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3529 Commits

Author SHA1 Message Date
Bob Andrews a372ead4de
Merge pull request #2334 from carlo-bramini/fix-sim65-1 
[SIM65] Support undocumented opcodes for 6502
 2024-03-10 00:37:18 +01:00
Colin Leroy-Mira 86317711e0 IIgs SCC: Rework branches to X-indexed variables 
and general cleanup/commenting
 2024-02-23 01:20:47 +01:00
Colin Leroy-Mira 8b71fafb84 IIgs SCC: Allow choosing 115200bps as the card allows it 
Of course, that won't work full speed with the standard
IRQ-based RX. But that will allow users to setup the port
at this speed without duplicating the setup part of the
code. Up to them to add hooks to disable IRQs and read
directly in a tight asm loop.
 2024-02-23 01:20:47 +01:00
Colin Leroy-Mira 3fd78208ba Disable IRQ if opening at 115200 bps 2024-02-19 19:31:47 +01:00
Colin Leroy-Mira 7a12399b39 Allow choosing 115200bps as the card allows it 
Of course, that won't work full speed with the
standard IRQ-based RX. But that will allow users
to setup the port at this speed without duplicating
the setup part of the code. Up to them to add hooks
to disable IRQs and read directly in a tight asm
loop.
 2024-02-19 19:31:47 +01:00
Alex Thissen 7d6f3d24d4 Changed sta (ptr1,x) to sta (ptr1) 
Reset serial status on ser_close
Fixed error for saving serial state
 2024-02-11 23:12:27 +00:00
Alex Thissen 8b172e05bc Applied optimization as per review 42Bastian 2024-02-11 20:59:08 +00:00
Alex Thissen 1deb9e52ae Replaced last literal value for SERCTL 2024-02-11 15:46:23 +00:00
Alex Thissen acff429eb8 Added redeye check for SER_HS_SW handshake 2024-02-11 15:33:22 +00:00
Alex Thissen 6cf8ee8eb5 Removed baud rates from 150 and lower. 
Fixed tab
Replaced uploader references to SERIAL_INTERRUPT
 2024-02-10 23:19:05 +00:00
Alex Thissen 65bce9ecde Implemented mark and space checks. 2024-02-10 23:19:04 +00:00
Alex Thissen 014f85f226 Fixed baud rates 2024-02-10 23:19:04 +00:00
Alex Thissen 788ae82d30 Fixes to serial driver implementation 2024-02-10 23:19:02 +00:00
Carlo Bramini b04d79b1da [SIM65] Support undocumented opcodes for 6502 
This PR is mostly a complete rewrite of the emulator for 6502/65c02 opcodes.
It provides an easier to maintain implementation of the instructions, by using few macros rather than having hand-written code for each function.
All undocumented, previously missing opcodes for 6502 are also implemented.
The patch also includes a detailed documentation of those opcodes, for reference to developers.
This PR should fix one of the milestones listed here for the next version of CC65:

https://github.com/cc65/wiki/wiki/Before-the-next-release
 2024-02-08 12:13:17 +01:00
Bob Andrews a06431a8f9
Merge pull request #2402 from colinleroy/a-bit-of-65c02-optimisations 
a BIT of 65C02 optimisations
 2024-02-02 21:58:04 +01:00
Bob Andrews eb503cc542
Merge pull request #2390 from colinleroy/implement-shifts-by-7 
Implement aslax7/shlax7/asrax7/shrax7
 2024-02-02 20:17:48 +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
Colin Leroy-Mira 7d7cf2d1e0 Implement aslax7/shlax7/asrax7/shrax7 2024-01-29 07:59:11 +01:00
Bob Andrews 51b946bf25
Merge pull request #2387 from colinleroy/sim65-implement-remove 
Implement __sysremove for sim65
 2024-01-28 16:53:29 +01:00
Colin Leroy-Mira 0dd7b0c3a5 Implement __sysremove for sim65 
This will allow using unlink()/remove() in sim65 programs
Use it to unlink fgets' test output file
 2024-01-28 13:58:57 +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 a2d722639f
Merge pull request #2385 from polluks/master 
Fixed comment
 2024-01-24 21:17:19 +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
Stefan 34f37c873e
Fixed comment 2024-01-24 16:32:45 +01:00
Bob Andrews ebf43ddb05
Merge pull request #2379 from colinleroy/add-return-minus-1-helper 
add a return -1 helper
 2024-01-24 15:53:19 +01:00
Colin Leroy-Mira f0b5b02966 Swap in LC before destructors, ROM after 2024-01-24 12:28:57 +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
Colin Leroy-Mira 3e01ac9b04 Fix malloc and realloc overflow 
If user requests a size >= 65532, adding the heap admin size
overflows size. Fixes #2358.
 2024-01-24 09:54:54 +01:00
Bob Andrews 57e65a6bf6
Merge pull request #2348 from colinleroy/time-functions-pass-2 
Convert more time functions to asm
 2024-01-23 23:45:10 +01:00
Colin Leroy-Mira 2ba176372e Add beep for apple2 2024-01-23 23:04:50 +01:00
Bob Andrews 7a7e98d799
Merge pull request #2371 from alexthissen/lynx-upload 
Lynx upload fixes for IRQ and configuration
 2024-01-22 15:50:40 +01:00
Colin Leroy-Mira b23a7ec407 Save two bytes in pushax and popptr1 
It's not because Y must equal zero on rts that we should'nt spare one byte
and one cycle.
 2024-01-19 21:14:47 +01:00
Alex Thissen ad90a3a421 Replaced references to __BLOCKSIZE__ with __BANK0BLOCKSIZE__ 2024-01-18 18:57:57 +00:00
Alex Thissen 2e56dcc521 Fix for mising import 2024-01-18 18:13:39 +01:00
Alex Thissen acce24fedc Switched to __BANK0BLOCKSIZE__ instead of __BLOCKSIZE__ to make current lynx config files work 2024-01-18 18:13:02 +01:00
Alex Thissen d906748691 Fix uploader implementation to reset IRQ bit for timer 4 (serial) interrupt 2024-01-18 17:37:09 +01:00
Colin Leroy-Mira 166a4b25f7 Apple2: implement sleep using MONWAIT 
Also publish detect_iigs(), set_iigs_speed() and get_iigs_speed(). Refactor to only store one ostype variable.
 2024-01-18 16:17:10 +01:00
Colin Leroy-Mira 10282a9b74 Rewrite asctime() in assembler (-7 bytes) 2024-01-18 09:09:38 +01:00