Update.

1999-12-29  Ulrich Drepper  <drepper@cygnus.com>

	* soft-fp/*: Tons of new files to implement floating-point arithmetic
	in software.
	Contributed by  Richard Henderson, Jakub Jelinek and others.

2 files changed, 94 insertions, 0 deletions

diff --git a/soft-fp/sysdeps/mips/mips64/sfp-machine.h b/soft-fp/sysdeps/mips/mips64/sfp-machine.h
new file mode 100644
index 0000000000..3f9d3abb8c
--- /dev/null
+++ b/soft-fp/sysdeps/mips/mips64/sfp-machine.h
@@ -0,0 +1,47 @@
+#define _FP_W_TYPE_SIZE		64
+#define _FP_W_TYPE		unsigned long
+#define _FP_WS_TYPE		signed long
+#define _FP_I_TYPE		long
+
+#define _FP_MUL_MEAT_S(R,X,Y)					\
+  _FP_MUL_MEAT_1_imm(_FP_WFRACBITS_S,R,X,Y)
+#define _FP_MUL_MEAT_D(R,X,Y)					\
+  _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm)
+#define _FP_MUL_MEAT_Q(R,X,Y)					\
+  _FP_MUL_MEAT_2_wide_3mul(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)
+
+#define _FP_DIV_MEAT_S(R,X,Y)	_FP_DIV_MEAT_1_imm(S,R,X,Y,_FP_DIV_HELP_imm)
+#define _FP_DIV_MEAT_D(R,X,Y)	_FP_DIV_MEAT_1_udiv(D,R,X,Y)
+#define _FP_DIV_MEAT_Q(R,X,Y)	_FP_DIV_MEAT_2_udiv(Q,R,X,Y)
+
+#define _FP_NANFRAC_S		((_FP_QNANBIT_S << 1) - 1)
+#define _FP_NANFRAC_D		((_FP_QNANBIT_D << 1) - 1)
+#define _FP_NANFRAC_Q		((_FP_QNANBIT_Q << 1) - 1), -1
+#define _FP_NANSIGN_S		0
+#define _FP_NANSIGN_D		0
+#define _FP_NANSIGN_Q		0
+
+#define _FP_KEEPNANFRACP 1
+/* From my experiments it seems X is chosen unless one of the
+   NaNs is sNaN,  in which case the result is NANSIGN/NANFRAC.  */
+#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP)			\
+  do {								\
+    if ((_FP_FRAC_HIGH_RAW_##fs(X) |				\
+	 _FP_FRAC_HIGH_RAW_##fs(Y)) & _FP_QNANBIT_##fs)		\
+      {								\
+	R##_s = _FP_NANSIGN_##fs;				\
+        _FP_FRAC_SET_##wc(R,_FP_NANFRAC_##fs);			\
+      }								\
+    else							\
+      {								\
+	R##_s = X##_s;						\
+        _FP_FRAC_COPY_##wc(R,X);				\
+      }								\
+    R##_c = FP_CLS_NAN;						\
+  } while (0)
+
+#define FP_EX_INVALID           (1 << 4)
+#define FP_EX_DIVZERO           (1 << 3)
+#define FP_EX_OVERFLOW          (1 << 2)
+#define FP_EX_UNDERFLOW         (1 << 1)
+#define FP_EX_INEXACT           (1 << 0)
diff --git a/soft-fp/sysdeps/mips/sfp-machine.h b/soft-fp/sysdeps/mips/sfp-machine.h
new file mode 100644
index 0000000000..575225a69b
--- /dev/null
+++ b/soft-fp/sysdeps/mips/sfp-machine.h
@@ -0,0 +1,47 @@
+#define _FP_W_TYPE_SIZE		32
+#define _FP_W_TYPE		unsigned long
+#define _FP_WS_TYPE		signed long
+#define _FP_I_TYPE		long
+
+#define _FP_MUL_MEAT_S(R,X,Y)				\
+  _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm)
+#define _FP_MUL_MEAT_D(R,X,Y)				\
+  _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm)
+#define _FP_MUL_MEAT_Q(R,X,Y)				\
+  _FP_MUL_MEAT_4_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)
+
+#define _FP_DIV_MEAT_S(R,X,Y)	_FP_DIV_MEAT_1_udiv(S,R,X,Y)
+#define _FP_DIV_MEAT_D(R,X,Y)	_FP_DIV_MEAT_2_udiv(D,R,X,Y)
+#define _FP_DIV_MEAT_Q(R,X,Y)	_FP_DIV_MEAT_4_udiv(Q,R,X,Y)
+
+#define _FP_NANFRAC_S		((_FP_QNANBIT_S << 1) - 1)
+#define _FP_NANFRAC_D		((_FP_QNANBIT_D << 1) - 1), -1
+#define _FP_NANFRAC_Q		((_FP_QNANBIT_Q << 1) - 1), -1, -1, -1
+#define _FP_NANSIGN_S		0
+#define _FP_NANSIGN_D		0
+#define _FP_NANSIGN_Q		0
+
+#define _FP_KEEPNANFRACP 1
+/* From my experiments it seems X is chosen unless one of the
+   NaNs is sNaN,  in which case the result is NANSIGN/NANFRAC.  */
+#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP)			\
+  do {								\
+    if ((_FP_FRAC_HIGH_RAW_##fs(X) |				\
+	 _FP_FRAC_HIGH_RAW_##fs(Y)) & _FP_QNANBIT_##fs)		\
+      {								\
+	R##_s = _FP_NANSIGN_##fs;				\
+        _FP_FRAC_SET_##wc(R,_FP_NANFRAC_##fs);			\
+      }								\
+    else							\
+      {								\
+	R##_s = X##_s;						\
+        _FP_FRAC_COPY_##wc(R,X);				\
+      }								\
+    R##_c = FP_CLS_NAN;						\
+  } while (0)
+
+#define FP_EX_INVALID           (1 << 4)
+#define FP_EX_DIVZERO           (1 << 3)
+#define FP_EX_OVERFLOW          (1 << 2)
+#define FP_EX_UNDERFLOW         (1 << 1)
+#define FP_EX_INEXACT           (1 << 0)