diff --git a/src/emulation.c b/src/emulation.c
index c29c0dd..5803f1b 100644
--- a/src/emulation.c
+++ b/src/emulation.c
@@ -10,16 +10,8 @@ emul_lda(rk65c02emu_t *e, instruction_t *i)
 
 	e->regs.A = instruction_data_read_1(e, &id, i);
 
-	/* adjust status flags */
-	if (e->regs.A & NEGATIVE)
-		e->regs.P |= P_NEGATIVE;
-	else
-		e->regs.P &= ~P_NEGATIVE;
-
-	if (e->regs.A == 0)
-		e->regs.P |= P_ZERO;
-	else
-		e->regs.P &= ~P_ZERO;
+	instruction_status_adjust_zero(e->regs.A);
+	instruction_status_adjust_negative(e->regs.A);
 }
 
 void
diff --git a/src/instruction.c b/src/instruction.c
index 6c492c6..40b4824 100644
--- a/src/instruction.c
+++ b/src/instruction.c
@@ -144,6 +144,24 @@ instruction_decode(uint8_t opcode)
 	return id;
 }
 
+void
+instruction_status_adjust_zero(rk65c02emu_t *e, uint8_t regval)
+{
+	if (regval == 0)
+		e->regs.P |= P_ZERO;
+	else
+		e->regs.P &= ~P_ZERO;
+}
+
+void
+instruction_status_adjust_negative(rk65c02emu_t *e, uint8_t regval)
+{
+	if (regval & NEGATIVE)
+		e->regs.P |= P_NEGATIVE;
+	else    
+		e->regs.P &= ~P_NEGATIVE;
+}
+
 uint8_t
 instruction_data_read_1(rk65c02emu_t *e, instrdef_t *id, instruction_t *i)
 {
diff --git a/src/instruction.h b/src/instruction.h
index 4075cae..71760a2 100644
--- a/src/instruction.h
+++ b/src/instruction.h
@@ -44,6 +44,8 @@ instrdef_t instruction_decode(uint8_t);
 void instruction_print(instruction_t *);
 void disassemble(bus_t *, uint16_t);
 uint8_t instruction_data_read_1(rk65c02emu_t *, instrdef_t *, instruction_t *);
+void instruction_status_adjust_zero(rk65c02emu_t *, uint8_t);
+void instruction_status_adjust_negative(rk65c02emu_t *, uint8_t);
 //void instruction_execute(rk65c02emu_t *, instruction_t *);
 
 #endif /* _INSTRUCTION_H_ */