Skip to content

Latest commit

 

History

History
19 lines (10 loc) · 792 Bytes

README.md

File metadata and controls

19 lines (10 loc) · 792 Bytes

Holtek HT1130 support for IDA 7.x

Place the ht1130.py in the procs directory. If you don't see "Holtek HT1130 (ht1130)" in the CPU selection, then check if Python support is working in IDA.

  • This instruction set is heavily inspired by Intel's 4/8-bit instruction sets.

  • The biggest problem is finding a ROM for this module. Because you can only get a ROM by photographing a chip's crystal under a microscope. The only known dump is here.

Other 4-bit microcontrollers from Holtek

HT44300/HT443A0: same opcodes as HT1130.

HTG12G0, HTG1390, HTG13J0: doesn't have opcode 0x32 (was IN A, PM).

HTG12N0: opcode 0x34 is read as OUT PC, A (was IN A, PP).

HTG12B0 is different for ~10 opcodes.