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Author SHA1 Message Date
David Given
f07c6e4d6a Rename branch. 
--HG--
branch : dtrg-videocore-branch-branch
 2015-06-18 23:39:25 +02:00
David Given
171f16d7b8 Rename branch. 
--HG--
branch : dtrg-videocore-branch
 2015-06-18 23:38:50 +02:00
David Given
62cc636f10 Merge. 
--HG--
branch : dtrg-videocore
 2015-03-23 00:15:42 +01:00
David Given
e36d739fa4 Add (largely untested) float/int conversion. 
--HG--
branch : dtrg-videocore
 2013-07-01 13:05:36 +01:00
David Given
8b6951dac0 Fix incorrect offset encoding in lea (sp) instructions. 
--HG--
branch : dtrg-videocore
 2013-06-29 00:35:07 +01:00
David Given
edb174da8d Fix incorrect encoding of 'push lr' and 'pop pc'. 
--HG--
branch : dtrg-videocore
 2013-06-29 00:32:39 +01:00
David Given
29af6f1adb ISA change: clz has been renamed to log2. 
--HG--
branch : dtrg-videocore
 2013-06-27 11:25:50 +01:00
David Given
2b3f95de0b Fix jump range checking in the addcmpb family of instructions. 
--HG--
branch : dtrg-videocore
 2013-06-26 23:32:54 +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
fd2360be0f Ship assembler man pages. 
--HG--
branch : dtrg-videocore
rename : man/8080_as.6 => man/i80_as.6
rename : man/m68k2_as.6 => man/m68020_as.6
 2013-06-21 23:20:50 +01:00
David Given
55be35a68a Add a stub malloc.h. 
--HG--
branch : dtrg-videocore
rename : lang/cem/libcc.ansi/headers/stdlib.h => lang/cem/libcc.ansi/headers/malloc.h
 2013-06-20 00:15:14 +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
bbd4b46850 Fix stack corruption when adjusting SP. Be a bit more rigorous about clearing the pseudostack on branch/labels. 
--HG--
branch : dtrg-videocore
 2013-06-07 21:25:38 +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
3e0123ca03 Fix treatment of out-of-range values in switch csa. 
--HG--
branch : dtrg-videocore
 2013-06-05 23:57:23 +01:00
David Given
86c6fa2f1e Implement NOT... 
--HG--
branch : dtrg-videocore
 2013-05-30 23:50:19 +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
074b42aa97 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
 2013-05-29 21:41:58 +01:00
David Given
69953d016c Add support for snprintf and vsnprintf. Try and make the return value a bit 
more standards-compliant.

--HG--
branch : dtrg-videocore
 2013-05-29 17:10:58 +01:00
David Given
d3e3e72860 Update from trunk. 
--HG--
branch : dtrg-videocore
 2013-05-29 15:03:48 +01:00
David Given
6fff2d45fe 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. 2013-05-29 14:48:51 +01:00
David Given
e0c121d6e6 Use relocation enumerations rather than hard-coded values for relocation types 
(these were causing problems due to the enumeration values having changed).
 2013-05-29 14:11:04 +01:00
David Given
1f36370d87 Implement nop (the C compiler sometimes generates this!). 
--HG--
branch : dtrg-videocore
 2013-05-26 22:54:53 +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
ef25c53c9c Fix bug in ine/dee. 
--HG--
branch : dtrg-videocore
 2013-05-26 18:59:19 +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
366cd10194 Remainders are calculated correctly. printf now works. 
--HG--
branch : dtrg-videocore
 2013-05-26 13:13:58 +01:00
David Given
510888e6d5 .csb now works. 
--HG--
branch : dtrg-videocore
rename : mach/vc4/libem/csa.s => mach/vc4/libem/csb.s
 2013-05-26 13:06:25 +01:00
David Given
6284512b37 Fix erroneous section check (symbols may not have a defined section in pass 1). 
--HG--
branch : dtrg-videocore
 2013-05-26 00:35:15 +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
308d41e083 Added triple-quad load and store (used by the signal stuff). 
--HG--
branch : dtrg-videocore
 2013-05-26 00:22:08 +01:00
David Given
e299cc3bcf stdio (output only) now works. 
--HG--
branch : dtrg-videocore
 2013-05-25 23:59:31 +01:00
David Given
8c21a2ef9b Stop fighting the terrible code and remove the regvar support --- it didn't help much and was a pain. 
--HG--
branch : dtrg-videocore
 2013-05-25 23:58:35 +01:00
David Given
6a672d5e96 Heap allocations now works. 
--HG--
branch : dtrg-videocore
 2013-05-25 23:28:47 +01:00
David Given
3b07fee160 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
 2013-05-25 23:26:10 +01:00
David Given
b6680a48cc Disable register variables. The code is a bit worse, but having two stackable registers makes things much easier to understand. 
--HG--
branch : dtrg-videocore
 2013-05-25 13:31:58 +01:00
David Given
d7efb0a32c Implement .csa. 
--HG--
branch : dtrg-videocore
rename : mach/vc4/libem/dummy.s => mach/vc4/libem/csa.s
 2013-05-25 13:31:27 +01:00
David Given
2ee79ab0b2 Encode comparing branch correctly. 
--HG--
branch : dtrg-videocore
 2013-05-25 13:31:01 +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
472f778342 Don't write out constant data as big-endian! Some other cleanups. 
--HG--
branch : dtrg-videocore
 2013-05-25 00:33:38 +01:00
David Given
98e745d04c Fix awful bug where uint32_t was sometimes defined as a short. 
--HG--
branch : dtrg-videocore
 2013-05-25 00:33:01 +01:00
David Given
98a51732ab Various codegen tweaks. 
--HG--
branch : dtrg-videocore
 2013-05-24 17:04:29 +01:00
David Given
2c7ee27206 Double-quads can be loaded and stored (more) correctly. 
--HG--
branch : dtrg-videocore
 2013-05-22 23:55:23 +01:00
David Given
6cbe6e1c4e Better treatment of sign extension. 
--HG--
branch : dtrg-videocore
 2013-05-22 23:12:48 +01:00
David Given
8f338f9b44 Now actually runs on real hardware. 
--HG--
branch : dtrg-videocore
 2013-05-22 22:46:10 +01:00