From 7691379e7ff734bc7bc40d66bb547f60ac0a0923 Mon Sep 17 00:00:00 2001 From: Ken Raeburn Date: Thu, 20 Jan 1994 18:26:17 +0000 Subject: [PATCH] * expr.c (operand): For floating point operand with unusual fp char from FLT_CHARS, preserve the character. Patch from Lisa Repka. --- gas/ChangeLog | 6 ++++++ gas/expr.c | 43 +++++++++++++++++++------------------------ 2 files changed, 25 insertions(+), 24 deletions(-) diff --git a/gas/ChangeLog b/gas/ChangeLog index e265f6c5ebd..8aeecebe7e8 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,3 +1,9 @@ +Thu Jan 20 13:17:58 1994 Ken Raeburn (raeburn@cujo.cygnus.com) + + * expr.c (operand): For floating point operand with unusual fp + char from FLT_CHARS, preserve the character. Patch from Lisa + Repka. + Wed Jan 19 23:15:24 1994 Ian Lance Taylor (ian@tweedledumb.cygnus.com) * config/tc-mips.c (md_pseudo_table): Add all data allocation diff --git a/gas/expr.c b/gas/expr.c index 84048599c3d..637fcd65462 100644 --- a/gas/expr.c +++ b/gas/expr.c @@ -122,7 +122,7 @@ integer_constant (radix, expressionP) int radix; expressionS *expressionP; { - char *digit_2; /*->2nd digit of number. */ + char *start; /* start of number. */ char c; valueT number; /* offset or (absolute) value */ @@ -167,20 +167,19 @@ integer_constant (radix, expressionP) break; case 8: maxdig = radix = 8; - too_many_digits = (valuesize + 2) / 3; + too_many_digits = (valuesize + 2) / 3 + 1; break; case 16: maxdig = radix = 16; - too_many_digits = (valuesize + 3) / 4; + too_many_digits = (valuesize + 3) / 4 + 1; break; case 10: maxdig = radix = 10; too_many_digits = (valuesize + 12) / 4; /* very rough */ } #undef valuesize - c = *input_line_pointer; - input_line_pointer++; - digit_2 = input_line_pointer; + start = input_line_pointer; + c = *input_line_pointer++; for (number = 0; (digit = hex_value[(unsigned char) c]) < maxdig; c = *input_line_pointer++) @@ -189,7 +188,7 @@ integer_constant (radix, expressionP) } /* c contains character after number. */ /* input_line_pointer->char after c. */ - small = input_line_pointer - digit_2 < too_many_digits; + small = (input_line_pointer - start - 1) < too_many_digits; if (!small) { /* @@ -202,8 +201,7 @@ integer_constant (radix, expressionP) leader = generic_bignum; generic_bignum[0] = 0; generic_bignum[1] = 0; - /* we could just use digit_2, but lets be mnemonic. */ - input_line_pointer = --digit_2; /*->1st digit. */ + input_line_pointer = start; /*->1st digit. */ c = *input_line_pointer++; for (; (carry = hex_value[(unsigned char) c]) < maxdig; @@ -230,7 +228,7 @@ integer_constant (radix, expressionP) /* again, c is char after number, */ /* input_line_pointer->after c. */ know (LITTLENUM_NUMBER_OF_BITS == 16); - if (leader < generic_bignum + sizeof (valueT) / 2) + if (leader < generic_bignum + 2) { /* will fit into 32 bits. */ number = ((generic_bignum[1] & LITTLENUM_MASK) << LITTLENUM_NUMBER_OF_BITS) @@ -359,13 +357,12 @@ integer_constant (radix, expressionP) } /* switch on char following the number */ - } else { /* not a small number */ expressionP->X_op = O_big; - expressionP->X_add_number = number; + expressionP->X_add_number = number; /* number of littlenums */ input_line_pointer--; /*->char following number. */ } } @@ -443,6 +440,7 @@ operand (expressionP) { input_line_pointer++; floating_constant (expressionP); + expressionP->X_add_number = -(isupper (c) ? tolower (c) : c); } else { @@ -461,12 +459,12 @@ operand (expressionP) case 'b': #ifdef LOCAL_LABELS_FB - /* FIXME: This seems to be nonsense. At this point we know - for sure that *input_line_pointer is 'b'. So why are we - checking it? What is this code supposed to do? */ - if (!*input_line_pointer - || (!strchr ("+-.0123456789", *input_line_pointer) - && !strchr (EXP_CHARS, *input_line_pointer))) + if (!input_line_pointer[1] + /* Strictly speaking, we should only need to check for + "+-01", since that's all you'd normally have in a + binary constant. But some of our code does permit + digits greater than the base we're expecting. */ + || !strchr ("+-0123456789", input_line_pointer[1])) { input_line_pointer--; integer_constant (10, expressionP); @@ -494,13 +492,10 @@ operand (expressionP) /* if it says '0f' and the line ends or it doesn't look like a floating point #, its a local label ref. dtrt */ /* likewise for the b's. xoxorich. */ - /* FIXME: As in the 'b' case, we know that the - *input_line_pointer is 'f'. What is this code really - trying to do? */ if (c == 'f' - && (!*input_line_pointer || - (!strchr ("+-.0123456789", *input_line_pointer) && - !strchr (EXP_CHARS, *input_line_pointer)))) + && (!input_line_pointer[1] + || (!strchr ("+-.0123456789", input_line_pointer[1]) + && !strchr (EXP_CHARS, input_line_pointer[1])))) { input_line_pointer -= 1; integer_constant (10, expressionP); -- 2.30.2