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Author SHA1 Message Date
David Given
13e195d19f Warning fixes. 2018-06-17 15:42:26 +02:00
David Given
ce249649b2 Warning fix. 2018-06-17 15:34:29 +02:00
David Given
ddca7276c0
Merge pull request #102 from davidgiven/dtrg-powerpc 
Add a PowerPC simulator for running the tests.
 2018-06-17 11:45:26 +02:00
David Given
89e8956bb2 Fix edge case in rlwnm when the mask is 32 bits wide. All tests now pass. 2018-06-17 11:00:01 +02:00
David Given
7ec9f54679 Turns out that andi and andis only have . forms. Fixed; another test passes. 2018-06-17 10:43:39 +02:00
David Given
78eaf836be Turns out I was returning values from syscalls in the wrong register; fixed. 
More tests pass.
 2018-06-17 10:22:20 +02:00
David Given
ab660a44e9 Lots of floating point, bugfixes, and system calls. Most of the tests pass now. 2018-06-17 09:24:01 +02:00
David Given
67efbb5f7f Do a bit of floating point stuff; added brk(); fixed a horrible bug where 
stores with 16-bit displacements were storing the register number and not the
contents of the register.
 2018-06-16 22:55:23 +02:00
David Given
5d7cdd2c67 Fix a setcr0 bug which was trashing the condition register; some system 
calls are now implemented. A few tests more-or-less pass (but crash on
exit).
 2018-06-16 08:35:36 +02:00
David Given
39a49265ce
Merge pull request #100 from kernigh/kernigh-pdp 
Two fixes for ack -mpdpv7
 2018-06-15 15:40:24 +09:00
George Koehler
5db312a1c0 Prevent crash in isatty() 
The existing code allocated 2 bytes (char*), but gtty() needs 6 bytes
(struct sgttyb), so isatty() smashed the stack and corrupted its
return address, probably causing SIGBUS or SIGSEGV.

Fix by switching to TIOCGETD, which needs 2 bytes.  TIOCGETD isn't in
the manual for tty(4), but does appear in
https://minnie.tuhs.org//cgi-bin/utree.pl?file=V7/usr/sys/dev/tty.c

This fixes hilo_c.pdpv7 and hilo_mod.pdpv7 in simh-pdp11.
 2018-06-15 00:48:29 -04:00
George Koehler
5de5611c24 Use 2-byte alignment in pdpv7 to prevent SIGBUS. 
Change the alignment in C structs (wa, pa, sa, and so on) from 1 to 2
bytes.  This prevents the SIGBUS when PDP-11 Unix V7 catches the
misalignment.  This fixes hilo_p.pdpv7 in simh-pdp11.

Change ALIGN to document that sections have 2-byte alignment.  This
change should have no effect, because the sections only contain 2-byte
values.
 2018-06-15 00:17:12 -04:00
David Given
5111556d14 Got the emulator to the point where we're hitting the first major emulation bug 
(the calloc test hangs).
 2018-06-14 05:53:39 -07:00
David Given
853af4c4dd Some code runs (up to needing setcr0). 2018-06-14 04:41:21 -07:00
David Given
b71145f79d Implement a non-functional skeleton of the PowerPC emulator (with, hopefully, 
most of the instruction decode done).
 2018-06-14 03:07:36 -07:00
David Given
c9e5190a12
Merge pull request #99 from davidgiven/dtrg-ass 
Bodge together a buildable em22 plat for use with int.
 2018-06-14 10:08:17 +09:00
David Given
519eef933c Merge from trunk. 2018-06-13 21:47:25 +09:00
David Given
31c2ba3f94 File cleanup. 2018-06-13 21:47:08 +09:00
David Given
7eaa235fd1 Bodge the ancient em monitor library into building as a libsys for the em22 
plat. It's completely untested, but it builds and makes e.out executables.
 2018-06-13 21:44:25 +09:00
David Given
13a7abdd69 Rename a function to avoid a clash with an em system call. 2018-06-13 21:34:14 +09:00
David Given
670c7ce96f After finding the em_table documentation, move it somewhere where other people 
can find it.
 2018-06-13 20:58:44 +09:00
David Given
15161ebb35 Remember to always link the libsys and libend. 2018-06-13 20:57:31 +09:00
David Given
7f2ca76663 Expose our custom Lua interpreter to the build system so utility scripts can be 
written in it.
 2018-06-13 20:56:49 +09:00
David Given
2e93b8446e
Merge pull request #98 from davidgiven/dtrg-m68k 
Fix sub-word-size type conversions for m68020.
 2018-06-12 14:24:32 +02:00
David Given
3892b7e0e6 Remove bogus conversion from test which was causing failure; you're not allowed 
to do cui or ciu with sizes smaller than a word.
 2018-06-12 21:04:27 +09:00
David Given
6ae38887a7 It appears that the parameter to lol technically has to be word aligned; having 
a non-word aligned parameter is illegal (but most of the toolchain accepts it).
So, word align data structures for em22.
 2018-06-12 20:54:15 +09:00
David Given
7edc835626
Merge pull request #95 from davidgiven/dtrg-b 
Fix occasional weird behaviour causing compilation failures in b.
 2018-06-10 21:22:26 +09:00
David Given
4a249b1bdb Merge. 2018-06-10 20:26:10 +09:00
David Given
d623440c77 Add the core of a simple em22 platform. Unfortunately it doesn't work; the old 
em libmon vanished decades ago (or never existed), and also ass appears to have
a different idea of what the em opcodes are to everything else and gets
confused.
 2018-06-10 20:25:48 +09:00
David Given
cebb238036 Merge. 2018-06-10 18:09:18 +09:00
David Given
003799f898 Fix table underrun when looking up the character class of the EOF character, 
-1.
 2018-06-10 17:52:45 +09:00
David Given
5d519b79f7
Merge pull request #94 from davidgiven/dtrg-ass 
Get int and ass building.
 2018-06-09 22:44:24 +09:00
David Given
e7124f3e3f File cleanup. 2018-06-09 21:21:28 +09:00
David Given
a12181748b Make ass and int built with clang --- surprisingly easy. 2018-06-09 21:18:50 +09:00
David Given
59b383afd0 Make the em interpreter build --- again, lots of warnings, so it probably won't 
work on clang. I have no idea whether it runs or not as building a e.out
program is quite hard and needs a special platform.
 2018-06-09 21:13:31 +09:00
David Given
d10a594c04 Get ass running --- it's very K&R and almost certainly won't build on clang, 
but it works on gcc.
 2018-06-09 14:10:45 +09:00
David Given
ae3074cd9a
Merge pull request #93 from davidgiven/dtrg-pc86-2 
Rearrange the tests; don't run unsupported tests on emulators which don't support them.
 2018-06-08 21:40:25 +09:00
David Given
19cd42124f Rearrange the tests into sets; allow plats to skip sets; pc86 and linux68k now 
skip the tests which use floating point instructions (as their emulators don't
support them).
 2018-06-08 15:59:04 +09:00
David Given
b94199aba7
Merge pull request #92 from davidgiven/dtrg-pc86-2 
Replace the qemu pc86 emulator with a custom x86emu-based one.
 2018-06-08 00:18:18 +09:00
David Given
1d4ddb939d Merge from trunk. 2018-06-08 00:05:50 +09:00
David Given
37f466a8f4
Merge pull request #91 from davidgiven/dtrg-m68k 
Add a Musashi-based 68020 emulator; use it to run the linux68k tests.
 2018-06-07 13:48:06 +09:00
David Given
b9c0e1d964 Dummied out some more system calls --- more tests pass. 2018-06-07 13:12:15 +09:00
David Given
2682c125e0 More real ELF loading and brk handling; more tests pass. 2018-06-07 13:03:36 +09:00
David Given
396795105f Beat the 68k simulator into enough shape that at least *some* of the tests pass. 2018-06-06 22:39:43 +09:00
David Given
4b26f75d23 Hang on, the 68k is big-endian --- I'm extracting words (and bytes) from longs 
incorrectly.
 2018-06-06 12:49:21 +09:00
David Given
2cf39be752 Get the emulator to the point where it'll start to run code; it then fails, 
because the version of Musashi I imported doesn't support floating point...
 2018-06-05 23:17:22 +09:00
David Given
a8802c934b Enable tests for linux68k. 2018-06-05 23:16:34 +09:00
David Given
5034ed1c39 Crudely beat the standard Masushi simulator into working in the ACK framework. 2018-06-05 17:45:00 +09:00
David Given
3f049a4c29 Basic mid now throws an error on out-of-bounds parameters rather than returning 
an uninitialised pointer (and crashing).

Fixes: #54
 2018-06-05 09:53:56 +09:00
David Given
9dede01efe Fix bogus test. 
Fixes: #89.
 2018-06-05 09:41:31 +09:00