diff options
| author | hpa <hpa> | 2004-12-15 12:39:24 +0000 |
|---|---|---|
| committer | hpa <hpa> | 2004-12-15 12:39:24 +0000 |
| commit | 5ddecdda2e74520d252dbe50528c3baf1a004992 (patch) | |
| tree | 4f0515eb4bcee264f9424443112c09cbd05cf99b /dos/syslinux.c | |
| parent | e5b229c776a5de62121a18a981119484d367ad90 (diff) | |
| download | syslinux-5ddecdda2e74520d252dbe50528c3baf1a004992.tar.gz | |
Tweak optimizations.
Diffstat (limited to 'dos/syslinux.c')
| -rw-r--r-- | dos/syslinux.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/dos/syslinux.c b/dos/syslinux.c index 051912b3..dbab7bcc 100644 --- a/dos/syslinux.c +++ b/dos/syslinux.c @@ -50,7 +50,7 @@ int open(const char *filename, int mode) rv = 0x3D00 | mode; asm volatile("int $0x21 ; setc %0" - : "=rm" (err), "+a" (rv) + : "=abcdm" (err), "+a" (rv) : "d" (filename)); if ( err ) die("cannot open ldlinux.sys"); @@ -79,7 +79,7 @@ ssize_t write_file(int fd, const void *buf, size_t count) while ( count ) { rv = 0x4000; asm volatile("int $0x21 ; setc %0" - : "=rm" (err), "+a" (rv) + : "=abcdm" (err), "+a" (rv) : "b" (fd), "c" (count), "d" (buf)); if ( err || rv == 0 ) die("file write error"); @@ -96,7 +96,7 @@ void write_device(int drive, const void *buf, size_t nsecs, unsigned int sector) uint8_t err; asm volatile("int $0x26 ; setc %0 ; popfw" - : "=rm" (err) + : "=abcdm" (err) : "a" (drive), "b" (buf), "c" (nsecs), "d" (sector)); if ( err ) @@ -108,7 +108,7 @@ void read_device(int drive, const void *buf, size_t nsecs, unsigned int sector) uint8_t err; asm volatile("int $0x25 ; setc %0 ; popfw" - : "=rm" (err) + : "=abcdm" (err) : "a" (drive), "b" (buf), "c" (nsecs), "d" (sector)); if ( err ) @@ -121,7 +121,7 @@ void set_attributes(const char *file, int attributes) uint16_t rv = 0x4301; asm volatile("int $0x21 ; setc %0" - : "=rm" (err), "+a" (rv) + : "=abcdm" (err), "+a" (rv) : "c" (attributes), "d" (file)); if ( err ) |