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Author SHA1 Message Date
David Given 6e9c2d5c0d Also call .trp .trap, for ncg compatibility. 2016-11-20 19:39:28 +01:00
David Given 2d0bc7ef0d Finally fix the build system issue where ackprogram would try to explicitly 
link all the language libraries.
 2016-11-20 18:57:44 +01:00
David Given 953c08839f inn works now; add a helper for it. 2016-11-20 12:53:44 +01:00
David Given 196fa914b3 lxa now works, I hope; traps are better (and stubbed out on qemuppc). 2016-11-20 11:57:21 +01:00
David Given d5328492d7 Better handling of float conversions; more tests; converting to unsigned ints 
works now.
 2016-11-20 11:27:40 +01:00
David Given 132baac78a Add some more tests. 2016-11-20 10:46:53 +01:00
George Koehler 6e31d46d6f Fix my typo to put symbol "begrom" in correct section. 2016-11-19 19:23:42 -05:00
David Given 454a7494bb cif8 and cuf8 work now. More tests. 2016-11-19 11:42:30 +01:00
David Given db3564f35a Use .hol0 as an additional name for hol0; mcg requires it. 2016-11-19 11:09:07 +01:00
David Given d31bc6a3f9 Made csa and csb work with mcg; adjust the libem functions and the 
corresponding invocation in the ncg table so the same helpers can be used for
both mcg and ncg. Add a new IR opcode, FARJUMP, which jumps to a helper
function but saves volatile registers.
 2016-11-19 10:55:41 +01:00
David Given a4616b7124 Betterer timeout handling. 2016-11-17 22:04:50 +01:00
David Given c25ad82a89 Tests can now specify (via a hacky filename suffix) which runtime they want. 2016-11-16 21:08:03 +01:00
David Given 71e6ca26d5 Add another test. 2016-11-16 20:56:45 +01:00
David Given edfee33576 Cleanup; the test driver is now way more robust. 2016-11-16 20:50:14 +01:00
David Given cc686ded62 Get subtractions the right way round. 2016-11-15 20:25:11 +01:00
David Given 5e8babf098 Add a basic integer shift test. 2016-11-14 22:12:13 +01:00
David Given c6bce0aaee Add basic integer comparison test. 2016-11-14 22:01:25 +01:00
David Given 6a4f465f53 Add a rather bodged test framework for the qemuppc plat, which only runs if the 
qemu-system-ppc emulator is installed.
 2016-11-13 13:37:22 +01:00
David Given f52cb45e49 Add just enough Open Firmware support for an output console. 2016-11-12 22:09:54 +01:00
David Given 48e74f46fc Add the very experimental qemuppc plat, intended to generate minimal images 
which can be emulated using qemu (for, hopefully, a test suite). Currently it
generates images which won't run because there's no RAM.
 2016-11-12 19:20:58 +01:00
George Koehler 0d0495e818 Install only 1 copy, not 2 copies, of osx headers. 
Before this commit, the headers in plat/osx/include got installed
twice into PLATIND/osx386/include and PLATIND/osxppc/include.  This
commit installs them once into PLATIND/osx/include and changes both
descr files to find them.

Several rules in lang/ depend on plat/osx386/include+headers or
plat/osxppc/include+headers.  They each become a simplerule that
depends on plat/osx/include+headers.
 2016-11-08 17:13:51 -05:00
George Koehler ed7fb69f79 Add the missing return in plat/osx/libsys/creat.c 
Before now, it might have worked by accident if the return value from
open() stayed in the function return area.
 2016-11-08 15:35:02 -05:00
George Koehler 7f94e971fd Remove trailing whitespace in plat/osx* 
Also fix a comment.
 2016-11-08 15:22:09 -05:00
David Given 8c3670483f Get top working with the PowerPC; use it to eliminate useless branches and 
moves.
 2016-10-29 23:37:11 +02:00
David Given a8c4dac67c Merge from default (merging in George Koehler's PowerPC changes). 2016-10-29 22:40:40 +02:00
David Given 5f0164db62 Bolt mcg into the PowerPC backend. It doesn't build yet, but it is generating 
*some* code.
 2016-10-17 00:06:06 +02:00
David Given d539389e81 Merge in the unfinished PowerPC branch. 2016-10-16 22:38:27 +02:00
George Koehler 02fb480217 Commit a preview of osx386 and osxppc as new platforms. 
These produce Mach-o executables for Mac OS X on Intel or PowerPC
processors.  Our code generator for PowerPC (mach/powerpc) still has
bugs.  Some examples seem to run, but startrek crashes.  Our code
generator for Intel (mach/i386) is better.

There is a problem with job control.  If you run paranoia or startrek,
then suspend the job (^Z) and resume it ('fg' in bash), then read(2)
might fail with EINTR.

The larger files in this commit are
 - plat/osx/cvmach/cvmach.c
 - plat/osx/libsys/brk.c
 - plat/osx386/libsys/sigaction.s
 - plat/osxppc/libsys/sigaction.s
 2016-10-02 14:58:05 -04:00
George Koehler 9017ba9dea Merge branch 'default' into kernigh-linuxppc 2016-09-30 13:55:06 -04:00
George Koehler ce5faba919 Remove .linenumber and .filename; use hol0 and hol0+4. 
We need this because some .e files in lang/ are using 'loe 0' and 'lae
4' to load the line number from hol0 and filename from hol0+4.
 2016-09-30 13:40:36 -04:00
George Koehler b427d33f9f Define the begdata, begrom, begbss symbols for linuxppc. 
I copied the definitions from linux386 and linux68k.

This change also moves _errno and the other common symbols in boot.s
from .text to .bss.  Common symbols belong in .bss, but the assembler
seems dumb enough to put them in any section.
 2016-09-30 13:21:42 -04:00
George Koehler 865ef629dd Multiple tweaks to plat/linuxppc/descr 
Don't define __POWERPC.  I don't know any other compiler that defines
__POWERPC and don't want to invent a new macro.  Apple's gcc 4.0.1
from Xcode 2.5 defines __ppc__, _ARCH_PPC, __POWERPC__.  Debian's gcc
4.9.2-10 defines _ARCH_PPC, __PPC__, __powerpc__, __PPC, __powerpc,
PPC, powerpc.

Move the base vm address from 0x80000000 down to 0x10000000, as this
is where Debian loads /bin/true.  This is still higher than the base
addresses for linux386 and linux68k.

Sync led's arguments with linux386.
 2016-09-21 16:26:30 -04:00
George Koehler f6dc6f6875 Implement isatty() for Linux. 
If it understands TIOCGETD, then it is a tty, else it isn't one.  This
seems to help Basic's input statement so I can see the prompt before
I enter my input.
 2016-09-20 21:28:37 -04:00
George Koehler 5b69777647 Rename our pseudo-opcode 'la' to 'li32'. 
GNU as has "la %r4,8(%r3)" as an alias for "addi %r4,%r3,8", meaning
to load the address of the thing at 8(%r3).  Our 'la', now 'li32',
makes an addis/ori pair to load an immediate 32-bit value.  For
example, "li32 r4,23456789" loads a big number.
 2016-09-18 17:03:23 -04:00
David Given 80cb6ba927 Eliminate the RELOH2 relocation, as it never worked --- the address would be 
calculated incorrectly because of overflow errors.

Replace it with an extended RELOPPC relocation which understands addis/ori
pairs; add an la pseudoop to the assembler which generates these and the
appropriate relocation. Make good.

--HG--
branch : dtrg-experimental-powerpc-branch
 2016-09-17 12:43:15 +02:00
David Given 45a950571d Mostly add support for the experimental and largely broken linuxppc platform. 
(Doesn't quite build.)

--HG--
branch : dtrg-experimental-powerpc-branch
 2016-09-15 23:12:03 +02:00
David Given 8c94b1316c Add unlink system call. 2016-09-04 19:23:02 +02:00
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 1a7b4f8729 Build the examples when doing a normal build; this exercises the compiler as a 
whole and is one step further towards a proper test suite.
 2016-08-20 14:05:24 +02:00
David Given edee22510b liblinux is no more; its files are now in libsys. 2016-08-20 14:03:49 +02:00
David Given 52eaf753b6 rpi has a time() function; don't try to call gettimeofday(). 2016-08-20 14:03:19 +02:00
David Given 204f932ed2 Raspberry Pi backend now builds. 2016-08-20 12:40:13 +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 38fa6941d5 linux68k builds now. 2016-08-14 11:34:18 +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 f253b6a169 linux386 builds. Also, forgot to turn back on the language runtimes. 2016-08-14 10:37:55 +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 e0b8bd221d Pascal runtime library now builds. 2016-08-13 13:07:19 +02:00
David Given e770d09dc8 Pascal compiler builds. 2016-08-13 13:03:06 +02:00
David Given 00c67fcc0e Modula-2 runtime library now builds. 2016-08-13 12:43:44 +02:00
David Given 08b7c4aaae The Basic runtime builds now. 2016-08-12 00:24:40 +02:00
David Given 7c60c27302 The Basic compiler works now. 2016-08-12 00:19:51 +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 5e84be70fd Massive ackbuilder refactor --- cleaner and more expressive. Lists 
are automatically flattened (leading to better build files), and the
list and filename functions are vastly more orthogonal.
 2016-08-04 23:51:19 +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 4b3c1a2d07 Add missing (but probably non-working) rpi file. 
--HG--
branch : default-branch
 2016-06-02 12:21:13 +02:00
David Given ff0c78cc78 Merge from default. 
--HG--
branch : dtrg-videocore-branch-branch
 2016-03-13 21:13:09 +01:00
David Given 9f23fbbe6a Allow machines to use cg if they wish. 
--HG--
rename : mach/proto/ncg/build.mk => mach/proto/cg/build.mk
rename : util/ncgg/build.mk => util/cgg/build.mk
 2015-03-23 00:08:51 +01:00
David Given c72eaef8ee Add routine to set the Raspberry Pi clock to 250MHz (loads faster than the default 19.2MHz). 
--HG--
branch : dtrg-videocore
rename : plat/rpi/libsys/pi_user_to_phys.s => plat/rpi/libsys/pi_fast_mode.s
 2013-06-24 23:57:27 +01:00
David Given d94c1c8150 Updated distr files. 
--HG--
branch : dtrg-videocore
rename : mach/i80/.distr => mach/vc4/.distr
rename : plat/cpm/.distr => plat/rpi/.distr
 2013-06-21 23:38:21 +01:00
David Given 2be811bac2 Updated VC4 docs. 
--HG--
branch : dtrg-videocore
 2013-06-21 23:21:08 +01:00
David Given 052dd9bfc0 Actually remember to set the stack pointer on startup. Reduce to stack from 16kB to a much more reasonable 1kB. 
--HG--
branch : dtrg-videocore
 2013-06-20 00:14:55 +01:00
David Given eaf4339cd6 Implement a very crude busy-wait based select() mechanism for consol input. 
--HG--
branch : dtrg-videocore
rename : plat/rpi/include/ack/config.h => plat/rpi/include/sys/select.h
rename : plat/rpi/libsys/time.c => plat/rpi/libsys/select.c
 2013-06-09 22:16:30 +01:00
David Given ed6c4a85d1 Change the size of the SRAM area to 128kB (to reflect reality). 
--HG--
branch : dtrg-videocore
 2013-06-06 00:05:48 +01:00
David Given aacabba165 Apply fix contributed by George Koehler: 
- don't crash if BSS overlaps BDOS
- fix stack initialisation bug
- fix command line argification
 2013-06-02 22:02:15 +01:00
David Given d5a112dbfd Some more termios compatibility options. 
--HG--
branch : dtrg-videocore
 2013-05-30 23:25:22 +01:00
David Given 2054618e75 Add basic termios to the rpi platform to allow echoing/newline translation to be controlled. 
--HG--
branch : dtrg-videocore
rename : plat/rpi/include/unistd.h => plat/rpi/include/termios.h
rename : plat/rpi/libsys/write.c => plat/rpi/libsys/tcgetattr.c
rename : plat/rpi/libsys/write.c => plat/rpi/libsys/tcsetattr.c
 2013-05-30 23:19:55 +01:00
David Given d3e3e72860 Update from trunk. 
--HG--
branch : dtrg-videocore
 2013-05-29 15:03:48 +01:00
David Given ae993b1eb2 Add a crude README. 
--HG--
branch : dtrg-videocore
 2013-05-26 19:54:22 +01:00
David Given 38e4726f5c Boot code now works properly in both kernel and bare-metal mode. 
--HG--
branch : dtrg-videocore
 2013-05-26 19:41:37 +01:00
David Given e01f00e320 Allow reading from the mini UART. Add a check to not touch the UART unless it's been initialised (in case of accidents when running in kernel mode). 
--HG--
branch : dtrg-videocore
 2013-05-26 18:58:54 +01:00
David Given bd9497be77 Renamed the pi-specific functions to be a bit cleaner. 
--HG--
branch : dtrg-videocore
rename : plat/rpi/libsys/phys_to_user.s => plat/rpi/libsys/pi_phys_to_user.s
rename : plat/rpi/libsys/uart.s => plat/rpi/libsys/pi_uart.s
rename : plat/rpi/libsys/user_to_phys.s => plat/rpi/libsys/pi_user_to_phys.s
 2013-05-26 00:22:39 +01:00
David Given e299cc3bcf stdio (output only) now works. 
--HG--
branch : dtrg-videocore
 2013-05-25 23:59:31 +01:00
David Given 6a672d5e96 Heap allocations now works. 
--HG--
branch : dtrg-videocore
 2013-05-25 23:28:47 +01:00
David Given ec25fec145 Build binaries that will run bare metal. Add enough syscall library to init the uart and write text. 
--HG--
branch : dtrg-videocore
rename : plat/rpi/libsys/libsys.h => plat/rpi/libsys/libsysasm.h
rename : plat/rpi/libsys/_sys_rawread.s => plat/rpi/libsys/phys_to_user.s
rename : plat/rpi/libsys/_sys_rawread.s => plat/rpi/libsys/uart.s
rename : plat/rpi/libsys/_sys_rawread.s => plat/rpi/libsys/user_to_phys.s
 2013-05-25 00:35:29 +01:00
David Given 8f338f9b44 Now actually runs on real hardware. 
--HG--
branch : dtrg-videocore
 2013-05-22 22:46:10 +01:00
David Given b5e5df4a63 Allocate a user stack to run code in. 
--HG--
branch : dtrg-videocore
 2013-05-22 18:25:30 +01:00
David Given 6b5316dcfa More typo fixes. 
--HG--
branch : dtrg-videocore
 2013-05-22 00:52:58 +01:00
David Given 72542288cd Adjust bootstrap code to build kernels that work with the mailbox test app. 
--HG--
branch : dtrg-videocore
 2013-05-22 00:16:59 +01:00
David Given 5e9102955c Reworked VC4 relocations and some of the instruction encoding to be actually correct. Now generating what could be real code! 
--HG--
branch : dtrg-videocore
 2013-05-21 23:17:30 +01:00
David Given 1312fe298b Now compiles (incorrectly) the entire libc, libpc, libm2 and libbasic! 
--HG--
branch : dtrg-videocore
 2013-05-21 20:05:26 +01:00
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 877e06ed89 Lots more opcodes including float support. Define float and double to be the 
same thing (as the VC4 seems not to have double-precision float support).

--HG--
branch : dtrg-videocore
 2013-05-21 18:16:30 +01:00
David Given 61bff18082 Added skeleton bootstrap code. 
--HG--
branch : dtrg-videocore
rename : plat/pc86/boot.s => plat/rpi/boot.s
 2013-05-19 23:33:29 +01:00
David Given fc1b3672a3 Reapply bugfix to sbrk() which got dropped during the move from linx386/libsys 
to liblinux. Set errno correctly.
 2013-05-18 13:00:37 +01:00
David Given 32ebc502c8 Skeleton of VideoCore IV support for the Raspberry Pi. 
--HG--
branch : dtrg-videocore
rename : mach/powerpc/as/.distr => mach/vc4/as/.distr
rename : mach/powerpc/as/mach0.c => mach/vc4/as/mach0.c
rename : mach/powerpc/as/mach1.c => mach/vc4/as/mach1.c
rename : mach/powerpc/as/mach2.c => mach/vc4/as/mach2.c
rename : mach/powerpc/as/mach3.c => mach/vc4/as/mach3.c
rename : mach/powerpc/as/mach4.c => mach/vc4/as/mach4.c
rename : mach/powerpc/as/mach5.c => mach/vc4/as/mach5.c
rename : mach/i86/build.mk => mach/vc4/build.mk
rename : mach/powerpc/libem/powerpc.h => mach/vc4/libem/videocore.h
rename : mach/i86/libend/.distr => mach/vc4/libend/.distr
rename : mach/i86/libend/edata.s => mach/vc4/libend/edata.s
rename : mach/i86/libend/em_end.s => mach/vc4/libend/em_end.s
rename : mach/i86/libend/end.s => mach/vc4/libend/end.s
rename : mach/i86/libend/etext.s => mach/vc4/libend/etext.s
rename : mach/powerpc/ncg/.distr => mach/vc4/ncg/.distr
rename : mach/powerpc/ncg/mach.c => mach/vc4/ncg/mach.c
rename : mach/powerpc/ncg/mach.h => mach/vc4/ncg/mach.h
rename : mach/powerpc/ncg/table => mach/vc4/ncg/table
rename : plat/pc86/descr => plat/rpi/descr
 2013-05-17 00:03:38 +01:00
David Given 11377070fd Update distribution files. 
--HG--
branch : dtrg-buildsystem
 2013-05-15 23:46:15 +01:00
David Given e9233b4712 Build ego. 
--HG--
branch : dtrg-buildsystem
rename : util/arch/build.mk => util/ego/build.mk
 2013-05-15 21:14:06 +01:00
David Given d5f0107746 Build the Basic run-time library (after some modernisation). 
--HG--
branch : dtrg-buildsystem
 2013-05-14 16:11:29 +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 81778b603f Merge updates from trunk. 
--HG--
branch : dtrg-buildsystem
 2013-05-13 12:37:27 +01:00