--- drivers/ps2/smap.c.old	Thu Apr 19 11:01:50 2001
+++ drivers/ps2/smap.c	Sun Feb 24 03:15:34 2002
@@ -129,9 +129,36 @@
 	SMAPREG16(smap,SMAP_TXFIFO_WR_PTR) = (smap->txbwp & 0x0FFC);
 
 	datap = (u_int32_t *)smap->txbuf;
+#if 0
 	for (i = 0; i < txlen; i += 4) {	/* memory -> FIFO */
 		SMAPREG32(smap,SMAP_TXFIFO_DATA) = *datap++;
 	}
+#else
+	/* use assembly for speed  --achurch 2002/02/24 */
+	if (txlen & 4) {
+		SMAPREG32(smap,SMAP_TXFIFO_DATA) = *datap++;
+	}
+	if (txlen >= 8) {
+		register u_int32_t *src __asm__("$12");
+		register u_int32_t *dest __asm__("$13");
+		register u_int32_t count __asm__("$14");
+		src = datap;
+		dest = (u_int32_t *)smap->base;
+		count = txlen - 8;
+		asm(".Ltx:\
+			slt	$15,$0,$14;\
+			lw	$8,0($12);\
+			addi	$14,$14,-8;\
+			lw	$9,4($12);\
+			addiu	$12,$12,8;\
+			sw	$8,0x1100($13);\
+			sw	$9,0x1100($13);\
+			bnez	$15,.Ltx"
+		    : /* no outputs */
+		    : "r" (src), "r" (dest), "r" (count)
+		    : "$8", "$9", "$15");
+	}
+#endif
 	if (smap->flags & SMAP_F_PRINT_PKT) {
 		printk("%s: xmit: mem->fifo done, len=%d,%d,ptr=0x%04x\n",
 				net_dev->name,skb->len,txlen,smap->txbwp);