1 files changed, 13 insertions, 0 deletions
diff --git a/libgloss/iq2000/trap.c b/libgloss/iq2000/trap.c
new file mode 100644
index 000000000..217cef233
--- /dev/null
+++ b/libgloss/iq2000/trap.c
@@ -0,0 +1,13 @@
+// Perform a system call.
+// Unused parameters should be set to 0.
+int __trap0(unsigned long func, unsigned long p1, unsigned long p2, unsigned long p3)
+{
+  int ret = 0;
+  asm volatile ("nop\n\tor %%4,%%0,%0" : : "r"(func));
+  asm volatile ("nop\n\tor %%5,%%0,%0" : : "r"(p1));
+  asm volatile ("nop\n\tor %%6,%%0,%0" : : "r"(p2));
+  asm volatile ("nop\n\tor %%7,%%0,%0" : : "r"(p3));
+  asm volatile ("nop\n\tor %%11,%%0,%0" : : "r"(func));
+  asm volatile ("syscall\n\tnop\n\tor %0,%%0,%%2" : "=r"(ret));
+  return ret;
+}