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[/] [tinycpu/] [trunk/] [src/] - Rev 29

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Rev	Log message	Author	Age	Path
29	Well, added a testcase for testing the ALU bitwise operations and found a very large problem. I'm pretty sure that the decoder needs to be partially unclocked because it essentially makes the ALU clocked how it is now, which is very bad.	earlz	4452d 23h	/tinycpu/trunk/src/
28	Ok now registerfile is correct. Only using rising_edge. Now DataOut is the same as DataIn when WriteEnable is asserted. Some of my tests had to be changed because I was expecting the DataOut to be updated 1 clock cycle after the instruction rather than on the same clock cycle. Now it's truly single-cycle and without all the weird regIn stuff on the carryovers	earlz	4453d 17h	/tinycpu/trunk/src/
27	Added a few ALU opcodes and came across a weird propogation delay issue with my registerfile. As a workaround, I'm trying to use falling_edge instead of rising_edge. We shall see if I regret this later	earlz	4453d 23h	/tinycpu/trunk/src/
25	Wait for memory state now works as expected, and opcode `mov [reg], immd` works now	earlz	4454d 04h	/tinycpu/trunk/src/
24	Good news, mov to IP actually works as expected!	earlz	4454d 22h	/tinycpu/trunk/src/
23	Added top module for testing how our memory and cpu will work together. (hint: success) Messing around with a small timing issue in core	earlz	4454d 22h	/tinycpu/trunk/src/
22	Added to process sensitivity list to avoid warning and added ELSE for IR so it doesn't generate a latch	earlz	4455d 14h	/tinycpu/trunk/src/
21	The core_tb testbench finally passes. It probably doesn't synthesize, or even pass other testbenches, but it passes that one damn it.	earlz	4455d 14h	/tinycpu/trunk/src/
20	fuck it. All sorts of broken, will try to fix it tomorrow	earlz	4456d 14h	/tinycpu/trunk/src/
19	Got beginning of core/decoder for the CPU	earlz	4456d 16h	/tinycpu/trunk/src/
18	Finished memory controller	earlz	4460d 01h	/tinycpu/trunk/src/
17	Added fetch component for fetching from memory to instruction register Added additional testing for carryover to make sure it's correct	earlz	4460d 15h	/tinycpu/trunk/src/
16	Renamed incdec to carryover (see design for why). carryover should be done, though may change the "straight through on disable" behavior to instead leaving it floating depending on how things go later with coding.	earlz	4463d 17h	/tinycpu/trunk/src/
15	Added README, LICENSE, and the (so far not created) incdec component	earlz	4465d 14h	/tinycpu/trunk/src/
14	Added ALU with all the operations we'll need. Synthesizes as well trivially	earlz	4465d 23h	/tinycpu/trunk/src/
13	Forgot about the new library I added	earlz	4466d 01h	/tinycpu/trunk/src/
12	registerfile has ports for every register now makefile now uses GHW file format for gtkwave instead of VCD	earlz	4466d 02h	/tinycpu/trunk/src/
11	Finally, it synthesizes to BRAM.. Possibly need to fix how the DataOut syncs with WriteEnable and Address though if I plan to both read and write on the same clock edge	earlz	4469d 15h	/tinycpu/trunk/src/
10	Just committing so I can keep this original that passes simulation, but still synthesizes to LUTs	earlz	4469d 16h	/tinycpu/trunk/src/
9	Trying to add a byte-enable to the RAM. Used Xilinx's template for it, but ghdl won't pass the testbench	earlz	4469d 23h	/tinycpu/trunk/src/

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[/] [tinycpu/] [trunk/] [src/] - Rev 29

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