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arch/powerpc/math-emu/fmadds.c
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#include <linux/types.h> #include <linux/errno.h> #include <asm/uaccess.h> |
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#include <asm/sfp-machine.h> #include <math-emu/soft-fp.h> #include <math-emu/double.h> #include <math-emu/single.h> |
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int fmadds(void *frD, void *frA, void *frB, void *frC) { FP_DECL_D(R); FP_DECL_D(A); FP_DECL_D(B); FP_DECL_D(C); FP_DECL_D(T); |
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FP_DECL_EX; |
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#ifdef DEBUG |
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printk("%s: %p %p %p %p ", __func__, frD, frA, frB, frC); |
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#endif |
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FP_UNPACK_DP(A, frA); FP_UNPACK_DP(B, frB); FP_UNPACK_DP(C, frC); |
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#ifdef DEBUG printk("A: %ld %lu %lu %ld (%ld) ", A_s, A_f1, A_f0, A_e, A_c); printk("B: %ld %lu %lu %ld (%ld) ", B_s, B_f1, B_f0, B_e, B_c); printk("C: %ld %lu %lu %ld (%ld) ", C_s, C_f1, C_f0, C_e, C_c); #endif if ((A_c == FP_CLS_INF && C_c == FP_CLS_ZERO) || (A_c == FP_CLS_ZERO && C_c == FP_CLS_INF)) |
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FP_SET_EXCEPTION(EFLAG_VXIMZ); |
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FP_MUL_D(T, A, C); if (T_s != B_s && T_c == FP_CLS_INF && B_c == FP_CLS_INF) |
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FP_SET_EXCEPTION(EFLAG_VXISI); |
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FP_ADD_D(R, T, B); #ifdef DEBUG printk("D: %ld %lu %lu %ld (%ld) ", R_s, R_f1, R_f0, R_e, R_c); #endif |
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__FP_PACK_DS(frD, R); return FP_CUR_EXCEPTIONS; |
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} |