diff --git a/src/cpu/core_dyn_x86/decoder.h b/src/cpu/core_dyn_x86/decoder.h
index 35328bd9..10973317 100644
--- a/src/cpu/core_dyn_x86/decoder.h
+++ b/src/cpu/core_dyn_x86/decoder.h
@@ -188,6 +188,22 @@ static void dyn_check_bool_exception_al(void) {
 	used_save_info++;
 }
 
+#include "pic.h"
+
+static void dyn_check_irqrequest(void) {
+	gen_load_host(&PIC_IRQCheck,DREG(TMPB),4);
+	gen_dop_word(DOP_OR,true,DREG(TMPB),DREG(TMPB));
+	save_info[used_save_info].branch_pos=gen_create_branch_long(BR_NZ);
+	gen_releasereg(DREG(TMPB));
+	dyn_savestate(&save_info[used_save_info].state);
+	if (!decode.cycles) decode.cycles++;
+	save_info[used_save_info].cycles=decode.cycles;
+	save_info[used_save_info].eip_change=decode.code-decode.code_start;
+	if (!cpu.code.big) save_info[used_save_info].eip_change&=0xffff;
+	save_info[used_save_info].type=normal;
+	used_save_info++;
+}
+
 static void dyn_fill_blocks(void) {
 	for (Bitu sct=0; sct<used_save_info; sct++) {
 		gen_fill_branch_long(save_info[sct].branch_pos);
@@ -1791,6 +1807,7 @@ restart_prefix:
 			gen_call_function((void *)&CPU_STI,"%Rd",DREG(TMPB));
 			if (cpu.pmode) dyn_check_bool_exception(DREG(TMPB));
 			gen_releasereg(DREG(TMPB));
+			dyn_check_irqrequest();
 			if (max_opcodes<=0) max_opcodes=1;		//Allow 1 extra opcode
 			break;
 		case 0xfc:		//CLD