wip commit

Signed-off-by: Sean Cross <sean@xobs.io>
2020-01-23 10:29:20 +08:00
parent 3c15bd68d3
commit 95951535e4
20 changed files with 506 additions and 183 deletions
--- a/asm.S
+++ b/asm.S
@ -9,20 +9,10 @@
 #endif
 #define REGBYTES (1 << LOG_REGBYTES)

-.global start_kmain
+.global return_from_interrupt
 .text
-start_kmain:
-    li		t0, (1 << 11) | (1 << 5)
-	csrw	mstatus, t0
-	csrw	mepc, a0
-    add     a0, a1, zero
-    add     a1, a2, zero
-    add     a2, a3, zero
-    add     a3, a4, zero
-    add     a4, a5, zero
-    add     a5, a6, zero
-    add     a6, a7, zero
-    add     a7, zero, zero
+return_from_interrupt:
+    la      sp, _estack
 	mret    // Return to kmain

 .global read_satp