core/math/modexp - Modular exponentiation core

Age	Commit message (Collapse)	Author
2015-06-26	Adding note about experimental fused shift functionality in the adder stage.	Joachim Strömbergson

2015-06-26	Adding hold register and bit combine to create final s_mem data with fused ↵	Joachim Strömbergson
	add and div.
2015-06-26	Added test register for cycle trace. Moved index counter update under ↵	Joachim Strömbergson
	if-else to remove spurious s_mem read.
2015-06-25	Removed obsolete register. Fixed name of trace signals.	Joachim Strömbergson

2015-06-25	Update of montprod after test implementation with different operand sizes.	Joachim Strömbergson

2015-06-25	Added another state for setting s_mem_read_addr to allow shortcutting one ↵	Joachim Strömbergson
	cycle in each loop.
2015-06-25	Minor nits.	Joachim Strömbergson

2015-06-25	Removed stale switch since we now do s_mem init integrated with calculation.	Joachim Strömbergson

2015-06-24	Removed stale mux state.	Joachim Strömbergson

2015-06-24	Fused the s_mem init loop into the adder loop.	Joachim Strömbergson

2015-06-24	Reorganized address generation and bit index generation.	Joachim Strömbergson

2015-06-24	Corrected suffixes and cleaned up product address generation.	Joachim Strömbergson

2015-06-24	(1) Untangled the word index address generator from the product logic. (2) ↵	Joachim Strömbergson
	Updated the montprod TB to match changed FSM states in montprod.
2015-06-23	Updated all modules below modexp_core has been updated to have generic ↵	Joachim Strömbergson
	operand size. Updated module integrations in modexp_core to set the operand width and address width.
2015-06-23	montprod now supports generic operand size.	Joachim Strömbergson

2015-06-23	Made the adder and shifters words size generic. Updated the montprod and ↵	Joachim Strömbergson
	residue to use the generic adder and shifters.
2015-06-22	Changed blockmem1r1w used in montprod to generic data and address widths. ↵	Joachim Strömbergson
	Updated instantiation to use generics.
2015-06-22	Adding a minor comment in the header to exmplain what the module parameters ↵	Joachim Strömbergson
	means.
2015-06-22	Changing module interface and internal defines to use symbolic widths for ↵	Joachim Strömbergson
	operand data size and addresses. We need to update counters too.
2015-06-22	Consolidated address settings, removed stale s logic mux control, removed ↵	Joachim Strömbergson
	extra lsw set.
2015-06-22	Killed off debug in RTL since we now whow info from TB.	Joachim Strömbergson

2015-06-22	Removing stale states in FSM.	Joachim Strömbergson

2015-06-22	Removing state that has been collapsed.	Joachim Strömbergson

2015-06-22	Cleanup of prodcalc.	Joachim Strömbergson

2015-06-22	Adding write control of s_mem for first iteration and adding a new stage in ↵	Joachim Strömbergson
	priority mux.
2015-06-22	Adding mux to allow integrating s_mem init with main adder loop.	Joachim Strömbergson

2015-06-18	Adding iteration flag to be used to remove zero fill of s_mem.	Joachim Strömbergson

2015-06-18	Moved s logic mux control to control fsm.	Joachim Strömbergson

2015-06-18	Correct update after linting.	Joachim Strömbergson

2015-06-18	Restored version of montprod to a version that actually works.	Joachim Strömbergson

2015-06-18	Combined case statements to make it easier to follow the sequences.	Joachim Strömbergson

2015-06-18	Update after linting after cycle collapsing.	Joachim Strömbergson

2015-06-17	(1) Collapsed the sm and sa adder states. Thisimoproves performance for ↵	Joachim Strömbergson
	modexp with 3%. (2) Updated montprod testbench to not use the now removed states. (3) Minor code cleanup to make it easier to work with for further improvements.
2015-06-17	(1) Cleaned up bit select for operand b and a. (2) Fixed name of loop ↵	Joachim Strömbergson
	counter. (3) Reordered processes to main datapath first.
2015-06-17	Fixed order of states.	Joachim Strömbergson

2015-06-16	Merge of s_mux and s_write to allow cycle collapsing.	Joachim Strömbergson

2015-06-16	Collapsing cycles for loop counter. Updating testbench to match removed cycles.	Joachim Strömbergson

2015-06-16	Collapsed done. Removes one cycle from each montprod.	Joachim Strömbergson

2015-06-15	cleanup of s mem write control.	Joachim Strömbergson

2015-06-15	Fixed the carry registers.	Joachim Strömbergson

2015-06-15	Fixed prev reg:	Joachim Strömbergson

2015-06-15	(1) Fixing up write address register fo s mem. (2) Cleanup of loop counter.	Joachim Strömbergson

2015-06-15	Cleanup and fixing name in preparation for cycle crunch.	Joachim Strömbergson

2015-05-08	Fixed RH operand size.	Joachim Strömbergson

2015-04-27	Adding localparam for debugging that had gone missing.	Joachim Strömbergson

2015-04-27	Updating modexp core to v 0.50. This version contains a working core that ↵	Joachim Strömbergson
	can perform sign and verify with big keys/values. The core builds ok in Altera and Xilinx FPGA tools. This commit also includes a new testgenerator capable of generating testbench for modexp with autgenerated test data of different lengths. The README has been updated with status and implementation results in for different FPGA devices.
2015-04-13	Adding initial versions of rtl for modexp. Montgomery multiplication works ↵	Joachim Strömbergson
	for 8192 bit operands. Modexp can build, but lacks proper control and residue generator. Memories has been tested to match block memories in Xilinx and Altera FPGAs.