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[/] [mod_sim_exp/] [trunk] - Rev 95

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95 new control logic for the core, allow for greater frequencies for the multiplier.
changes:
- autorun_cntrl: the bit selection for the exponents is now implemented with a shift register in stead of a mux. credits to Geoffrey Ottoy for new design structure.
- mont_cntrl: gave the databus from and to the RAM more time to settle. data now has 3 clocks to get to its destination.		 JonasDC 3968d 09h /mod_sim_exp/trunk
94 BIG update: core now supports different clock speed for the multiplier core, so more performance is posible. currently this version is working in simulation and is being tested on hardware. Changes in this update include:
- changed RAM and memory to support different clocks
- new FIFO that supports dual clock (slightly modified version of generic_fifo's on OpenCores.org)
- parameter C_FIFO_DEPTH is now replace by C_FIFO_AW (address width of the fifo pointers)
- added logic for control signals to cross from one clock domain to another
- updated testbenches and interfaces accordingly
- added log of synthesis of the 2 new fifo's for Xilinx		 JonasDC 3981d 05h /mod_sim_exp/trunk
92 updated documentation with minor interrupt changes of AXI interface JonasDC 3983d 10h /mod_sim_exp/trunk
91 changed interrupt structure of AXI4-Lite interface. Now the interrupt has to be acknowledged by clearing the appropriate interrupt source flag in the control register. JonasDC 3985d 13h /mod_sim_exp/trunk
90 reverted changes from previous revision, updated AXI version with testbench JonasDC 3987d 04h /mod_sim_exp/trunk
89 updated vhdl files so now different clock frequencies are posible for the core and bus interface. JonasDC 4051d 02h /mod_sim_exp/trunk
88 small update on documentation, changed fault in axi control_reg JonasDC 4057d 03h /mod_sim_exp/trunk
87 updated documentation to version 1.4
core now supports the AXI4-Lite bus		 JonasDC 4057d 04h /mod_sim_exp/trunk
86 update on previous JonasDC 4057d 04h /mod_sim_exp/trunk
85 changed so that reset now also affects slave register JonasDC 4057d 04h /mod_sim_exp/trunk
84 AXI-Lite interface updated, now tested and verified on Xilinx FPGA
renamed C_DEVICE parameter, because of conflicts with restricted parameter in xilinx XPS		 JonasDC 4058d 12h /mod_sim_exp/trunk
83 now using values from mod_sim_exp_pkg instead of direct entity JonasDC 4060d 13h /mod_sim_exp/trunk
82 added first version of axi-lite interface and testbench for basic axi-lite operations, now under test JonasDC 4077d 09h /mod_sim_exp/trunk
81 updated files, now using the components of the mod_sim_exp_pkg instead of direct entity declaration JonasDC 4077d 09h /mod_sim_exp/trunk
78 updated documentation with new RAM style information JonasDC 4087d 03h /mod_sim_exp/trunk
77 found fault in code, now synthesizes normally JonasDC 4093d 01h /mod_sim_exp/trunk
76 testbench update JonasDC 4095d 12h /mod_sim_exp/trunk
75 made rw_address a vector of a fixed width JonasDC 4095d 12h /mod_sim_exp/trunk
74 removed C_NR_OP and C_NR_M from the generic of mod_sim_exp_core and made them contstants, because currently no other values than 4 an 2 resp. are supported/can be implemented. JonasDC 4098d 08h /mod_sim_exp/trunk
73 updated plb interface, mem_style and device generics added JonasDC 4099d 07h /mod_sim_exp/trunk
72 deleted old resources JonasDC 4100d 07h /mod_sim_exp/trunk
71 added synthesis report for altera and xilinx for the new ram.
added coregen sources for xilinx for primitive RAM		 JonasDC 4100d 07h /mod_sim_exp/trunk
70 updated testbench for use with new core parameters
updated makefile, added new sources		 JonasDC 4100d 07h /mod_sim_exp/trunk
69 big update, the mod_sim_exp core now has a selectable ram structure. a generic ram that should be usable in any fpga, a asymmetric ram that is usable for some devices of altera or xilinx and uses less resources. JonasDC 4100d 07h /mod_sim_exp/trunk
67 added memory modules for modulus and operands for FPGA's that support asymmetric memory inferring. JonasDC 4100d 10h /mod_sim_exp/trunk
66 added asymmetric ram structures to support a more performant ramstyle.
defined for xilinx and altera, not tested with other tools.		 JonasDC 4100d 11h /mod_sim_exp/trunk
65 updated plb interface, now modulus is selectable and, fifo depth is adjustable.
updated makefile with new sources and update component in package		 JonasDC 4108d 02h /mod_sim_exp/trunk
64 added synthesis reports of xilinx and altera JonasDC 4108d 08h /mod_sim_exp/trunk
63 now using a generic description of the ram for the memory. the core now should synthesize for al fpga's, no device specific code anymore. tested and synthesizes for altera and xilinx JonasDC 4108d 08h /mod_sim_exp/trunk
62 not used anymore JonasDC 4108d 11h /mod_sim_exp/trunk

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