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Author SHA1 Message Date
David Given
f9a3baeaf7 Ugh, typo fix. 2019-02-09 12:25:27 +01:00
David Given
6c146e8c05 Maybe the setup script is somewhere else? 2019-02-09 12:23:42 +01:00
David Given
e62b113b0a Try to install cygwin packages. 2019-02-09 12:17:57 +01:00
David Given
369e3300ac Another try at an AppVeyor build script. 2019-02-09 12:04:42 +01:00
David Given
27b8312598 Add experimental appveyor file. 2019-02-09 00:07:33 +01:00
David Given
9e2d45b301 Rename all files called 'aux.*' to something else; Windows can't handle them. 2019-02-09 00:02:41 +01:00
David Given
857f6a6646
Merge pull request #147 from davidgiven/dtrg-arraysizes 
i80: better and, or, xor, sign extension code.
 2019-02-08 23:19:08 +01:00
David Given
0de5001f82 Make sign extension much less horrible. 2019-02-08 23:16:57 +01:00
David Given
0ac145a0d1 Add tests for simple and, or, and xor; drastically improve the i80 code 
generation for these.
 2019-02-08 22:38:07 +01:00
David Given
996188d20a
Merge pull request #145 from davidgiven/dtrg-arraysizes 
Experimentally use rst 1 to optimise frame variable loads.
 2019-02-08 21:53:56 +01:00
David Given
19f5ee3399 CP/M sbrk now handles overflow correctly. 2019-02-08 21:43:52 +01:00
David Given
a91ab5c599 Somehow the implementation of rst 2 got lost, with hilarious results. Also fix 
some register corruption issues (I hope).
 2019-02-08 21:35:14 +01:00
David Given
22032575c5 Add a 'disassemble' command to the CP/M emulator. 2019-02-08 20:54:44 +01:00
David Given
d319c7d679 Fix swapped bytes in probyte which was causing junk stack frames. 2019-02-08 08:09:55 +01:00
David Given
b47d59aa4a Merge from default. 2019-02-07 23:45:47 +01:00
David Given
1982301639
Merge pull request #146 from davidgiven/dtrg-cpmemu 
Add a CP/M i80 emulator, and enable the cpm tests
 2019-02-07 23:45:08 +01:00
David Given
8876ddcad2 Build the CP/M tests (which got turned off accidentally). Add a disassembler to 
the emulator debugger.
 2019-02-07 23:36:45 +01:00
David Given
80bfbd17b7 Add missing file. 2019-02-07 23:01:10 +01:00
David Given
7473601172 Add the cpm emulator from Cowgol, modified to work with an 8080 emulator rather 
than libz80ex; enable tests for cpm.
 2019-02-07 22:39:57 +01:00
David Given
a5bf2932c8 Add rst 1 to store frame variables. Reduces Star Trek from 42339 to 41821 
bytes.
 2019-02-07 09:31:38 +01:00
David Given
67a9be26d1 Fix warnings. 2019-02-07 09:09:31 +01:00
David Given
9d8ea79c7f rst 1 now takes an eight-bit parameter, not a 16 bit one. Reduces Star Trek 
again from 43205 to 42339 bytes.
 2019-02-07 08:45:20 +01:00
David Given
5ac280026e Experimentally use rst 1 to optimise frame variable loads. Reduces Star Trek 
from 43892 to 43205 bytes.
 2019-02-07 00:06:32 +01:00
David Given
a6b8ae66d7
Merge pull request #144 from davidgiven/dtrg-arraysizes 
i80: use a helper function for cai.
 2019-02-06 21:31:29 +01:00
David Given
08b92153a0 Use a helper function for cai --- only saves two bytes per invocation, but is 
much less embarassing.
 2019-02-06 20:36:23 +01:00
David Given
3d5977b93b
Merge pull request #142 from davidgiven/dtrg-arraysizes 
i80: factor out function prologue boilerplate
 2019-02-06 16:15:53 +01:00
David Given
2b0629f87f Common out boilerplate function prologue code; shrinks Star Trek from 44256 to 
43892 bytes.
 2019-02-06 16:06:07 +01:00
David Given
b77f616598 Run through clang-format before editing. 2019-02-06 11:50:05 +01:00
David Given
73fab341f5
Merge pull request #141 from davidgiven/dtrg-stray 
Install the cpp.ansi man page.
 2019-02-06 11:30:56 +01:00
David Given
7563ac46a7
Merge pull request #140 from davidgiven/dtrg-arraysizes 
CPM: Move the standard ret boilerplate into a helper procedure.
 2019-02-06 07:43:16 +00:00
David Given
02779325ab Move the standard ret boilerplate into a helper procedure, to save a little 
space.
 2019-02-06 08:08:11 +01:00
David Given
24ffbe086a Install the cpp.ansi man page. #82. 2018-12-22 23:47:49 +01:00
David Given
2e71c027a3
Merge pull request #136 from kernigh/kernigh-led-malloc 
Fewer calls to brk() and sbrk()
 2018-11-20 10:52:44 +01:00
George Koehler
33c0573598 Remove code to calculate memory usage with sbrk(). 
In many systems, malloc() can allocate outside the brk area.  The
calculation with sbrk() misses those allocations.  When LLgen or ncgg
reported the memory usage, the value was probably too low.
 2018-11-14 16:13:54 -05:00
George Koehler
1c8434e33a Switch led to malloc() and realloc(). 
Add USEMALLOC and enable it by default.  You can switch back to brk()
by removing `#define USEMALLOC` in memory.c.

USEMALLOC tells the allocator to use malloc() and realloc(), not
brk().  This might help systems where brk() doesn't work, or where
malloc() can allocate outside the brk area.

My build shows no changes in share/ack/examples (except hilo_bas.*).
 2018-11-14 15:15:45 -05:00
George Koehler
4fdfa3177e Fix em_led -u name when memory allocator moves ALLOMODL. 
Option -u was passing an offset from modulptr(0) in ALLOMODL to the
string in argv.  If entername() would move ALLOMODL to make room in
ALLOGCHR, then the offset would become invalid, so the string would
get lost.  This fix copies the string into ALLOMODL.

This was often not a problem because the initial size of ALLOGCHR in
mach.h is probably large enough for -u.  This became a problem when I
caused the initial allocations to fail, and then only because the B
runtime uses -u.
 2018-11-14 12:35:38 -05:00
George Koehler
f09f14cd4d Switch from long to size_t when allocating memory. 
Also move the declarations of `incore` and `core_alloc` to "memory.h".
Also correct SYMDEBUG to SYMDBUG.  (I don't know if SYMDBUG works
because our build system never defines it.)

ind_t becomes an alias of size_t.  ind_t becomes unsigned, so I edit
some code that was using negative ind_t.  Some casts disappear, like
(long)sizeof(...) because the size is already a size_t.  There are
changes to overflow checks.  Callers with a size too big for size_t
must check it before calling the memory allocator.  An overflow check
of BASE + incr in memory.c sbreak() now happens on all platforms, not
only when a pointer is smaller than a long.

My build shows no changes in share/ack/examples (except hilo_bas.*
changing with every build).
 2018-11-14 12:33:25 -05:00
David Given
c55ed2acfa
Merge pull request #135 from kernigh/kernigh-mv-int 
Move int to $(INSDIR)/bin/int
 2018-11-05 21:48:17 +01:00
George Koehler
df855248a0 Move int to $(INSDIR)/bin/int 
If $(INSDIR)/bin is in PATH, then the user can run both ack(1) and
int(1), like

    $ ack -mem22 -o prog prog.c
    $ int prog
 2018-11-05 15:14:29 -05:00
David Given
1b60af4f0b
Merge pull request #133 from davidgiven/dtrg-mips 
Allow constants >INT_MAX in mcg
 2018-09-22 17:30:52 +02:00
David Given
ed91ea4371 When parsing constants which don't fit into an arith, handle overflow properly 
(and don't turn them all into INT_MAX...).
 2018-09-22 12:45:59 +02:00
David Given
c6a1cf8de4
Merge pull request #132 from davidgiven/dtrg-mips 
Teach mcg how to merge pushes
 2018-09-22 11:04:13 +01:00
David Given
79e7636537 Teach the code generator about the zero register and how to efficiently access 
the stack.
 2018-09-22 11:49:13 +02:00
David Given
99fcde69dc Take hreg aliases into account when finding evicted registers and performing 
the register shuffle dance.
 2018-09-22 11:19:50 +02:00
David Given
bbb708717a Add the OPTIONS clause to the mcgg grammar; add an optional pass which converts 
sequences of PUSHes to a single STACKADJUST followed by STOREs. This should
dramatically improve code on stack-unfriendly architectures like MIPS.
 2018-09-22 11:19:00 +02:00
David Given
8fd3e1f5ce
Merge pull request #131 from davidgiven/dtrg-mips 
Add an mcg-based MIPS code generator.
 2018-09-20 23:05:55 +01:00
David Given
985d3dc7d1 Remove some old, hopefully unused PowerPC code. Teach the code generator about 
non-volatile long registers.
 2018-09-20 23:30:38 +02:00
David Given
65a20ce2d6 Fix subtle register corruption bug where aliases weren't taken into account 
when assigning input registers to phis, which could cause the same hreg to be
assigned to two vregs of different types. Also improve tracing.
 2018-09-20 23:24:46 +02:00
David Given
436d50b54c Create correctly sized csa descriptors in the Basic compiler. 2018-09-20 00:49:31 +02:00
David Given
cb20856aea A few more minor optimisations. 2018-09-20 00:39:13 +02:00