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98f8064b83
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3043 Commits

Author SHA1 Message Date
Greg King
98f8064b83 Made the directory functions compatible with the Commander X16's DOS. 
It's directory listing's last line says, "mb free."
 2021-02-15 08:56:31 -05:00
Oliver Schmidt
8551431233 Optimized based on https://github.com/cc65/cc65/pull/1393. 2021-02-05 11:54:07 +01:00
jede
a9dac3b1ef Fix X register for kbhit 2021-02-02 14:09:57 +01:00
jede
b52ee25385 Rollback read.s 2021-02-02 14:09:57 +01:00
jede
f622783ae1 kbhit added for telestrat target 2021-02-02 14:09:57 +01:00
jede
6c59a6254f Now getchar works 2021-02-02 14:09:57 +01:00
Greg King
d90cd11212 Fixed outdated comments. 2020-12-27 18:22:12 -05:00
Sven Michael Klose
9800555bbb Remove stale comments. 2020-12-27 17:54:49 -05:00
Sven Michael Klose
9d62abb7ac Fix comment. 2020-12-27 17:54:49 -05:00
Sven Michael Klose
db31204950 Remove stale comment. 2020-12-27 17:54:49 -05:00
Sven Michael Klose
6201300816 Fold constant calculation. 2020-12-27 17:54:49 -05:00
Sven Michael Klose
f59cb9af06 Use more compact loops. 2020-12-27 17:54:49 -05:00
Sven Michael Klose
99c0815cdb Clear up comments a bit. 2020-12-27 17:54:49 -05:00
Sven Michael Klose
3957310950 Knock off two bytes from getcwd(), cbm_read() and cbm_write(). 2020-12-27 17:54:49 -05:00
Oliver Schmidt
0f4cb443b4 Improved device I/O under DOS 3.3 
Certain scenarios (e.g. not running any Applesoft program at all since booting DOS 3.3) can make DOS 3.3 consider cc65 device input (e.g. getchar()) that reads a CR interpreting the command in the keyboard buffer. Setting the hibyte of the Applesoft currently executed line number to some value <> $FF (beside setting the input prompt to some value <> ']') makes DOS 3.3 understand that we're not in intermediate mode and that therefore I/O not preceded with ctrl-d mustn't be fiddled with (see DOS 3.3 routine at $A65E).
 2020-12-19 19:54:12 +01:00
Polluks
9563541870 crt0 clean-up 2020-11-29 18:08:33 +01:00
Greg King
a0d986faf8 Fixed the horizontal movement of the mouse pointer on platforms with the VIC-II display chip. 
ca65's logical (Boolean) NOT operator was used where bitwise NOT should be used.  The effect was that all sprites were shifted to the left side of a screen when the mouse sprite was put on the left side.
 2020-11-27 21:22:22 -05:00
Oliver Schmidt
79bdc2d51f Set correct prerequisite. 
See https://github.com/cc65/cc65/issues/1318
 2020-11-20 19:19:55 +01:00
Polluks
a0596eae6e Added waitvsync for PET 2020-11-18 10:28:19 +01:00
Oliver Schmidt
0cd8d37613
Fixed comment. 2020-11-17 08:53:48 +01:00
Greg King
5f65252fa6 Added the cputdirect entry point to the cputc() functions in the two Oric libraries. 
It now is available in all libraries that have cputc().
 2020-11-15 11:44:12 -05:00
Greg King
81edc3f582 Updated a comment about Kernal's STATUS variable. 2020-11-08 17:45:54 -05:00
Christian Groessler
39c0abed54 atarixl: fix compilation problem when CHARGEN_RELOC is defined 2020-10-30 15:01:47 +01:00
Greg King
aad17a6f05 Made two GEOS directory functions return NULL if they can't give a valid entry. 2020-10-29 18:06:01 -04:00
Oliver Schmidt
d8e6fa61bb Return NULL on error (or end of directory). 2020-10-29 17:44:19 +01:00
Christian Groessler
3537210674 add waitvsync() for atari and atari5200 2020-10-28 21:12:32 +01:00
Oliver Schmidt
f723147f04 Streamlined clock rate handling. 
* Docs say that CLK_TCK is an obsolete alias of CLOCKS_PER_SEC so there's no point in individual definitions.
* All targets determining the clock rate at runtime can use a common handling.
 2020-10-25 14:06:44 +01:00
Greg King
0f66f7569e Updated the cx16 library to the upstream project's prerelease 38. 2020-10-17 14:48:01 -04:00
Greg King
a25b28a972 Added files to the pet library that support the overlay demo sample program. 
cbm_load() is needed because the Pet/CBM Kernals don't have a LOAD function that can be used by machine code programs.
 2020-10-15 21:22:04 -04:00
Greg King
e72e44d14f Shortenned the VIC-20's cputc() by 17 bytes. 
Changed to a modified table look-up method to convert PetSCII to screen-codes.
 2020-10-13 07:55:20 -04:00
Fabrizio Caruso
61ebe2c34b Indentation in vga.s for gamate 2020-09-24 19:42:34 +02:00
Fabrizio Caruso
6fdb356db7 Simplify Gamate tile redefinition (as already done for PCE) 2020-09-24 19:42:34 +02:00
Greg King
d906204e84 Allowed UPDCRAMPTR to be exported as a constuctor in the VIC-20 library. 2020-09-22 12:31:27 -04:00
Greg King
dc14751954 Exported the direct Kernal entries that were moved from target headers to "cbm_kernal.inc". 2020-09-22 00:04:24 -04:00
Jesse Rosenstock
0482e4d6e4 Fix CRLFs introduced by fe3f267 2020-09-18 08:57:28 +02:00
acqn
fe3f267233 Added new runtime sub bcasta/bcastax/bcasteax opposing to bnega/bnegax/bnegeax. 2020-09-11 13:33:54 +02:00
IrgendwerA8
f54e01781b Tiny optimizations for multiplication. 2020-08-29 16:34:20 +02:00
acqn
63fa9a5a42 Fixed usage of "lvalue-cast" in _scanf implementation. 2020-08-24 17:16:37 +02:00
compyx
81d3dedb41 Move comment block as requested 2020-07-24 15:24:28 -04:00
compyx
294b5d1cf1 C64 soft80 conio: shave off a few bytes and cycles 2020-07-24 15:24:28 -04:00
Oliver Schmidt
77674352f6
Minor style change. 2020-07-21 23:44:36 +02:00
Brad Smith
041f981960
rand() use XOR to break up unwanted pair correlation (#1107) 
* rand() use XOR to break up unwanted pair correlation

This form of rand() cannot return the same value twice in a row.
Two additonal EOR instructions produce a more even distribution of successive pairs.
see comments on #951

* rand.s document purpose of XOR

* suggested srand() optimization: zero fill unnecessary

* test to validate implementation of rand()

* srand() improving behaviour and adding startup test

* srand() with a tail call to rand() for better initial shuffle

* srand() can fall through to rand() instead of tail call
 2020-07-21 23:38:18 +02:00
Greg King
4296cbaf82 Added a 320x200x256 TGI driver to the Commander X16 library. 
Made the mandelbrot sample program handle the X16's 256 colors.
 2020-07-15 17:30:58 -04:00
Greg King
ba0ef5938d Moved the font into a separate module in the library. 
The font can be replaced, at link-time, by a custom file.
 2020-07-15 04:58:32 -04:00
Olli Savia
a02bec11e9 Another code style fix 2020-07-14 22:54:03 -04:00
Olli Savia
b3703de983 Code style fixes 2020-07-14 22:54:03 -04:00
Olli Savia
de5678af5d Added optimizations by dmsc 2020-07-14 22:54:03 -04:00
Olli Savia
e2ec517aae Save another 3 bytes 2020-07-14 22:54:03 -04:00
mrdudz
306f421aa9 Merge branch 'master' of https://github.com/cc65/cc65 2020-07-15 00:17:41 +02:00
mrdudz
6035f1cb75 added missing gotox/gotoy functions 2020-07-15 00:17:11 +02:00