David Given
d23d2dd1b3
Loads and stores (except longs, which are difficult) are now loaded with two
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instructions rather than three.
2018-09-18 23:38:37 +02:00
David Given
52ee317878
Fixed some bad mcg ir code generation: only nodes which have been appendir'd
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may be used multiple times.
2018-09-18 23:32:53 +02:00
David Given
692caa2b0a
Add unsigned comparison rules.
2018-09-18 00:19:40 +02:00
David Given
f362d12dee
Add extern declaration which I forget to check in.
2018-09-17 23:59:49 +02:00
David Given
fe177bd688
Add specialist rules for signed integer comparisons; much better code.
2018-09-17 23:53:18 +02:00
David Given
ec0891469f
Array descriptor ranges are inclusive; adjust aar and the tests to check for
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this. All the tests except rotate build now!
2018-09-17 19:34:38 +01:00
David Given
f61500c51b
Fix lar and sar, which were horribly, horribly broken. Add tests.
2018-09-17 18:44:17 +01:00
David Given
abb7e3e105
Fix aar; add test.
2018-09-17 16:59:45 +01:00
David Given
b665efca04
ACK loi 1 and sti 1 load and store unsigned bytes. I think.
2018-09-17 15:03:44 +01:00
David Given
c2dc1e184e
rotate() now generates valid code.
2018-09-17 13:13:39 +01:00
David Given
0202ac8700
Fix bls4.
2018-09-17 12:53:27 +01:00
David Given
1e073e944a
Added cms, and a test for it.
2018-09-17 12:42:10 +01:00
David Given
0b65591972
Add hacky 64-bit comparisons (used by M2).
2018-09-17 12:16:17 +01:00
David Given
15ae171aef
Added a test for set. Fix mips set implementation.
2018-09-17 11:56:15 +01:00
David Given
7efb749003
Set fixes; also add discrete tests for and, ior, xor.
2018-09-14 14:13:35 +01:00
David Given
08b1e8d71b
Make inn work; fix broken 64-bit loads and stores.
2018-09-14 13:48:43 +02:00
David Given
5d0876a30b
Implement a working .trp.
2018-09-14 12:26:27 +02:00
David Given
ba0849c87c
Remove la; turns out that the assembler gets upset if you ask it to
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generate more than one fixup per instruction (I think).
2018-09-14 11:30:15 +02:00
David Given
ac33bdd031
Clang-format before editing.
2018-09-14 09:28:35 +02:00
David Given
c4e3d0903e
Bugfix rck.
2018-09-14 00:38:31 +02:00
David Given
8c0b2f8aee
Fix csa and csb.
2018-09-14 00:15:43 +02:00
David Given
9b0a1c1c10
Make work with clang.
2018-09-14 00:04:25 +02:00
David Given
57338b1991
Fix an incorrect instruction, and incredibly broken li handling.
2018-09-12 23:59:09 +02:00
David Given
ecb3395aba
Converting floats and doubles to integers now works, as much as these ever do
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on MIPS; turns out that it can't (or at least can't in qemu) reliably turn
INT_MIN from a double to an int.
2018-09-12 23:58:48 +02:00
David Given
642956fa2f
mcg now uses dataf4 and dataf8 to emit floating point constants, and so doesn't
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need flt_arith any more. (And also generates them correctly on little-endian
systems.) as now parses numbers properly, doesn't trash memory all over the
place, and can handle negative numbers.
2018-09-12 23:19:32 +02:00
David Given
8105281534
Make sure li works properly when loading fixed up values which end up as 0. Use
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lui rather than li to load high values.
2018-09-12 22:28:40 +02:00
David Given
a8df9721d3
Adding new tokens to the assembler isn't quite as easy as I thought: ensure
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that NUMBERF is stored properly in the temporary file.
2018-09-12 22:27:39 +02:00
David Given
5264db860d
Values are more useful shown in hex.
2018-09-11 23:17:09 +02:00
David Given
8379969b6f
Fix an unsubtle bug where subtractions were done backwards...
2018-09-11 23:16:50 +02:00
David Given
8230ec42ac
Fix a subtle thinko which was causing bits 2-3 of jump targets to be reset.
2018-09-11 23:16:30 +02:00
David Given
b81e060372
Add huge numbers of failing tests.
2018-09-10 23:40:03 +02:00
David Given
0ce368324e
Add the bitset helpers. We now have enough helpers for the tests to run (and
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massively fail).
2018-09-10 23:37:28 +02:00
David Given
2f8fe3ce6e
Do some cleanup; ha16[] and friends can now be used with li.
2018-09-10 23:37:04 +02:00
David Given
3122946a6f
Replaced some incorrect hi16s with ha16s.
2018-09-10 23:21:54 +02:00
David Given
008737ed19
Added some more very untested helper functions.
2018-09-10 23:20:52 +02:00
David Given
a1747ac916
Add the .dataf4 and .dataf8 directives to the assembler --- manually converting
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floats and doubles to bytes is not fun. It might even work!
2018-09-10 22:56:18 +02:00
David Given
53f7de794a
Ansify.
2018-09-10 22:55:05 +02:00
David Given
9733454d8e
Clang-format before editing.
2018-09-10 22:42:30 +02:00
David Given
976fa0efca
Clang-format before editing.
2018-09-10 22:37:04 +02:00
David Given
6275896a11
Clang-format before editing.
2018-09-10 22:25:14 +02:00
David Given
185e910246
Lots more untested helper functions.
2018-09-10 01:08:25 +02:00
David Given
f8f6fa9fc1
Added some more incredibly untested helper functions.
2018-09-10 00:21:16 +02:00
David Given
ee328a0572
Merge from default.
2018-09-09 18:58:07 +02:00
David Given
776e93221f
Thinko fix.
2018-09-09 18:57:44 +02:00
David Given
c769fbec93
Use the correct ELF processor flags; align properly.
2018-09-09 18:57:35 +02:00
David Given
f3bc9ef92a
Call proper Linux system calls proper-like.
2018-09-09 18:57:12 +02:00
David Given
bb15c03339
Remember to preserve input registers if we're going to be reading from them
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after writing to the output register.
2018-09-09 18:53:49 +02:00
David Given
79fd34dac6
Call atexit handlers properly, avoiding a NPE and seg fault every time a
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program exits.
2018-09-09 18:51:00 +02:00
David Given
e88670dad4
Yikes! Turns out that FPU registers are only 32 bits wide, and doubles are
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stored in pairs, just like on the PowerPC!
2018-09-09 18:25:00 +02:00
David Given
ec46643124
Allow the ELF processor flags to be set. Generate MIPS ELF executables, not
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PowerPC ones.
2018-09-09 14:29:34 +02:00
