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Author SHA1 Message Date
George Koehler 5301cceee3 Declare machine-dependent functions in mach/proto/ncg 
This breaks all machines because the declared return type void
disagrees with the implicit return type int (when I compile mach.c
with clang).  Unbreak i386, i80, i86, m68020, powerpc, vc4 by adding
the return types to mach.c.  We don't build any other machines; they
are broken since commit a46ee91 (May 19, 2013) declared void prolog()
and commit fd91851 (Nov 10, 2016) declared void mes(), with both
declarations in mach/proto/ncg/fillem.c.

Also fix mach/vc4/ncg/mach.c where type full is long, so fprintf()
must use "%ld" not "%d" to print full nlocals.
 2017-11-13 14:23:44 -05:00
David Given fd91851005 Add enough return types to the K&R C that the ACK builds (on Linux) using clang 
now.
 2016-11-10 22:04:18 +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 e36d739fa4 Add (largely untested) float/int conversion. 
--HG--
branch : dtrg-videocore
 2013-07-01 13:05:36 +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 86c6fa2f1e Implement NOT... 
--HG--
branch : dtrg-videocore
 2013-05-30 23:50:19 +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 ef25c53c9c Fix bug in ine/dee. 
--HG--
branch : dtrg-videocore
 2013-05-26 18:59:19 +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 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 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 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 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 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 7537c85e0a Generate adds instructions when a shift-and-add is seen (useful for array indexing). 
--HG--
branch : dtrg-videocore
 2013-05-22 21:37:48 +01:00
David Given 9e556d8b7b Optimise direct access to globals, and incrementing and decrementing locals. 
--HG--
branch : dtrg-videocore
 2013-05-22 10:55:13 +01:00
David Given 08c4334224 Typo fixes. 
--HG--
branch : dtrg-videocore
 2013-05-22 00:44:04 +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 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 6cdea73e84 Add a lot more opcodes. 
--HG--
branch : dtrg-videocore
 2013-05-20 23:27:45 +01:00
David Given 970f2bae62 Major revamp to simplify and use 2op instructions. Better code. Now looks like it may work one day. 
--HG--
branch : dtrg-videocore
 2013-05-20 22:35:12 +01:00
David Given 76ba0bf6b3 First steps towards a code generator. 
--HG--
branch : dtrg-videocore
 2013-05-19 23:33:42 +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