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[/] [amber] - Rev 54

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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 4681d 09h /amber
53 Cleaned up Amber Verilog, removing unused signals. csantifort 4696d 07h /amber
52 Fixed typo in notes on creating DDR memory interfaces using coregen csantifort 4696d 07h /amber
51 Revert vmlinux back to 48. csantifort 4737d 07h /amber
50 Revert to previous version csantifort 4737d 07h /amber
49 Added a note n how to change timeouts csantifort 4737d 07h /amber
48 Fixed a bug in linux that caused the os to not return to the running application after an interrupt.
Hello-world now runs stand-alone again.
Added initrd-200k-dhry, a disk image that uses the dhry program for init.
csantifort 4741d 14h /amber
47 Changed V6 VCo from 1000Mhz to 1200 MHz csantifort 4761d 11h /amber
46 svn ignore vmlinux.dis and vmlinux.mem csantifort 4769d 09h /amber
45 Store vmlinux.mem and vmlinux.dis in compressed form csantifort 4769d 09h /amber
44 Updated vmlinux image based on last change csantifort 4769d 09h /amber
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 4769d 09h /amber
42 Added write buffer - fixes bug if wishbone writes takes multiple cycles to complete csantifort 4787d 06h /amber
41 Added instructions on how to use Coregen to create the Spartan-6 DDR3 memory interface. csantifort 4788d 15h /amber
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 4793d 07h /amber
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 4794d 08h /amber
38 support 128-bit wishbone now used for a25 core csantifort 4795d 08h /amber
37 128-bit wide boot memory module csantifort 4796d 06h /amber
36 Changed boot_mem for the a25 system to be 128 bits wide to match the 128-bit wide wishbone bus csantifort 4796d 07h /amber
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 4797d 14h /amber

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