From: Alan Cox <alan@linux.intel.com>
Date: Fri, 10 Aug 2018 23:32:20 +0000 (+0100)
Subject: devide: save two bytes and a few clocks
X-Git-Url: https://git.ndcode.org/public/gitweb.cgi?a=commitdiff_plain;h=af1441231ff34369aa8c2a25f8d27a898742a4a2;p=FUZIX.git

devide: save two bytes and a few clocks
---

diff --git a/Kernel/dev/devide.c b/Kernel/dev/devide.c
index aa10d036..cf27f0ea 100644
--- a/Kernel/dev/devide.c
+++ b/Kernel/dev/devide.c
@@ -149,8 +149,8 @@ void devide_read_data(void) __naked
     __asm
             ld a, (_blk_op+BLKPARAM_IS_USER_OFFSET) ; blkparam.is_user
             ld hl, (_blk_op+BLKPARAM_ADDR_OFFSET)   ; blkparam.addr
-            ld b, #0                                ; setup count
-            ld c, #IDE_REG_DATA                     ; setup port number
+            ld bc, #IDE_REG_DATA                    ; setup port number
+                                                    ; and count
 #ifdef SWAPDEV
 	    cp #2
             jr nz, not_swapin
@@ -175,8 +175,8 @@ void devide_write_data(void) __naked
     __asm
             ld a, (_blk_op+BLKPARAM_IS_USER_OFFSET) ; blkparam.is_user
             ld hl, (_blk_op+BLKPARAM_ADDR_OFFSET)   ; blkparam.addr
-            ld b, #0                                ; setup count
-            ld c, #IDE_REG_DATA                     ; setup port number
+            ld bc, #IDE_REG_DATA                    ; setup port number
+                                                    ; and count
 #ifdef SWAPDEV
 	    cp #2
             jr nz, not_swapout