diff options
Diffstat (limited to 'arch/i386/boot/tty.c')
| -rw-r--r-- | arch/i386/boot/tty.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/arch/i386/boot/tty.c b/arch/i386/boot/tty.c index a8db78736b0..f3f14bd2637 100644 --- a/arch/i386/boot/tty.c +++ b/arch/i386/boot/tty.c @@ -31,7 +31,7 @@ void __attribute__((section(".inittext"))) putchar(int ch) /* int $0x10 is known to have bugs involving touching registers it shouldn't. Be extra conservative... */ - asm volatile("pushal; int $0x10; popal" + asm volatile("pushal; pushw %%ds; int $0x10; popw %%ds; popal" : : "b" (0x0007), "c" (0x0001), "a" (0x0e00|ch)); } @@ -54,9 +54,9 @@ static u8 gettime(void) u16 ax = 0x0200; u16 cx, dx; - asm("int $0x1a" - : "+a" (ax), "=c" (cx), "=d" (dx) - : : "ebx", "esi", "edi"); + asm volatile("int $0x1a" + : "+a" (ax), "=c" (cx), "=d" (dx) + : : "ebx", "esi", "edi"); return dx >> 8; } @@ -67,7 +67,7 @@ static u8 gettime(void) int getchar(void) { u16 ax = 0; - asm("int $0x16" : "+a" (ax)); + asm volatile("int $0x16" : "+a" (ax)); return ax & 0xff; } @@ -75,9 +75,9 @@ int getchar(void) static int kbd_pending(void) { u8 pending; - asm("int $0x16; setnz %0" - : "=rm" (pending) - : "a" (0x0100)); + asm volatile("int $0x16; setnz %0" + : "=rm" (pending) + : "a" (0x0100)); return pending; } |