diff options
Diffstat (limited to 'arch/sparc/math-emu/fcmpd.c')
| -rw-r--r-- | arch/sparc/math-emu/fcmpd.c | 33 |
1 files changed, 24 insertions, 9 deletions
diff --git a/arch/sparc/math-emu/fcmpd.c b/arch/sparc/math-emu/fcmpd.c index 8adb30d88..05a460eee 100644 --- a/arch/sparc/math-emu/fcmpd.c +++ b/arch/sparc/math-emu/fcmpd.c @@ -1,18 +1,33 @@ +/* $Id: fcmpd.c,v 1.8 1999/05/28 13:41:36 jj Exp $ + * arch/sparc/math-emu/fcmpd.c + * + * Copyright (C) 1997, 1999 Jakub Jelinek (jj@ultra.linux.cz) + * Copyright (C) 1998 Peter Maydell (pmaydell@chiark.greenend.org.uk) + * + */ + +#include "sfp-util.h" #include "soft-fp.h" #include "double.h" int FCMPD(void *rd, void *rs2, void *rs1) { + FP_DECL_EX; FP_DECL_D(A); FP_DECL_D(B); long ret; - unsigned long *fsr = rd; + unsigned long fsr; - __FP_UNPACK_D(A, rs1); - __FP_UNPACK_D(B, rs2); - FP_CMP_D(ret, B, A, 2); - if (ret == -1) - ret = 2; - - *fsr = (*fsr & ~0xc00) | (ret << 10); - return 0; + FP_UNPACK_RAW_DP(A, rs1); + FP_UNPACK_RAW_DP(B, rs2); + FP_CMP_D(ret, B, A, 3); + if (ret == 3 && (FP_ISSIGNAN_D(A) || FP_ISSIGNAN_D(B))) + FP_SET_EXCEPTION(FP_EX_INVALID); + if (!FP_INHIBIT_RESULTS) { + if (ret == -1) ret = 2; + fsr = *(long *)rd; + fsr &= ~0xc00; + fsr |= (ret << 10); + *(long *)rd = fsr; + } + FP_HANDLE_EXCEPTIONS; } |