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[/] [ion/] [trunk/] [vhdl/] - Rev 212

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Rev	Log message	Author	Age	Path
212	BUG FIX: sequences of back-to-back I/O reads or writes didn't work. The stall conditions were wrong for those cases. Minor cleanup of the comments	ja_rd	4410d 06h	/ion/trunk/vhdl/
211	Included a simulated block of I/O regs in the test bench for easing some cache tests.	ja_rd	4410d 06h	/ion/trunk/vhdl/
207	Simulation memories now modelled with shared variables and not signals. This improves simulation speed of large programs (e.g. Adventure) by orders of magnitude	ja_rd	4689d 02h	/ion/trunk/vhdl/
206	Fixed SygnalSpy function calls for compatibility with older versions of Modelsim	ja_rd	4689d 02h	/ion/trunk/vhdl/
205	Fixed bug in test bench interface to CPU	ja_rd	4710d 01h	/ion/trunk/vhdl/
201	Minor fixes to code comments	ja_rd	4724d 01h	/ion/trunk/vhdl/
200	CPU interrupt input changed to 8-bit vector Other modules changed accordingly Interrupts still missing; this is just preparing the interface	ja_rd	4724d 01h	/ion/trunk/vhdl/
194	Removed deprecated files from old TB version	ja_rd	4725d 16h	/ion/trunk/vhdl/
193	Major test bench reorganization: 1.- TB now uses same object code as synthesizable demo. 2.- TB now simulates full MPU system. 3.- Console logging moved to TB package. 4.- Code sample makefiles and modelsim script updated accordingly.	ja_rd	4725d 16h	/ion/trunk/vhdl/
191	Separated object code stuff from mcu entity Object code related stuff now lives in separate file Makefiles for code samples updated accordingly Old mcu template deprecated but still in place	ja_rd	4730d 02h	/ion/trunk/vhdl/
188	updated hello demo mpu file	ja_rd	4738d 19h	/ion/trunk/vhdl/
171	CPU bug fix: MFC0 instructions aborted by privilege trap should not modify any register	ja_rd	4769d 11h	/ion/trunk/vhdl/
162	Fixed stupid mistake in headers (date of project)	ja_rd	4775d 23h	/ion/trunk/vhdl/
161	Added GPL license info to the vhdl headers This project is becoming respectable :)	ja_rd	4775d 23h	/ion/trunk/vhdl/
159	bug detected but not fixed in cpu (1st instruction after entering user mode is executed in kernel mode)	ja_rd	4777d 08h	/ion/trunk/vhdl/
158	removed file from TB directory which was committed by mistake	ja_rd	4777d 08h	/ion/trunk/vhdl/
157	Bug fix in the missing coprocesor exception. The CPU was triggering a privilege exception for the mtc0 that went into user mode. Logging HDL updated	ja_rd	4778d 18h	/ion/trunk/vhdl/
153	Added R3000 compatible support for kernel/user state: - Implemented KU/IE plus KUp/IEp and KUo/IEo status bits - Updated startup and test code to account for changes - Implemented bit DID NOT TEST rfe instruction (not used in code) - Access to CP0 in user mode triggers 'CpU' trap - Updated software simulator Besides, the logging of HI/LO register changes has been temporarily disabled, there's an unfixed bug in it.	ja_rd	4779d 03h	/ion/trunk/vhdl/
152	Added R3000 compatible support for kernel/user state: - Implemented KU/IE plus KUp/IEp and KUo/IEo status bits - Updated startup and test code to account for changes - Implemented bit DID NOT TEST rfe instruction (not used in code) - Access to CP0 in user mode triggers 'CpU' trap - Updated software simulator Besides, the logging of HI/LO register changes has been temporarily disabled, there's an unfixed bug in it.	ja_rd	4779d 03h	/ion/trunk/vhdl/
151	BUG FIX: major bugs fixed in cache module 1.- sram address was wrong (leftover from previous version) 2.- writes to unmapped areas were blocking the cache 3.- Sequence SW,LW produced a RAW data hazard in some cases	ja_rd	4779d 03h	/ion/trunk/vhdl/

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[/] [ion/] [trunk/] [vhdl/] - Rev 212

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