diff options
Diffstat (limited to 'gdb/doublest.c')
| -rw-r--r-- | gdb/doublest.c | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/gdb/doublest.c b/gdb/doublest.c index 2a118a3..a339887 100644 --- a/gdb/doublest.c +++ b/gdb/doublest.c @@ -60,11 +60,11 @@ get_field (const bfd_byte *data, enum floatformat_byteorders order, { /* We start counting from the other end (i.e, from the high bytes rather than the low bytes). As such, we need to be concerned - with what happens if bit 0 doesn't start on a byte boundary. + with what happens if bit 0 doesn't start on a byte boundary. I.e, we need to properly handle the case where total_len is not evenly divisible by 8. So we compute ``excess'' which represents the number of bits from the end of our starting - byte needed to get to bit 0. */ + byte needed to get to bit 0. */ int excess = FLOATFORMAT_CHAR_BIT - (total_len % FLOATFORMAT_CHAR_BIT); cur_byte = (total_len / FLOATFORMAT_CHAR_BIT) @@ -104,7 +104,7 @@ get_field (const bfd_byte *data, enum floatformat_byteorders order, } } if (len < sizeof(result) * FLOATFORMAT_CHAR_BIT) - /* Mask out bits which are not part of the field */ + /* Mask out bits which are not part of the field. */ result &= ((1UL << len) - 1); return result; } @@ -176,7 +176,7 @@ convert_floatformat_to_doublest (const struct floatformat *fmt, unsigned long mant; unsigned int mant_bits, mant_off; int mant_bits_left; - int special_exponent; /* It's a NaN, denorm or zero */ + int special_exponent; /* It's a NaN, denorm or zero. */ enum floatformat_byteorders order; unsigned char newfrom[FLOATFORMAT_LARGEST_BYTES]; enum float_kind kind; @@ -233,17 +233,17 @@ convert_floatformat_to_doublest (const struct floatformat *fmt, special_exponent = exponent == 0 || exponent == fmt->exp_nan; - /* Don't bias NaNs. Use minimum exponent for denorms. For simplicity, - we don't check for zero as the exponent doesn't matter. Note the cast - to int; exp_bias is unsigned, so it's important to make sure the - operation is done in signed arithmetic. */ + /* Don't bias NaNs. Use minimum exponent for denorms. For + simplicity, we don't check for zero as the exponent doesn't matter. + Note the cast to int; exp_bias is unsigned, so it's important to + make sure the operation is done in signed arithmetic. */ if (!special_exponent) exponent -= fmt->exp_bias; else if (exponent == 0) exponent = 1 - fmt->exp_bias; /* Build the result algebraically. Might go infinite, underflow, etc; - who cares. */ + who cares. */ /* If this format uses a hidden bit, explicitly add it in now. Otherwise, increment the exponent by one to account for the integer bit. */ @@ -447,7 +447,7 @@ convert_doublest_to_floatformat (CONST struct floatformat *fmt, /* From is NaN */ put_field (uto, order, fmt->totalsize, fmt->exp_start, fmt->exp_len, fmt->exp_nan); - /* Be sure it's not infinity, but NaN value is irrel */ + /* Be sure it's not infinity, but NaN value is irrel. */ put_field (uto, order, fmt->totalsize, fmt->man_start, 32, 1); goto finalize_byteorder; @@ -460,7 +460,7 @@ convert_doublest_to_floatformat (CONST struct floatformat *fmt, dfrom = -dfrom; } - if (dfrom + dfrom == dfrom && dfrom != 0.0) /* Result is Infinity */ + if (dfrom + dfrom == dfrom && dfrom != 0.0) /* Result is Infinity. */ { /* Infinity exponent is same as NaN's. */ put_field (uto, order, fmt->totalsize, fmt->exp_start, @@ -793,7 +793,7 @@ floatformat_from_length (struct gdbarch *gdbarch, int len) [gdbarch_byte_order (gdbarch)]; /* On i386 the 'long double' type takes 96 bits, while the real number of used bits is only 80, - both in processor and in memory. + both in processor and in memory. The code below accepts the real bit size. */ else if ((gdbarch_long_double_format (gdbarch) != NULL) && (len * TARGET_CHAR_BIT |