diff options
| author | Christian Cunningham <cc@localhost> | 2022-02-01 17:19:16 -0700 |
|---|---|---|
| committer | Christian Cunningham <cc@localhost> | 2022-02-01 17:19:16 -0700 |
| commit | 36f2d87ee57e841be5fe60f6430bdd167f9f03af (patch) | |
| tree | 4668df28fa099cb1111cd7b4657ce7ef4c5db290 /src/exceptions | |
| parent | 352c8713ddb99f4b9f3c73b5b6b8bc9e83f6b6bd (diff) | |
Added spinlock condition
Diffstat (limited to 'src/exceptions')
| -rw-r--r-- | src/exceptions/svc.S | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/src/exceptions/svc.S b/src/exceptions/svc.S index a5e9982..d1fcbc0 100644 --- a/src/exceptions/svc.S +++ b/src/exceptions/svc.S @@ -5,9 +5,6 @@ svc: stmfd sp!, {r0-r12,lr} ldr r0, [lr, #-4] bic r0, #0xFF000000 - // SVC #0 returns to supervisor mode - // TODO: Make supervisor mode return to a specific location - // (rather than to a user location) such as the kernel loop cmp r0, #3 bgt svc_exit beq svc_000003 @@ -27,7 +24,7 @@ svc_000002: b schedule svc_000003: ldr r3, =scheduler - ldr r2, [r3, #0] + ldr r2, [r3, #0] // struct Thread* rthread ldr r1, [r2, #8] // sp_base cmp r1, #-1 beq svc_exit |