0", 1),
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0x45: ("ldrb_r1_r1", 1),
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0x46: ("ldrb_r1_r2", 1),
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0x47: ("ldrb_r1_r3", 1),
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0x48: ("ldrb_r2_r0", 1),
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0x49: ("ldrb_r2_r1", 1),
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0x4a: ("ldrb_r2_r2", 1),
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0x4b: ("ldrb_r2_r3", 1),
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0x4c: ("ldrb_r3_r0", 1),
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0x4d: ("ldrb_r3_r1", 1),
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0x4e: ("ldrb_r3_r2", 1),
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0x4f: ("ldrb_r3_r3", 1),
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0x50: ("ldr_r0_r0", 1),
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0x51: ("ldr_r0_r1", 1),
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0x52: ("ldr_r0_r2", 1),
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0x53: ("ldr_r0_r3", 1),
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0x54: ("ldr_r1_r0", 1),
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0x55: ("ldr_r1_r1", 1),
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0x56: ("ldr_r1_r2", 1),
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0x57: ("ldr_r1_r3", 1),
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0x58: ("ldr_r2_r0", 1),
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0x59: ("ldr_r2_r1", 1),
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0x5a: ("ldr_r2_r2", 1),
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0x5b: ("ldr_r2_r3", 1),
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0x5c: ("ldr_r3_r0", 1),
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0x5d: ("ldr_r3_r1", 1),
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0x5e: ("ldr_r3_r2", 1),
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0x5f: ("ldr_r3_r3", 1),
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0x60: ("strb_r0_r0", 1),
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0x61: ("strb_r1_r0", 1),
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0x62: ("strb_r2_r0", 1),
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0x63: ("strb_r3_r0", 1),
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0x64: ("strb_r0_r1", 1),
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0x65: ("strb_r1_r1", 1),
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0x66: ("strb_r2_r1", 1),
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0x67: ("strb_r3_r1", 1),
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0x68: ("strb_r0_r2", 1),
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0x69: ("strb_r1_r2", 1),
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0x6a: ("strb_r2_r2", 1),
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0x6b: ("strb_r3_r2", 1),
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0x6c: ("strb_r0_r3", 1),
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0x6d: ("strb_r1_r3", 1),
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0x6e: ("strb_r2_r3", 1),
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0x6f: ("strb_r3_r3", 1),
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0x70: ("str_r0_r0", 1),
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0x71: ("str_r1_r0", 1),
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0x72: ("str_r2_r0", 1),
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0x73: ("str_r3_r0", 1),
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0x74: ("str_r0_r1", 1),
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0x75: ("str_r1_r1", 1),
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0x76: ("str_r2_r1", 1),
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0x77: ("str_r3_r1", 1),
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0x78: ("str_r0_r2", 1),
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0x79: ("str_r1_r2", 1),
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0x7a: ("str_r2_r2", 1),
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0x7b: ("str_r3_r2", 1),
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0x7c: ("str_r0_r3", 1),
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0x7d: ("str_r1_r3", 1),
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0x7e: ("str_r2_r3", 1),
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0x7f: ("str_r3_r3", 1),
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0x80: ("cp_r0_r0", 1),
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0x81: ("cp_r0_r1", 1),
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0x82: ("cp_r0_r2", 1),
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0x83: ("cp_r0_r3", 1),
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0x84: ("cp_r1_r0", 1),
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0x85: ("cp_r1_r1", 1),
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0x86: ("cp_r1_r2", 1),
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0x87: ("cp_r1_r3", 1),
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0x88: ("cp_r2_r0", 1),
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0x89: ("cp_r2_r1", 1),
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0x8a: ("cp_r2_r2", 1),
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0x8b: ("cp_r2_r3", 1),
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0x8c: ("cp_r3_r0", 1),
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0x8d: ("cp_r3_r1", 1),
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0x8e: ("cp_r3_r2", 1),
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0x8f: ("cp_r3_r3", 1),
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0x90: ("push_r0", 1),
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0x91: ("push_r1", 1),
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0x92: ("push_r2", 1),
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0x93: ("push_r3", 1),
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0x94: ("pop_r0", 1),
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0x95: ("pop_r1", 1),
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0x96: ("pop_r2", 1),
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0x97: ("pop_r3", 1),
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0x98: ("jp", 3),
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0x99: ("call", 3),
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0x9a: ("jp_hi", 3),
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0x9b: ("jp_lo", 3),
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0x9c: ("jp_eq", 3),
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0x9d: ("jp_ne", 3),
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0x9e: ("call_hi", 3),
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0x9f: ("call_lo", 3),
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0xa0: ("call_eq", 3),
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0xa1: ("call_ne", 3),
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0xa2: ("cp_r0", 3),
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0xa3: ("cp_r1", 3),
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0xa4: ("cp_r2", 3),
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0xa5: ("cp_r3", 3),
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0xa6: ("push_sp", 1),
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0xa7: ("push_pc", 1),
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0xa8: ("inc_r0", 1),
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0xa9: ("inc_r1", 1),
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0xaa: ("inc_r2", 1),
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0xab: ("inc_r3", 1),
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0xac: ("dec_r0", 1),
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0xad: ("dec_r1", 1),
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0xae: ("dec_r2", 1),
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0xaf: ("dec_r3", 1),
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0xb0: ("ldrb_r0", 3),
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0xb1: ("ldrb_r1", 3),
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0xb2: ("ldrb_r2", 3),
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0xb3: ("ldrb_r3", 3),
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0xb4: ("ldr_r0", 3),
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0xb5: ("ldr_r1", 3),
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0xb6: ("ldr_r2", 3),
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0xb7: ("ldr_r3", 3),
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0xb8: ("strb_r0", 3),
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0xb9: ("strb_r1", 3),
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0xba: ("strb_r2", 3),
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0xbb: ("strb_r3", 3),
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0xbc: ("str_r0", 3),
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0xbd: ("str_r1", 3),
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0xbe: ("str_r2", 3),
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0xbf: ("str_r3", 3),
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0xc0: ("illegal_c0", 1),
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0xc1: ("illegal_c1", 1),
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0xc2: ("illegal_c2", 1),
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0xc3: ("illegal_c3", 1),
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0xc4: ("illegal_c4", 1),
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0xc5: ("jp_r0", 1),
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0xc6: ("jp_r1", 1),
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0xc7: ("jp_r2", 1),
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0xc8: ("jp_r3", 1),
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0xc9: ("call_r0", 1),
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0xca: ("call_r1", 1),
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0xcb: ("call_r2", 1),
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0xcc: ("call_r3", 1),
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0xcd: ("and_r0", 3),
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0xce: ("or_r0", 3),
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0xcf: ("xor_r0", 3),
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0xd0: ("and_r0_r0", 1),
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0xd1: ("and_r0_r1", 1),
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0xd2: ("and_r0_r2", 1),
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0xd3: ("and_r0_r3", 1),
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0xd4: ("or_r0_r0", 1),
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0xd5: ("or_r0_r1", 1),
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0xd6: ("or_r0_r2", 1),
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0xd7: ("or_r0_r3", 1),
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0xd8: ("xor_r0_r0", 1),
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0xd9: ("xor_r0_r1", 1),
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0xda: ("xor_r0_r2", 1),
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0xdb: ("xor_r0_r3", 1),
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0xdc: ("swap_r0", 1),
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0xdd: ("swap_r1", 1),
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0xde: ("swap_r2", 1),
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0xdf: ("swap_r3", 1),
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0xe0: ("add_r0", 3),
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0xe1: ("add_r1", 3),
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0xe2: ("add_r2", 3),
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0xe3: ("add_r3", 3),
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0xe4: ("illegal_e4", 1),
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0xe5: ("illegal_e5", 1),
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0xe6: ("illegal_e6", 1),
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0xe7: ("illegal_e7", 1),
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0xe8: ("illegal_e8", 1),
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0xe9: ("illegal_e9", 1),
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0xea: ("illegal_ea", 1),
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0xeb: ("illegal_eb", 1),
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0xec: ("illegal_ec", 1),
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0xed: ("illegal_ed", 1),
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0xee: ("illegal_ee", 1),
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0xef: ("illegal_ef", 1),
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0xf0: ("illegal_f0", 1),
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0xf1: ("illegal_f1", 1),
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0xf2: ("illegal_f2", 1),
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0xf3: ("illegal_f3", 1),
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0xf4: ("illegal_f4", 1),
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0xf5: ("illegal_f5", 1),
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0xf6: ("illegal_f6", 1),
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0xf7: ("illegal_f7", 1),
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0xf8: ("illegal_f8", 1),
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0xf9: ("illegal_f9", 1),
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0xfa: ("illegal_fa", 1),
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0xfb: ("illegal_fb", 1),
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0xfc: ("illegal_fc", 1),
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0xfd: ("illegal_fd", 1),
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0xfe: ("illegal_fe", 1),
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0xff: ("illegal_ff", 1),
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}
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stop_instr = [
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"ret",
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"jp"
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]
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f = open(file, "rb")
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f.seek(addr)
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while True:
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o = f.tell() + base
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b = f.read(1)[0]
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if b not in instrs:
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print("Unhandled: %02x" % b)
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break
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i = instrs[b]
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a = 0
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for x in range(i[1]-1):
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a |= f.read(1)[0] << (8 * x)
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if i[1] != 1:
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print("%s 0x%04x # 0x%04x" % (i[0], a, o))
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else:
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print("%s # 0x%04x" % (i[0], o))
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if i[0] in stop_instr:
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break
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