Oki Dr.63514, User Manual, Page: 37 / 101

Chapter 2. Functions
2-16
2.3.2.2 Breaks on Specific Conditions
These breaks are the result of specific conditions involving flag bits and counters.
(1) Breakpoint break
For each code memory address, the emulator provides a breakpoint bit for enabling these breaks.
Setting a breakpoint at a code memory address sets the corresponding breakpoint bit to “1.”
0000H
0001H
0002H
0003H
0004H
0FFFDH
0FFFEH
0FFFFH
Code memory
Breakpoint
bit memory
Address specified by program
counter (PC).
Breakpoint break request
If these breaks are enabled, execution of the instruction at that address produces a break request of this
type.
n
Note 1
n
________________________________________________________________________________________________________________
There are no limits on the number of breakpoints or their locations in the code memory space.
Breakpoint settings at the following addresses, however, never produce breaks.
(a) ROM table locations
Breakpoint break specification
Code memory
0
0
0
1
0
Breakpoint
bit memory
The breakpoint bit for address
323H is never accessed.
NOP
MOVLB [HL],323H
Table data
100H
101H
323H