lowen
Veteran Member
So, what trips your trigger in terms of how much backwards compatibility a new eZ80-based TRS-80ish computer must have? I'm mostly concentrating on LS-DOS/TRSDOS compatibility here; CP/M and MP/M already have ports to eZ80 and porting to this design wouldn't be hard.
Do you want a machine that can run unmodified DOSes or just well-behaved programs that only use the TRSDOS/LS-DOS exposed API? I'm thinking about the keyboard, video, real physical floppy drives, real physical hard drives, etc. Please post your discussion items; what's most important?
For me; I'm happy with published calls only, no physical floppies or hard disks (floppy images and hard disk images on SD card are ok for me), something beyond what the hardware of the 4P can do now, but with enough hardware support for the LS-DOS system itself to be easily ported. I want high-res graphics, too, through a VGA or HDMI/DisplayPort connection. And I want something beyond emulation; if I wanted emulation, either sdltrs or trs80gp are sufficient to meet the LS-DOS need, and for CP/M there's no reason to go past the superb z80pack emulator.
Do you want a machine that can run unmodified DOSes or just well-behaved programs that only use the TRSDOS/LS-DOS exposed API? I'm thinking about the keyboard, video, real physical floppy drives, real physical hard drives, etc. Please post your discussion items; what's most important?
For me; I'm happy with published calls only, no physical floppies or hard disks (floppy images and hard disk images on SD card are ok for me), something beyond what the hardware of the 4P can do now, but with enough hardware support for the LS-DOS system itself to be easily ported. I want high-res graphics, too, through a VGA or HDMI/DisplayPort connection. And I want something beyond emulation; if I wanted emulation, either sdltrs or trs80gp are sufficient to meet the LS-DOS need, and for CP/M there's no reason to go past the superb z80pack emulator.
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