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502 Commits

Author SHA1 Message Date
Daniel Gimpelevich
6be0731247 Fix uncatalogued name clash with libsrc/runtime/leave.s 
Even though these labels are not exported, they can show up in linker
maps and thus break o65 modules.
 2025-09-29 18:22:53 -07:00
Kugel Fuhr
93b94d314a Implement a simple flow analysis. Tracks control flow of all statements with 
the exception of "switch". Outputs warnings for unreachable code. Tracks also
"return" but doesn't currently make use of this information.
 2025-07-17 15:39:45 +02:00
Colin Leroy-Mira
6604c5ce92 Make strndup smaller, safer, faster 
First implementation was doing:
- strdup (without checking result!)
- strlen
- terminate
- realloc

New one does:
- malloc to shortest +1
- strncpy
- terminate
 2025-07-05 12:11:40 +02:00
Bob Andrews
fd973cd544 Merge pull request #2769 from colinleroy/add-strndup 
Add strndup
 2025-07-04 17:01:28 +02:00
Colin Leroy-Mira
90e1ac374b Add strndup 
char* __fastcall__ strndup (const char* S, size_t maxlen);
 2025-07-03 23:46:28 +02:00
Kugel Fuhr
59e7158512 Make the CPU_xxx constants from cpu.mac internal to the assembler and replace 
cpu.mac by a file that just emits a warning when used.
 2025-07-01 08:29:42 +02:00
Kugel Fuhr
c72126e68f Changed most of the library sources to use .CAP instead of .CPU. 2025-07-01 08:04:00 +02:00
Bob Andrews
54a2410b5a Merge pull request #2674 from GorillaSapiens/c_sp 
rename "sp" to "c_sp", avoid conflict with 4510 opcodes
 2025-06-24 17:44:13 +02:00
Gorilla Sapiens
0489098517 restore comment alignment 2025-06-22 21:34:41 +00:00
mrdudz
55742003d6 add some more comments 2025-06-17 21:40:04 +02:00
Gorilla Sapiens
b6f42f9ab2 changed "spc" to "c_sp" 2025-06-04 06:37:59 +00:00
Gorilla Sapiens
3d118dc6e5 rename "sp" to "spc", avoid conflict with 4510 opcodes 2025-06-04 02:06:40 +00:00
Bob Andrews
7621fb91f0 Merge pull request #2642 from GorillaSapiens/ca65_charset_translations 
C style character translation in ca65
 2025-05-24 17:23:19 +02:00
Colin Leroy-Mira
cfbfaa559c Add ZX02 and LZSA (1,2) decompressors 2025-05-13 21:26:47 +02:00
Gorilla Sapiens
1b85ab6985 C style character translation in ca65 2025-05-06 03:02:18 +00:00
Bob Andrews
b1713e4c96 Merge pull request #2627 from colinleroy/add-lz4-C-ref 
Add decompress_lz4 C implementation as comment
 2025-05-02 20:23:09 +02:00
Colin Leroy-Mira
caa66aea95 Add decompress_lz4 C implementation as comment 
For reference.
 2025-04-07 21:01:05 +02:00
Stefan A. Haubenthal
774e275965 Fixed many comments 2025-03-24 20:52:55 +01:00
Colin Leroy-Mira
fb63a839bf Optimize LZ4 decompressor 
Use a walking out pointer instead of &out[written]. This
simplifies the code by 27 bytes and spares 15% cycles.
Tested with both the unit test and code uncompressing
10kB of data.

Renamed the labels for legibility.
 2025-03-14 16:33:13 +01:00
Colin Leroy-Mira
adfb42bfa6 Rewrite rewind in assembly 2025-01-01 14:32:07 +01:00
Sidney Cadot
8ee93f7e5f Fixed indentation inside comment. 2024-12-18 09:04:20 +01:00
Sidney Cadot
ceac9f87ba Temporary fix for fgets() not using target-specific newline. 
This patch provides a temporary fix for the issue where the fgets()
function did not use the target-specific newline character to
decide if it has reached the end of the line. It defaulted to the
value $0a, which is the newline character on only some targets.
The Atari, for example, has newline character $9b instead.

This patch is ugly, because the ca65 assembler that is used for
fgets doesn't currently accept C-type character escape sequences
as values. Ideally we'd be able to write:

		cmp #'\n'

And this would end up being translated to a compare-immediate
to the target-specific newline character.

Since that is impossible, this patch substitutes the equivalent,
but ugly, code:

		.byte $c9, "\n"

This works because $c9 is the opcode for cmp #imm, and the "\n"
string /is/ translated to the platform-specific newline character,
at least when the 'string_escapes' feature is enabled.
 2024-12-18 07:44:52 +01:00
Stefan
0f6b427170 Update strftime.c 2024-12-09 18:37:02 +01:00
Kugel Fuhr
efa2020d93 Improved/fixed the time() function: 
- When the underlying clock_gettime function returned an error, the value
  returned via *timep was wrong.
- Reduced code size by 7 bytes.
- Don't suck in ldeaxi.
 2024-09-12 09:14:57 +02:00
Bob Andrews
31a0d5cc40 Merge pull request #2503 from colinleroy/master 
Optimize stpcpy's size and speed
 2024-09-08 16:17:14 +02:00
coronax
838c8b48b7 Set the clock id to CLOCK_REALTIME when calling clock_gettime. 
Previously, time() allocated stack space for the clock id argument, but didn't actually set a value.
 2024-09-07 23:27:54 -05:00
Colin Leroy-Mira
55d3a6ea39 Optimize stpcpy's size and speed 2024-09-07 21:24:53 +02:00
Sven Michael Klose
aed94d2dae Fix code style. 
Have type, function name and argument declaration on a single line.
 2024-07-16 01:33:48 +02:00
Sven Michael Klose
581b79e0b9 Add stpcpy(). 
Like strcpy() but returning pointer to ending zero of copied string.
 2024-07-07 14:04:49 +02:00
Colin Leroy-Mira
a823d90082 Separated versions 2024-04-19 07:57:47 +02:00
Colin Leroy-Mira
71d82ab5d9 Use common naming scheme for tolowerdirect 2024-03-22 17:19:26 +01:00
Colin Leroy-Mira
0c681b42ef Factorize to save 20 bytes 2024-03-19 18:07:17 +01:00
Colin Leroy-Mira
b5d259bafb Implement strcasestr as part of strstr 2024-03-18 19:52:04 +01:00
Colin Leroy-Mira
82165c1a77 Implement strcasestr 2024-03-18 19:51:50 +01:00
Colin Leroy-Mira
1fab179cb4 a BIT of 65C02 optimisations 
Use BIT immediate instead of AND when reloading A is required
afterwards.
Add an fread unit test as the optimisation touches fread.
Sprinkle a few zero page indexed while we're at it.
 2024-02-02 19:45:49 +01:00
Colin Leroy-Mira
afd8ee627e Remove useless branching code in fgets 2024-01-30 19:52:48 +01:00
Colin Leroy-Mira
2b97735d5d Factorize file pointer check 2024-01-30 19:40:28 +01:00
Colin Leroy-Mira
1a5a7d67a7 Rewrite fputc in assembly 
-36 bytes, -12% cycles
 2024-01-30 17:19:13 +01:00
Colin Leroy-Mira
ba36071022 Rewrite fputs in assembly 
-28 bytes, -1% cycles
 2024-01-30 17:12:52 +01:00
Bob Andrews
8682095f9f Merge pull request #2384 from colinleroy/asm-realloc 
Rewrite realloc in asm
 2024-01-27 00:28:17 +01:00
Colin Leroy-Mira
aa6f850b8d Rewrite gets in assembler 
+19 bytes if used alone, because it pulls in fgets, but as code is
factorized, -128 bytes in programs using both fgets and gets.
 2024-01-26 20:29:17 +01:00
Colin Leroy-Mira
a8b870555e Rewrite realloc in asm 
-80 bytes, -39% cycles
 2024-01-26 20:25:59 +01:00
Bob Andrews
65937684a0 Merge pull request #2380 from colinleroy/asm-fgetc 
Rewrite fgetc in asm
 2024-01-26 20:12:41 +01:00
Bob Andrews
ba6f9f5d3f Merge pull request #2381 from colinleroy/asm-fgets 
Rewrite fgets in asm
 2024-01-26 19:36:57 +01:00
Colin Leroy-Mira
476591e8b7 Rewrite fgetc in asm 
-82 bytes, -20% cycles
 2024-01-25 09:13:39 +01:00
Bob Andrews
ee3a542539 Merge pull request #2383 from colinleroy/pmemalign-size-opt 
Optimize -36 bytes out of posix_memalign
 2024-01-24 21:26:50 +01:00
Bob Andrews
9ba270d97b Merge pull request #2378 from colinleroy/fix-overflow-in-malloc-and-realloc 
Fix malloc and realloc overflow
 2024-01-24 21:15:31 +01:00
Colin Leroy-Mira
b87df9e1c6 Optimize -36 bytes out of posix_memalign 
And add a unit test
 2024-01-24 10:23:53 +01:00
Colin Leroy-Mira
1f820d0ae8 Rewrite fgets in asm 
-104 bytes, -1% cycles
 2024-01-24 10:16:26 +01:00
Colin Leroy-Mira
5d49fde788 add a return -1 helper 2024-01-24 09:58:09 +01:00