To be honest I've forgot the details during last 15 years... The idea was that I booted to 4DOS by adjusting the start up script. I remember later there was made a GEOS program that automatically rebooted directly to DOS from menu (I think it was delivered with FreeDOS), but I don't remember the name anymore. I made a simple TSR with assembler that prevented programs from halting when they called unsupported BIOS routines to make more DOS programs executable, but I don't remember any details anymore. That "tiny BlueMSX"-emulator was custom build for DOS environment by the developer (Daniel Vik) and then I binary patched some routines and added the background graphics by patching BMP-files with DOS DEBUG-command... in general it was really quite a mess... CPU speed I changed by directly poking the internal CPU registers. The details I found from CPU manual released by AMD... How ever boosting the CPU had no much effect as the bus in 9110 was what it was... With higher clock speed the CPU just had more time to wait. :) The CPU can be boosted up to 100MHz, but I didn't try beyond 66MHz as the manual said that it needs external cooling if you do that and even with 33MHz without power saving features the phone became pretty hot. Unfortunately I newer got the PC DOS games to run with it properly... Although the integrated display adapter should be CGA/EGA compatible the used 640x200 LCD screen made the graphics go more or less mad each time I tried. This is pretty much all technical details I can remember from that phone...
How you run the msx emulator on nokia 9110? Can you help me
To be honest I've forgot the details during last 15 years... The idea was that I booted to 4DOS by adjusting the start up script. I remember later there was made a GEOS program that automatically rebooted directly to DOS from menu (I think it was delivered with FreeDOS), but I don't remember the name anymore. I made a simple TSR with assembler that prevented programs from halting when they called unsupported BIOS routines to make more DOS programs executable, but I don't remember any details anymore. That "tiny BlueMSX"-emulator was custom build for DOS environment by the developer (Daniel Vik) and then I binary patched some routines and added the background graphics by patching BMP-files with DOS DEBUG-command... in general it was really quite a mess... CPU speed I changed by directly poking the internal CPU registers. The details I found from CPU manual released by AMD... How ever boosting the CPU had no much effect as the bus in 9110 was what it was... With higher clock speed the CPU just had more time to wait. :) The CPU can be boosted up to 100MHz, but I didn't try beyond 66MHz as the manual said that it needs external cooling if you do that and even with 33MHz without power saving features the phone became pretty hot. Unfortunately I newer got the PC DOS games to run with it properly... Although the integrated display adapter should be CGA/EGA compatible the used 640x200 LCD screen made the graphics go more or less mad each time I tried. This is pretty much all technical details I can remember from that phone...
Thank you very much