diff options
| -rw-r--r-- | ChangeLog | 8 | ||||
| -rw-r--r-- | soft-fp/extended.h | 32 | ||||
| -rw-r--r-- | soft-fp/op-1.h | 46 | ||||
| -rw-r--r-- | soft-fp/op-2.h | 44 | ||||
| -rw-r--r-- | soft-fp/op-4.h | 64 | ||||
| -rw-r--r-- | soft-fp/op-8.h | 13 | ||||
| -rw-r--r-- | soft-fp/op-common.h | 86 | ||||
| -rw-r--r-- | soft-fp/soft-fp.h | 11 |
8 files changed, 121 insertions, 183 deletions
@@ -1,5 +1,13 @@ 2014-09-17 Joseph Myers <joseph@codesourcery.com> + * soft-fp/extended.h: Fix comment formatting. + * soft-fp/op-1.h: Likewise. + * soft-fp/op-2.h: Likewise. + * soft-fp/op-4.h: Likewise. + * soft-fp/op-8.h: Likewise. + * soft-fp/op-common.h: Likewise. + * soft-fp/soft-fp.h: Likewise. + * soft-fp/op-common.h (_FP_TO_INT): Correct formatting. 2014-09-16 Joseph Myers <joseph@codesourcery.com> diff --git a/soft-fp/extended.h b/soft-fp/extended.h index 940bdf1..989b056 100644 --- a/soft-fp/extended.h +++ b/soft-fp/extended.h @@ -232,16 +232,14 @@ union _FP_UNION_E # define FP_SQRT_E(R, X) _FP_SQRT (E, 4, R, X) # define FP_FMA_E(R, X, Y, Z) _FP_FMA (E, 4, 8, R, X, Y, Z) -/* - * Square root algorithms: - * We have just one right now, maybe Newton approximation - * should be added for those machines where division is fast. - * This has special _E version because standard _4 square - * root would not work (it has to start normally with the - * second word and not the first), but as we have to do it - * anyway, we optimize it by doing most of the calculations - * in two UWtype registers instead of four. - */ +/* Square root algorithms: + We have just one right now, maybe Newton approximation + should be added for those machines where division is fast. + This has special _E version because standard _4 square + root would not work (it has to start normally with the + second word and not the first), but as we have to do it + anyway, we optimize it by doing most of the calculations + in two UWtype registers instead of four. */ # define _FP_SQRT_MEAT_E(R, S, T, X, q) \ do \ @@ -458,14 +456,12 @@ union _FP_UNION_E # define FP_SQRT_E(R, X) _FP_SQRT (E, 2, R, X) # define FP_FMA_E(R, X, Y, Z) _FP_FMA (E, 2, 4, R, X, Y, Z) -/* - * Square root algorithms: - * We have just one right now, maybe Newton approximation - * should be added for those machines where division is fast. - * We optimize it by doing most of the calculations - * in one UWtype registers instead of two, although we don't - * have to. - */ +/* Square root algorithms: + We have just one right now, maybe Newton approximation + should be added for those machines where division is fast. + We optimize it by doing most of the calculations + in one UWtype registers instead of two, although we don't + have to. */ # define _FP_SQRT_MEAT_E(R, S, T, X, q) \ do \ { \ diff --git a/soft-fp/op-1.h b/soft-fp/op-1.h index 3547e74..fa68269 100644 --- a/soft-fp/op-1.h +++ b/soft-fp/op-1.h @@ -73,7 +73,7 @@ #define _FP_FRAC_DEC_1(X, Y) (X##_f -= Y##_f) #define _FP_FRAC_CLZ_1(z, X) __FP_CLZ (z, X##_f) -/* Predicates */ +/* Predicates. */ #define _FP_FRAC_NEGP_1(X) ((_FP_WS_TYPE) X##_f < 0) #define _FP_FRAC_ZEROP_1(X) (X##_f == 0) #define _FP_FRAC_OVERP_1(fs, X) (X##_f & _FP_OVERFLOW_##fs) @@ -87,10 +87,8 @@ #define _FP_MINFRAC_1 1 #define _FP_MAXFRAC_1 (~(_FP_WS_TYPE) 0) -/* - * Unpack the raw bits of a native fp value. Do not classify or - * normalize the data. - */ +/* Unpack the raw bits of a native fp value. Do not classify or + normalize the data. */ #define _FP_UNPACK_RAW_1(fs, X, val) \ do \ @@ -116,9 +114,7 @@ } \ while (0) -/* - * Repack the raw bits of a native fp value. - */ +/* Repack the raw bits of a native fp value. */ #define _FP_PACK_RAW_1(fs, val, X) \ do \ @@ -146,9 +142,7 @@ while (0) -/* - * Multiplication algorithms: - */ +/* Multiplication algorithms: */ /* Basic. Assuming the host word size is >= 2*FRACBITS, we can do the multiplication immediately. */ @@ -203,7 +197,7 @@ _FP_W_TYPE _FP_MUL_MEAT_DW_1_hard_yh, _FP_MUL_MEAT_DW_1_hard_yl; \ _FP_FRAC_DECL_2 (_FP_MUL_MEAT_DW_1_hard_a); \ \ - /* split the words in half */ \ + /* Split the words in half. */ \ _FP_MUL_MEAT_DW_1_hard_xh = X##_f >> (_FP_W_TYPE_SIZE/2); \ _FP_MUL_MEAT_DW_1_hard_xl \ = X##_f & (((_FP_W_TYPE) 1 << (_FP_W_TYPE_SIZE/2)) - 1); \ @@ -211,7 +205,7 @@ _FP_MUL_MEAT_DW_1_hard_yl \ = Y##_f & (((_FP_W_TYPE) 1 << (_FP_W_TYPE_SIZE/2)) - 1); \ \ - /* multiply the pieces */ \ + /* Multiply the pieces. */ \ R##_f0 = _FP_MUL_MEAT_DW_1_hard_xl * _FP_MUL_MEAT_DW_1_hard_yl; \ _FP_MUL_MEAT_DW_1_hard_a_f0 \ = _FP_MUL_MEAT_DW_1_hard_xh * _FP_MUL_MEAT_DW_1_hard_yl; \ @@ -219,7 +213,7 @@ = _FP_MUL_MEAT_DW_1_hard_xl * _FP_MUL_MEAT_DW_1_hard_yh; \ R##_f1 = _FP_MUL_MEAT_DW_1_hard_xh * _FP_MUL_MEAT_DW_1_hard_yh; \ \ - /* reassemble into two full words */ \ + /* Reassemble into two full words. */ \ if ((_FP_MUL_MEAT_DW_1_hard_a_f0 += _FP_MUL_MEAT_DW_1_hard_a_f1) \ < _FP_MUL_MEAT_DW_1_hard_a_f1) \ R##_f1 += (_FP_W_TYPE) 1 << (_FP_W_TYPE_SIZE/2); \ @@ -237,7 +231,7 @@ _FP_FRAC_DECL_2 (_FP_MUL_MEAT_1_hard_z); \ _FP_MUL_MEAT_DW_1_hard (wfracbits, _FP_MUL_MEAT_1_hard_z, X, Y); \ \ - /* normalize */ \ + /* Normalize. */ \ _FP_FRAC_SRS_2 (_FP_MUL_MEAT_1_hard_z, \ wfracbits - 1, 2*wfracbits); \ R##_f = _FP_MUL_MEAT_1_hard_z_f0; \ @@ -245,9 +239,7 @@ while (0) -/* - * Division algorithms: - */ +/* Division algorithms: */ /* Basic. Assuming the host word size is >= 2*FRACBITS, we can do the division immediately. Give this macro either _FP_DIV_HELP_imm for @@ -330,11 +322,9 @@ while (0) -/* - * Square root algorithms: - * We have just one right now, maybe Newton approximation - * should be added for those machines where division is fast. - */ +/* Square root algorithms: + We have just one right now, maybe Newton approximation + should be added for those machines where division is fast. */ #define _FP_SQRT_MEAT_1(R, S, T, X, q) \ do \ @@ -360,17 +350,13 @@ } \ while (0) -/* - * Assembly/disassembly for converting to/from integral types. - * No shifting or overflow handled here. - */ +/* Assembly/disassembly for converting to/from integral types. + No shifting or overflow handled here. */ #define _FP_FRAC_ASSEMBLE_1(r, X, rsize) (r = X##_f) #define _FP_FRAC_DISASSEMBLE_1(X, r, rsize) (X##_f = r) -/* - * Convert FP values between word sizes - */ +/* Convert FP values between word sizes. */ #define _FP_FRAC_COPY_1_1(D, S) (D##_f = S##_f) diff --git a/soft-fp/op-2.h b/soft-fp/op-2.h index 4ea2a00..6a6f938 100644 --- a/soft-fp/op-2.h +++ b/soft-fp/op-2.h @@ -131,7 +131,7 @@ } \ while (0) -/* Predicates */ +/* Predicates. */ #define _FP_FRAC_NEGP_2(X) ((_FP_WS_TYPE) X##_f1 < 0) #define _FP_FRAC_ZEROP_2(X) ((X##_f1 | X##_f0) == 0) #define _FP_FRAC_OVERP_2(fs, X) (_FP_FRAC_HIGH_##fs (X) & _FP_OVERFLOW_##fs) @@ -148,9 +148,7 @@ #define _FP_MINFRAC_2 0, 1 #define _FP_MAXFRAC_2 (~(_FP_WS_TYPE) 0), (~(_FP_WS_TYPE) 0) -/* - * Internals - */ +/* Internals. */ #define __FP_FRAC_SET_2(X, I1, I0) (X##_f0 = I0, X##_f1 = I1) @@ -205,10 +203,8 @@ #endif -/* - * Unpack the raw bits of a native fp value. Do not classify or - * normalize the data. - */ +/* Unpack the raw bits of a native fp value. Do not classify or + normalize the data. */ #define _FP_UNPACK_RAW_2(fs, X, val) \ do \ @@ -237,9 +233,7 @@ while (0) -/* - * Repack the raw bits of a native fp value. - */ +/* Repack the raw bits of a native fp value. */ #define _FP_PACK_RAW_2(fs, val, X) \ do \ @@ -269,9 +263,7 @@ while (0) -/* - * Multiplication algorithms: - */ +/* Multiplication algorithms: */ /* Given a 1W * 1W => 2W primitive, do the extended multiplication. */ @@ -532,9 +524,7 @@ } \ while (0) -/* - * Division algorithms: - */ +/* Division algorithms: */ #define _FP_DIV_MEAT_2_udiv(fs, R, X, Y) \ do \ @@ -563,7 +553,7 @@ } \ \ /* Normalize, i.e. make the most significant bit of the \ - denominator set. */ \ + denominator set. */ \ _FP_FRAC_SLL_2 (Y, _FP_WFRACXBITS_##fs); \ \ udiv_qrnnd (R##_f1, _FP_DIV_MEAT_2_udiv_r_f1, \ @@ -630,11 +620,9 @@ while (0) -/* - * Square root algorithms: - * We have just one right now, maybe Newton approximation - * should be added for those machines where division is fast. - */ +/* Square root algorithms: + We have just one right now, maybe Newton approximation + should be added for those machines where division is fast. */ #define _FP_SQRT_MEAT_2(R, S, T, X, q) \ do \ @@ -678,10 +666,8 @@ while (0) -/* - * Assembly/disassembly for converting to/from integral types. - * No shifting or overflow handled here. - */ +/* Assembly/disassembly for converting to/from integral types. + No shifting or overflow handled here. */ #define _FP_FRAC_ASSEMBLE_2(r, X, rsize) \ (void) ((rsize <= _FP_W_TYPE_SIZE) \ @@ -700,9 +686,7 @@ } \ while (0) -/* - * Convert FP values between word sizes - */ +/* Convert FP values between word sizes. */ #define _FP_FRAC_COPY_1_2(D, S) (D##_f = S##_f0) diff --git a/soft-fp/op-4.h b/soft-fp/op-4.h index 3acf96c..12731e2 100644 --- a/soft-fp/op-4.h +++ b/soft-fp/op-4.h @@ -70,7 +70,7 @@ } \ while (0) -/* This one was broken too */ +/* This one was broken too. */ #define _FP_FRAC_SRL_4(X, N) \ do \ { \ @@ -104,10 +104,9 @@ /* Right shift with sticky-lsb. - * What this actually means is that we do a standard right-shift, - * but that if any of the bits that fall off the right hand side - * were one then we always set the LSbit. - */ + What this actually means is that we do a standard right-shift, + but that if any of the bits that fall off the right hand side + were one then we always set the LSbit. */ #define _FP_FRAC_SRST_4(X, S, N, size) \ do \ { \ @@ -290,9 +289,7 @@ } \ while (0) -/* - * Multiplication algorithms: - */ +/* Multiplication algorithms: */ /* Given a 1W * 1W => 2W primitive, do the extended multiplication. */ @@ -467,10 +464,8 @@ } \ while (0) -/* - * Helper utility for _FP_DIV_MEAT_4_udiv: - * pppp = m * nnn - */ +/* Helper utility for _FP_DIV_MEAT_4_udiv: + * pppp = m * nnn. */ #define umul_ppppmnnn(p3, p2, p1, p0, m, n2, n1, n0) \ do \ { \ @@ -483,9 +478,7 @@ } \ while (0) -/* - * Division algorithms: - */ +/* Division algorithms: */ #define _FP_DIV_MEAT_4_udiv(fs, R, X, Y) \ do \ @@ -504,7 +497,7 @@ R##_e--; \ \ /* Normalize, i.e. make the most significant bit of the \ - denominator set. */ \ + denominator set. */ \ _FP_FRAC_SLL_4 (Y, _FP_WFRACXBITS_##fs); \ \ for (_FP_DIV_MEAT_4_udiv_i = 3; ; _FP_DIV_MEAT_4_udiv_i--) \ @@ -568,11 +561,9 @@ while (0) -/* - * Square root algorithms: - * We have just one right now, maybe Newton approximation - * should be added for those machines where division is fast. - */ +/* Square root algorithms: + We have just one right now, maybe Newton approximation + should be added for those machines where division is fast. */ #define _FP_SQRT_MEAT_4(R, S, T, X, q) \ do \ @@ -657,9 +648,7 @@ while (0) -/* - * Internals - */ +/* Internals. */ #define __FP_FRAC_SET_4(X, I3, I2, I1, I0) \ (X##_f[3] = I3, X##_f[2] = I2, X##_f[1] = I1, X##_f[0] = I0) @@ -787,12 +776,11 @@ #endif /* Convert FP values between word sizes. This appears to be more - * complicated than I'd have expected it to be, so these might be - * wrong... These macros are in any case somewhat bogus because they - * use information about what various FRAC_n variables look like - * internally [eg, that 2 word vars are X_f0 and x_f1]. But so do - * the ones in op-2.h and op-1.h. - */ + complicated than I'd have expected it to be, so these might be + wrong... These macros are in any case somewhat bogus because they + use information about what various FRAC_n variables look like + internally [eg, that 2 word vars are X_f0 and x_f1]. But so do + the ones in op-2.h and op-1.h. */ #define _FP_FRAC_COPY_1_4(D, S) (D##_f = S##_f[0]) #define _FP_FRAC_COPY_2_4(D, S) \ @@ -804,9 +792,8 @@ while (0) /* Assembly/disassembly for converting to/from integral types. - * No shifting or overflow handled here. - */ -/* Put the FP value X into r, which is an integer of size rsize. */ + No shifting or overflow handled here. */ +/* Put the FP value X into r, which is an integer of size rsize. */ #define _FP_FRAC_ASSEMBLE_4(r, X, rsize) \ do \ { \ @@ -820,8 +807,8 @@ } \ else \ { \ - /* I'm feeling lazy so we deal with int == 3words (implausible)*/ \ - /* and int == 4words as a single case. */ \ + /* I'm feeling lazy so we deal with int == 3words \ + (implausible) and int == 4words as a single case. */ \ r = X##_f[3]; \ r = (rsize <= _FP_W_TYPE_SIZE ? 0 : r << _FP_W_TYPE_SIZE); \ r += X##_f[2]; \ @@ -834,10 +821,9 @@ while (0) /* "No disassemble Number Five!" */ -/* move an integer of size rsize into X's fractional part. We rely on - * the _f[] array consisting of words of size _FP_W_TYPE_SIZE to avoid - * having to mask the values we store into it. - */ +/* Move an integer of size rsize into X's fractional part. We rely on + the _f[] array consisting of words of size _FP_W_TYPE_SIZE to avoid + having to mask the values we store into it. */ #define _FP_FRAC_DISASSEMBLE_4(X, r, rsize) \ do \ { \ diff --git a/soft-fp/op-8.h b/soft-fp/op-8.h index c966ee2..a47799f 100644 --- a/soft-fp/op-8.h +++ b/soft-fp/op-8.h @@ -30,7 +30,7 @@ <http://www.gnu.org/licenses/>. */ /* We need just a few things from here for op-4, if we ever need some - other macros, they can be added. */ + other macros, they can be added. */ #define _FP_FRAC_DECL_8(X) _FP_W_TYPE X##_f[8] #define _FP_FRAC_HIGH_8(X) (X##_f[7]) #define _FP_FRAC_LOW_8(X) (X##_f[0]) @@ -100,10 +100,9 @@ /* Right shift with sticky-lsb. - * What this actually means is that we do a standard right-shift, - * but that if any of the bits that fall off the right hand side - * were one then we always set the LSbit. - */ + What this actually means is that we do a standard right-shift, + but that if any of the bits that fall off the right hand side + were one then we always set the LSbit. */ #define _FP_FRAC_SRS_8(X, N, size) \ do \ { \ @@ -139,8 +138,8 @@ } \ for (; _FP_FRAC_SRS_8_i < 8; ++_FP_FRAC_SRS_8_i) \ X##_f[_FP_FRAC_SRS_8_i] = 0; \ - /* don't fix the LSB until the very end when we're sure f[0] is \ - stable */ \ + /* Don't fix the LSB until the very end when we're sure f[0] is \ + stable. */ \ X##_f[0] |= (_FP_FRAC_SRS_8_s != 0); \ } \ while (0) diff --git a/soft-fp/op-common.h b/soft-fp/op-common.h index 5852a86..ec0bc42 100644 --- a/soft-fp/op-common.h +++ b/soft-fp/op-common.h @@ -45,10 +45,8 @@ ? (_FP_FRAC_HIGH_##fs (X) & _FP_QNANBIT_SH_##fs) \ : !(_FP_FRAC_HIGH_##fs (X) & _FP_QNANBIT_SH_##fs)) -/* - * Finish truly unpacking a native fp value by classifying the kind - * of fp value and normalizing both the exponent and the fraction. - */ +/* Finish truly unpacking a native fp value by classifying the kind + of fp value and normalizing both the exponent and the fraction. */ #define _FP_UNPACK_CANONICAL(fs, wc, X) \ do \ @@ -67,7 +65,7 @@ X##_c = FP_CLS_ZERO; \ else \ { \ - /* a denormalized number */ \ + /* A denormalized number. */ \ _FP_I_TYPE _FP_UNPACK_CANONICAL_shift; \ _FP_FRAC_CLZ_##wc (_FP_UNPACK_CANONICAL_shift, \ X); \ @@ -87,7 +85,7 @@ else \ { \ X##_c = FP_CLS_NAN; \ - /* Check for signaling NaN */ \ + /* Check for signaling NaN. */ \ if (_FP_FRAC_SNANP (fs, X)) \ FP_SET_EXCEPTION (FP_EX_INVALID); \ } \ @@ -237,12 +235,10 @@ } \ while (0) -/* - * Before packing the bits back into the native fp result, take care - * of such mundane things as rounding and overflow. Also, for some - * kinds of fp values, the original parts may not have been fully - * extracted -- but that is ok, we can regenerate them now. - */ +/* Before packing the bits back into the native fp result, take care + of such mundane things as rounding and overflow. Also, for some + kinds of fp values, the original parts may not have been fully + extracted -- but that is ok, we can regenerate them now. */ #define _FP_PACK_CANONICAL(fs, wc, X) \ do \ @@ -262,7 +258,7 @@ _FP_FRAC_SRL_##wc (X, _FP_WORKBITS); \ if (X##_e >= _FP_EXPMAX_##fs) \ { \ - /* overflow */ \ + /* Overflow. */ \ switch (FP_ROUNDMODE) \ { \ case FP_RND_NEAREST: \ @@ -279,13 +275,13 @@ } \ if (X##_c == FP_CLS_INF) \ { \ - /* Overflow to infinity */ \ + /* Overflow to infinity. */ \ X##_e = _FP_EXPMAX_##fs; \ _FP_FRAC_SET_##wc (X, _FP_ZEROFRAC_##wc); \ } \ else \ { \ - /* Overflow to maximum normal */ \ + /* Overflow to maximum normal. */ \ X##_e = _FP_EXPMAX_##fs - 1; \ _FP_FRAC_SET_##wc (X, _FP_MAXFRAC_##wc); \ } \ @@ -295,7 +291,7 @@ } \ else \ { \ - /* we've got a denormalized number */ \ + /* We've got a denormalized number. */ \ int _FP_PACK_CANONICAL_is_tiny = 1; \ if (_FP_TININESS_AFTER_ROUNDING && X##_e == 0) \ { \ @@ -332,7 +328,7 @@ } \ else \ { \ - /* underflow to zero */ \ + /* Underflow to zero. */ \ X##_e = 0; \ if (!_FP_FRAC_ZEROP_##wc (X)) \ { \ @@ -370,8 +366,7 @@ while (0) /* This one accepts raw argument and not cooked, returns - * 1 if X is a signaling NaN. - */ + 1 if X is a signaling NaN. */ #define _FP_ISSIGNAN(fs, wc, X) \ ({ \ int _FP_ISSIGNAN_ret = 0; \ @@ -833,9 +828,7 @@ while (0) -/* - * Main negation routine. The input value is raw. - */ +/* Main negation routine. The input value is raw. */ #define _FP_NEG(fs, wc, R, X) \ do \ @@ -847,9 +840,7 @@ while (0) -/* - * Main multiplication routine. The input values should be cooked. - */ +/* Main multiplication routine. The input values should be cooked. */ #define _FP_MUL(fs, wc, R, X, Y) \ do \ @@ -1132,9 +1123,7 @@ while (0) -/* - * Main division routine. The input values should be cooked. - */ +/* Main division routine. The input values should be cooked. */ #define _FP_DIV(fs, wc, R, X, Y) \ do \ @@ -1197,15 +1186,13 @@ while (0) -/* - * Main differential comparison routine. The inputs should be raw not - * cooked. The return is -1,0,1 for normal values, 2 otherwise. - */ +/* Main differential comparison routine. The inputs should be raw not + cooked. The return is -1,0,1 for normal values, 2 otherwise. */ #define _FP_CMP(fs, wc, ret, X, Y, un) \ do \ { \ - /* NANs are unordered */ \ + /* NANs are unordered. */ \ if ((X##_e == _FP_EXPMAX_##fs && !_FP_FRAC_ZEROP_##wc (X)) \ || (Y##_e == _FP_EXPMAX_##fs && !_FP_FRAC_ZEROP_##wc (Y))) \ { \ @@ -1249,7 +1236,7 @@ #define _FP_CMP_EQ(fs, wc, ret, X, Y) \ do \ { \ - /* NANs are unordered */ \ + /* NANs are unordered. */ \ if ((X##_e == _FP_EXPMAX_##fs && !_FP_FRAC_ZEROP_##wc (X)) \ || (Y##_e == _FP_EXPMAX_##fs && !_FP_FRAC_ZEROP_##wc (Y))) \ { \ @@ -1274,9 +1261,7 @@ } \ while (0) -/* - * Main square root routine. The input value should be cooked. - */ +/* Main square root routine. The input value should be cooked. */ #define _FP_SQRT(fs, wc, R, X) \ do \ @@ -1332,21 +1317,18 @@ } \ while (0) -/* - * Convert from FP to integer. Input is raw. - */ +/* Convert from FP to integer. Input is raw. */ /* RSIGNED can have following values: - * 0: the number is required to be 0..(2^rsize)-1, if not, NV is set plus - * the result is either 0 or (2^rsize)-1 depending on the sign in such - * case. - * 1: the number is required to be -(2^(rsize-1))..(2^(rsize-1))-1, if not, - * NV is set plus the result is either -(2^(rsize-1)) or (2^(rsize-1))-1 - * depending on the sign in such case. - * -1: the number is required to be -(2^(rsize-1))..(2^rsize)-1, if not, NV is - * set plus the result is either -(2^(rsize-1)) or (2^(rsize-1))-1 - * depending on the sign in such case. - */ + 0: the number is required to be 0..(2^rsize)-1, if not, NV is set plus + the result is either 0 or (2^rsize)-1 depending on the sign in such + case. + 1: the number is required to be -(2^(rsize-1))..(2^(rsize-1))-1, if not, + NV is set plus the result is either -(2^(rsize-1)) or (2^(rsize-1))-1 + depending on the sign in such case. + -1: the number is required to be -(2^(rsize-1))..(2^rsize)-1, if not, NV is + set plus the result is either -(2^(rsize-1)) or (2^(rsize-1))-1 + depending on the sign in such case. */ #define _FP_TO_INT(fs, wc, r, X, rsize, rsigned) \ do \ { \ @@ -1656,9 +1638,7 @@ } \ while (0) -/* - * Helper primitives. - */ +/* Helper primitives. */ /* Count leading zeros in a word. */ diff --git a/soft-fp/soft-fp.h b/soft-fp/soft-fp.h index 8d0efa5..5fb7358 100644 --- a/soft-fp/soft-fp.h +++ b/soft-fp/soft-fp.h @@ -38,7 +38,7 @@ # include "sfp-machine.h" #endif -/* Allow sfp-machine to have its own byte order definitions. */ +/* Allow sfp-machine to have its own byte order definitions. */ #ifndef __BYTE_ORDER # ifdef _LIBC # include <endian.h> @@ -63,7 +63,7 @@ # define FP_ROUNDMODE FP_RND_NEAREST #endif -/* By default don't care about exceptions. */ +/* By default don't care about exceptions. */ #ifndef FP_EX_INVALID # define FP_EX_INVALID 0 #endif @@ -119,10 +119,9 @@ #ifndef FP_INHIBIT_RESULTS /* By default we write the results always. - * sfp-machine may override this and e.g. - * check if some exceptions are unmasked - * and inhibit it in such a case. - */ + sfp-machine may override this and e.g. + check if some exceptions are unmasked + and inhibit it in such a case. */ # define FP_INHIBIT_RESULTS 0 #endif |