| This is version 0.5 of a simulator for the SAGE-68K computer. See www.sageandstride.org for details. | |
| This is called Version 0.5 because it still lacks a few things and has a number of known bugs. | |
| Features and problems | |
| - currently is at the level of a SAGE-II system with two floppy drives | |
| - Currently runs CP/M-68K 1.2 (IMD-Disk included) | |
| - Console and SIO can be redirected to a telnet session | |
| - does not run UCSD-Pascal yet (in progress) | |
| - does not support IEEE-interface yet (and maybe won't ever - not really useful) | |
| - does not support Winchester operation yet, although BIOS ROMs are included | |
| - m68k_cpu.c has a number of not yet implemented instructions (although sufficient for CP/M-68K!) | |
| (implementation in progress) | |
| - does not yet fully support 68010 CPU (in progress, not needed for Sage, though) | |
| - does not implement 68881 FPU (in progress, not needed for Sage, though) | |
| - has stubs for MMU integration, but does not yet implement one - passthrough (in progress, not needed for Sage, though) | |
| - still contains some timing bug in floppy operation (timing loop, 8253 emulation, IRQ speed) which | |
| results in rather long floppy recognition time (disk change), after that I/O is at acceptable speed | |
| - probably there is still a bug in console/sio telnet handling when the character buffer | |
| is full (no automatic draining, will be investigated) | |
| - no optimization of simulation speed at all, but runs acceptable with current PCs. | |
| - not yet tested under anything else than MINGW | |
| Holger Veit, March 2011 | |
| $ BIN/sage | |
| Sage-II/IV 68k simulator V3.8-2 | |
| sim> show dev | |
| Sage-II/IV 68k simulator configuration | |
| CPU, BIOS=sage-ii.hex | |
| PIC, I/O=0xFFC041-0xFFC043 | |
| TIMER1, I/O=0xFFC001-0xFFC007 | |
| TIMER2, I/O=0xFFC081-0xFFC087 | |
| DIP, I/O=0xFFC021-0xFFC027, GROUPA=11100111, GROUPB=11111000 | |
| FD, I/O=0xFFC051-0xFFC053, 2 units | |
| CONS, I/O=0xFFC071-0xFFC073, 2 units | |
| SIO, I/O=0xFFC031-0xFFC033, 2 units | |
| LP, I/O=0xFFC061-0xFFC067 | |
| sim> quit | |
| Goodbye | |
| Debug output disabled | |
| $ cp SAGE/FILES/68k.sim . | |
| $ cp SAGE/FILES/cpm68k12.imd . | |
| $ cp SAGE/sage-ii.hex . | |
| $ BIN/sage 68k.sim | |
| Sage-II/IV 68k simulator V3.8-2 | |
| Debug output to "debug.log" | |
| Loading boot code from sage-ii.hex | |
| SAGE II Startup Test [1.2] | |
| RAM Size = 512K | |
| Booting from Floppy | |
| SAGE CP/M-68k Bootstrap v2.1 | |
| SAGE CP/M-68k v1.2 447K TPA | |
| A>STARTUP | |
| A>SETENV TERM TVI950 | |
| A>SETENV PATH |A0: | |
| A>dir | |
| A: MINCE SWP : MINCE 68K : CPM SYS : SAGEBIOS SYS : PIP 68K | |
| A: STAT 68K : AR68 68K : LO68 68K : AS68 68K : MIND SUB | |
| A: DDT 68K : SAGE4UTL 68K : INIT 68K : DUMP 68K : COPY 68K | |
| A: DDT68000 68K : P SUB : ASGO SUB : PE SUB : AS SUB | |
| A: LNK SUB : M SUB : ARMATH SUB : FIND 68K : RED SUB | |
| A: SCREEN 68K : MCC SUB : LINKCORE SUB : SETPRNTR 68K : AS68SYMB DAT | |
| A: E SUB : REDASM SUB : CORE SUB : PRINT 68K : SETENV 68K | |
| A: STARTUP SUB : HALT 68K : SPACE SUB : SIG TXT : SPACEM SUB | |
| A: ORBIT SUB : TLNK SUB : BRWNIES TXT | |
| A>stat a: | |
| A: RW, FREE SPACE: 0K | |
| A>^E | |
| Simulation stopped, PC: 0007C8C4 (stop #2000) | |
| sim>quit | |
| Goodbye | |
| Debug output disabled | |