First real program running!

main.asm

@@ -1,9 +1,22 @@
 .section .text
 .global _main
-_main:
-    li      x1, 5
-    addi    x2, x1, 45
 
-loop:
-    addi    x2, x2, 1
-    j       loop
+print:
+    li      t1, 0x80000000
+l0:
+    lb      t0, 0(a0)
+    beqz    t0, l1
+    sb      t0, 0(t1)
+    addi    a0, a0, 1
+    j       l0
+l1:
+    ret
+
+_main:
+    la      a0, my_str
+    call    print
+
+halt: j halt
+
+.section .rodata
+my_str: .string "Hello, world!\n"