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52 lines
2.5 KiB
C
52 lines
2.5 KiB
C
//
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// GCC Inline Assembler version (ARM)
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//
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#ifndef __pragmas_arm_h__
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#define __pragmas_arm_h__
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#define EDUKE32_SCALER_PRAGMA(a) \
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static inline int32_t mulscale##a(int32_t eax, int32_t edx) \
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{ return dw((qw(eax) * edx) >> by(a)); } \
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\
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static inline int32_t dmulscale##a(int32_t eax, int32_t edx, int32_t esi, int32_t edi) \
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{ return dw(((qw(eax) * edx) + (qw(esi) * edi)) >> by(a)); } \
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EDUKE32_GENERATE_PRAGMAS EDUKE32_SCALER_PRAGMA(32)
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#undef EDUKE32_SCALER_PRAGMA
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static inline void swapchar(void* a, void* b) { char t = *((char*) b); *((char*) b) = *((char*) a); *((char*) a) = t; }
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static inline void swapchar2(void* a, void* b, int32_t s) { swapchar(a, b); swapchar((char*) a+1, (char*) b+s); }
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static inline void swapshort(void* a, void* b) { int16_t t = *((int16_t*) b); *((int16_t*) b) = *((int16_t*) a); *((int16_t*) a) = t; }
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static inline void swaplong(void* a, void* b) { int32_t t = *((int32_t*) b); *((int32_t*) b) = *((int32_t*) a); *((int32_t*) a) = t; }
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static inline void swapfloat(void* a, void* b) { float t = *((float*) b); *((float*) b) = *((float*) a); *((float*) a) = t; }
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static inline void swap64bit(void* a, void* b) { int64_t t = *((int64_t*) b); *((int64_t*) b) = *((int64_t*) a); *((int64_t*) a) = t; }
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static inline char readpixel(void* s) { return (*((char*) (s))); }
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static inline void drawpixel(void* s, char a) { *((char*) (s)) = a; }
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static inline int32_t klabs(int32_t a) { const uint32_t m = a >> (sizeof(int) * CHAR_BIT - 1); return (a ^ m) - m; }
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static inline int32_t ksgn(int32_t a) { return (a>0)-(a<0); }
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static inline int32_t mulscale(int32_t eax, int32_t edx, int32_t ecx) { return dw((qw(eax) * qw(edx)) >> by(ecx)); }
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static inline int32_t dmulscale(int32_t eax, int32_t edx, int32_t esi, int32_t edi, int32_t ecx) { return dw(((qw(eax) * qw(edx)) + (qw(esi) * qw(edi))) >> by(ecx)); }
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void qinterpolatedown16(intptr_t bufptr, int32_t num, int32_t val, int32_t add);
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void qinterpolatedown16short(intptr_t bufptr, int32_t num, int32_t val, int32_t add);
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void clearbuf(void* d, int32_t c, int32_t a);
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void copybuf(const void* s, void* d, int32_t c);
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void swapbuf4(void* a, void* b, int32_t c);
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void clearbufbyte(void *D, int32_t c, int32_t a);
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void copybufbyte(const void *S, void *D, int32_t c);
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void copybufreverse(const void *S, void *D, int32_t c);
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static inline int32_t krecipasm(int32_t i)
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{
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// Ken did this
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float f = (float) i; i = *(int32_t *) &f;
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return((reciptable[(i>>12)&2047]>>(((i-0x3f800000)>>23)&31))^(i>>31));
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}
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#endif
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