cisc-0.2 - An emulator for the Sux instruction set.

Age	Commit message (Collapse)	Author
2020-08-13	Refactored get_addr(), and all of the effective	mrb0nk500
	address handling. It's now all done using several functions for each addressing mode, with the result being the effective address. I did this to make the codebase cleaner, and more readable.
2020-07-06	- Implemented a new opcode table.	mrb0nk500
	- Added a new preifx called the OF prefix, which adds the contents of a specific register to the current operand. - Added a table generator, which parses opcode table csv files.
2020-06-11	Did some more stuff.	mrb0nk500
	- Fix some bugs with strings. - Started to refactor the instruction functions. - Added support for using RS prefixes on the memory based increment, and decrement instructions. - Started work on SuBAsm's lexer. Have fun looking at this, BieHDC. :)
2020-05-28	Refactored the assembler, yet again, and implemented	mrb0nk500
	support for comma separated values. The assembler now uses a linked list of tokenized lines, each containing a linked list of tokens for that line. I also moved all of the large tables into the higher parts of memory, in order to free up the lower part of memory for the user. Comma sepparated values only work with directives, and only with the byte", word, dword, and qword directives. I also added support for getting the upper, and lower halves of an address. The tokens for both of those are '<', and '>' respectively.
2020-05-03	Put the instruction, and I/O routines into separate	mrb0nk500
	functions. I did this to make it more readable, while still making it fast, due to inlining it.
2020-04-17	Made both the assembly language monitor, and the	mrb0nk500
	emulator smaller, and faster. I am also starting to make SuBEditor's source code more readable.
2020-04-09	Completely changed the assembler.	mrb0nk500
	It now has a lexer/tokenizer, along with a parser. I have also made the emulator even smaller.
2020-03-24	Added support in SuBEditor for true backspace, and	mrb0nk500
	inserting characters without replacing the old ones.
2020-03-17	Revamped the opcode table, made the emulator more	mrb0nk500
	efficient, and ported SuBEditor to C. I revamped the opcode table to add another prefix bit for the addressing mode, finally giving access to all addresses, without wasting any bytes. I made the stack based operations more efficient, by sort of applying Duff's device to it. And I ported SuBEditor to C, to make it easier for me to figure out how to implement SuBAsm.
2020-02-20	Finished SuBAsm's screen editor.	mrb0nk500
	Which I am now calling, SuBEditor.
2020-01-10	Added GPLv2.	mrb0nk500
	We're now Free Software!!!
2019-12-14	We now have keyboard support!!!	mrb0nk500
	I also added the WAI instruction, which puts the thread that executed it, into a catatonic stat, where it can't do anything, until an interrupt occurs. I will be starting work on GFsuX next. I also might start work on SuBAsm, the Sux Bootstrapping Assembler.
2019-12-06	Delete opcode.c, since I added all the functions	mrb0nk500
	from it into sux.c.
2019-12-02	Started implementing some pthreads support.	mrb0nk500

2019-11-30	Start work on rev2 of Sux.	mrb0nk500
	Added a prefix byte to tell the CPU certain information such as, how many bytes to load into the registers, or what ISA extension we want to use. I also added an assembly language monitor, so that I don't have to write stuff in machine code.
2019-11-26	Revamped the entire emulator.	mrb0nk500
	I finally implemented the other addressing modes, and added a Makefile. Not sure when I will start work on rev2 of Sux, but it will be sometime soon.