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Ross Thompson 2023-01-20 12:41:57 -06:00
parent 95de716a17
commit 7e96f3e8f7
1 changed files with 5 additions and 3 deletions
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pipelined/src/cache/cache.sv vendored
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@ -6,6 +6,8 @@
// //
// Purpose: Storage for data and meta data. // Purpose: Storage for data and meta data.
// //
// Documentation: RISC-V System on Chip Design Chapter 7 (Figures 7.9, 7.11, and 7.20)
//
// A component of the CORE-V-WALLY configurable RISC-V project. // A component of the CORE-V-WALLY configurable RISC-V project.
// //
// Copyright (C) 2021-23 Harvey Mudd College & Oklahoma State University // Copyright (C) 2021-23 Harvey Mudd College & Oklahoma State University
@ -63,11 +65,11 @@ module cache #(parameter LINELEN, NUMLINES, NUMWAYS, LOGBWPL, WORDLEN, MUXINTE
localparam SETLEN = $clog2(NUMLINES); // Number of set bits localparam SETLEN = $clog2(NUMLINES); // Number of set bits
localparam SETTOP = SETLEN+OFFSETLEN; // Number of set plus offset bits localparam SETTOP = SETLEN+OFFSETLEN; // Number of set plus offset bits
localparam TAGLEN = `PA_BITS - SETTOP; // Number of tag bits localparam TAGLEN = `PA_BITS - SETTOP; // Number of tag bits
localparam WORDSPERLINE = LINELEN/WORDLEN; // Number of words in cache line localparam CACHEWORDSPERLINE = LINELEN/WORDLEN;// Number of words in cache line
localparam LOGCWPL = $clog2(CACHEWORDSPERLINE);// Log2 of ^
localparam FLUSHADRTHRESHOLD = NUMLINES - 1; // Used to determine when flush is complete localparam FLUSHADRTHRESHOLD = NUMLINES - 1; // Used to determine when flush is complete
localparam LOGLLENBYTES = $clog2(WORDLEN/8); // Number of bits to address a word localparam LOGLLENBYTES = $clog2(WORDLEN/8); // Number of bits to address a word
localparam CACHEWORDSPERLINE = `DCACHE_LINELENINBITS/WORDLEN; // *** see if this is the same as WORDSPERLINE
localparam LOGCWPL = $clog2(CACHEWORDSPERLINE); // ***
logic SelAdr; logic SelAdr;
logic [1:0] AdrSelMuxSel; logic [1:0] AdrSelMuxSel;