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Digital Research
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Sepp J Morris
2020-11-06 18:50:37 +01:00
parent 621ed8ccaf
commit 31738079c4
8481 changed files with 1888323 additions and 0 deletions
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35
CPM OPERATING SYSTEMS/CPM 68K/1.0X SOURCES/v101/doc/ptch0317.doc Normal file
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Patch to CP/M-68K (tm) C Run-time Library
The initial shipments of CP/M-68K had a problem in writing Ascii
files using the C run-time library. The patch described below
fixes the problem.
A>AR68 X CLIB WRITE.O (extract module WRITE.O from library CLIB)
A>DDT
-RWRITE.O (read file WRITE.O into memory)
start xxxxxxxx end yyyyyyyy
-Hxxxxxxxx,164 (xxxxxxxx is the start in memory of the file)
zzzzzzzz wwwwwwww (zzzzzzzz is the sum of 164H and xxxxxxxx)
-Dzzzzzzzz (display memory at zzzzzzzz)
zzzzzzzz: 67 18 33 FC ... (memory contents)
...
...
-Szzzzzzzz
zzzzzzzz 67 60 (change byte from 67 to 60)
uuuuuuuu 18 . (display next byte -- don't change)
-WWRITE.O (write out changed file)
-^C (Control-C to exit DDT)
A>AR68 RV CLIB WRITE.O (Replace module WRITE.O in library CLIB)
... (Archiver types confirmation messages)
A>ERA WRITE.O
The effect of the above sequence is to replace one byte in the run-time
library. The byte changed is at offset 164H in object module WRITE.O,
from 67H to 60H.