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Diffstat (limited to 'src/devices/cpu/upd7810/upd7810.cpp')
-rw-r--r--src/devices/cpu/upd7810/upd7810.cpp6
1 files changed, 5 insertions, 1 deletions
diff --git a/src/devices/cpu/upd7810/upd7810.cpp b/src/devices/cpu/upd7810/upd7810.cpp
index c2e5c3952a8..54bc5e3757e 100644
--- a/src/devices/cpu/upd7810/upd7810.cpp
+++ b/src/devices/cpu/upd7810/upd7810.cpp
@@ -8,6 +8,10 @@
* This work is based on the
* "NEC Electronics User's Manual, April 1987"
*
+ * NEC called this MCU family "μCOM-87" or "87AD" (7810 and up). It is
+ * not to be confused with the later and incompatible 78K family, though
+ * its architectural influence is acknowledged.
+ *
* NS20030115:
* - fixed INRW_wa()
* - TODO: add 7807, differences are listed below.
@@ -1903,9 +1907,9 @@ void upd7810_device::execute_run()
{
int cc;
+ PPC = PC;
debugger_instruction_hook(PC);
- PPC = PC;
RDOP(OP);
/*