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Byte to word.
Converts a CM DB-relative byte address to a CM DB-relative word address. Syntax | |
btow (byteaddress [splitstack])
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Formal Declaration | |
btow:I16 (byteaddress:I16 [splitstack:bool=FALSE])
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Parameters | |
- byteaddress
The CM DB-relative byte address which is to be
converted into a CM DB-relative word address.
- splitstack
If splitstack is FALSE, then byteaddress is assumed to be within the current process's CM stack. The byte address is logically shifted right by one bit. If the result is greater than the current S location, then %100000 is added. This effectively turns on the sign bit. By default, splitstack is FALSE. If splitstack is TRUE, then byteaddress is assumed to be a data
segment (DST) relative offset.
The byte address is logically shifted right by one bit. No special
test for the current location of S is performed.
Examples | |
%cmdebug > dr
DBDST=%204 DB=%1000 X=%0 STATUS=%100030=(Mitroc CCG 030) PIN=%40
SDST=%204 DL=%177650 Q=%726 S=%41767 CMPC=SYS %27.253
CIR=%041601 MAPFLAG=%1 MAPDST=%0
%cmdebug > wl btow (100002)
%40001
%cmdebug > wl btow (177776)
%177777
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These examples assume the current CM registers which are displayed above.
Note the large stack usage above DB.
%cmdebug > dr
DBDST=%204 DB=%70000 X=%0 STATUS=%100030=(Mitroc CCG 030) PIN=%40
SDST=%204 DL=%110650 Q=%726 S=%1204 CMPC=SYS %27.253
CIR=%041601 MAPFLAG=%1 MAPDST=%0
%cmdebug > wl btow (177776)
%177777
%cmdebug > wl btow (100002)
%140001
%cmdebug > wl btow (40002)
%120001
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These examples assume the current CM registers displayed above. Note the
huge DL area. Limitations, Restrictions | |
none |
