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BERM V1.01
===========
This tool allows to switch to DSack/BERR (Bus-Error-mode)
on a A4000. The default for 030 ist DSack, for 040/060 BERR.
It's a kind of minimal "Enforcer", because the A4000-Hardware
can regconize access to illegal memory.
In DSack-Mode all illeal access are simply terminated, delaying for
170µs. In BERR-Mode an "Illegal Exception" will be called,
if there is no Error-Handler your System will hang for ~1 second.
Usage:
BERM [o|c] ;default ist DSACK-Mode
If option "o" is given BERR-Mode is selected
If option "c" is ONLY Bus-Status will be printed. No changes are made.
Example:
1> BERM c
BERM: Bus TIMED OUT ! (DANGER)
This means any programm wrote to a memory-location that does not exist.
============================= Archive contents =============================
Original Packed Ratio Date Time Name
-------- ------- ----- --------- -------- -------------
528 405 23.2% 03-Dec-01 15:09:32 BERM
694 386 44.3% 03-Dec-01 18:15:08 readme.txt
-------- ------- ----- --------- --------
1222 791 35.2% 03-Dec-01 18:19:58 2 files
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Contents of dev/debug/berm.lha PERMSSN UID GID PACKED SIZE RATIO CRC STAMP NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic] 405 528 76.7% -lh5- 41ea Dec 3 2001 berm
[generic] 386 694 55.6% -lh5- 799a Dec 3 2001 readme.txt
---------- ----------- ------- ------- ------ ---------- ------------ -------------
Total 2 files 791 1222 64.7% Dec 6 2001
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Müller and
the Aminet team.
Aminet contact address: <aminet aminet net> |