X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?p=pintos-anon;a=blobdiff_plain;f=doc%2Fuserprog.texi;h=87732098e2dbaa7e8438d433b5d68d7aa7a00406;hp=bab70ec7c178094f1e1ef581b8dc18648c761acc;hb=575dc45e34db19ee7808c116e93485b37e0df716;hpb=a8e7532e684e4ea92a06d4eaf0d9ab714e4c2ad2 diff --git a/doc/userprog.texi b/doc/userprog.texi index bab70ec..8773209 100644 --- a/doc/userprog.texi +++ b/doc/userprog.texi @@ -415,7 +415,7 @@ provide a little bit of helpful code: Returns true if successful, false if USRC is invalid. */ static inline bool get_user (uint8_t *kdst, const uint8_t *usrc) { int eax; - asm ("mov %%eax, offset 1f; mov %%al, %2; mov %0, %%al; 1:" + asm ("movl $1f, %%eax; movb %2, %%al; movb %%al, %0; 1:" : "=m" (*kdst), "=&a" (eax) : "m" (*usrc)); return eax != 0; } @@ -424,7 +424,7 @@ static inline bool get_user (uint8_t *kdst, const uint8_t *usrc) { Returns true if successful, false if UDST is invalid. */ static inline bool put_user (uint8_t *udst, uint8_t byte) { int eax; - asm ("mov %%eax, offset 1f; mov %0, %b2; 1:" + asm ("movl $1f, %%eax; movb %b2, %0; 1:" : "=m" (*udst), "=&a" (eax) : "r" (byte)); return eax != 0; }