Added runtime (kernel 2.0)

2019-10-30 23:40:01 -04:00
parent 06e5f6df1d
commit 46b09028d0
37 changed files with 569 additions and 3866 deletions
--- a/runtime/startup/vx_start.s
+++ b/runtime/startup/vx_start.s
@@ -0,0 +1,42 @@
+
+
+.type _start, @function
+.global _start
+_start:
+    li a0, 4
+    .word 0x0005006b    # tmc a0
+    csrr	a1,0x20
+    slli a1, a1, 2
+
+    la a2, 0x20000000
+    add a2, a2, a1
+    sw a1, 0(a2)
+
+    la a2, 0x40000000
+    add a2, a2, a1
+    li a3, 5
+    sw a3, 0(a2)
+
+    la a2, 0x80000000
+    add a2, a2, a1
+    li a3, 7
+    sw a3, 0(a2)
+
+    la a2, 0x60000000
+    add a2, a2, a1
+    li a3, 7
+    sw a3, 0(a2)
+
+    la a2, 0x20000000
+    add a2, a2, a1
+    lw a4, 0(a2)
+    li a0, 0
+    .word 0x0005006b    # tmc a0
+	##########################
+    # lui  sp, 0x7ffff
+    # jal  main
+    # li a0, 0
+    # .word 0x0005006b    # tmc a0
+
+
+