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Author SHA1 Message Date
David Given 25b6712e63 Rework all the ackbuilder scripts not to use wildcards, because we can't expand 
them without luaposix, which isn't available (easily) on OSX or Windows.
 2022-07-14 23:57:54 +02:00
George Koehler 7ab4794a05 Reduce clang warnings from ncg 
If a .c file included "types.h" before "mach.h", then it missed the
declaration of mach_option().  Fix by adding "xmach.h".

Fix mach/powerpc/ncg/mach.h and mach/vc4/ncg/mach.h to use the correct
type in their printf() format strings.
 2019-10-30 18:36:55 -04:00
George Koehler a434749fd9 Widen valu_t in the assembler to 64 bits. 
Most machines had undefined valu_t and redefined it to a different
type.  Edit mach/*/as/mach0.c to remove such redefinitions, so the
next change to valu_t will affect all machines.

Edit mach/proto/as/comm0.h to change valu_t to int64_t, and add
uvalu_t and uint64_t.

Remove int64_t y_valu8 from the yacc %union, now that valu_t y_valu
can hold 64 bits.  Replace y_valu8 with y_valu.  The .data8 pseudo
becomes less special; it now accepts absolute expressions.

This change simplifies the assembler and seems to have no effect on
the assembled output.  Among the files in share/ack/examples, the only
changes are in hilo_bas.* and startrek_c.linuxppc, but those files
seem to change whenever I rebuild them.
 2019-10-04 18:58:56 -04:00
George Koehler 1faff418ec Teach some ncg machines to use .data8 
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
carl 9bb69bbb98 Fix several compiler warnings by adding braces 2019-05-14 23:21:19 +08:00
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 612e38f1c6 Remove the old make-based build system, plus some big chunks of horribly 
obsolete protomake build system.
 2016-09-02 22:17:51 +02:00
David Given 204f932ed2 Raspberry Pi backend now builds. 2016-08-20 12:40:13 +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 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 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 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 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 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 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 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 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 cdce394b6c Generate ld rd, (rs) instructions properly. 
--HG--
branch : dtrg-videocore
 2013-05-22 11:02:46 +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 f904465e9c Fix signedness problem that was showing up on ARM. 
--HG--
branch : dtrg-videocore
 2013-05-22 00:16:16 +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 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 d6565f4d5b Fix typo. 
--HG--
branch : dtrg-videocore
 2013-05-20 23:27:31 +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 5082b2a5d7 Add lea instruction. Fix dependency issues. 
--HG--
branch : dtrg-videocore
 2013-05-20 19:56:33 +01:00
David Given 11890026db 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
 2013-05-19 23:34:42 +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 80f85001fa Correctly emit constants in some ALU instructions. 
--HG--
branch : dtrg-videocore
 2013-05-19 23:19:10 +01:00