diff --git a/assets-fx/img/opt_switch_ctx.png b/assets-fx/img/opt_switch_ctx.png
index 138baac..ad1e606 100644
Binary files a/assets-fx/img/opt_switch_ctx.png and b/assets-fx/img/opt_switch_ctx.png differ
diff --git a/assets-fx/img/opt_switch_ctx_sh3.png b/assets-fx/img/opt_switch_ctx_sh3.png
index 588b385..c8c7c6f 100644
Binary files a/assets-fx/img/opt_switch_ctx_sh3.png and b/assets-fx/img/opt_switch_ctx_sh3.png differ
diff --git a/src/gint/switch.c b/src/gint/switch.c
index 5c58ada..7300700 100644
--- a/src/gint/switch.c
+++ b/src/gint/switch.c
@@ -84,6 +84,24 @@ static void ctx_etmu(int start)
 		show_etmu(2*i+1, i+start, t);
 	}
 }
+static void ctx_intc()
+{
+	uint16_t *IPR = driver_ctx("INTC");
+
+	if(isSH3())
+	{
+		row_print(1,1, "A:%04x B:%04x C:%04x", IPR[0], IPR[1], IPR[2]);
+		row_print(2,1, "D:%04x E:%04x F:%04x", IPR[3], IPR[4], IPR[5]);
+		row_print(3,1, "G:%04x H:%04x",        IPR[6], IPR[7]);
+	}
+	else
+	{
+		row_print(1,1, "A:%04x B:%04x C:%04x", IPR[0], IPR[1], IPR[2]);
+		row_print(2,1, "D:%04x E:%04x F:%04x", IPR[3], IPR[4], IPR[5]);
+		row_print(3,1, "G:%04x H:%04x I:%04x", IPR[6], IPR[7], IPR[8]);
+		row_print(4,1, "J:%04x K:%04x L:%04x", IPR[9],IPR[10],IPR[11]);
+	}
+}
 #endif /* FX9860G */
 
 #ifdef FXCG50
@@ -177,6 +195,7 @@ static void system_contexts(void)
 		#ifdef FX9860G
 		if(tab == 3) ctx_etmu(0);
 		if(tab == 4) ctx_etmu(3);
+		if(tab == 5) ctx_intc();
 		#endif
 
 		#ifdef FXCG50
@@ -190,6 +209,7 @@ static void system_contexts(void)
 		if(key == KEY_F2) tab = 1;
 		if(key == KEY_F3) tab = 2;
 		if(key == KEY_F4) tab = 3;
+		if(key == KEY_F6) tab = 5;
 
 		#ifdef FX9860G
 		if(key == KEY_F5 && isSH3()) tab = 4;
diff --git a/src/regs/regs.c b/src/regs/regs.c
index 48feb89..2f74e91 100644
--- a/src/regs/regs.c
+++ b/src/regs/regs.c
@@ -1,4 +1,5 @@
 #include <gint/mpu/intc.h>
+#include <gint/mpu/rtc.h>
 #include <gint/hardware.h>
 #include <gint/display.h>
 #include <gint/keyboard.h>
@@ -7,26 +8,39 @@
 
 void gintctl_regs(void)
 {
-	if(isSH3()) return;
-
-	#ifdef FX9860G
-	#warning gintctl_regs not implemented on SH3
-	#endif
-
-	#define IPR(X) SH7305_INTC._->IPR##X.word
-	#define IMR(X) SH7305_INTC.MSK->IMR##X
-
 	dclear(C_WHITE);
 	row_title("Register browser");
 
-	row_print(2, 1, "A:%04x B:%04x C:%04x", IPR(A), IPR(B), IPR(C));
-	row_print(3, 1, "D:%04x E:%04x F:%04x", IPR(D), IPR(E), IPR(F));
-	row_print(4, 1, "G:%04x H:%04x I:%04x", IPR(G), IPR(H), IPR(I));
-	row_print(5, 1, "J:%04x K:%04x L:%04x", IPR(J), IPR(K), IPR(L));
+	if(isSH3())
+	{
+		#define IPR(X) (*SH7705_INTC._.IPR##X).word
+		row_print(2,1, "A:%04x B:%04x C:%04x", IPR(A), IPR(B), IPR(C));
+		row_print(3,1, "D:%04x E:%04x F:%04x", IPR(D), IPR(E), IPR(F));
+		row_print(4,1, "G:%04x H:%04x",        IPR(G), IPR(H));
+
+		row_print(6, 1, "RCR1:%02x RCR2:%02x",
+			SH7705_RTC.RCR1.byte,
+			SH7705_RTC.RCR2.byte
+		);
+		#undef IPR
+	}
+	else
+	{
+		#define IPR(X) SH7305_INTC._->IPR##X.word
+		row_print(2,1, "A:%04x B:%04x C:%04x", IPR(A), IPR(B), IPR(C));
+		row_print(3,1, "D:%04x E:%04x F:%04x", IPR(D), IPR(E), IPR(F));
+		row_print(4,1, "G:%04x H:%04x I:%04x", IPR(G), IPR(H), IPR(I));
+		row_print(5,1, "J:%04x K:%04x L:%04x", IPR(J), IPR(K), IPR(L));
+		#undef IPR
+	}
 
 	dupdate();
 	getkey();
 
+	if(isSH3()) return;
+
+	#define IMR(X) SH7305_INTC.MSK->IMR##X
+
 	dclear(C_WHITE);
 	row_title("Register browser");