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Author SHA1 Message Date
tkchia b59422a24b pc86: add degenerate "hard disk partition table" to boot sector 
This is needed on some PCs to boot the pc86.img as a USB drive.
 2022-09-20 16:14:38 +00:00
David Given 25b6712e63 Rework all the ackbuilder scripts not to use wildcards, because we can't expand 
them without luaposix, which isn't available (easily) on OSX or Windows.
 2022-07-14 23:57:54 +02:00
Tee-Kiah Chia 64a74b4e09 Add .seek asm pseudo-op, advances location counter to fixed offset 
The new .seek assembler pseudo-op advances the location
counter to a fixed offset within a section --- or to a fixed
address, if the section is a .base'd section.  It works
somewhat like the GNU assembler's .org pseudo-op, though
with a hopefully less confusing name.

This pseudo-op lets us avoid having to manually compute the
needed boot sector padding in the pc86 start-up code
plat/pc86/boot.s .
 2021-03-19 13:36:24 +00:00
George Koehler 20a4d401d0 Add first long-long test for linux386. 
Skip the long-long test set on other platforms, because they don't
have long long.  Each platform would need to implement 8-byte
operations like `adi 8` in its code generator, and set long long to
8 bytes in its descr file.

The first test is for negation, addition, and subtraction.  It also
requires comparison for equality.
 2019-09-05 13:13:02 -04:00
David Given 97e6baa052 Fix register corruption when incrementing locals; attempt to solve the 
alignment issue.
 2019-06-17 23:31:54 +02:00
David Given 1fc20e90c0 Remove c99-isms. 2018-06-23 23:56:34 +02:00
David Given 64ae1d7583 Move time() into sys; change the name of the variable which controls it. 2018-06-23 19:40:50 +02:00
David Given dbb2062d03 Made pc86 work with the new libc. 2018-06-23 12:59:40 +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 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 11854f4dfe Ansify and warning fix. 2018-06-17 22:30:27 +02:00
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 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 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 9132641100 Add the pc86emu skeleton. 2018-06-03 08:24:21 -07:00
David Given eb96ea5d28 Add a clean copy of the x86emu library. 2018-06-03 08:06:23 -07:00
David Given abbead482a Sections are now aligned (required by the EM spec). 2017-01-07 18:47:46 +01:00
David Given 0e10329876 Fix an issue throughout where B couldn't be built by ackprogram due to symbol 
laziness.
 2016-12-29 17:11:53 +00:00
David Given 4485d89b23 Hook the B compiler up to the compiler driver. 2016-11-27 20:48:07 +01:00
David Given 5bce5fc4da Change the extension used by Basic files for .b to .bas, to avoid conflicts 
with B.
 2016-11-27 20:38:33 +01:00
David Given 8a58614aef Rework the tests to run on pc86; lots of test fixes for the brk() test, which 
was nearly useless; lots of fixes to qemuppc and pc86 sbrk(), which was broken;
change the pc86 console to echo output to the serial port (needed for running
tests on qemu).
 2016-11-26 11:23:25 +01:00
David Given bfa8e501a3 Make pc86 echo console output to the serial port, so qemu can pipe it to 
stdout.
 2016-11-25 20:28:41 +01:00
David Given 36ab90385f Change sbrk() to take an int rather than an intptr_t (following the OpenBSD way 
rather than the Linux way; various non-C bits of the ACK assume it takes an
int, so it's cleaner).
 2016-11-23 22:06:24 +01:00
David Given f67c98e239 Distributions are a pain --- let's not bother any more. Instead, we just tag 
the repository and download a complete snapshot, old and ancient stuff and all.
 2016-09-02 23:00:38 +02:00
David Given 612e38f1c6 Remove the old make-based build system, plus some big chunks of horribly 
obsolete protomake build system.
 2016-09-02 22:17:51 +02:00
David Given 5bae29a00c ego now builds and is used. 
This needed lots of refactoring to ego --- not all platforms have ego descr
files, and ego will just crash if you invoke it without one. I think originally
it was never intended that these platforms would be used at -O2 or above.

Plats now only specify the ego descr file if they have one.
 2016-08-21 22:01:19 +02:00
David Given 420c47c386 Fix dependency error (only shows up with make, not ninja. Odd). 2016-08-15 00:46:43 +02:00
David Given 3df4906d52 Turns out I wasn't building the syscall libraries. Do so. 2016-08-14 11:23:57 +02:00
David Given b549980af2 Wasn't exporting the plat headers; refactor to make this a little cleaner. 2016-08-14 11:01:36 +02:00
David Given 262c5fedcf Biggish refactor to break cycles; my build rules were full of them. cpm builds, 
which requires top and topgen.
 2016-08-14 01:39:40 +02:00
David Given 3ce4e53aa9 Most of libc builds now (missing malloc). 2016-08-08 23:55:47 +02:00
David Given 0d77cb8279 We can build our first C file. 2016-08-07 21:56:53 +02:00
David Given b2bb4ce3b2 Builds libend (the simplest library). Becoming obvious I need to rework the way 
ackbuilder deals with lists.
 2016-07-30 00:39:22 +02:00
David Given 363d13cc2f C preprocessor; tabgen; now the pc86 boot.s builds using the ack 
toolchain.
 2016-07-29 00:22:49 +02:00
David Given a8a9d1bbfa yacc, ncgg; platform ncg builds now. 2016-07-26 23:35:30 +02:00
David Given bff5c4019c Baby steps towards building a platform --- make the assembler work. 
Add ackbuilder support for C preprocessor files and yacc.
 2016-07-24 00:50:02 +02:00
David Given 88bd7ce126 Remove defunct pmfiles. 
--HG--
branch : default-branch
 2016-06-03 13:56:50 +02:00
David Given 92817a6ad7 Allow platforms to specify size of long double; seperate alignment from size. 
--HG--
branch : dtrg-videocore
 2013-05-21 19:18:11 +01:00
David Given 11377070fd Update distribution files. 
--HG--
branch : dtrg-buildsystem
 2013-05-15 23:46:15 +01:00
David Given 07453d184a Top, topgen, aelflod. Moved the libraries back into the platform-specific 
directories --- wrangling descr files was too hard. C programs can be built
for cpm, pc86, linux386, linux68k!

--HG--
branch : dtrg-buildsystem
rename : util/ack/build.mk => util/led/build.mk
rename : util/LLgen/build.mk => util/topgen/build.mk
 2013-05-13 23:26:15 +01:00
David Given 442306d557 Split off some of the platform-independent stuff (such as as and ncg). 
--HG--
branch : dtrg-buildsystem
rename : plat/pc86/build.mk => mach/i386/build.mk
rename : plat/pc86/build.mk => mach/i80/build.mk
rename : plat/pc86/build.mk => mach/i86/build.mk
rename : plat/pc86/build.mk => mach/m68020/build.mk
rename : plat/pc86/build.mk => mach/powerpc/build.mk
 2013-05-13 22:12:46 +01:00
David Given b0c238eb5d Made a start on building the runtimes for each platform and language; the 
Linuxes all build.

--HG--
branch : dtrg-buildsystem
rename : modules/src/em_mes/build.mk => modules/src/read_em/build.mk
rename : plat/pc86/build.mk => plat/linux386/build.mk
rename : plat/pc86/build.mk => plat/linux68k/build.mk
rename : plat/pc86/build.mk => plat/linuxppc/build.mk
rename : util/ack/build.mk => util/misc/build.mk
 2013-05-12 23:51:55 +01:00
David Given c1aca7dae5 First milestone of replacing the build system. 
--HG--
branch : dtrg-buildsystem
rename : lang/cem/cpp.ansi/Parameters => lang/cem/cpp.ansi/parameters.h
 2013-05-12 20:45:55 +01:00
George Koehler 3dcc3bd1cf Allow pc86 bootloader to boot from more floppy drives. 
When the bootloader probes the drive geometry, the BIOS can clobber the
es register.  If this happens, the bootloader loads the program to the
wrong address, and jumps off the code.  This happens with an emulated
floppy drive in Bochs or QEMU, but not with an emulated hard disk.
 2012-09-23 14:43:22 -04:00
dtrg 78777e802b Now using more conservative optimisation due to random seg fault issues. 2007-04-29 23:02:23 +00:00
dtrg eb4ea1e761 Use better optimisation options. 2007-04-29 21:24:17 +00:00
dtrg a7323e1a8b Documented floating-point status. 2007-04-28 22:34:47 +00:00
dtrg 24ea8aee3d Updated for the 6.0pre2 release. 2007-04-24 20:45:58 +00:00
dtrg 740940c9fc Fixed major typos in the signal declarations that was preventing anything that used signal() from compiling. 2007-04-24 19:34:34 +00:00
dtrg b8e1348f2a Ensured that _errno is always defined. Rejigged the pc86 boot code so it doesn't always waste 510 bytes of memory. 2007-04-24 19:25:00 +00:00