Files

Dr. Christian Giessen 4e49d0d0e6 Fix reg1/reg2 tables: CNTR is REG2[14], STACKA is REG1[15]

Register tables were wrong per the official core register table
(docs/opcode_mnemonics.txt Table 9-5):
- reg1[15]: was CNTR, should be STACKA
- reg2[12]: was STACKA, should be RES (reserved)
- reg2[13]: was LPCSTACKA, should be RES (reserved)
- reg2[14]: was RES, should be CNTR
- reg2[15]: was RES, should be LPSTACKA

This fixes CNTR loads showing as 'RES = ...' in disassembly.
Verified: isa_test.bin now shows CNTR = 0x000A,
iir.bin shows CNTR = 0x0100 and CNTR = 0x0002.

2026-04-22 20:36:54 +00:00

asm_adsp219x.c

Fix reg1/reg2 tables: CNTR is REG2[14], STACKA is REG1[15]

2026-04-22 20:36:54 +00:00

asm_adsp219x.so

Fix reg1/reg2 tables: CNTR is REG2[14], STACKA is REG1[15]

2026-04-22 20:36:54 +00:00

Makefile

Fix r2 arch plugin for radare2 >= 5.8 RArchPlugin API

2026-04-12 14:45:23 +00:00

README.md

Update all docs and test generator to match verified assembler opcodes

2026-04-22 18:46:54 +00:00

TESTING.md

Fix Type 12 SF field and sync TESTING.md

2026-04-22 20:19:41 +00:00

README.md

ADSP-219x Radare2 Plugin

Native architecture plugin for disassembling ADSP-219x (including ADSP-2191) 24-bit instructions in radare2 and iaito.

Build & Install

make
make install

Requires: GCC, radare2 >= 5.8.0 (RArchPlugin API).

Usage

r2 -a adsp219x -b 24 firmware.bin

Validation

Compare against the assembler-verified test ROM:

r2 -a adsp219x -b 24 -q -c "pd 48" ../examples/isa_test.bin

The test ROM (isa_test.dsp) was assembled with open21xx and contains known opcodes for all major instruction types.

Coding Standards

This plugin follows the GNU Coding Standards for C source code. No hardcoded absolute paths in any scripts.