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import new opcode: jumpc, jump, loadc #5

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import new opcode: jumpc, jump, loadc #5

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9429bbc
rcw: add loadc, jumpc and jump to pbi instructions
vjardin Sep 9, 2025
979ca07
rcw: Update dissamble based on documentation
vjardin Sep 9, 2025
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34 changes: 31 additions & 3 deletions rcw.py
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Original file line number Diff line number Diff line change
Expand Up @@ -330,6 +330,34 @@ def build_pbi(lines):
v2 = struct.pack(endianess + 'L', p2)
subsection += v1
subsection += v2
elif op == 'loadc':
if p1 == None or p2 == None:
print('Error: "loadc" instruction requires two parameters')
return ''
v1 = struct.pack(endianess + 'L', 0x80140000)
v2 = struct.pack(endianess + 'L', p1)
v3 = struct.pack(endianess + 'L', p2)
subsection += v1
subsection += v2
subsection += v3
elif op == 'jumpc':
if p1 == None or p2 == None:
print('Error: "jumpc" instruction requires two parameters')
return ''
v1 = struct.pack(endianess + 'L', 0x80850000)
v2 = struct.pack(endianess + 'L', p1)
v3 = struct.pack(endianess + 'L', p2)
subsection += v1
subsection += v2
subsection += v3
elif op == 'jump':
if p1 == None:
print('Error: "jump" instruction requires a parameter')
return ''
v1 = struct.pack(endianess + 'L', 0x80840000)
v2 = struct.pack(endianess + 'L', p1)
subsection += v1
subsection += v2
elif op == 'awrite':
if opsize == '.b5':
# altconfig write with B=5 (16 bytes)
Expand Down Expand Up @@ -932,7 +960,7 @@ def create_source():
i += 4
arg2 = struct.unpack(endianess + 'L', pbi[i:i+4])[0]
i += 4
source += "loadcondition 0x%08x,0x%08x\n" % (arg1, arg2)
source += "loadc 0x%08x,0x%08x\n" % (arg1, arg2)
elif cmd == 0x20:
source += "/* Disassemble not implemented for word 0x%08x */\n" % (word)
elif cmd == 0x22:
Expand All @@ -956,9 +984,9 @@ def create_source():
elif cmd == 0x82:
source += "wait 0x%08x\n" % (word & 0xffff)
elif cmd == 0x84:
source += "/* Disassemble not implemented for word 0x%08x */\n" % (word)
source += "/* Disassemble not implemented for word 0x%08x (jump) */\n" % (word)
elif cmd == 0x85:
source += "/* Disassemble not implemented for word 0x%08x */\n" % (word)
source += "/* Disassemble not implemented for word 0x%08x (jumpc) */\n" % (word)
elif cmd == 0x8f:
arg1 = struct.unpack(endianess + 'L', pbi[i:i+4])[0]
i += 4
Expand Down