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[/] [zipcpu/] [trunk/] [sw/] [zasm/] [sys.i] - Rev 58

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Rev	Log message	Author	Age	Path
46	A series of updates associated with getting Dhrystone to work. Includes updates to getting multiple files to link/work together within the assembler, as well as getting quoted quotations to work in the lexer, and better include file support in the preprocessor.	dgisselq	3321d 04h	/zipcpu/trunk/sw/zasm/sys.i
36	Lots of changes to increase processing speed and remove pipeline stalls. Removed the useless flash cache, replacing it with a proper DMA controller. "make test" in the main directory now runs a test program in Verilator and reports on the results.	dgisselq	3333d 13h	/zipcpu/trunk/sw/zasm/sys.i
34	Bunches of changes, although very little changed with the core itself. Regarding the core, some bugs were fixed within zipcpu.v (the CPU part of the core), so that the debugger can change the program counter. The debugger can now halt the CPU and then view, examine, and modify registers to include the program counter, although live changes to the CC register have not been tested. There was also a bug in the stall handling of the wishbone bus delay line. This has now been fixed. Moving outwards to the system, some parameters have been added to zipsystem to make it more configurable for whatever environment you might wish to place it within. Other minor clean ups have taken place, mostly to the internal documentation. Lots of changes, though, to the assembler. The big one is the implementation of #define macros, C style. Several buggy macros were in sys.i. These have been fixed. The Makefile has been adjusted so that the build of test.S, which depends upon sys.i, is now properly dependent upon sys.i for make purposes. Further, not only will zpp, the assembler preprocessor, handle #define macros, it will also recursive #defines. The assembler expression evaluator has also been updated to properly handle both operator precedence, as well as modulo arithmetic. The master system test file, test.S, found in the sw/zasm directory has been updated to reflect these new capabilities. (I really need to move it to the bench/asm directory, so you may expect that change sometime later.)	dgisselq	3359d 08h	/zipcpu/trunk/sw/zasm/sys.i
13	Finally! The beginnings of the new assembler. It's not really polished yet, and it is quite clunky, but it works!! (Lots of bugs and features left to fix/implement: #include, #define macro(), #line tracking through the preprocessor, a means of finding include files (and the preprocessor!) and more. But, as a beginning, the basics are functinoal.	dgisselq	3372d 15h	/zipcpu/trunk/sw/zasm/sys.i

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