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Author SHA1 Message Date
David Given 32c881474e Create a basic and probably wrong common unistd.h, which replaces the plat one. 
Made this work with cpm (but nothing else yet).
 2018-06-23 11:46:55 +02:00
David Given dd0f959245 Move assert into core. 2018-06-23 11:16:06 +02:00
David Given fe3951d4ae Warning fix. 2018-06-23 11:14:49 +02:00
David Given fac0764621 Don't crash and burn if there are no tests to run. 2018-06-23 11:14:40 +02:00
David Given 5fd8d772fd Move the string-to-float functions into core, after marking them as 
ACKCONF_WANT_FLOAT.
 2018-06-23 11:14:24 +02:00
David Given 94ffa3ba88 libc floating point and stdio floating point can now be turned on and off using 
ACKCONF variables.
 2018-06-23 00:04:14 +02:00
David Given 9bf1d548fc Rearrange the libc config files, ready for adding new options. 2018-06-22 23:43:15 +02:00
David Given b21c099a57 Get the em libc working again: remove the modula-2 termcap library, as it's a 
straight copy of the libc one and having two symbols defined at once gets ass
upset.
 2018-06-22 23:17:14 +02:00
David Given 035c9558e8 Merge from default. 2018-06-22 22:43:02 +02:00
David Given 4cf3188fd1
Merge pull request #105 from davidgiven/dtrg-ass 
Prevent ass crashing on error on 64-bit machines.
 2018-06-22 22:42:11 +02:00
David Given a0c6fea32c Replace fake-varargs, which doesn't work on 64-bit machines, with real varargs. 2018-06-22 22:29:52 +02:00
David Given c5fd338300 Replace fake-varargs, which doesn't work on 64-bit machines, with real varargs. 2018-06-22 22:29:52 +02:00
David Given c0276416d8 Move some more libc functions into core. 2018-06-22 22:20:02 +02:00
David Given d1cdb07719 Realise that the libc core can safely call other libc core functions, even if 
they're not defined in the core: so putw() can call stdio stuff, for example.
So the earlier concept of pureness isn't necessary. Rename accordingly.
 2018-06-21 23:24:23 +02:00
David Given 62025c92bd The ctype functions are pure. 2018-06-21 23:06:29 +02:00
David Given d9d7ffe0d7 The maths library is pure. 2018-06-21 23:00:33 +02:00
David Given f9c059812b Moved the setjmp functions into the new pure directoy. 2018-06-21 22:55:42 +02:00
David Given 32f47b1d24 Move the pure locale functions into the new pure directory. 2018-06-21 22:54:25 +02:00
David Given b9d2f353d9 Move the pure stdlib functions into the new pure directory. 2018-06-21 22:52:31 +02:00
David Given 4dbdb7d8d5 Rethink the libc layout. 2018-06-21 22:47:02 +02:00
David Given 83e1b2ad94 Move the str and mem functions into the new src/core. 2018-06-21 22:39:08 +02:00
David Given 93f39e4bbf Run libcc.ansi through clang-format. 2018-06-21 22:33:47 +02:00
David Given 60b7d8de6e
Merge pull request #96 from kernigh/kernigh-emu-1 
Fixes to build emulators, ass, int on OpenBSD
 2018-06-20 22:30:01 +02:00
David Given 9eff7102e9
Merge pull request #103 from davidgiven/dtrg-warnings 
Fix a lot of warnings.
 2018-06-18 22:31:35 +02:00
David Given 698613cd7d Turns out that the compiler needs access to the libpc headers too; refactor 
into a separate target to avoid build loops and make it work.
 2018-06-18 22:17:38 +02:00
David Given 11854f4dfe Ansify and warning fix. 2018-06-17 22:30:27 +02:00
David Given 5784f5fabe Run C files through clang-format. 2018-06-17 16:11:29 +02:00
David Given 9ede428e3c Use cproto to extract all the prototypes. 2018-06-17 16:10:57 +02:00
David Given 9947e7ac63 Added a pc.h to contain libpc prototypes; some ansification. 2018-06-17 15:54:18 +02:00
David Given d1671fc2e3 Move the private Pascal headers into libpc where they belong. 2018-06-17 15:44:33 +02:00
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