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[/] [amber/] [trunk/] [hw] - Rev 38

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Rev	Log message	Author	Age	Path
38	support 128-bit wishbone now used for a25 core	csantifort	5054d 04h	/amber/trunk/hw
37	128-bit wide boot memory module	csantifort	5055d 02h	/amber/trunk/hw
36	Changed boot_mem for the a25 system to be 128 bits wide to match the 128-bit wide wishbone bus	csantifort	5055d 03h	/amber/trunk/hw
35	Amber25 improvements: Use 128-bit wishbone bus, instead of 32-bit to reduce cache miss fetch times Use a fast barrel shifter for shifts between 0 and 4 to improve timing Use a 2 cycle full barrel shifter for complex shifts	csantifort	5056d 11h	/amber/trunk/hw
32	Added clock cycle counting register to test_module to support dhrystone performance measurement	csantifort	5059d 04h	/amber/trunk/hw
30	Bug fix - a write access was sometimes dropped when it was in a sequence of writes with variable wb_ack delays	csantifort	5072d 11h	/amber/trunk/hw
29	Use lgo command for saving waveforms in modelsim	csantifort	5074d 04h	/amber/trunk/hw
27	Got working with cadence nc simulator	csantifort	5107d 12h	/amber/trunk/hw
25	Bug fix: boot-loader.mem became larger that the allowed 8k byte boot mem size. Removed a struct in elfsplitter.c thats only used for debug - this reduced boot-loader.mem enough so that it fits again. Tidy up: Removed a debug message from hw/tools/run.sh	csantifort	5114d 09h	/amber/trunk/hw
23	Split the source files list into a Vertex-6 only list and a Spartan-6 only list. That way users don;t need to delete files from the list manually if they only have a setup for one of the FPGA types.	csantifort	5116d 10h	/amber/trunk/hw
21	Fixed bug in the conditions to create the FPGA configuration log file. I added the creation of the log file in the last release, but the way it was implemented was causing the Makefile to always rebuild from the start.	csantifort	5120d 09h	/amber/trunk/hw
20	Added feature to A25 core to directly use a read value from the write back stage to reduce the stall to 1 cycle when there is a register conflict with the following instruction. This increases performance by about 3%.	csantifort	5141d 10h	/amber/trunk/hw
19	Create a configuration log file as part of the synthesis flow. This file is a useful reference to tell the different bitfiles apart.	csantifort	5141d 11h	/amber/trunk/hw
17	amber25 core bug fix. The return address for irq interrupts was off by 4 bytes when the interrupt occurred during a stm instruction with the following instruction having some register conflicts. Added test irq_stm to catch the bug. Cleaned up some header descriptions	csantifort	5145d 08h	/amber/trunk/hw
16	Deleted the old version of the 3-state amber core. Its replaced with amber23. Added the 5-state Amber core.	csantifort	5147d 23h	/amber/trunk/hw
15	Copied amber to amber23, Many system changes to support new amber25 core.	csantifort	5147d 23h	/amber/trunk/hw
14	Re-wrote the behavioral clock generation code to more accurately calculate the sys_clk frequency. The previous version was not producing the correct frequency at higher frequenies due to rounding errors.	csantifort	5149d 11h	/amber/trunk/hw
13	Bug fix - added an extra state to the rx state machine to properly align reading the uart input to the middle of each bit.	csantifort	5149d 11h	/amber/trunk/hw
12	Added INITIALIZE_TO_ZERO parameter to keep instantiation idendical to generic sram models. The parameter is not used in the Xilinx models (they always init to zero) but it used in the generic models.	csantifort	5149d 11h	/amber/trunk/hw
11	Added vmlinux test.	csantifort	5164d 11h	/amber/trunk/hw

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[/] [amber/] [trunk/] [hw] - Rev 38

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