mirror of
https://github.com/openhwgroup/cvw
synced 2025-02-11 06:05:49 +00:00
fixed CSR read-only test to have correct output
This commit is contained in:
parent
5ce8dd60c5
commit
14933a7231
@ -470,18 +470,18 @@ begin_test: // label here to jump to so we dont go through the trap handler befo
|
||||
.macro csr_r_access CSR
|
||||
// verify that a csr is accessible to read but not to write
|
||||
// Success outputs:
|
||||
// 0x2, then
|
||||
// 0x11 *** consider changing to something more meaningful
|
||||
// Fault outputs:
|
||||
// 0x2, then
|
||||
// 0xBAD *** consider changing this one as well. in general, do we need the branching if it hould cause an illegal instruction fault?
|
||||
csrr x29, \CSR
|
||||
csrwi \CSR\(), 0xA // Attempt to write a 'random' value to the CSR
|
||||
csrr x30, \CSR
|
||||
bne x30, x29, 1f // 1f represents r_access_success
|
||||
li x30, 0xBAD // Write succeeded, violating read only permissions.
|
||||
bne x30, x29, 1f // 1f represents write_access
|
||||
li x30, 0x11 // Write succeeded, violating read only permissions.
|
||||
j 2f // j r_access_end
|
||||
1: // r_access_success
|
||||
li x30, 0x11
|
||||
1: // w_access (test failed)
|
||||
li x30, 0xBAD
|
||||
2: // r_access end
|
||||
sd x30, 0(x6)
|
||||
addi x6, x6, 8
|
||||
|
Loading…
Reference in New Issue
Block a user