Commit graph

23 commits

Author SHA1 Message Date
carl a6120c220e Fix buffer overflow issue. 2019-03-25 00:13:42 +08:00
David Given 642956fa2f mcg now uses dataf4 and dataf8 to emit floating point constants, and so doesn't
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 a8df9721d3 Adding new tokens to the assembler isn't quite as easy as I thought: ensure
that NUMBERF is stored properly in the temporary file.
2018-09-12 22:27:39 +02:00
David Given a1747ac916 Add the .dataf4 and .dataf8 directives to the assembler --- manually converting
floats and doubles to bytes is not fun. It might even work!
2018-09-10 22:56:18 +02:00
David Given 6275896a11 Clang-format before editing. 2018-09-10 22:25:14 +02:00
George Koehler ac4cbd735e Use libc assert(); fix dependencies; unbreak isduo().
Switch from custom assert() to libc assert() in mach/proto/as.
Continue to disable asserts if DEBUG == 0.

This change found a problem in the build system; comm2.y was missing
depedencies on comm0.h and comm1.h.  Add the missing dependencies to
the cppfile rule.  Allow the dependencies by modifying cppfile in
first/build.lua to act like cfile if t.dir is false.

Now that comm2.y gets rebuilt, I must fix the wrong prototype of
yyparse() in comm1.h.

I got unlucky as induo() in comm5.c was reading beyond the end of the
array.  It found an operator "= " ('=' then space) in the garbage, so
it returned a garbage token number, and "VAR = 123" became a syntax
error.  Unbreak induo() by terminating the array.
2017-11-11 16:09:05 -05:00
George Koehler d347207e60 Add more prototypes in mach/proto/as
Change "register i;" to "int i;" to so clang stops warning about
implicit int.  Use function prototypes so clang stops warning about
implicitly declared functions.
2017-11-10 23:30:46 -05:00
George Koehler f705339f86 Allow more tokens in the assembler.
I need this so I can add more %token lines to mach/powerpc/as/mach2.c

The assembler's tempfile encoded each token in a byte.  This only
worked with tokens 0 to 127 and 256 and 383.  If a token 384 or higher
existed, the assembler stopped working.  I need tokens 384 and higher.

I change the token encoding to a 2-byte little-endian integer.  I also
change a byte in the string encoding.
2017-01-17 22:41:11 -05:00
George Koehler ba2a03705e Use prototypes in mach/proto/as/comm5.c
Order the function prototypes in comm1.h to match the order of the
function definitions in *.c files.
2017-01-17 16:41:29 -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
ceriel 1db6a3029b Header --> Id 1994-06-24 14:02:31 +00:00
ceriel 468d98750c Fixed problem with relocation,
added curr_token, so that parser can access token
1993-02-08 13:01:30 +00:00
ceriel 1ed0f8180f hash() now returns same value on 2-byte and 4-byte machines 1991-02-04 14:25:58 +00:00
ceriel 0b26bdf5fb Some changes in search for more efficiency 1991-01-11 14:20:59 +00:00
ceriel e0ff37aa6e support for long strings 1990-08-01 14:30:45 +00:00
ceriel b45706ce7a delinted a little 1989-01-19 16:41:55 +00:00
ceriel 3edf9486c9 fixed to not accept dots in numbers 1988-04-22 18:34:22 +00:00
ceriel a1ae336247 first arg to putc must be int or char, not long 1987-09-01 18:31:42 +00:00
ceriel 16c73e6654 use malloc instead of sbrk 1987-08-06 13:04:20 +00:00
ceriel 6eaf182cee Added Rcs Id 1987-03-10 11:49:39 +00:00
ceriel 815166e421 Added copyright notice 1987-03-09 19:15:41 +00:00
ceriel e188fe0956 Version that uses libobject.a 1986-12-01 15:41:29 +00:00
keie 772b64fabd *** empty log message *** 1985-04-12 16:56:43 +00:00