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Fixed exception handling to handle ecalls properly

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This commit is contained in:
Alexa Wright 2023-04-13 09:23:32 -07:00
parent 10be07857c
commit 23d0d45bf6
1 changed files with 1 additions and 2 deletions
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3
tests/coverage/WALLY-init-lib.h
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@ -66,8 +66,7 @@ interrupt: # must be a timer interrupt
j trap_return # clean up and return
exception:
li t0, 2
csrr t1, mcause
csrr t0, mcause
li t1, 8 # is it an ecall trap?
andi t0, t0, 0xFC # if CAUSE = 8, 9, or 11
bne t0, t1, trap_return # ignore other exceptions