Xavi/cvw
1
0
Fork 0
forked from Github_Repos/cvw
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Fixed exception handling to handle ecalls properly

Browse Source
This commit is contained in:
Alexa Wright 2023-04-13 09:23:32 -07:00
parent f54868f19d
commit f8a8c43307
1 changed files with 1 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
tests/coverage/WALLY-init-lib.h
View File

@ -66,8 +66,7 @@ interrupt: # must be a timer interrupt
j trap_return # clean up and return j trap_return # clean up and return
exception: exception:
li t0, 2 csrr t0, mcause
csrr t1, mcause
li t1, 8 # is it an ecall trap? li t1, 8 # is it an ecall trap?
andi t0, t0, 0xFC # if CAUSE = 8, 9, or 11 andi t0, t0, 0xFC # if CAUSE = 8, 9, or 11
bne t0, t1, trap_return # ignore other exceptions bne t0, t1, trap_return # ignore other exceptions