Search the Community
Showing results for tags 'i/o'.
Found 4 results
OK, I know it's just somewhere and probably just under my nose but, I can't seem to find a listing of the I/O errors in extended basic. I looked in the XB manual, the disk manual and couple other manuals. I'm getting a I/O error 25 in a little database program I am writing and figure out why. Which book has a list of I/O errors? (got the CYC so got most of the manuals). thanks, HLO
I finally went and bought myself a PEB, listed as untested, and complete with RS-232, Disk Controller, and 32K cards. And as seems to be usual with untested systems, it doesn't work. (at least not entirely) I typed in the following program listed in the Disk Memory System manual, in order to test the drive: 100 OPEN #1:"DSK1.X" 110 CLOSE #1 The LED on the controller lit up for a fraction of a second, but the drive itself was lifeless, with me getting an I/O ERROR 00. The manual, however, says that I should normally get an I/O ERROR 06, and that 00 means that the drive could not be found. For what it's worth, the drive spins up when the PEB is first powered on, and the LED on the drive lights up when shutting it off. Where should I start with troubleshooting this? (BTW, I thought that members here were exaggerating about how loud the PEB's fan is; turns out it really is that loud )
Hi there! From the information i'm finding at http://www.vdsteenoven.com/aquarius/keyboard.html and http://www.vdsteenoven.com/aquarius/iomap.html , it looks like the 14bit information from the keymap is all stored in AF 16bit register? i can't get the bits between 8 and 13, and the B register seems to have no value at all I'm really struggling a lot on understanding it... What would look like in a z80 assembly routine snippet, that you can read all keys pressed? from the $FF i only can read the colscan (A is a 8bit register, i think), so when i press "w", the same happens when i press "t", "i", "e", "y", etc. - How can i distinguish between "w", "t", "i", "e" and "y"? Thanks!
finally i'm having one of my SG1000/MSX1 Boriel’s ZX-Basic examples working on ColecoVision The problem is that i don’t know why the joystick (accessed from i/o) is not working as expected (i don’t want to use the bios routines since i think it wastes that precious ram area, and i’m still not comfortable enough with that), and i can’t use halt as waitvbl (i think that there should be some code related to nmi there?) about the joystick, perhaps i should use di and ei before and after accessing the joystick from i/o? or is it something else? the sources (in Boriel’s ZX-Basic, and the intermediary .asm for debuging) and the resulting .rom file is there