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feat: improve output when CPU halts

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This commit is contained in:
shokre 2021-11-25 02:41:18 +01:00
parent f6dd24732e
commit 4e71d8ee21
1 changed files with 5 additions and 4 deletions
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9
orao/cpu.py
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@ -298,19 +298,20 @@ class CPU(object):
return "%04X %s %s" % (addr, instruction.__name__.lower(), self.addr_fmt[addressing](addr+1)), addr + self.ticks[addressing] + 1
def step(self):
self.executed.append(self.pc)
opcode = self.memory[self.pc]
self.pc = self.pc + 1 & 0xFFFF
if opcode not in self._opcodes:
print('HALT')
for addr in self.executed:
code, _ = self.disasm(addr)
print(" - %s" % code)
print(" > %04x %02x %02x" % (self.pc, self.memory[self.pc], self.memory[self.pc+1]))
self.executed.append(self.pc)
self.pc = self.pc + 1 & 0xFFFF
instruction, addressing, cycles = self._opcodes[opcode]
instruction(addressing())
self.pc += self.ticks[addressing]
if len(self.executed) > 20:
self.executed = self.executed[1:]