Returns the length of the CM procedure which contains
the specified CM logical code address.
Syntax |
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The procedure length (from procedure start to procedure end)
is returned in CM (16-bit) words.
Formal Declaration |
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cmproclen:u16 (cmlogaddr:lcptr)
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Parameters |
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- cmlogaddr
The CM logical code address of a procedure whose length is desired.
Cmlogaddr must be a full CM logical code address (LCPTR). For example:
- CMPC
Current CM program counter
- CMPW+4
Top of CM program window + 4
- PROG(2.102)
Program file logical seg 2 offset 102
- fopen+102
CM procedure fopen + %102 (assumes CM mode)
- cmaddr('fopen')+%102
CM procedure fopen + %102 (NM or CM mode)
Examples |
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%cmdebug > wl cmproclen(cmpc)
%843
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Print the length of the current CM procedure located at the CM program counter
CMPC.
%cmdebug > wl cmproclen(fopen)
%1642
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Print the length of the CM procedure fopen.
Assume that the following single segment CM program has been compiled,
linked with the PMAP and FPMAP options,
and is now being executed:
PROGRAM test (input,output);
PROCEDURE one;
begin {one}
writeln('ONE');
end; {one}
PROCEDURE two;
PROCEDURE three;
begin {three}
writeln('THREE');
end; {three}
begin {two}
writeln('TWO');
three;
end; {two}
begin {main body} { Outer block is named "ob'" by the compiler }
one;
two;
end. {main body}
PROGRAM FILE PTEST.DEMO.TELESUP
SEG' 0
NAME STT CODE ENTRY SEG
OB' 1 0 13
TERMINATE' 5 ?
P'RESET 6 ?
P'REWRITE 7 ?
P'CLOSEIO 10 ?
P'INITHEAP'3000 11 ?
TWO 2 71 123
P'WRITELN 12 ?
P'WRITESTR 13 ?
ONE 3 142 155
SEGMENT LENGTH 210
PRIMARY DB 2 INITIAL STACK 10240 CAPABILITY 600
SECONDARY DB 430 INITIAL DL 0 TOTAL CODE 210
TOTAL DB 432 MAXIMUM DATA ? TOTAL RECORDS 11
ELAPSED TIME 00:00:01.365 PROCESSOR TIME 00:00.740
END OF PREPARE
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%cmdebug > wl cmstart(ob')
PROG %0.0
%cmdebug > wl cmstart(two)
PROG %0.71
%cmdebug > wl cmstart(one)
PROG %0.142
%cmdebug > wl cmproclen(ob')
%71
%cmdebug > wl cmstart(two) - cmstart(ob')
%71
%cmdebug > wl cmproclen(two)
%51
%cmdebug > wl cmstart(one)-cmstart(two)
%51
%cmdebug > wl cmproclen(one)
%30
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Limitations, Restrictions |
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The names and addresses of nested CM procedures,
such as procedure three, are not available within the CM FPMAP
records. Addresses that fall within nested procedures (three)
are returned as offsets relative to the parent procedure (two).
