System information

0113 STA 0121
0116 JMP 0000
0119 STAX B A little more machine
011A NOP code. Note that pro-
011B INR B ram ends at location
011C INX B 116 with a JMP to
011D DCR B 0000. Remainder of
011E MVI B, 01 listing is assembly of
0120 DCR B data.
0121 LXI D,2200
0124 LXI H,0200
-A116 Enter in-line assembly mode to change the JMP to 0000 into a RST7,
which will cause the program under test to return to DDT if 116H is
ever executed.
0116 RST 7
0117 (Single carriage return stops assemble mode)
-L113 List code at 113H to check that RST 7 was properly inserted.
0113 STA 0121
0116 REST 07 in place of JMP
0117 NOP
0118 NOP
0119 STAX B
011A NOP
011B INR B
011C INX B
-
-X Look at registers
COZOMOEOIO A=00 B=0000 D=0000 H=0000 S=0100 P=0100 MVI B,08
-T
Execute Preogram for one stop. Initial CPU state, before is executed
COZOMOEOIO A=00 B=0000 D=0000 H=0000 S=0100 P=0100 MVI B, 08*0102
Automatic breakpoint/
4.4 A Sample Program CP/M Operating System Manual
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