processes and multitasking

[zos] / usermain.s

diff --git a/usermain.s b/usermain.s
new file mode 100644 (file)
index 0000000..951baa3
--- /dev/null
+++ b/usermain.s
@@ -0,0 +1,14 @@
+global usermain:function
+
+usermain:
+       xor r12, r12
+.redo
+       inc r12
+       mov rsi, r12
+       mov eax, 0xca11d00d
+       mov rdi, 100
+       syscall
+       cmp r13, 4
+       jl .redo
+       int 0x99
+       jmp .redo