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[/] [amber/] [trunk/] [hw/] [vlog/] - Rev 52

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Rev Log message Author Age Path
52 Fixed typo in notes on creating DDR memory interfaces using coregen csantifort 4732d 21h /amber/trunk/hw/vlog/
49 Added a note n how to change timeouts csantifort 4773d 21h /amber/trunk/hw/vlog/
47 Changed V6 VCo from 1000Mhz to 1200 MHz csantifort 4798d 00h /amber/trunk/hw/vlog/
43 Added support for the flat executable file format to vmlinux, so that the hello-world program is correctly relocated when it is loaded at the end of the vmlinux test.
Changed the Virtex-5 clock configuration to use a 1200MHz VCO frequency and 80MHz system clock frequency.
csantifort 4805d 23h /amber/trunk/hw/vlog/
42 Added write buffer - fixes bug if wishbone writes takes multiple cycles to complete csantifort 4823d 19h /amber/trunk/hw/vlog/
41 Added instructions on how to use Coregen to create the Spartan-6 DDR3 memory interface. csantifort 4825d 04h /amber/trunk/hw/vlog/
40 Added wishbone bus jitter testing option.
Cleaned up waveform log .do files, now seperate files for a23 and a25 cores.
Added vmlinux executable elf file for running on hardware.
csantifort 4829d 20h /amber/trunk/hw/vlog/
39 Added a second level of buffering to a25_wishbone_buf to fix a lockup
bug when write acks to not return immediately, and also to improve performance slightly
csantifort 4830d 21h /amber/trunk/hw/vlog/
38 support 128-bit wishbone now used for a25 core csantifort 4831d 21h /amber/trunk/hw/vlog/
37 128-bit wide boot memory module csantifort 4832d 19h /amber/trunk/hw/vlog/
36 Changed boot_mem for the a25 system to be 128 bits wide to match the 128-bit wide wishbone bus csantifort 4832d 20h /amber/trunk/hw/vlog/
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 4834d 03h /amber/trunk/hw/vlog/
32 Added clock cycle counting register to test_module to support dhrystone performance measurement csantifort 4836d 21h /amber/trunk/hw/vlog/
30 Bug fix - a write access was sometimes dropped when it was in a sequence of writes with variable wb_ack delays csantifort 4850d 03h /amber/trunk/hw/vlog/
27 Got working with cadence nc simulator csantifort 4885d 04h /amber/trunk/hw/vlog/
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 4919d 03h /amber/trunk/hw/vlog/
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 4923d 01h /amber/trunk/hw/vlog/
16 Deleted the old version of the 3-state amber core. Its replaced with amber23.
Added the 5-state Amber core.
csantifort 4925d 15h /amber/trunk/hw/vlog/
15 Copied amber to amber23, Many system changes to support new amber25 core. csantifort 4925d 15h /amber/trunk/hw/vlog/
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 4927d 03h /amber/trunk/hw/vlog/

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