Catalogue of Arcade Emulation Software - the Absolute Reference

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Tiger Heli (US)

0.34b4 [Nicola Salmoria]


- The MCU protection in Tiger Heli is very simple. It compares for a value to return a specific number, otherwise it will give the BAD HW message(stored at locations $10AB-$10B5). The program itself says what kind of value is needed (usually,but not always 0x83).This is simulated by reading what value the main program asks,then adjusting it to the value really needed (as it was managed by a real MCU). The bootlegs patches this with different ways: The first one patches the final 'ret z' opcode check with a 'ret' at 10AAh. The second one patches the e803 checks with a 'ret' at location 109Dh.

DIP/Input Bugs:

- Clone tigerhb1: When the "Bonus Life" Dip Switch is set to "20000 80000" (which is what you can read in the "test mode"), you in fact CAN'T get ANY extra life (even when collecting 10 "diamonds"!) due to code at 0x1082 (see text file). tigerhb1061gra stephh


- 12th September 2005: Guru - Tiger Heli with a 68705 MCU arrived. Thanks to Tingoes.

- 22nd January 2004: Aaron Giles fixed problems in Red Baron, Asylum and Tiger Heli, caused by the memory system changes.

- 0.74u2: Added M68705 (2MHz) CPU3 and mcu rom.

- 3rd October 2003: Tomasz Slanina added correct MCU emulation and MCU ROM to Tiger Heli.

- 11th August 2003: Guru - Dumped successfully the MCU from Tiger with the Data IO Unisite Programmer.

- 25th July 2003: Angelo Salese fixed a MCU bug in Tiger Heli that caused wrong background positioning.

- 0.69: Angelo Salese fixed MCU reset for Tiger Heli.

- 1st May 2003: Angelo Salese simulated the MCU protection in the Tiger Heli driver, making the original ROM sets fully working.

- 17th September 2000: Bryan McPhail fixed sprite lag in Tiger Heli.

- 0.36RC2: Added clone Tiger Heli (Japan).

- 0.34b7: Juan Carlos Lorente added hiscore save in Tiger Heli.

- 0.34b4: Nicola Salmoria added Tiger Heli (set 1) (Taito 1985) and clones (set 2), (bootleg 1) and (bootleg 2). The original versions don't work, use the bootlegs.

LEVELS: 5 (endless)

Other Emulators:

* Shark

Category: Helicopter

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Romset: 204 kb / 19 files / 91.4 zip