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-rw-r--r--decoders/z80/pd.py14
1 files changed, 7 insertions, 7 deletions
diff --git a/decoders/z80/pd.py b/decoders/z80/pd.py
index 8fadff5..4663f95 100644
--- a/decoders/z80/pd.py
+++ b/decoders/z80/pd.py
@@ -291,9 +291,9 @@ class Decoder(srd.Decoder):
if self.want_imm > 0:
return OpState.IMM1
self.ann_dasm = Ann.INSTR
- if self.want_read > 0:
+ if self.want_read > 0 and self.prev_cycle in (Cycle.MEMRD, Cycle.IORD):
return OpState.ROP1
- if self.want_write > 0:
+ if self.want_write > 0 and self.prev_cycle in (Cycle.MEMWR, Cycle.IOWR):
return OpState.WOP1
return OpState.RESTART
@@ -302,18 +302,18 @@ class Decoder(srd.Decoder):
if self.want_imm > 1:
return OpState.IMM2
self.ann_dasm = Ann.INSTR
- if self.want_read > 0:
+ if self.want_read > 0 and self.prev_cycle in (Cycle.MEMRD, Cycle.IORD):
return OpState.ROP1
- if self.want_write > 0:
+ if self.want_write > 0 and self.prev_cycle in (Cycle.MEMWR, Cycle.IOWR):
return OpState.WOP1
return OpState.RESTART
def on_state_IMM2(self):
self.arg_imm |= self.pend_data << 8
self.ann_dasm = Ann.INSTR
- if self.want_read > 0:
+ if self.want_read > 0 and self.prev_cycle in (Cycle.MEMRD, Cycle.IORD):
return OpState.ROP1
- if self.want_write > 0:
+ if self.want_write > 0 and self.prev_cycle in (Cycle.MEMWR, Cycle.IOWR):
return OpState.WOP1
return OpState.RESTART
@@ -334,7 +334,7 @@ class Decoder(srd.Decoder):
self.arg_read |= self.pend_data << 8
self.mnemonic = '{ro:04X}'
self.ann_dasm = Ann.ROP
- if self.want_write > 0:
+ if self.want_write > 0 and self.prev_cycle in (Cycle.MEMWR, Cycle.IOWR):
return OpState.WOP1
return OpState.RESTART