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Author SHA1 Message Date
AnachronautandClaude Opus 5 ca34e077ad Add sbex.h, which was never committed 
The loadable program format's header has been in the working tree since
the loader was written and has never been in the repository: the gitignore
rules matched Source/Assembler as a directory, so it was silently
untracked. Anything cloning this repository could not build it, because
secondPass.c includes this file.

This is the failure the previous commit describes, having already happened
once without being noticed.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
 2026-08-19 18:17:28 -04:00
AnachronautandClaude Opus 5 51601545ae Anchor the gitignore patterns to the repository root 
Without a leading slash a pattern matches at any depth, so the rules for
the three built binaries also matched directories: "Assembler" ignored
Source/Assembler. The files already in it stayed tracked, which is why
nothing had gone wrong yet, but a new source file added there would have
been silently untracked and left out of a commit.

Found by git refusing to stage a change to Source/Assembler/firstPass.c.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
 2026-08-19 18:16:06 -04:00
Anachronaut c4b59acc68 Infrastructure for system services through software interrupts. 2026-08-19 15:16:30 -04:00
Anachronaut e3100b4718 Fixed assembler bug that caused crash on IR array resize. Added line editor app. 2026-08-17 23:26:21 -04:00
Anachronaut 1d1a14318c Programs can now list and share vectors. 2026-08-17 21:39:27 -04:00
Anachronaut a842c884e8 Added assembler check for string outside Data Segment. 2026-08-17 20:10:33 -04:00
Anachronaut 9e3425d34b Programs can now pin specific routines to specific vectors in SplitBit assembly. Added snake game. 2026-08-17 19:12:42 -04:00
Anachronaut 08624925fe Interrupt on keypress mode 2026-08-17 16:02:44 -04:00
Anachronaut 91c9d49d1b CosmOS pre-alpha and launchable application versions of old programs. 2026-08-17 15:31:49 -04:00
Anachronaut eff6902bcf Block device peripheral and SBFS file system implemented. 2026-08-16 14:03:29 -04:00
Anachronaut 04dfcd707b Memory controller implemented. 2026-08-15 20:43:53 -04:00
Anachronaut c4b2c27a2d Device table added to IO Port 0xFF. 2026-08-15 01:01:21 -04:00
Anachronaut 6d1966d500 Interrupt system implemented, some new programs. 2026-08-15 00:44:13 -04:00
Anachronaut 638b68b25c Long standing assembler bugs fixed, new path system. Make compatibility update. 2026-08-14 16:53:28 -04:00
Anachronaut 94b3a7af28 New SplitBit programs. 2026-08-13 23:42:55 -04:00
Anachronaut c2440ae5fa Various bug fixes to assembler, added more data pointers. 2026-08-13 23:41:22 -04:00
Anachronaut b50210d127 Fixed use-after-free in Assembler 
Use after free occurred in main() in the case that a program being assembled was longer than the initially allocated intermediate array.
 2026-04-27 16:58:43 -04:00
Anachronaut 49fd342135 Clarified Carry Flag behavior. 2024-11-20 17:54:05 -05:00
Anachronaut 4eedc20b04 Formatting updates. 2024-11-20 17:45:23 -05:00
Anachronaut 3bb42eaba4 Uploaded unfinished libraries. 2024-11-20 14:01:14 -05:00
Anachronaut 5e854ee7f9 Updated test programs. 
Test programs now work correctly with the latest CPU core changes.
 2024-11-20 13:59:40 -05:00
Anachronaut e763a3e4de CPU Core Updates. 
Overflowing/Underflowing A or B with increment or decrement instructions now sets the Carry Flag.
An increment or decrement of A or B that doesn't result in an overflow/underflow now clears the Carry Flag.
Q is no longer saved and restored in subroutine calls, allowing it to be used to return a one byte result.
Documentation updated with more detail.
 2024-11-20 13:57:57 -05:00
Anachronaut bf7beec8ec More Programs 
Added math library WIP.
Added some other stuff.
 2024-11-18 19:38:38 -05:00
Anachronaut fc2955cc21 Fixed typo. 2024-11-18 13:11:07 -05:00
Anachronaut d59a91aa38 Removed Duplicate instructions. 
LDA and LDB are now Data Operations only. Minor reshuffling of instructions.
Fixed typo in the programming manual.
 2024-11-18 13:10:02 -05:00
Anachronaut b1639ca56b Merge pull request #1 from agbrooks/flake 
Add rudimentary flake
 2024-11-01 22:16:18 -04:00
albatross 967a7032b8 Add rudimentary flake 2024-11-01 21:08:54 -05:00
Anachronaut 2a691ba199 Fixed bugs. 8 bit prime Sieve demo. 2024-11-01 20:53:48 -04:00
Anachronaut 30eebbd9df Delete Programs/print.asm 2024-11-01 16:42:38 -04:00
Anachronaut c512f07305 Fixed input bugs. 
Input from stdin now works as expected in the emulator.
New program to demo input from the command line.
 2024-11-01 16:41:25 -04:00
Anachronaut 67eea181b8 Delete Programs/printDigitTest.asm 2024-11-01 12:14:16 -04:00
Anachronaut f1bad6853d Delete Programs/printDecimalTest.asm 2024-11-01 12:14:06 -04:00
Anachronaut f4c78e68ba DP offset instructions, new demo programs. 
Added DPUP and DPDN, which take a one byte operand specifying how far up or down to offset the Data Pointer.
Three Fibonacci generators using the print.asm library.
 - 8 bit values printing in decimal representation.
- 16 bit values printing in hexadecimal representation.
- 32 bit values printing in hexadecimal representation.
 2024-11-01 12:13:13 -04:00
Anachronaut e5241beb51 Update SplitBit Programming Manual.md 2024-10-31 13:30:55 -04:00
Anachronaut 228cf0593a Added stuff. Fixed bug. 
Data Pointer value now properly displayed in debug mode.
Added conditional calls to match conditional branches.
 2024-10-31 13:30:15 -04:00
Anachronaut f8848adf8c Update SplitBit Assembler Manual.md 2024-10-30 21:54:41 -04:00
Anachronaut f0d4a9b0f3 Update SplitBit Assembler Manual.md 2024-10-30 21:50:43 -04:00
Anachronaut 52a44ed094 Update SplitBit Assembler Manual.md 2024-10-30 16:09:26 -04:00
Anachronaut 470327a0d5 Update SplitBit Assembler Manual.md 2024-10-30 16:09:04 -04:00
Anachronaut c64f097810 Added bit shift instructions. 
SHL and SHR treat A and B as a 16 bit circular shift register and rotates them either left or right.
 2024-10-30 16:06:33 -04:00
Anachronaut a58fb3d694 Added new instructions. 
Added CCF - Clear Carry Flag
Added BRC - Branch on Carry Flag
Improved CALL and RET - All registers but status now saved and restored.
 2024-10-29 21:04:03 -04:00
Anachronaut f9308338c4 Update print.asm 2024-10-27 20:55:29 -04:00
Anachronaut 26e6233f8a Update print.asm 2024-10-27 20:54:21 -04:00
Anachronaut 2fc0986ac8 Update printHello.asm 2024-10-27 20:15:15 -04:00
Anachronaut f27b290b44 Update printHello.asm 2024-10-27 20:14:55 -04:00
Anachronaut 91be7eb217 Update print.asm 2024-10-27 19:20:26 -04:00
Anachronaut 992e44ca12 CALL and RET instructions. 
Changed PSHP and POPP into CALL and RET, streamlining their use for subroutine calls.
Updated Assembler and Emulator.
New demonstration programs.
 2024-10-27 19:18:54 -04:00
Anachronaut 78f827e9dc Delete Programs/hello.bin 2024-10-26 15:55:59 -04:00
Anachronaut a17af6eff7 Update Assembler.c 2024-10-26 15:46:09 -04:00
Anachronaut f3dcd2bddf Update SplitBit Programming Manual.md 2024-10-26 15:43:57 -04:00