From c9c4555f8d38053ed2da4b0f81fd86301a14d8cb Mon Sep 17 00:00:00 2001
From: Tobias Klauser <tklauser@distanz.ch>
Date: Fri, 12 Nov 2010 13:11:18 +0100
Subject: Implement more instructions

---
 nios2.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

(limited to 'nios2.c')

diff --git a/nios2.c b/nios2.c
index 4586c20..87eb3f3 100644
--- a/nios2.c
+++ b/nios2.c
@@ -17,6 +17,22 @@
 void nios2_cpu_reset(struct nios2 *cpu)
 {
 	memset(cpu, 0x00, sizeof(struct nios2));
+	cpu->mode = NIOS2_SUPERVISOR_MODE;
+}
+
+bool nios2_in_user_mode(struct nios2 *cpu)
+{
+	if (!cpu->has_mmu)
+		return false;
+	else if (cpu->mode != NIOS2_USER_MODE)
+		return false;
+	else
+		return true;
+}
+
+bool nios2_in_supervisor_mode(struct nios2 *cpu)
+{
+	return !nios2_in_user_mode(cpu);
 }
 
 uint32_t nios2_cpu_fetch_instr(struct nios2 *cpu, uint32_t *mem_base)
-- 
cgit v1.2.3-54-g00ecf