Commit Graph
22 Commits
Author SHA1 Message Date
AnachronautandClaude Opus 5 be402cc9be Assembler: a string that spells an instruction is no longer assembled as one
A token is classified after its quotes have been stripped, so a string
literal reading "ADD" looked exactly like the ADD instruction and was
assembled as one. It failed with "attempting to assemble outside the
Program Segment", a message about a mistake nobody had made.

The literal and label checks were already guarded against strings and the
instruction check was not. Mnemonics match without regard to case, so
"or" and "and" were caught by this too, and those are ordinary enough
words to want in a message.

Third of its family, after a string beginning with '0' being read as a
malformed number and a string in the Program Segment being silently
discarded. All three have the same root.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-08-19 18:17:39 -04:00
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
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 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 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 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 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 2a691ba199 Fixed bugs. 8 bit prime Sieve demo. 2024-11-01 20:53:48 -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 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 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 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 a17af6eff7 Update Assembler.c 2024-10-26 15:46:09 -04:00
Anachronaut dfa5ad2638 Assembler Completed
Added the Assembler.
Added instructions for the assembler to README.md
Added Assembler Manual
Modified Makefile to build the Assembler.
2024-10-26 15:31:24 -04:00