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[/] [amber/] [trunk/] [hw/] [vlog/] - Rev 57

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Rev Log message Author Age Path
57 Add some debug messages csantifort 4693d 16h /amber/trunk/hw/vlog/
54 Bug fix for bug reported by Botao Lee. The mode bits in the decode stage did not change immediately
after a mode switch from a teqp instruction, but 1 cycle later. This meant the wrong set of registers
was selected for writing to for 1 clock cycle.
csantifort 4710d 16h /amber/trunk/hw/vlog/
53 Cleaned up Amber Verilog, removing unused signals. csantifort 4725d 14h /amber/trunk/hw/vlog/
52 Fixed typo in notes on creating DDR memory interfaces using coregen csantifort 4725d 14h /amber/trunk/hw/vlog/
49 Added a note n how to change timeouts csantifort 4766d 14h /amber/trunk/hw/vlog/
47 Changed V6 VCo from 1000Mhz to 1200 MHz csantifort 4790d 18h /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 4798d 16h /amber/trunk/hw/vlog/
42 Added write buffer - fixes bug if wishbone writes takes multiple cycles to complete csantifort 4816d 12h /amber/trunk/hw/vlog/
41 Added instructions on how to use Coregen to create the Spartan-6 DDR3 memory interface. csantifort 4817d 21h /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 4822d 13h /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 4823d 14h /amber/trunk/hw/vlog/
38 support 128-bit wishbone now used for a25 core csantifort 4824d 14h /amber/trunk/hw/vlog/
37 128-bit wide boot memory module csantifort 4825d 12h /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 4825d 13h /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 4826d 20h /amber/trunk/hw/vlog/
32 Added clock cycle counting register to test_module to support dhrystone performance measurement csantifort 4829d 14h /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 4842d 20h /amber/trunk/hw/vlog/
27 Got working with cadence nc simulator csantifort 4877d 21h /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 4911d 20h /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 4915d 18h /amber/trunk/hw/vlog/

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