From 258768a81d459c85a2d6ee19a0a14202833a10e3 Mon Sep 17 00:00:00 2001
From: mark <mark@NetBSD.org>
Date: Wed, 30 Jul 1997 23:52:08 +0000
Subject: [PATCH] Use the cookie field in the podulebus tag (current unused) as
 a register shift value thus making register more flexible. Remove the
 absolute shift of 2 in all the podule read/write routines and use the tag
 cookie (passed in r0) as the shift value.

---
 sys/arch/arm32/podulebus/podulebus_io_asm.S | 24 +++++++++++++--------
 1 file changed, 15 insertions(+), 9 deletions(-)

diff --git a/sys/arch/arm32/podulebus/podulebus_io_asm.S b/sys/arch/arm32/podulebus/podulebus_io_asm.S
index 605608695a1e..15f9e01f500a 100644
--- a/sys/arch/arm32/podulebus/podulebus_io_asm.S
+++ b/sys/arch/arm32/podulebus/podulebus_io_asm.S
@@ -1,4 +1,4 @@
-/*	$NetBSD: podulebus_io_asm.S,v 1.2 1997/01/26 01:55:04 mark Exp $	*/
+/*	$NetBSD: podulebus_io_asm.S,v 1.3 1997/07/30 23:52:08 mark Exp $	*/
 
 /*
  * Copyright (c) 1997 Mark Brinicombe.
@@ -48,19 +48,22 @@ pc	.req	r15
 
 	.global	_podulebus_r_1
 _podulebus_r_1:
-	ldrb	r0, [r1, r2, lsl #2]
+	mov	r2, r2, lsl r0
+	ldrb	r0, [r1, r2]
 	mov	pc, lr
 
 	.global	_podulebus_r_2
 _podulebus_r_2:
-	ldr	r0, [r1, r2, lsl #2]
+	mov	r2, r2, lsl r0
+	ldr	r0, [r1, r2]
 	bic	r0, r0, #0xff000000
 	bic	r0, r0, #0x00ff0000
 	mov	pc, lr
 
 	.global	_podulebus_r_4
 _podulebus_r_4:
-	ldr	r0, [r1, r2, lsl #2]
+	mov	r2, r2, lsl r0
+	ldr	r0, [r1, r2]
 	mov	pc, lr
 
 	.global	_podulebus_r_8
@@ -78,19 +81,22 @@ podulebus_r_8_text:
 
 	.global	_podulebus_w_1
 _podulebus_w_1:
-	strb	r3, [r1, r2, lsl #2]
+	mov	r2, r2, lsl r0
+	strb	r3, [r1, r2]
 	mov	pc, lr
 
 	.global	_podulebus_w_2
 _podulebus_w_2:
 	mov	r3, r3, lsl #16
 	orr	r3, r3, r3, lsr #16
-	str	r3, [r1, r2, lsl #2]
+	mov	r2, r2, lsl r0
+	str	r3, [r1, r2]
 	mov	pc, lr
 
 	.global	_podulebus_w_4
 _podulebus_w_4:
-	str	r3, [r1, r2, lsl #2]
+	mov	r2, r2, lsl r0
+	str	r3, [r1, r2]
 	mov	pc, lr
 
 	.global	_podulebus_w_8
@@ -117,7 +123,7 @@ podulebus_rm_1_text:
 
 	.global	_podulebus_rm_2
 _podulebus_rm_2:
-	add	r0, r1, r2, lsl #2
+	add	r0, r1, r2, lsl r0
 	mov	r1, r3
 	ldr	r2, [sp, #0]
 	b	_insw
@@ -155,7 +161,7 @@ podulebus_wm_1_text:
 
 	.global	_podulebus_wm_2
 _podulebus_wm_2:
-	add	r0, r1, r2, lsl #2
+	add	r0, r1, r2, lsl r0
 	mov	r1, r3
 	ldr	r2, [sp, #0]
 	b	_outsw