aiden/h8-536-decoder
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EMualtor adjustments

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Aiden
2026-05-25 20:42:45 +10:00
parent d2e7609bbf
commit 3ab79648ff
17 changed files with 3047 additions and 83 deletions
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18
h8536/emulator/runner.py
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@@ -278,15 +278,17 @@ class H8536Emulator:
self._set_logic_flags(result, size)
elif op == 0x16:
self._set_logic_flags(self._read_ea(ea, size), size)
elif op == 0x10:
value = self._read_ea(ea, size)
result = ((value & 0xFF) << 8) | ((value >> 8) & 0xFF)
self._write_ea(ea, result, 2)
elif op in (0x10, 0x11, 0x12) and ea["mode"] == "reg" and size == 1:
reg = int(ea["reg"])
value = self.cpu.regs[reg] & 0xFFFF
if op == 0x10:
result = ((value & 0x00FF) << 8) | ((value >> 8) & 0x00FF)
elif op == 0x11:
result = s8(value & 0xFF) & 0xFFFF
else:
result = value & 0x00FF
self.cpu.regs[reg] = result
self._set_logic_flags(result, 2)
elif op == 0x12:
value = self._read_ea(ea, size) & 0xFF
self._write_ea(ea, value, 2 if size == 2 else 1)
self._set_logic_flags(value, size)
elif op == 0x1A:
value = self._read_ea(ea, size)
result = (value << 1) & mask(size)