David Given [Wed, 5 Jun 2013 23:05:48 +0000 (00:05 +0100)]
Change the size of the SRAM area to 128kB (to reflect reality).
--HG--
branch : dtrg-videocore
David Given [Wed, 5 Jun 2013 22:57:23 +0000 (23:57 +0100)]
Fix treatment of out-of-range values in switch csa.
--HG--
branch : dtrg-videocore
David Given [Thu, 30 May 2013 22:50:19 +0000 (23:50 +0100)]
Implement NOT...
--HG--
branch : dtrg-videocore
David Given [Thu, 30 May 2013 22:25:22 +0000 (23:25 +0100)]
Some more termios compatibility options.
--HG--
branch : dtrg-videocore
David Given [Thu, 30 May 2013 22:19:55 +0000 (23:19 +0100)]
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
David Given [Wed, 29 May 2013 20:41:58 +0000 (21:41 +0100)]
Add some missing libc functions: setenv, unsetenv, strdup.
--HG--
branch : dtrg-videocore
rename : lang/cem/libcc.ansi/stdlib/getenv.c => lang/cem/libcc.ansi/stdlib/setenv.c
rename : lang/cem/libcc.ansi/string/strlen.c => lang/cem/libcc.ansi/string/strdup.c
David Given [Wed, 29 May 2013 16:10:58 +0000 (17:10 +0100)]
Add support for snprintf and vsnprintf. Try and make the return value a bit
more standards-compliant.
--HG--
branch : dtrg-videocore
David Given [Wed, 29 May 2013 14:03:48 +0000 (15:03 +0100)]
Update from trunk.
--HG--
branch : dtrg-videocore
David Given [Wed, 29 May 2013 13:48:51 +0000 (14:48 +0100)]
Attempt to fix 64-bitness error in ashow. Deprecate the structure format macros in h/out.h because they make no sense on 64-bit platforms.
David Given [Wed, 29 May 2013 13:11:04 +0000 (14:11 +0100)]
Use relocation enumerations rather than hard-coded values for relocation types
(these were causing problems due to the enumeration values having changed).
David Given [Sun, 26 May 2013 21:54:53 +0000 (22:54 +0100)]
Implement nop (the C compiler sometimes generates this!).
--HG--
branch : dtrg-videocore
David Given [Sun, 26 May 2013 18:54:22 +0000 (19:54 +0100)]
Add a crude README.
--HG--
branch : dtrg-videocore
David Given [Sun, 26 May 2013 18:41:37 +0000 (19:41 +0100)]
Boot code now works properly in both kernel and bare-metal mode.
--HG--
branch : dtrg-videocore
David Given [Sun, 26 May 2013 17:59:19 +0000 (18:59 +0100)]
Fix bug in ine/dee.
--HG--
branch : dtrg-videocore
David Given [Sun, 26 May 2013 17:58:54 +0000 (18:58 +0100)]
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
David Given [Sun, 26 May 2013 12:13:58 +0000 (13:13 +0100)]
Remainders are calculated correctly. printf now works.
--HG--
branch : dtrg-videocore
David Given [Sun, 26 May 2013 12:06:25 +0000 (13:06 +0100)]
.csb now works.
--HG--
branch : dtrg-videocore
rename : mach/vc4/libem/csa.s => mach/vc4/libem/csb.s
David Given [Sat, 25 May 2013 23:35:15 +0000 (00:35 +0100)]
Fix erroneous section check (symbols may not have a defined section in pass 1).
--HG--
branch : dtrg-videocore
David Given [Sat, 25 May 2013 23:22:39 +0000 (00:22 +0100)]
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
David Given [Sat, 25 May 2013 23:22:08 +0000 (00:22 +0100)]
Added triple-quad load and store (used by the signal stuff).
--HG--
branch : dtrg-videocore
David Given [Sat, 25 May 2013 22:59:31 +0000 (23:59 +0100)]
stdio (output only) now works.
--HG--
branch : dtrg-videocore
David Given [Sat, 25 May 2013 22:58:35 +0000 (23:58 +0100)]
Stop fighting the terrible code and remove the regvar support --- it didn't help much and was a pain.
--HG--
branch : dtrg-videocore
David Given [Sat, 25 May 2013 22:28:47 +0000 (23:28 +0100)]
Heap allocations now works.
--HG--
branch : dtrg-videocore
David Given [Sat, 25 May 2013 22:26:10 +0000 (23:26 +0100)]
Major bugfix where instructions weren't being shrunk correctly. (Turns out there's built-in support for doing this, which I hadn't found.)
--HG--
branch : dtrg-videocore
David Given [Sat, 25 May 2013 12:31:58 +0000 (13:31 +0100)]
Disable register variables. The code is a bit worse, but having two stackable registers makes things much easier to understand.
--HG--
branch : dtrg-videocore
David Given [Sat, 25 May 2013 12:31:27 +0000 (13:31 +0100)]
Implement .csa.
--HG--
branch : dtrg-videocore
rename : mach/vc4/libem/dummy.s => mach/vc4/libem/csa.s
David Given [Sat, 25 May 2013 12:31:01 +0000 (13:31 +0100)]
Encode comparing branch correctly.
--HG--
branch : dtrg-videocore
David Given [Fri, 24 May 2013 23:35:29 +0000 (00:35 +0100)]
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
David Given [Fri, 24 May 2013 23:33:38 +0000 (00:33 +0100)]
Don't write out constant data as big-endian! Some other cleanups.
--HG--
branch : dtrg-videocore
David Given [Fri, 24 May 2013 23:33:01 +0000 (00:33 +0100)]
Fix awful bug where uint32_t was sometimes defined as a short.
--HG--
branch : dtrg-videocore
David Given [Fri, 24 May 2013 16:04:29 +0000 (17:04 +0100)]
Various codegen tweaks.
--HG--
branch : dtrg-videocore
David Given [Wed, 22 May 2013 22:55:23 +0000 (23:55 +0100)]
Double-quads can be loaded and stored (more) correctly.
--HG--
branch : dtrg-videocore
David Given [Wed, 22 May 2013 22:12:48 +0000 (23:12 +0100)]
Better treatment of sign extension.
--HG--
branch : dtrg-videocore
David Given [Wed, 22 May 2013 21:46:10 +0000 (22:46 +0100)]
Now actually runs on real hardware.
--HG--
branch : dtrg-videocore
David Given [Wed, 22 May 2013 20:37:48 +0000 (21:37 +0100)]
Generate adds instructions when a shift-and-add is seen (useful for array indexing).
--HG--
branch : dtrg-videocore
David Given [Wed, 22 May 2013 17:25:30 +0000 (18:25 +0100)]
Allocate a user stack to run code in.
--HG--
branch : dtrg-videocore
David Given [Wed, 22 May 2013 10:02:46 +0000 (11:02 +0100)]
Generate ld rd, (rs) instructions properly.
--HG--
branch : dtrg-videocore
David Given [Wed, 22 May 2013 09:55:13 +0000 (10:55 +0100)]
Optimise direct access to globals, and incrementing and decrementing locals.
--HG--
branch : dtrg-videocore
David Given [Wed, 22 May 2013 08:47:22 +0000 (09:47 +0100)]
Build the Raspberry Pi code.
--HG--
branch : dtrg-videocore
David Given [Tue, 21 May 2013 23:52:58 +0000 (00:52 +0100)]
More typo fixes.
--HG--
branch : dtrg-videocore
David Given [Tue, 21 May 2013 23:44:04 +0000 (00:44 +0100)]
Typo fixes.
--HG--
branch : dtrg-videocore
David Given [Tue, 21 May 2013 23:16:59 +0000 (00:16 +0100)]
Adjust bootstrap code to build kernels that work with the mailbox test app.
--HG--
branch : dtrg-videocore
David Given [Tue, 21 May 2013 23:16:16 +0000 (00:16 +0100)]
Fix signedness problem that was showing up on ARM.
--HG--
branch : dtrg-videocore
David Given [Tue, 21 May 2013 22:17:30 +0000 (23:17 +0100)]
Reworked VC4 relocations and some of the instruction encoding to be actually correct. Now generating what could be real code!
--HG--
branch : dtrg-videocore
David Given [Tue, 21 May 2013 19:05:26 +0000 (20:05 +0100)]
Now compiles (incorrectly) the entire libc, libpc, libm2 and libbasic!
--HG--
branch : dtrg-videocore
David Given [Tue, 21 May 2013 18:18:11 +0000 (19:18 +0100)]
Allow platforms to specify size of long double; seperate alignment from size.
--HG--
branch : dtrg-videocore
David Given [Tue, 21 May 2013 17:16:30 +0000 (18:16 +0100)]
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
David Given [Mon, 20 May 2013 22:27:45 +0000 (23:27 +0100)]
Add a lot more opcodes.
--HG--
branch : dtrg-videocore
David Given [Mon, 20 May 2013 22:27:31 +0000 (23:27 +0100)]
Fix typo.
--HG--
branch : dtrg-videocore
David Given [Mon, 20 May 2013 21:41:27 +0000 (22:41 +0100)]
Remember to clear ackflags on reset.
--HG--
branch : dtrg-videocore
David Given [Mon, 20 May 2013 21:35:12 +0000 (22:35 +0100)]
Major revamp to simplify and use 2op instructions. Better code. Now looks like it may work one day.
--HG--
branch : dtrg-videocore
David Given [Mon, 20 May 2013 18:56:33 +0000 (19:56 +0100)]
Add lea instruction. Fix dependency issues.
--HG--
branch : dtrg-videocore
David Given [Sun, 19 May 2013 22:34:42 +0000 (23:34 +0100)]
Push/pop are the right way round. Don't corrup short-form ALU instructions. Correct encoding of push/pop register ranges.
--HG--
branch : dtrg-videocore
David Given [Sun, 19 May 2013 22:33:42 +0000 (23:33 +0100)]
First steps towards a code generator.
--HG--
branch : dtrg-videocore
David Given [Sun, 19 May 2013 22:33:29 +0000 (23:33 +0100)]
Added skeleton bootstrap code.
--HG--
branch : dtrg-videocore
rename : plat/pc86/boot.s => plat/rpi/boot.s
David Given [Sun, 19 May 2013 22:19:10 +0000 (23:19 +0100)]
Correctly emit constants in some ALU instructions.
--HG--
branch : dtrg-videocore
David Given [Sun, 19 May 2013 22:18:36 +0000 (23:18 +0100)]
Fix warning.
--HG--
branch : dtrg-videocore
David Given [Sun, 19 May 2013 17:40:19 +0000 (18:40 +0100)]
Add compare-and-branch instructions.
--HG--
branch : dtrg-videocore
David Given [Sun, 19 May 2013 12:03:53 +0000 (13:03 +0100)]
Added memory operations that work on fixed up addresses.
--HG--
branch : dtrg-videocore
David Given [Sun, 19 May 2013 11:39:35 +0000 (12:39 +0100)]
Add register offset and postincrement memory operations.
--HG--
branch : dtrg-videocore
David Given [Sat, 18 May 2013 23:56:56 +0000 (00:56 +0100)]
Add most vanilla memory load/store instructions.
--HG--
branch : dtrg-videocore
David Given [Sat, 18 May 2013 12:00:37 +0000 (13:00 +0100)]
Reapply bugfix to sbrk() which got dropped during the move from linx386/libsys
to liblinux. Set errno correctly.
David Given [Sat, 18 May 2013 11:15:53 +0000 (12:15 +0100)]
Apply build system fixes for OpenBSD contributed by George Koehler.
David Given [Fri, 17 May 2013 22:30:49 +0000 (23:30 +0100)]
Add a whole bunch of VC4 opcodes.
--HG--
branch : dtrg-videocore
David Given [Fri, 17 May 2013 21:40:50 +0000 (22:40 +0100)]
Add special relocation type for VC4 jump instructions.
--HG--
branch : dtrg-videocore
David Given [Fri, 17 May 2013 14:28:04 +0000 (15:28 +0100)]
Merge fixes from trunk.
--HG--
branch : dtrg-videocore
David Given [Thu, 16 May 2013 23:04:54 +0000 (00:04 +0100)]
Fix warning.
David Given [Thu, 16 May 2013 23:04:37 +0000 (00:04 +0100)]
Dependency fixes.
David Given [Thu, 16 May 2013 23:03:38 +0000 (00:03 +0100)]
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
David Given [Thu, 16 May 2013 21:02:59 +0000 (22:02 +0100)]
Fix buffer overrun looking up type information for op_lab pseudoops (as
they're not EM opcodes, we shouldn't look them up in em_flags!).
David Given [Thu, 16 May 2013 21:02:00 +0000 (22:02 +0100)]
Correctly generate dependency information.
David Given [Thu, 16 May 2013 13:33:19 +0000 (14:33 +0100)]
Merge in build system changes.
David Given [Thu, 16 May 2013 13:20:58 +0000 (14:20 +0100)]
A few last build tweaks.
--HG--
branch : dtrg-buildsystem
David Given [Wed, 15 May 2013 22:46:15 +0000 (23:46 +0100)]
Update distribution files.
--HG--
branch : dtrg-buildsystem
David Given [Wed, 15 May 2013 22:12:05 +0000 (23:12 +0100)]
Now describe the make-based build system in the README.
--HG--
branch : dtrg-buildsystem
David Given [Wed, 15 May 2013 21:09:28 +0000 (22:09 +0100)]
Fix build error in opt which was causing all code, everywhere, to be broken.
Remember to build opt2 too.
--HG--
branch : dtrg-buildsystem
David Given [Wed, 15 May 2013 20:14:06 +0000 (21:14 +0100)]
Build ego.
--HG--
branch : dtrg-buildsystem
rename : util/arch/build.mk => util/ego/build.mk
David Given [Tue, 14 May 2013 21:24:38 +0000 (22:24 +0100)]
Modula-2 now works.
--HG--
branch : dtrg-buildsystem
rename : lang/pc/build.mk => lang/m2/build.mk
rename : lang/pc/libpc/build.mk => lang/m2/comp/build.mk
rename : lang/pc/libpc/build.mk => lang/m2/libm2/build.mk
David Given [Tue, 14 May 2013 19:47:04 +0000 (20:47 +0100)]
Pascal compiler now runs.
--HG--
branch : dtrg-buildsystem
rename : lang/basic/build.mk => lang/pc/build.mk
rename : lang/cem/cemcom.ansi/build.mk => lang/pc/comp/build.mk
rename : lang/basic/lib/build.mk => lang/pc/libpc/build.mk
David Given [Tue, 14 May 2013 17:01:38 +0000 (18:01 +0100)]
Basic compiler now runs.
--HG--
branch : dtrg-buildsystem
David Given [Tue, 14 May 2013 15:11:29 +0000 (16:11 +0100)]
Build the Basic run-time library (after some modernisation).
--HG--
branch : dtrg-buildsystem
David Given [Tue, 14 May 2013 13:55:29 +0000 (14:55 +0100)]
Add missing dependency.
--HG--
branch : dtrg-buildsystem
David Given [Mon, 13 May 2013 22:26:15 +0000 (23:26 +0100)]
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
David Given [Mon, 13 May 2013 21:12:46 +0000 (22:12 +0100)]
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
David Given [Mon, 13 May 2013 11:37:27 +0000 (12:37 +0100)]
Merge updates from trunk.
--HG--
branch : dtrg-buildsystem
David Given [Mon, 13 May 2013 10:14:10 +0000 (11:14 +0100)]
Fix typo.
--HG--
branch : dtrg-buildsystem
David Given [Sun, 12 May 2013 22:51:55 +0000 (23:51 +0100)]
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
David Given [Sun, 12 May 2013 19:45:55 +0000 (20:45 +0100)]
First milestone of replacing the build system.
--HG--
branch : dtrg-buildsystem
rename : lang/cem/cpp.ansi/Parameters => lang/cem/cpp.ansi/parameters.h
David Given [Fri, 10 May 2013 11:04:21 +0000 (12:04 +0100)]
Change fatal() and error() to use varargs.
David Given [Thu, 9 May 2013 17:14:16 +0000 (18:14 +0100)]
Merge changes from branch: linux68k platform, linuxppc platform (partially
working), and miscellaneous changes to support these.
David Given [Thu, 9 May 2013 14:54:23 +0000 (15:54 +0100)]
Apply George Koehler's aelflod fix for generating non-EM_386 binaries.
Adjust platforms to use it. Fix some bugs in the linux386 platform.
--HG--
branch : dtrg-experimental-powerpc
David Given [Thu, 9 May 2013 10:20:36 +0000 (11:20 +0100)]
Properly error out if something goes wrong rather than ploughing ahead
anyway.
--HG--
branch : dtrg-experimental-powerpc
David Given [Wed, 8 May 2013 23:58:35 +0000 (00:58 +0100)]
Add pmfile for m68020 libend.
--HG--
branch : dtrg-experimental-powerpc
David Given [Wed, 8 May 2013 23:57:47 +0000 (00:57 +0100)]
Add pmfile for m68020 libem.
--HG--
branch : dtrg-experimental-powerpc
David Given [Wed, 8 May 2013 23:56:10 +0000 (00:56 +0100)]
Add missing linux68k platform and liblinux support library.
--HG--
branch : dtrg-experimental-powerpc
David Given [Tue, 7 May 2013 23:48:48 +0000 (00:48 +0100)]
Check in incomplete Linux PowerPC and M68K work.
--HG--
branch : dtrg-experimental-powerpc
George Koehler [Wed, 24 Apr 2013 23:57:23 +0000 (19:57 -0400)]
Some fixes for aelflod and aslod.
Copy rhead() and rsect() from aslod to aelflod, so aelflod can work
for machine with 64-bit long.
In aelflod, fix ELF header so file(1) no longer reports "corrupted
section header size".
David Given [Fri, 14 Dec 2012 11:56:21 +0000 (11:56 +0000)]
Back out erroneous change.
George Koehler [Wed, 24 Oct 2012 17:44:50 +0000 (13:44 -0400)]
Prevent segfault when trying to print an error message.
Use <stdarg.h> to pass arguments correctly, as ack/util/util.c
already uses <stdarg.h> the same way.
David Given [Thu, 27 Sep 2012 10:32:40 +0000 (11:32 +0100)]
Change from using platform-specific types to stdint platform-independent types
when reading the structure header.
public / ack.git / log