diff options
| author | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2020-11-28 01:14:13 +0100 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2020-11-28 01:15:27 +0100 |
| commit | 0b1f1658732cd0e38ecb84a98b3bdf7a97a3b122 (patch) | |
| tree | ed8e77b2fae5faa39eb9b507e4ea6b2686f322de /i386 | |
| parent | 5576957a69642e74753e56ee0767b663378d7bca (diff) | |
x86: allow using 8bit constants in in/out instructions
* i386/i386/pio.h (inl, inw, inb, outl, outw, outb): Add N constraint
alternative on port.
(outl): Cast data to unsigned int.
Diffstat (limited to 'i386')
| -rw-r--r-- | i386/i386/pio.h | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/i386/i386/pio.h b/i386/i386/pio.h index fa0bab9f..c488fbb2 100644 --- a/i386/i386/pio.h +++ b/i386/i386/pio.h @@ -33,29 +33,29 @@ #define inl(y) \ ({ unsigned int _tmp__; \ - asm volatile("inl %1, %0" : "=a" (_tmp__) : "d" ((unsigned short)(y))); \ + asm volatile("inl %1, %0" : "=a" (_tmp__) : "dN" ((unsigned short)(y))); \ _tmp__; }) #define inw(y) \ ({ unsigned short _tmp__; \ - asm volatile("inw %1, %0" : "=a" (_tmp__) : "d" ((unsigned short)(y))); \ + asm volatile("inw %1, %0" : "=a" (_tmp__) : "dN" ((unsigned short)(y))); \ _tmp__; }) #define inb(y) \ ({ unsigned char _tmp__; \ - asm volatile("inb %1, %0" : "=a" (_tmp__) : "d" ((unsigned short)(y))); \ + asm volatile("inb %1, %0" : "=a" (_tmp__) : "dN" ((unsigned short)(y))); \ _tmp__; }) #define outl(x, y) \ -{ asm volatile("outl %0, %1" : : "a" (y) , "d" ((unsigned short)(x))); } +{ asm volatile("outl %0, %1" : : "a" ((unsigned int)(y)) , "dN" ((unsigned short)(x))); } #define outw(x, y) \ -{ asm volatile("outw %0, %1" : : "a" ((unsigned short)(y)) , "d" ((unsigned short)(x))); } +{ asm volatile("outw %0, %1" : : "a" ((unsigned short)(y)) , "dN" ((unsigned short)(x))); } #define outb(x, y) \ -{ asm volatile("outb %0, %1" : : "a" ((unsigned char)(y)) , "d" ((unsigned short)(x))); } +{ asm volatile("outb %0, %1" : : "a" ((unsigned char)(y)) , "dN" ((unsigned short)(x))); } #endif /* _I386_PIO_H_ */ |