--- xmil/z80x/z80x_mn.x86	2004/08/08 17:45:52	1.2
+++ xmil/z80x/z80x_mn.x86	2004/08/14 12:16:18	1.4
@@ -144,18 +144,22 @@ _di:			or		byte [edi + R_Z80IFF], (1 << 
 				ret
 
 				align	16
-_ei:			and		byte [edi + R_Z80IFF], ~(1 << IFF_IFLAG)
-				movzx	ecx, word [edi + R_Z80PC]
-				call	memfetch
-				cmp		al, 0fbh
-				je		short .eiret
-				inc		byte [edi + R_Z80R]
-				inc		word [edi + R_Z80PC]
-				movzx	edx, byte [_cycles_main + eax]
-				Z80WORK	edx
-				jmp		[opcode_main + eax*4]
-.eiret:			ret
-
+_ei:			mov		al, [edi + R_Z80IFF]
+				test	al, (1 << IFF_IFLAG)
+				je		short .ed
+				and		al, ~(1 << IFF_IFLAG)
+				mov		edx, [edi + z80core_t.remainclock]
+				mov		[edi + R_Z80IFF], al
+				test	al, (1 << IFF_NMI)
+				jne		short .nextop
+				cmp		dword [edi + R_Z80REQIRQ], byte 0
+				jne		short .eventexit
+.nextop:		cmp		edx, byte 1
+				jge		short .ed
+.eventexit:		dec		edx
+				mov		dword [edi + z80core_t.remainclock], 1
+				sub		[edi + z80core_t.baseclock], edx
+.ed:			ret
 
 				align	16
 ld_nop:			ret