Can the guru meditators of these forums please share their intimate knowledge about the Amiga P.O.S.T.
More specifically, I'm following this sequence (
http://www.amicue.org/TechStuff/amigaboot.html):
1. Clear all chips of old data
2. Disable DMA and interrupts during the test.
3. Clear the screen.
4. Check the hardware ....checks to see if 68000 is functioning.
5. Change screen color.
6. Do a checksum test on all ROMS.
7. Change screen color.
8. Beginning of system startup.
9. Check RAM at $C0000,and move SYSBASE there
10. Test All CHIP RAM.
11. Change screen color.
12. Check that software is coming in ok.
13. Change screen color.
14. Setup CHIP RAM to receive data.
15. Link the libraries
16. Check for additional memory and link it
17. Turn the DMA and interrupts back on.
18. Start a default task.
19. Check for 68010,68020, and or 68881.
20. Check to see if thee is an exception ...processor error
21. If so do a system reset.
But there are many questions:
A) Which part of the Amiga does the clearing/changing color of screen?
B) Which part of the Amiga does steps 1-4 (inclusive)? Because if it's checking the 68k CPU at step 4, is it some of the special circuitry inside the custom chips that does the checking, or is it a Kickstart routine that gets executed by the (unchecked before step 4) 68k CPU?
C) Which part of the Amiga does step 6?
D) What exactly does step 8 accomplish?
E) Which part of the Amiga does step 9?
F) Which part of the Amiga does step 10?
G) Is step 11 where the GREEN color gets set (depending on the results of step 10?) ?
H) What exactly does step 12 accomplish?
I) What exactly does step 14 accomplish?
Any other hints, insights, or in-depth explanations are highly welcomed
Also any other sources: which books might delve into this subject, or any other publications? (I wish this book existed in English:
http://www.vesalia.de/e_gurubuch.htm)
The reason I'm asking all this is to get a better understanding of what is causing my dead A3000 (
http://www.amiga.org/forums/showthread.php?t=21940 and
http://www.amiga.org/forums/showthread.php?t=26702) to green screen and then reset within a second or so. It might help guide me better towards finding out what part of the system has been affected by the battery leak :/
Thanks in advance