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64 commits

Author SHA1 Message Date
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
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
David Given
b9b808e01a 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
 2013-05-09 15:54:23 +01:00
David Given
8d0261473d Add missing linux68k platform and liblinux support library. 
--HG--
branch : dtrg-experimental-powerpc
 2013-05-09 00:56:10 +01:00
David Given
c93cb69959 Check in incomplete Linux PowerPC and M68K work. 
--HG--
branch : dtrg-experimental-powerpc
 2013-05-08 00:48:48 +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
7292b538bc Added support for remove() and unlink(). 2010-09-27 20:44:49 +00:00
dtrg
085f346f8c Fixed definitions of O_* flags. 2010-08-20 19:27:09 +00:00
dtrg
a0c67da261 Changed to actually work. (On modern Linux systems the old version just 
crashes. On old Linux systems it apparently only worked by accident.)
 2010-08-06 17:06:31 +00:00
dtrg
54ce3f451b Configured distr system for the 6.0pre3 release. 2007-04-29 23:09:24 +00:00
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