[guss-hackers] More progress!

[Johan Rydberg]

Just a small progress report;

The MIPS target is probably the one most finished at the moment.  All tests
(all seven of them) in the testsuite passes, and it boots linux but starts
raising exceptions somewhere in the code.  This is probably due to the fact
that there is no hardware, except a ledbar, connected to the system.

I will extend the testsuite so that it is somewhat complete, and when
GUSS can boot either Linux, Topsy or any other MIPS OS I will start working
on profile functions in the simulator.

A transcript from a "normal" GUSS session;

$ ./guss --verbose --hw-tree tree ~/vmlinux-2.2.12.mips.malta.eb-01.06.srec 
guss 0.0
Copyright 2002, 2003 Johan Rydberg.
GUSS is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Loading section .sec1, size 0x117f8c lma 0x0
Loading section .sec2, size 0x1470c lma 0x0
Loading section .sec3, size 0x18 lma 0x0
Loading section .sec4, size 0x122a0 lma 0x0
/home/jrydberg/vmlinux-2.2.12.mips.malta.eb-01.06.srec: no symbols: 0
(guss) tbreak 100000
Time breakpoint installed at 100,000 (+100000) simulated insns.
(guss) run
/address@hidden: Led update position 0: 'L'
/address@hidden: Led update position 1: 'I'
/address@hidden: Led update position 2: 'N'
/address@hidden: Led update position 3: 'U'
/address@hidden: Led update position 4: 'X'
/address@hidden: Led update position 5: ' '
/address@hidden: Led update position 6: ' '
/address@hidden: Led update position 7: ' '
taking exception at 80228b94: exc code 2
Breakpoint hit
(guss) show pmap
Memory map for global physical memory:

0x000c0000: ...............................................................D
0x00100000: DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
0x00140000: DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
0x00180000: DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
0x001c0000: DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
0x00200000: DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
0x00240000: DDDDDDDDDDDDDDDDDDDDDDDDDDDDDD..................................
0x1fc00000: DDDDDDD.........................................................

Pages of 4K allocated: 358 (1,466,368 bytes of host memory)
(guss)