George Koehler
1faff418ec
Teach some ncg machines to use .data8
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This turns EM `con 5000000000I8` into assembly `.data8 5000000000` for
machines i386, i80, i86, m68020, powerpc, vc4. These are the only ncg
machines in our build.
i80 and i86 get con_mult(sz) for sz == 4 and sz == 8. The other
machines only get sz == 8, because they have 4-byte words, and ncg
only calls con_mult(sz) when sz is greater than the word size. The
tab "\t" after .data4 or .data8 is like the tabs in the con_*() macros
of mach/*/ncg/mach.h.
i86 now uses .data4, like i80. Also, i86 and i386 now use the numeric
string without converting it to an integer and back to a string.
2019-08-13 15:37:05 -04:00
George Koehler
5301cceee3
Declare machine-dependent functions in mach/proto/ncg
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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 a46ee91fd91851
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
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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
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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.
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--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.
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--HG--
branch : dtrg-videocore
2013-06-07 21:25:38 +01:00
David Given
86c6fa2f1e
Implement NOT...
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--HG--
branch : dtrg-videocore
2013-05-30 23:50:19 +01:00
David Given
1f36370d87
Implement nop (the C compiler sometimes generates this!).
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--HG--
branch : dtrg-videocore
2013-05-26 22:54:53 +01:00
David Given
ef25c53c9c
Fix bug in ine/dee.
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--HG--
branch : dtrg-videocore
2013-05-26 18:59:19 +01:00
David Given
366cd10194
Remainders are calculated correctly. printf now works.
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--HG--
branch : dtrg-videocore
2013-05-26 13:13:58 +01:00
David Given
510888e6d5
.csb now works.
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--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).
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--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.
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--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.
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--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.
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--HG--
branch : dtrg-videocore
2013-05-25 00:33:38 +01:00
David Given
98a51732ab
Various codegen tweaks.
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--HG--
branch : dtrg-videocore
2013-05-24 17:04:29 +01:00
David Given
2c7ee27206
Double-quads can be loaded and stored (more) correctly.
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--HG--
branch : dtrg-videocore
2013-05-22 23:55:23 +01:00
David Given
6cbe6e1c4e
Better treatment of sign extension.
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--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).
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--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.
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--HG--
branch : dtrg-videocore
2013-05-22 10:55:13 +01:00
David Given
08c4334224
Typo fixes.
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--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!
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--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
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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.
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--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.
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--HG--
branch : dtrg-videocore
2013-05-20 22:35:12 +01:00
David Given
76ba0bf6b3
First steps towards a code generator.
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--HG--
branch : dtrg-videocore
2013-05-19 23:33:42 +01:00
David Given
32ebc502c8
Skeleton of VideoCore IV support for the Raspberry Pi.
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--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
