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[/] [tinycpu/] [trunk/] - Rev 32

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Rev	Log message	Author	Age	Path
32	Finished up changes needed to make memory reading actually work. Push and Pop now work	earlz	4392d 17h	/tinycpu/trunk/
31	Removed the infamous TRData latch from ALU. Now synthesizes (sorta) warning free. No latches are used.	earlz	4393d 12h	/tinycpu/trunk/
30	After a long weekend of thinking how to do this.. I've decided instead to not strive for a single-cycle computer. Now, instead, ALU operations will be 2 cycle along with memory operations, and data movement operations are still 1 cycle	earlz	4393d 13h	/tinycpu/trunk/
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	4396d 19h	/tinycpu/trunk/
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	4397d 14h	/tinycpu/trunk/
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	4397d 20h	/tinycpu/trunk/
26	Added extra check to make sure fetcher works properly after memory write	earlz	4397d 21h	/tinycpu/trunk/
25	Wait for memory state now works as expected, and opcode `mov [reg], immd` works now	earlz	4398d 01h	/tinycpu/trunk/
24	Good news, mov to IP actually works as expected!	earlz	4398d 19h	/tinycpu/trunk/
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	4398d 19h	/tinycpu/trunk/
22	Added to process sensitivity list to avoid warning and added ELSE for IR so it doesn't generate a latch	earlz	4399d 11h	/tinycpu/trunk/
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	4399d 11h	/tinycpu/trunk/
20	fuck it. All sorts of broken, will try to fix it tomorrow	earlz	4400d 11h	/tinycpu/trunk/
19	Got beginning of core/decoder for the CPU	earlz	4400d 12h	/tinycpu/trunk/
18	Finished memory controller	earlz	4403d 22h	/tinycpu/trunk/
17	Added fetch component for fetching from memory to instruction register Added additional testing for carryover to make sure it's correct	earlz	4404d 12h	/tinycpu/trunk/
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	4407d 14h	/tinycpu/trunk/
15	Added README, LICENSE, and the (so far not created) incdec component	earlz	4409d 11h	/tinycpu/trunk/
14	Added ALU with all the operations we'll need. Synthesizes as well trivially	earlz	4409d 19h	/tinycpu/trunk/
13	Forgot about the new library I added	earlz	4409d 22h	/tinycpu/trunk/

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[/] [tinycpu/] [trunk/] - Rev 32

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