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| author | Helge Deller <deller@gmx.de> | 2021-02-11 14:56:22 +0100 |
|---|---|---|
| committer | Helge Deller <deller@gmx.de> | 2021-09-24 11:10:17 +0200 |
| commit | 1586812b4d5d4d3f1c9a345fa153d8cda41262da (patch) | |
| tree | b8df1716da7842fbea63471cfa1ad9ee351a68e6 | |
| parent | 9ad8204cdee38c403de1f40b189388fdd3daba7c (diff) | |
| download | seabios-hppa-1586812b4d5d4d3f1c9a345fa153d8cda41262da.zip seabios-hppa-1586812b4d5d4d3f1c9a345fa153d8cda41262da.tar.gz seabios-hppa-1586812b4d5d4d3f1c9a345fa153d8cda41262da.tar.bz2 | |
string.c: reimplement mem*_far() functions for PA-RISC
Signed-off-by: Helge Deller <deller@gmx.de>
| -rw-r--r-- | src/string.c | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/src/string.c b/src/string.c index adb8198..11a96f3 100644 --- a/src/string.c +++ b/src/string.c @@ -86,24 +86,33 @@ strcmp(const char *s1, const char *s2) inline void memset_far(u16 d_seg, void *d_far, u8 c, size_t len) { +#if CONFIG_X86 SET_SEG(ES, d_seg); asm volatile( "rep stosb %%es:(%%di)" : "+c"(len), "+D"(d_far) : "a"(c), "m" (__segment_ES) : "cc", "memory"); +#else + memset(d_far, c, len); +#endif } inline void memset16_far(u16 d_seg, void *d_far, u16 c, size_t len) { len /= 2; +#if CONFIG_X86 SET_SEG(ES, d_seg); asm volatile( "rep stosw %%es:(%%di)" : "+c"(len), "+D"(d_far) : "a"(c), "m" (__segment_ES) : "cc", "memory"); +#else + while (len) + ((u16 *)d_far)[--len] = c; +#endif } void * @@ -126,6 +135,7 @@ void memset_fl(void *ptr, u8 val, size_t size) inline void memcpy_far(u16 d_seg, void *d_far, u16 s_seg, const void *s_far, size_t len) { +#if CONFIG_X86 SET_SEG(ES, d_seg); u16 bkup_ds; asm volatile( @@ -136,6 +146,9 @@ memcpy_far(u16 d_seg, void *d_far, u16 s_seg, const void *s_far, size_t len) : "=&r"(bkup_ds), "+c"(len), "+S"(s_far), "+D"(d_far) : "r"(s_seg), "m" (__segment_ES) : "cc", "memory"); +#else + memcpy(d_far, s_far, len); +#endif } inline void @@ -149,13 +162,14 @@ memcpy_fl(void *d_fl, const void *s_fl, size_t len) memcpy(d_fl, s_fl, len); } -void * +void * __VISIBLE #undef memcpy memcpy(void *d1, const void *s1, size_t len) #if MODESEGMENT == 0 #define memcpy __builtin_memcpy #endif { +#if CONFIG_X86 SET_SEG(ES, GET_SEG(SS)); void *d = d1; if (((u32)d1 | (u32)s1 | len) & 3) { @@ -173,6 +187,13 @@ memcpy(void *d1, const void *s1, size_t len) : "+c"(len), "+S"(s1), "+D"(d) : "m" (__segment_ES) : "cc", "memory"); return d1; +#else + char *d = (char *)d1; + char *s = (char *)s1; + while (len--) + *d++ = *s++; + return d1; +#endif } // Copy to/from memory mapped IO. IO mem is very slow, so yield @@ -180,6 +201,7 @@ memcpy(void *d1, const void *s1, size_t len) void iomemcpy(void *d, const void *s, u32 len) { +#if CONFIG_X86 ASSERT32FLAT(); yield(); while (len > 3) { @@ -197,6 +219,9 @@ iomemcpy(void *d, const void *s, u32 len) if (len) // Copy any remaining bytes. memcpy(d, s, len); +#else + memcpy(d, s, len); +#endif } void * |