System Debug Reference Manual (32650-90888)

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90 Chapter4

System Debug Command Speciﬁcations :-Exit

B (break)

added: CM |11| SYS % 27.4727 ?FWRITE

NM |1| TRANS 30.00737fb4 SUSER1:?FWRITE

The above example sets a breakpoint at the entry point of the FWRITE intrinsic which is

located in the system library SL.PUB.SYS. Every #100 times the routine is called, stop and

print out a message. The QUIET option is speciﬁed so this operation produces no extra

terminal output. SL.PUB.SYS has been translated with the Object Code Translator (OCT),

and so Debug automatically sets a breakpoint in the translated native mode code. Refer to

appendix C for a discussion of CM object code translation, node points, and breakpoints in

translated CM code.

%cmdebug > bl

CM [1] PROG % 0.1665 ?PROCESSSTUDENT SEG' (CSTX 1)

CM [2] PROG % 0.1670 PROCESSSTUDENT+%263 SEG' (CSTX 1)

CM [3] PROG % 0.1672 PROCESSSTUDENT+%265 SEG' (CSTX 1)

CM [4] PROG % 0.1421 PROCESSSTUDENT+%14 SEG' (CSTX 1)

CM T|5| PROG % 0.40 OB'+%40 SEG' (CSTX 1)

count: 0/3

CM [6] GRP % 0.13 ?AVERAGE SEG' (CST 112)

CM [7] GRP % 0.17 AVERAGE+%17 SEG' (CST 112)

CM [10] GRP % 0.20 AVERAGE+%20 SEG' (CST 112)

CM |11| SYS % 27.4727 ?FWRITE SUSER1 (CST 30)

[QUIET] count: 0/144 cmdlist: {wl "Another #100 records written";c}

Corresponding NM bp = 1

Now list the breakpoints that were set in the above examples.

Translated Code Examples

%cmdebug > bg ?average

added: CM [1] GRP % 0.13 ?AVERAGE

NM [1] TRANS 3d.0016962c SEG':?AVERAGE

Set a breakpoint in the group library at the entry point to the AVERAGE procedure. The

group library and program ﬁle have been translated by the Object Code Translator (OCT).

Debug determined that the code is translated and thus set a CM breakpoint in the

emulated code

and

a NM breakpoint in the translated code. Refer to appendix C for a

discussion of CM object code translation, node points, and breakpoints in translated CM

code.

%cmdebug > b ?processstudent

added: CM [2] PROG % 0.1665 ?PROCESSSTUDENT

NM [2] TRANS 48.0000a610 SEG':?PROCESSSTUDENT

Set a breakpoint at the entry point to the PROCESSSTUDENT procedure. As in the above

example, the code is translated, and so Debug sets two breakpoints.

%cmdebug > b cmpc

added: CM [3] PROG % 0.1672 PROCESSSTUDENT+%265

NM [3] TRANS 48.0000a66c SEG':PROCESSSTUDENT+%265

%cmdebug > b cmpc+1

added: CM [4] PROG % 0.1673 PROCESSSTUDENT+%266

NM [3] TRANS 48.0000a66c SEG':PROCESSSTUDENT+%265