26-09-2021, 04:18 PM
(This post was last modified: 28-09-2021, 11:19 PM by Ernest.
Edit Reason: Correct the alphabetical IC labelling
)
Hi Chesh,
Try swapping over the H & G ROMs position is not important for these two they will just show up in different locations on the MENU.
If the problem swaps with the ROM then the problem is with the ROM if the problems stays with the ROM location then you have a decoding issue to that ROM slot.
When you say "No Menu on bootup and I can't seem to "PAK" to the menu either." Is this still the case after fixing the bad ROM I?
If any of the ROM addressing or images are a problem it can prevent the system booting to the SHELL as part of the boot up is to verify all the ROMs that are present
The boot up "MENU" as you call it is called the "Shell" this can be arrived at from BASIC with the PAK5 call. The MENU ROM PAK10 can't be called normally and a PAK10 will give "option not fitted" response.
If a ROM is not showing up in the Shell it may still be available and working but accessible by hitting RETURN at the Shell which will list the directory from here you can navigate to all available programs.
I suggest that you pick a location that is working fine (Like ROM E) and use this location to test any new double bank ROMs you set up.
Additionally you can use a known working double bank ROM in each of the H & G locations. Locations F & I this technique will not work as they have the SHELL & MENU in them.
I really don't know why they didn't put these two as banks in the same ROM.
Ernest
Try swapping over the H & G ROMs position is not important for these two they will just show up in different locations on the MENU.
If the problem swaps with the ROM then the problem is with the ROM if the problems stays with the ROM location then you have a decoding issue to that ROM slot.
When you say "No Menu on bootup and I can't seem to "PAK" to the menu either." Is this still the case after fixing the bad ROM I?
If any of the ROM addressing or images are a problem it can prevent the system booting to the SHELL as part of the boot up is to verify all the ROMs that are present
The boot up "MENU" as you call it is called the "Shell" this can be arrived at from BASIC with the PAK5 call. The MENU ROM PAK10 can't be called normally and a PAK10 will give "option not fitted" response.
If a ROM is not showing up in the Shell it may still be available and working but accessible by hitting RETURN at the Shell which will list the directory from here you can navigate to all available programs.
I suggest that you pick a location that is working fine (Like ROM E) and use this location to test any new double bank ROMs you set up.
Additionally you can use a known working double bank ROM in each of the H & G locations. Locations F & I this technique will not work as they have the SHELL & MENU in them.
I really don't know why they didn't put these two as banks in the same ROM.
Ernest