127cf78387
DCSR cause was moved, bug debug ROM wasn't updated
As a result Debug ROM would always take the spontaneous halt code path.
This didn't hurt spike since (so far?) the spike debug handler doesn't
attempt to do anything quick while code is running. But now the ROM is
more correct.
10 years ago
e977e2297a
Fix 'make check' when run from build directory.
10 years ago
2fe8a17abf
Fix build when not building inside root directory
10 years ago
78dd5ad00d
Add gitignore
10 years ago
df1f020012
Move sethaltnot and cleardebint.
Now it matches Krste's memory map.
10 years ago
106ece891a
New encoding.h for new CSR addresses.
10 years ago
8e11417db5
Move cleardebint, per spec.
10 years ago
4c3507d350
Use .word for mret, for now.
The current assembler doesn't seem to know it?
10 years ago
968408423f
Change DCSR bits to match spec.
Cleaned up debug ROM code a little.
10 years ago
cfdd0f22f6
Kill spike as soon as the test is done with it.
10 years ago
6478085c7b
Link standalone programs at 0x80010000.
This leaves some memory for pk, where it keeps tohost/fromhost which we
cannot just write to.
10 years ago
fd6c5e5347
Turn off debugging.
All the printfs would be pretty annoying if you're actually using this
to debug something.
Also fixed a small jump bug in halt.
10 years ago
91a4f8114d
Tell gdb we can handle large packets.
This speeds up downloads to 93KB/s, which is starting to get usable.
10 years ago
9a5ad6994b
Fix writing odd numbers of bytes to odd addresses.
10 years ago
df6794374b
Exceptions in Debug Mode don't update any regs.
10 years ago
6201d0ee2c
Ignore MPRV in Debug Mode.
10 years ago
9baa8a015c
Write test for downloading a mostly random program
It passes, but it's slow.
10 years ago
5b2c9df0b3
Remove already-implemented TODO.
10 years ago
060d4ee6c8
Move debug rom link map to the right place.
Turns out this doesn't actually matter, but it's better to be correct.
10 years ago
b30f5dcca5
Remove obsolete TODO.
10 years ago
74a13a1630
Implement ebreak[mhsu].
10 years ago
e67da00a37
Remove dependency on include file in my homedir.
10 years ago
8b176c4e96
Force gdb to not print entry values.
All of a sudden gdb decided to start printing them, which messed up the
breakpoint test. It would only print them in the test, not if I manually
ran the same commands. I'm sure it's my fault somehow, but this should
keep things consistent in the future.
10 years ago
c7643c32e0
mprv test now breaks like it's supposed to.
10 years ago
45fb0a0f0e
Deal with escapes that gdb sends in binary data.
10 years ago
9b8b9b69d0
Make -H halt the core right out of reset.
Added a test, too.
10 years ago
7e5c1b420d
Halt when gdb user hits ^C.
10 years ago
f3c39b00ca
Make sure to fence.i after setting/clearing a swbp
This doesn't change anything since Debug ROM already executes a fence.i,
but it will be more correct if that is no longer necessary.
10 years ago
76df045861
Implemented register writes.
All existing tests pass!
10 years ago
a950cdebb6
Fix reading CSRs.
10 years ago
dd233bc499
Single step appears to work.
10 years ago
6ef848928a
Software breakpoints sort of work.
10 years ago
850e745dcf
Use fence.i in Debug ROM.
This replaces a hack that just disabled all of the icache.
10 years ago
ee96c255f1
Fix off-by-two in general read registers.
Now the exit test passes!
10 years ago
f9e7a3f1e1
Walk page tables to translate addresses.
10 years ago
75b54e90a9
Turn operation into a queue,
in preparation for address translation.
10 years ago
6a48baf806
Remove unused code.
Add some debug printfs, which I'll be wanting for at least a little
while.
10 years ago
113ea7930b
Save/restore mstatus, too.
Also read DCSR, which will be useful to figure out why we halted.
10 years ago
7112906ab9
Ignore more files.
10 years ago
6791bfeb57
Properly read s0/s1.
10 years ago
fdc92ba2c5
Add dret.
10 years ago
19f33802a1
Implement memory writes.
10 years ago
8e418f9e54
Implement single memory read access.
Prevent unaligned accesses in memory read.
Also change how exceptions in Debug Mode are signaled.
10 years ago
cb73c085a2
Properly save/restore dpc, mcause, mbadaddr.
Also clear dcsr.cause when leaving Debug Mode so future traps go where
they should.
10 years ago
784fea2bbe
Exceptions in Debug Mode, stay in Debug Mode.
Now things don't blow up when reading a non-existent CSR.
10 years ago
47f64aaf95
Remove debug printfs.
10 years ago
990c6c4809
Have Debug memory kind of working again.
Debug exception -> ROM -> RAM -> ROM, then something goes wrong.
10 years ago
57ff1b6595
Read FP registers, and general CSRs*
*) Only works if you read CSRs that actually exist.
10 years ago
901541c2ec
Continue works well enough for DebugTest.test_exit
10 years ago
f7f2623753
Fix race using fence.
10 years ago
Tim Newsome
Andrew Waterman