From f5e647de0d9e135379a22642767dc43a38691178 Mon Sep 17 00:00:00 2001
From: Stephen Marz <stephen.marz@utk.edu>
Date: Sun, 24 May 2020 13:34:39 -0400
Subject: [PATCH] Add gettime to syscalls

---
 risc_v/src/syscall.rs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/risc_v/src/syscall.rs b/risc_v/src/syscall.rs
index f8de764..b070e8b 100755
--- a/risc_v/src/syscall.rs
+++ b/risc_v/src/syscall.rs
@@ -204,6 +204,11 @@ pub unsafe fn do_syscall(mepc: usize, frame: *mut TrapFrame) -> usize {
 			// println!("TX: {} {} {} {} {}", dev, x, y, width, height);
 			gpu::transfer(dev, x, y, width, height);
 	
+			mepc + 4
+		},
+		1062 => {
+			// gettime
+			(*frame).regs[Registers::A0 as usize] = crate::cpu::get_mtime();
 			mepc + 4
 		}
 		_ => {