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EVTCODE_TO_MAP_INDEX - tweak to help gcc produce better code.

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This commit is contained in:
uwe 2006-01-24 23:51:42 +00:00
parent aeaada2a1b
commit 4baa2e17dd
1 changed files with 3 additions and 2 deletions
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5
sys/arch/sh3/include/intr.h
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@ -1,4 +1,4 @@
/* $NetBSD: intr.h,v 1.21 2005/12/11 12:18:58 christos Exp $ */
/* $NetBSD: intr.h,v 1.22 2006/01/24 23:51:42 uwe Exp $ */
/*-
* Copyright (c) 2002 The NetBSD Foundation, Inc.
@ -72,7 +72,8 @@ struct intc_intrhand {
int ih_idx; /* evtcode -> intrhand mapping */
};
#define EVTCODE_TO_MAP_INDEX(x) (((x) - 0x200) >> 5)
/* from 0x200 by 0x20 -> from 0 by 1 */
#define EVTCODE_TO_MAP_INDEX(x) (((x) >> 5) - 0x10)
#define EVTCODE_TO_IH_INDEX(x) \
__intc_evtcode_to_ih[EVTCODE_TO_MAP_INDEX(x)]
#define EVTCODE_IH(x) (&__intc_intrhand[EVTCODE_TO_IH_INDEX(x)])