[ql-users] rom image
Try again (don't know who I sent the first copy to by mistake). I've been offered an article for QL Today if I can answer the following query. Being at work, I haven't got the answer to hand, so if anyone can help, I'd be grateful. I have a rom image on disk which won't load with the usual LRESPR command. How do I install it? I presume this is a copy of an eprom saved to disk from the QL eprom slot with a command like sbytes filename,48*1024,16*1024. From memory, roms have a header and I think a pointer to code execution address or similar, so the command is probably something like: base=respr(48*1024) lbytes filename,base CALL base+peek_l(base+4) or similar. -- Dilwyn Jones ___ QL-Users Mailing List http://www.q-v-d.demon.co.uk/smsqe.htm
Re: [ql-users] rom image
Dilwyn Jones wrote: base=respr(48*1024) lbytes filename,base CALL base+peek_l(base+4) At base+4 is a pointer to SBASIC extensions, but most ROMs do the BASIC initialisation themselves, I think. Therefore CALL base+peek_w(base+6) is really the correct code, but in practice it doesn't make a difference with most ROMs. SMSQ/E users can try using the EPROM_LOAD command, but that only accepts ROMs up to 16kb. Marcel ___ QL-Users Mailing List http://www.q-v-d.demon.co.uk/smsqe.htm
Re: Re: [ql-users] rom image
base=respr(48*1024) lbytes filename,base CALL base+peek_l(base+4) At base+4 is a pointer to SBASIC extensions, but most ROMs do the BASIC initialisation themselves, I think. Therefore CALL base+peek_w(base+6) is really the correct code, but in practice it doesn't make a difference with most ROMs. Thanks. If I understood the query properly, it's how to run a toolkit 2 rom image (16K) from disk on a QL. Qemulator and IIRC correctly allow you to load 16K rom images like the toolkit 2 one as well. SMSQ/E users can try using the EPROM_LOAD command, but that only accepts ROMs up to 16kb. Marcel -- Dilwyn Jones ___ QL-Users Mailing List http://www.q-v-d.demon.co.uk/smsqe.htm
