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Author SHA1 Message Date
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
George Koehler a000c62808 Get moncalls.c to compile on OpenBSD. 
Remove some declarations (not all correct) and #include <errno.h>,
<time.h>, and <unistd.h> to get the correct declarations.

Disable mount(2), umount(2), and stime(2) because BSD (around
4.3BSD-Reno) lost compatibility with these Unix v7 functions.
 2018-06-10 19:05:42 -04:00
George Koehler 250777d1ca Rename setmode() to set_mode() to avoid BSD prototype. 
4.4BSD added a non-standard function setmode() to <unistd.h>; its
prototype is not compatible.
 2018-06-10 19:04:51 -04:00
George Koehler 6f9e418f94 Remove extra #include <stdio.h> to fix uint 
From my request at https://github.com/kstenerud/Musashi/pull/31

There was a conflict between Musahi's uint and OpenBSD's uint:

    $ cc -o m68kmake m68kmake.c
    $ ./m68kmake
    $ cc -DM68K_COMPILE_FOR_MAME=0 -c m68kcpu.c
    In file included from m68kcpu.c:565:
    In file included from /usr/include/stdio.h:46:
    /usr/include/sys/types.h:58:22: error: cannot combine with previous 'int'
          declaration specifier
    typedef unsigned int    uint;           /* Sys V compatibility */
                            ^
    ./m68kcpu.h:75:25: note: expanded from macro 'uint'
    #define uint   unsigned int
                            ^
    1 error generated.
 2018-06-10 16:24:35 -04:00
George Koehler 5404dace3a Stop using <X11/Xfuncproto.h> from x86emu. 
The code included <X11/Xfuncproto.h> only for _X_ATTRIBUTE_PRINTF,
which tells some compilers to check the printf format string.  Remove
so ACK doesn't need any X11 headers.

Some machines don't have the X11 headers, or they need a flag like
-I/usr/X11R[67]/include to find them.
 2018-06-10 16:00:23 -04:00
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
David Given 342a321c87 Fix bogus test. 
Fixes: #90
 2018-06-05 09:20:46 +09:00
David Given c6b9446722 Check in the x86emu-based emulator. Sadly, just like the 8086tiny-based 
emulator, FPU instructions aren't supported.
 2018-06-04 16:19:45 +09:00
David Given d908f9cfb2 Modify the pc86 test harness to use 8086tiny instead of qemu. Sadly, some tests fail. 2018-06-03 15:13:43 +02:00
David Given 0eb89d5d95 Add a clean copy of the Musashi emulator. 2018-06-05 17:04:47 +09:00
David Given d70eb76dbb Modify the pc86 test harness to use 8086tiny instead of qemu. Sadly, some tests fail. 2018-06-03 15:13:43 +02:00
David Given 9132641100 Add the pc86emu skeleton. 2018-06-03 08:24:21 -07:00