cf470dd0df
Update sieve.c
2024-12-09 18:26:00 +01:00
5f2c5b58ab
Update overlaydemo.c
2024-12-09 18:25:34 +01:00
5d2730f4b4
Update multidemo.c
2024-12-09 00:44:44 +01:00
8b008052cb
Update mandelbrot.c
2024-12-09 00:43:35 +01:00
26e6717102
Update mandelbrot.c
2024-12-09 00:43:05 +01:00
316ee4ad5b
Update overlay-demo.c
2024-12-09 00:42:28 +01:00
be6819ca1f
Update plasma.c
2024-12-09 00:41:03 +01:00
3612d90c8e
Update fire.c
2024-12-09 00:40:41 +01:00
162bc6b305
Merge pull request #2553 from sidneycadot/fix-remove-zregister
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Sim65: removed ZR register from CPURegs type.
2024-12-03 02:15:50 +01:00
84c4ea062d
Sim65: removed ZR register from CPURegs type.
2024-12-03 01:17:44 +01:00
a55d328e78
Merge pull request #2549 from clydeshaffer/debuginfo_doc_port
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Port Debug Info page from Wiki to Docs
2024-12-02 00:30:24 +01:00
c0a4942b5d
Merge pull request #2550 from sidneycadot/fix-bit-imm
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Fixed behavior of the 65C02 "BIT #imm" instruction in sim65.
2024-12-02 00:28:07 +01:00
918c39cbeb
Merge pull request #2548 from sidneycadot/fix-branch-timings
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Fixed clock-cycle timing of branch (Bxx) instructions.
2024-12-02 00:25:54 +01:00
3895caae90
Style fix
2024-12-02 00:25:24 +01:00
79e26c1bc5
Merge pull request #2547 from sidneycadot/fix-jmp-ind
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Fixed the behavior of JMP (ind) in sim65 when it runs with the 6502X CPU type.
2024-12-02 00:21:31 +01:00
1ce8225091
Merge pull request #2551 from sidneycadot/fix-interrupts-dflag
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Fixed wrong clearing of D-flag on interrupts for sim65 with 6502X CPU.
2024-12-02 00:19:55 +01:00
e26c17fd50
Fixed wrong clearing of D-flag on interrupts for sim65 with 6502X CPU type.
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The 65C02 clears the D flag on interrupts while the 6502 does not.
The old code cleared the D flag also for the 6502X CPU type, which
was incorrect.
2024-12-01 09:59:10 +01:00
1d9d056da5
Fixed behavior of the 65C02 "BIT #imm" instruction.
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The BIT #imm instruction behaves differently from the BIT instruction with other
addressing modes, in that it does /not/ set the N and V flags according to the
value of its operand. It only sets the Z flag, in accordance to the value of
(A & operand).
This is corroborated in two ways:
- The 65x02 test suite;
- Documentation about BIT #imm such as http://www.6502.org/tutorials/65c02opcodes.html
This patch implements the correct behavior for BIT with immediate addressing.
The patched version passes the 65x02 test suite for 65C02 opcode 0x89.
2024-11-30 23:46:19 +01:00
3fdb1a516c
small formatting fixes, and a section rename to get it to build
2024-11-30 16:56:25 -05:00
12f6340878
Add section to ld65 doc about debug info
2024-11-30 16:09:50 -05:00
709d71ef70
Fixed clock-cycle timing of branch (Bxx) instructions.
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Branch instructions, when taken, take three or four cycles,
depending on whether a page is crossed by the branch.
The proper check to determine whether the extra cycle must be added
is the target address of the branch vs the address immediately
following the branch.
In the former version of the BRANCH instruction handler, the target
address was incorrectly checked vs the address of the branch instruction
itself.
The corrected behavior was verified against a real 6502 (Atari) and
the 65x02 testsuite.
2024-11-30 19:56:31 +01:00
2abd66ea0c
Fixed the behavior of the JMP (ind) instruction in sim65 when it runs with the "6502X" CPU type.
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The JMP (ind) bug is present in the 6502 which is emulated by both the "6502" and "6502X"
emulation targets of sim65; specifically, the OPC_6502_6C handler. In the old code, the
bug-exhibiting code was not executed when the target was set to 6502X, which is incorrect.
the patch removes the (CPU == CPU_6502) check, which made no sense.
The JMP (ind) bug was actually fixed in the 65c02. Indeed, the OPC_65C02_6C opcode handler
has code that implements the 'right' behavior.
2024-11-30 12:36:35 +01:00
05a653d3f9
Merge pull request #2538 from clydeshaffer/dbg_banknum
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[LD65] Add bank number to `seg` entries in dbgfile
2024-11-26 02:27:29 +01:00
21030c22a0
Apple2: Rewrite rewinddir() in assembly
2024-11-17 11:03:58 +01:00
f663ee428d
Apple2: Rewrite readdir() and closedir() to assembly
2024-11-17 11:03:58 +01:00
90e4360958
Parse and report segment bank number in dbginfo module and test shell
2024-11-16 17:13:04 -05:00
700c01fa8b
Rename dir_file_count to dir_entry_count
2024-11-15 19:25:40 +01:00
40d9f3eed5
Apple2: Provide a way to get directory file count
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The information is available in the directory key block.
Providing it to the user as soon as opendir() is done
can save them costly code.
2024-11-15 19:25:40 +01:00
fa80e171a2
[LD65] Add bank number to dbgfile
2024-11-12 01:57:27 -05:00
36132a437b
Merge pull request #2478 from alexthissen/lynx-include
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Lynx cc65 and ca65 include file improvements for Mikey and Suzy
2024-11-09 20:10:51 +01:00
a945bedefc
Replaced all C++ style comments from Lynx include files
2024-11-09 19:46:11 +01:00
e07cdd0a80
Merge pull request #2533 from colinleroy/apple2-rewrite-opendir-asm
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Apple2: Rewrite opendir in assembly
2024-11-09 19:35:48 +01:00
819a314508
Apple2: Rewrite opendir in assembly
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58 bytes size gain
2024-11-09 18:17:30 +01:00
4036912463
Fix to trailing whitespace
2024-11-09 12:06:37 +01:00
3dad6c76fa
Changed to C style comments
2024-11-09 12:01:22 +01:00
0c018919fe
Removed union and structures for Suzy math
2024-11-09 11:45:41 +01:00
1f1a004a05
Minor tweaks to Suzy struct types.
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Named math union
2024-11-09 11:45:41 +01:00
489989f4c8
Changed 0x hex values to % binary values
2024-11-09 11:45:41 +01:00
336c4287c5
Missed some dangles spaces
2024-11-09 11:45:41 +01:00
abcb073a5a
Bit definitions for Suzy
2024-11-09 11:45:41 +01:00
7150fdf4b9
Enumerations and math structures for Suzy
2024-11-09 11:45:41 +01:00
3553975b02
Math improvements to Suzy include file
2024-11-09 11:45:41 +01:00
eb6003aaf7
Mikey enumeration values for cc65 include files and new bit definitions for ca65
2024-11-09 11:45:41 +01:00
394d3b1964
Merge pull request #2528 from lcvgit/cc65-checkversion-fix
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checkversion.c fix missing shifts
2024-11-07 20:52:38 +01:00
c41eb007e4
Update checkversion.c
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Add missing shifts.
2024-10-21 10:09:00 -05:00
02840d503c
Fix checkversion.c
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Add missing shifts for checking version from __CC65__.
2024-10-21 10:00:48 -05:00
4dfbccfafd
Merge pull request #2522 from kugelfuhr/kugelfuhr/code-optimizations
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Improve generated code for AND/EOR/ORA
2024-10-05 15:03:46 +02:00
270aa4417b
Merge pull request #2524 from kugelfuhr/kugelfuhr/fix-2523
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Fix some issues with preprocessor expressions
2024-10-05 14:14:29 +02:00
8cd45417f9
Merge pull request #2525 from SvOlli/doc_customizing
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updated customizing documentation
2024-10-05 14:13:05 +02:00
bb7f0c17b8
Merge pull request #2526 from picocomputer/master
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Add to rp6502 target: clock(), xregn(), and RIA stack increase
2024-10-05 14:11:34 +02:00
Stefan
Bob Andrews
Sidney Cadot
Clyde Shaffer
Colin Leroy-Mira
Alex Thissen
Alex Thissen
lcvgit