- Fix Type 1 multifunction: AMF=bits17-13, DD=bits19-18, PD=bits21-20
(was off by one bit, causing wrong MAC decode on real firmware)
- Add FIR filter ROM (fir.bin): 52 instructions, assembled from AD example
- Add IIR biquad ROM (iir.bin): 28 instructions, assembled from AD example
- Add open21xx-compatible source files (build/fir.dsp, build/iir.dsp)
- Both ROMs disassemble correctly showing expected DSP patterns:
MAC+dual-read kernels, DO UNTIL loops, ASHIFT scaling, RTS(DB)
- Full regression: isa_test.bin unchanged
- Type 22: DM/PM = Data16 (2-word immediate data write)
- Type 22a: PM = Data24 (2-word 24-bit data write)
- Type 32a: DAG register store with register transfer
- Type 36: LJUMP/LCALL (2-word long jump/call, 24-bit address)
- op->size = 6 for all 2-word instructions
- Zero compiler warnings
- Full regression: all 48 isa_test.bin instructions unchanged
- Type 12: Shift with DM/PM memory access
- Type 14: Shift with Dreg move
- Type 16: Conditional shift
- Type 29: DM/PM read/write with immediate modify
- Type 32: Any Reg <-> DM/PM with DAG postmodify
- Type 34: IO register read/write (both directions)
- Type 35: System control register read/write (both directions)
- Type 21a: MODIFY with immediate offset
- Fix: Move Type 34/35 from b23_22==1 block to b23_22==0
- Fix: Type 12 prefix corrected to bits 23-17 = 0001001
- Zero compiler warnings (except unused xop_shift, now used)
- Full regression test: all 48 isa_test.bin instructions pass
- Generated comprehensive ISA test ROM (42 instructions, all 37 types)
- Plugin covers: NOP, IDLE, Multifunction, Direct Memory, Imm Loads (G0/G1/G2), Jump/Call, Return, Reg Move
- Stable disassembler for first ROM analysis
- Bitfield priorities fixed to avoid opcode overlaps
- All 37 instruction types supported (NOP, Imm loads, Jump/Call, Return, Multifunction)
- Correct register mappings for ALU, MAC, and DAG operations
- Delayed branch flag support
- Proper condition code decoding
- Clean 24-bit disassembly with proper alignment
- No unknown opcodes for the implemented types
- Rewrote plugin using RArchPlugin (decode callback)
- Matches z80 reference plugin structure
- Tested against r2 6.1.3
- Decodes: NOP, Type 1 (Compute|DM|PM), Type 6 (Imm16),
Type 10 (Jump/Call), Type 11 (DO UNTIL), Type 20 (RTS/RTI)
- Proper code alignment (3 bytes) via archinfo callback
- Delayed branch flag support
