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Improved testing of pmd in priv.

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harshinisrinath 2023-06-16 17:13:54 -07:00
parent 46b83ad6a4
commit f9d3944cc5
1 changed files with 12 additions and 0 deletions
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12
tests/coverage/priv.S
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@ -27,6 +27,18 @@
#include "WALLY-init-lib.h"
main:
# Tests sret in machine mode
la t1, sretdone
csrw sepc, t1
sret
sretdone:
addi t2, x0, 42
# switch to user mode
li a0, 0
ecall
sret #should be treated as illegal instruction
mret #mret in user mode and should be illegal
# switch to supervisor mode
li a0, 1