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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 2 | pj | 1 | |
| 2 | |||
| 3 | #ifdef I386_ASSEM |
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| 4 | static inline int get1bit(void) { |
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| 5 | extern int bitindex; |
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| 6 | extern unsigned char *wordpointer; |
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| 7 | int ret; |
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| 8 | |||
| 9 | asm("\n\t" |
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| 10 | "movl %1,%%ecx\n\t" |
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| 11 | "movzbl (%%ecx),%%eax\n\t" |
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| 12 | "movl %2,%%ecx\n\t" |
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| 13 | "incl %%ecx\n\t" |
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| 14 | "rolb %%cl,%%al\n\t" |
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| 15 | "andb $1,%%al\n\t" |
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| 16 | "movl %%ecx,%2\n\t" |
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| 17 | "andl $7,%2\n\t" |
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| 18 | "sarl $3,%%ecx\n\t" |
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| 19 | "addl %%ecx,%1\n" |
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| 20 | : "=a" (ret) |
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| 21 | : "m" (wordpointer) , "m" (bitindex) |
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| 22 | : "eax" , "ecx" , "memory" ); |
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| 23 | return ret; |
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| 24 | } |
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| 25 | #endif |
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| 26 | |||
| 27 | |||
| 28 |