An emulator for the Sux instruction set. https://git.b0nk.xyz/cisc-0.2.git/atom?h=new-assembler 2020-12-08T16:16:13Z 2020-12-08T16:16:13Z mrb0nk500 b0nk@b0nk.xyz 2020-12-08T15:42:10Z urn:sha1:673efacc37efa90e61eba224efadbb4be863c77b both the assembler, and the emulator. I finally figured out how I could get support for the Ortho extension implemented into the old assembler. The only reason for doing this, is to buy me some while I start work on the new assembler, and to help me get an idea for how to do the same in the new assembler. 2020-12-04T20:20:28Z mrb0nk500 b0nk@b0nk.xyz 2020-12-04T20:20:28Z urn:sha1:96393257a43ac52f2b911594d106741245dec5f0 assembler. - Did alot of stuff in the emulator. - Did alot of stuff in the SuB Suite. 2020-11-20T20:10:24Z mrb0nk500 b0nk@b0nk.xyz 2020-11-20T20:10:24Z urn:sha1:83ce1151ee1f06ae6b1c5c1018cc2489494e5ea4 This is the biggest milestone I've reached for this project, since the base extension changes alot about what Sux can do by default, and now makes it a viable instruction set for modern day use, when compared with other instruction sets. 2020-11-20T16:50:47Z mrb0nk500 b0nk@b0nk.xyz 2020-11-20T16:50:47Z urn:sha1:dc7ebb9d424bb39d59f09b8498746beb871c46f4 - Made the debug print for the CPU flags more readable. - Started work on implementing line number support into SuBAsm. 2020-10-06T12:12:03Z mrb0nk500 b0nk@b0nk.xyz 2020-10-06T12:12:03Z urn:sha1:6a88d1af2ee5894365a56af89a6e97140f3e804d 2020-10-06T12:02:23Z mrb0nk500 b0nk@b0nk.xyz 2020-10-06T12:02:23Z urn:sha1:8aa8586b03568d3a3d6eba39269a1b79510bc835 This is to allow for making the stack bigger for anything that needs to change the size of it. - Made the SuB Suite set the stack pointer to the end of the usable RAM, and allow for changing the stack size. In this case, the size of the stack is currently set to 192K, with the end of the heap being just below the stack. 2020-10-05T12:47:08Z mrb0nk500 b0nk@b0nk.xyz 2020-10-05T12:47:08Z urn:sha1:96ae48f8a79f33cff0a89fac211b6862866e1a44 implementation of free(), although it's commented out. - Removed the sbc() function from the emulator, since sbc can be done by just inverting the second operand of adc. 2020-10-04T22:22:00Z mrb0nk500 b0nk@b0nk.xyz 2020-10-04T22:22:00Z urn:sha1:ca8e2f93acc794b00464c5513956bd84de258913 emulator's memory. All reads outside of the emulator's memory give back $/0xFF bytes, while all writes outside of the emulator's memory are ignored. - Implemented malloc(), and free() in the SuB Suite. In order to do this, I had to add support for a heap, which I did by reserving the first 3 banks of the address space (the first 192K), and by adding a routine that finds the end of the RAM. In this case, I set the starting address for the routine at bank 3 (bank 4 with one indexing), but, the routine's starting address isn't hardcoded, and thus, any starting address can be passed as an argument. The routine uses the fact that we can now read/write outside the emulator's memory, and also uses the fact that writing outside the emulator's memory will be ignored, and that reading outside the emulator's memory will always read $/0xFF bytes, and uses that to signal that it's reached the end of the RAM. - Added a test program for getting the size of RAM starting at address $/0x20000. 2020-09-24T12:21:08Z mrb0nk500 b0nk@b0nk.xyz 2020-09-24T12:21:08Z urn:sha1:784ff59108b887e246b0f33ff696dfd981659ab2 2020-09-21T17:31:39Z mrb0nk500 b0nk@b0nk.xyz 2020-09-21T17:31:39Z urn:sha1:9932fac52c0cac2e9e0e11c84dfdf99e0a87ebfb handled. - Added a function called fix_symtree(), which when called. will rearrange the symbol tree based on the order they're declared in by the token stream. The reason I wrote this, was to make sure the symbol tree could be printed correctly. - Optimized print_symtree() to now use tail recursion. - Started adding all of the SuB Suite's structs.