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Revert "instantiate 5 4KiB arrays, aim to thrash all 4 ways"

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This reverts commit 6acf1dadda.
This commit is contained in:
Noah Limpert 2023-04-13 17:40:39 -07:00
parent d012715a60
commit b35d5bdbdb
1 changed files with 0 additions and 99 deletions
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tests/coverage/lsuGB.S
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@ -1,99 +0,0 @@
//lsuGB.S
// A set of tests meant to stress the LSU to increase coverage
// Manuel Alejandro Mendoza Manriquez mmendozamanriquez@g.hmc.edu
// Noah Limpert nlimpert@g.hmc.edu
// March 28 2023
// Test 2
//Try to thrash ! used godbolt!
// Cache ways 1,2,3 do not have SelFlush = 0
// To make SelFlush = 0 we must evict lines from ways 1,2,3
// Will load 4 words with same tags, filling 4 ways of cache
// edit and store these words so that dirty bit is set ( is this necessary?)
// Will then load 4 more words, evicting the previous 4 words
// will make SelFlush = 0 for all 4 ways.
// Load code to initialize stack, handle interrupts, terminate
#include "WALLY-init-lib.h"
main:
addi sp,sp,-32
sd s0,24(sp)
addi s0,sp,32
li t1,-20480
add sp,sp,t1
sw zero,-20(s0)
j .L2
.L3:
li a5,-4096
addi a4,s0,-16
add a4,a4,a5
lw a5,-20(s0)
slli a5,a5,2
add a5,a4,a5
lw a4,-8(a5)
li a5,-8192
addi a3,s0,-16
add a3,a3,a5
lw a5,-20(s0)
slli a5,a5,2
add a5,a3,a5
sw a4,-8(a5)
li a5,-8192
addi a4,s0,-16
add a4,a4,a5
lw a5,-20(s0)
slli a5,a5,2
add a5,a4,a5
lw a4,-8(a5)
li a5,-12288
addi a3,s0,-16
add a3,a3,a5
lw a5,-20(s0)
slli a5,a5,2
add a5,a3,a5
sw a4,-8(a5)
li a5,-12288
addi a4,s0,-16
add a4,a4,a5
lw a5,-20(s0)
slli a5,a5,2
add a5,a4,a5
lw a4,-8(a5)
li a5,-16384
addi a3,s0,-16
add a3,a3,a5
lw a5,-20(s0)
slli a5,a5,2
add a5,a3,a5
sw a4,-8(a5)
li a5,-16384
addi a4,s0,-16
add a4,a4,a5
lw a5,-20(s0)
slli a5,a5,2
add a5,a4,a5
lw a4,-8(a5)
li a5,-20480
addi a3,s0,-16
add a3,a3,a5
lw a5,-20(s0)
slli a5,a5,2
add a5,a3,a5
sw a4,-8(a5)
lw a5,-20(s0)
addiw a5,a5,1
sw a5,-20(s0)
.L2:
lw a5,-20(s0)
sext.w a4,a5
li a5,1023
ble a4,a5,.L3
nop
nop
li t1,20480
add sp,sp,t1
ld s0,24(sp)
addi sp,sp,32
j done