robin@medstar.UUCP (Robin Cutshaw) (08/02/85)
The previous patch allowed up to a 32 Mb write address. This multiplies
by 64K that previous limitation...
Patch for 1 Meg ulimit follows...
#adb -w /xenix
*$x
*main+0x39?i /* mov _u+0x5b4,0800H */
*main+0x3d?x /* 800 */
*.?w XXXX /* 800 = XXXX */
*main+0x3f?i /* mov _u+0x5b6,0H */
*main+0x43?x /* 0 */
*.?w YYYY /* 0 = YYYY */
*$q
Replace XXXX with the maximum number of 512 byte blocks that may be
written by any user process. 800 = CDLIMIT from <sys/param.h> which
is defined as (1L<<11), which is 1 Meg. Other sample sizes are :
1000 (2 Mb)
2000 (4 Mb)
4000 (8 Mb)
8000 (16 Mb)
ffff (32 Mb -1 block)
Replace YYYY with the maximum number of (512*64K) byte blocks...
0001 (32 Mb)
0010 (512 Mb) etc.
NOTE : YYYYXXXX = (daddr_t )u.u_limit
There is no magic size that will suffice in all cases, just what you
wish to live with.
-robin
--
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Robin Cutshaw
uucp: ...!{akgua,gatech}!medstar!robin