MirrorRepos/RomWBW
1
0
Fork 1
mirror of https://github.com/wwarthen/RomWBW.git synced 2026-02-06 14:11:48 -06:00
Code Issues Projects Releases Wiki Activity

Update Architecture.md

Browse Source 
To reflect changes to syschk routine
This commit is contained in:
b1ackmai1er
2022-11-06 17:44:26 +08:00
parent 6e51070590
commit 5cc85e0444
1 changed files with 19 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

28
Source/Doc/Architecture.md
View File

@@ -2236,6 +2236,7 @@ Possible reasons a PANIC may occur are:
- RAM Bank range error when attempting a read or write to a RAM disk.
- Sector read function has not been setup but a read was attempted.
- An interrupt vector has not been set up when an interrupt was received.
- There was an attempt to add more devices than the device table had room for.
- An illegal SD card command was encountered.
@@ -2244,21 +2245,30 @@ which section of the software or hardware caused the fault.
### SYSCHK
A syschk error is reported when an internal error is detected. The key differance
to the PANIC error is that execution may be continued. In which case an error
code is returned to the calling routine. The error code is not displayed at the console.
A syschk error is identified when an internal error is detected. When this
occurs an error code is returned to the calling program in the A register.
A non-zero result indicates an error.
Syschk errors may be reported to the console. Whether this occurs depends on
the value of the diagnosis level equate CB_DIAGLVL. By default syschk errors
are not reported to the console.
If the diagnosis level is set to display the diagnosis information, then
memory address, register dump and error code is displayed.
A key differance with the PANIC error is that execution may be continued.
Example error message:
\>>> SYSCHK: @06C4[DFA3:DFC3:0100:F103:04FC:0000:2B5E] Continue (Y/N)
\>>> SYSCHK: @06C4[DFA3:DFC3:0100:F103:04FC:0000:2B5E] FD
Continue (Y/N)
The format of the information provided is the same as with the PANIC report.
The format of the information provided is similar the PANIC report.
@XXXX [-AF-:-BC-:-DE-:-HL-:-SP-:-IX-:-IY-]
@XXXX [-AF-:-BC-:-DE-:-HL-:-SP-:-IX-:-IY-] YY
Syschk error codes are returned in the A register.
The syschk error codes YY is returned in the A register.
| Error | Code |
| Error | Code YY |
| ----------------------------------- | -------- |
| Success | 0x00 |
| Undefined Error | 0xFF |
@@ -2305,7 +2315,7 @@ ROMWBW can be configured to display boot progress with the assistance of additio
hardware. This take the form of an LED breakout debugging board connected to an
8-bit output port. As the boot code executes, the LED output display is updated.
To us an LED breakout board, it must be connected the computers data, reset and port
To use a LED breakout board, it must be connected the computers data, reset and port
select lines.
To enable the DIAG option the following settings must be made in the systems .ini