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amiga-bootcamp/05_reversing/scripts/ida9_amiga_ecs.py

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import ida_name
import ida_segment
import ida_bytes
def create_segment(name, start_ea, size, sclass="DATA"):
end_ea = start_ea + size
if not ida_segment.getseg(start_ea):
ida_segment.add_segm(0, start_ea, end_ea, name, sclass)
print(f"Created segment {name} at 0x{start_ea:X}")
else:
print(f"Segment already exists at 0x{start_ea:X}")
def define_registers():
custom_base = 0xDFF000
ciaa_base = 0xBFE000
ciab_base = 0xBFD000
create_segment("HW_CUSTOM", 0xDFF000, 0x200, "HW")
create_segment("HW_CIAA", 0xBFE000, 0x1000, "HW")
create_segment("HW_CIAB", 0xBFD000, 0x1000, "HW")
# Enhanced Chip Set (ECS) Register Map (Includes OCS)
custom_registers = {
0x000: "BLTDDAT", 0x002: "DMACONR", 0x004: "VPOSR", 0x006: "VHPOSR",
0x008: "DSKDATR", 0x00A: "JOY0DAT", 0x00C: "JOY1DAT", 0x00E: "CLXDAT",
0x010: "ADKCONR", 0x012: "POT0DAT", 0x014: "POT1DAT", 0x016: "POTGOR",
0x018: "SERDATR", 0x01A: "DSKBYTR", 0x01C: "INTENAR", 0x01E: "INTREQR",
0x020: "DSKPTH", 0x022: "DSKPTL", 0x024: "DSKLEN", 0x026: "DSKDAT",
0x028: "REFPTR", 0x02A: "VPOSW", 0x02C: "VHPOSW", 0x02E: "COPCON",
0x030: "SERDAT", 0x032: "SERPER", 0x034: "POTGO", 0x036: "JOYTEST",
0x038: "STREQU", 0x03A: "STRVBL", 0x03C: "STRHOR", 0x03E: "STRLONG", # ECS
0x040: "BLTCON0", 0x042: "BLTCON1", 0x044: "BLTAFWM", 0x046: "BLTALWM",
0x048: "BLTCPTH", 0x04A: "BLTCPTL", 0x04C: "BLTBPTH", 0x04E: "BLTBPTL",
0x050: "BLTAPTH", 0x052: "BLTAPTL", 0x054: "BLTDPTH", 0x056: "BLTDPTL",
0x058: "BLTSIZE",
0x05A: "BLTCON0L", 0x05C: "BLTSIZV", 0x05E: "BLTSIZH", # ECS
0x060: "BLTCMOD", 0x062: "BLTBMOD", 0x064: "BLTAMOD", 0x066: "BLTDMOD",
0x070: "BLTCDAT", 0x072: "BLTBDAT", 0x074: "BLTADAT",
0x078: "SPRHDAT", # ECS
0x07C: "DENISEID", # ECS
0x07E: "DSKSYNC",
0x080: "COP1LCH", 0x082: "COP1LCL", 0x084: "COP2LCH", 0x086: "COP2LCL",
0x088: "COPJMP1", 0x08A: "COPJMP2", 0x08C: "COPINS",
0x08E: "DIWSTRT", 0x090: "DIWSTOP", 0x092: "DDFSTRT", 0x094: "DDFSTOP",
0x096: "DMACON", 0x098: "CLXCON", 0x09A: "INTENA", 0x09C: "INTREQ",
0x09E: "ADKCON",
# AUDIO
0x0A0: "AUD0LTH", 0x0A2: "AUD0LTL", 0x0A4: "AUD0LEN", 0x0A6: "AUD0PER", 0x0A8: "AUD0VOL", 0x0AA: "AUD0DAT",
0x0B0: "AUD1LTH", 0x0B2: "AUD1LTL", 0x0B4: "AUD1LEN", 0x0B6: "AUD1PER", 0x0B8: "AUD1VOL", 0x0BA: "AUD1DAT",
0x0C0: "AUD2LTH", 0x0C2: "AUD2LTL", 0x0C4: "AUD2LEN", 0x0C6: "AUD2PER", 0x0C8: "AUD2VOL", 0x0CA: "AUD2DAT",
0x0D0: "AUD3LTH", 0x0D2: "AUD3LTL", 0x0D4: "AUD3LEN", 0x0D6: "AUD3PER", 0x0D8: "AUD3VOL", 0x0DA: "AUD3DAT",
# BITPLANES
0x0E0: "BPL1PTH", 0x0E2: "BPL1PTL", 0x0E4: "BPL2PTH", 0x0E6: "BPL2PTL",
0x0E8: "BPL3PTH", 0x0EA: "BPL3PTL", 0x0EC: "BPL4PTH", 0x0EE: "BPL4PTL",
0x0F0: "BPL5PTH", 0x0F2: "BPL5PTL", 0x0F4: "BPL6PTH", 0x0F6: "BPL6PTL",
0x0F8: "BPL7PTH", 0x0FA: "BPL7PTL", 0x0FC: "BPL8PTH", 0x0FE: "BPL8PTL",
0x100: "BPLCON0", 0x102: "BPLCON1", 0x104: "BPLCON2",
0x108: "BPL1MOD", 0x10A: "BPL2MOD",
0x110: "BPL1DAT", 0x112: "BPL2DAT", 0x114: "BPL3DAT", 0x116: "BPL4DAT",
0x118: "BPL5DAT", 0x11A: "BPL6DAT", 0x11C: "BPL7DAT", 0x11E: "BPL8DAT",
# SPRITES
0x120: "SPR0PTH", 0x122: "SPR0PTL", 0x124: "SPR1PTH", 0x126: "SPR1PTL",
0x128: "SPR2PTH", 0x12A: "SPR2PTL", 0x12C: "SPR3PTH", 0x12E: "SPR3PTL",
0x130: "SPR4PTH", 0x132: "SPR4PTL", 0x134: "SPR5PTH", 0x136: "SPR5PTL",
0x138: "SPR6PTH", 0x13A: "SPR6PTL", 0x13C: "SPR7PTH", 0x13E: "SPR7PTL",
# SPRITE DATA
0x140: "SPR0POS", 0x142: "SPR0CTL", 0x144: "SPR0DATA", 0x146: "SPR0DATB",
0x148: "SPR1POS", 0x14A: "SPR1CTL", 0x14C: "SPR1DATA", 0x14E: "SPR1DATB",
0x150: "SPR2POS", 0x152: "SPR2CTL", 0x154: "SPR2DATA", 0x156: "SPR2DATB",
0x158: "SPR3POS", 0x15A: "SPR3CTL", 0x15C: "SPR3DATA", 0x15E: "SPR3DATB",
0x160: "SPR4POS", 0x162: "SPR4CTL", 0x164: "SPR4DATA", 0x166: "SPR4DATB",
0x168: "SPR5POS", 0x16A: "SPR5CTL", 0x16C: "SPR5DATA", 0x16E: "SPR5DATB",
0x170: "SPR6POS", 0x172: "SPR6CTL", 0x174: "SPR6DATA", 0x176: "SPR6DATB",
0x178: "SPR7POS", 0x17A: "SPR7CTL", 0x17C: "SPR7DATA", 0x17E: "SPR7DATB",
# COLOR PALETTE
0x180: "COLOR00", 0x182: "COLOR01", 0x184: "COLOR02", 0x186: "COLOR03",
0x188: "COLOR04", 0x18A: "COLOR05", 0x18C: "COLOR06", 0x18E: "COLOR07",
0x190: "COLOR08", 0x192: "COLOR09", 0x194: "COLOR10", 0x196: "COLOR11",
0x198: "COLOR12", 0x19A: "COLOR13", 0x19C: "COLOR14", 0x19E: "COLOR15",
0x1A0: "COLOR16", 0x1A2: "COLOR17", 0x1A4: "COLOR18", 0x1A6: "COLOR19",
0x1A8: "COLOR20", 0x1AA: "COLOR21", 0x1AC: "COLOR22", 0x1AE: "COLOR23",
0x1B0: "COLOR24", 0x1B2: "COLOR25", 0x1B4: "COLOR26", 0x1B6: "COLOR27",
0x1B8: "COLOR28", 0x1BA: "COLOR29", 0x1BC: "COLOR30", 0x1BE: "COLOR31",
# ECS specific
0x1C0: "HTOTAL", 0x1C2: "HSSTOP", 0x1C4: "HBSTRT", 0x1C6: "HBSTOP",
0x1C8: "VTOTAL", 0x1CA: "VSSTOP", 0x1CC: "VBSTRT", 0x1CE: "VBSTOP",
0x1DC: "BEAMCON0",0x1DE: "HSSTRT", 0x1E0: "VSSTRT", 0x1E4: "DIWHIGH",
}
ciaa_registers = {
0x001: "CIAA_PRA", 0x101: "CIAA_PRB", 0x201: "CIAA_DDRA", 0x301: "CIAA_DDRB",
0x401: "CIAA_TALO", 0x501: "CIAA_TAHI", 0x601: "CIAA_TBLO", 0x701: "CIAA_TBHI",
0x801: "CIAA_TODLO",0x901: "CIAA_TODMID",0xA01: "CIAA_TODHI",0xB01: "CIAA_SDR",
0xC01: "CIAA_ICR", 0xD01: "CIAA_CRA", 0xE01: "CIAA_CRB"
}
ciab_registers = {
0x000: "CIAB_PRA", 0x100: "CIAB_PRB", 0x200: "CIAB_DDRA", 0x300: "CIAB_DDRB",
0x400: "CIAB_TALO", 0x500: "CIAB_TAHI", 0x600: "CIAB_TBLO", 0x700: "CIAB_TBHI",
0x800: "CIAB_TODLO",0x900: "CIAB_TODMID",0xA00: "CIAB_TODHI",0xB00: "CIAB_SDR",
0xC00: "CIAB_ICR", 0xD00: "CIAB_CRA", 0xE00: "CIAB_CRB"
}
count = 0
# Custom Chips are 16-bit words mapped at DFFxxx
for offset, name in custom_registers.items():
addr = custom_base + offset
ida_bytes.create_word(addr, 2)
if ida_name.set_name(addr, name, ida_name.SN_CHECK):
count += 1
# CIAA registers are mapped to odd bytes
for offset, name in ciaa_registers.items():
addr = ciaa_base + offset
ida_bytes.create_byte(addr, 1)
if ida_name.set_name(addr, name, ida_name.SN_CHECK):
count += 1
# CIAB registers are mapped to even bytes
for offset, name in ciab_registers.items():
addr = ciab_base + offset
ida_bytes.create_byte(addr, 1)
if ida_name.set_name(addr, name, ida_name.SN_CHECK):
count += 1
print(f"Amiga ECS Script: Successfully mapped {count} hardware registers.")
if __name__ == "__main__":
define_registers()
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