SO-79930597

gistfile1.txt

Original text: (dat.txt)

A competent translation of the previous pseudocode to real assembly is shown
in Listing 8.2. (This is the version that links via gcc rather than ld. Open it and
build it in SASM.) Read through it and see if you can follow the translation from
the pseudocode, knowing what you already know about assembly language.
The code shown will work but is not “finished” in any real sense. It’s a “first cut”
for real code in the successive refinement process. It needs some hard thinking
about how good and how complete a solution it is to the original problem.

Transformed: (out.txt) viewed in emacs

A COMPETENT TR\0NSL\0TION OF THE PREVIOUS PSEUDOCODE TO RE\0L \0SSEMBLY IS SHOWN
IN LISTING 8.2. (THIS IS THE VERSION TH\0T LINKS VI\0 GCC R\0THER TH\0N LD. OPEN IT \0ND
BUILD IT IN SASM.) RE\0D THROUGH IT \0ND SEE IF YOU C\0N FOLLOW THE TR\0NSL\0TION FROM
THE PSEUDOCODE, KNOWING WH\0T YOU \0LRE\0DY KNOW \0BOUT \0SSEMBLY L\0NGU\0GE.
THE CODE SHOWN WILL WORK BUT IS NOT �\0�FINISHED�\0� IN \0NY RE\0L SENSE. IT�\0�S \0 �\0�FIRST CUT�\0�
FOR RE\0L CODE IN THE SUCCESSIVE REFINEMENT PROCESS. IT NEEDS SOME H\0RD THINKING
\0BOUT HOW GOOD \0ND HOW COMPLETE \0 SOLUTION IT IS TO THE ORIGIN\0L PROBLEM.
SSIVE REFINEMENT PROCESS. IT NEEDS SOME H\0RD THINKING
\0BOUT HOW GOOD \0ND HOW 

Transformed: (out.txt) Viewed in cat
A COMPETENT TRANSLATION OF THE PREVIOUS PSEUDOCODE TO REAL ASSEMBLY IS SHOWN
IN LISTING 8.2. (THIS IS THE VERSION THAT LINKS VIA GCC RATHER THAN LD. OPEN IT AND
BUILD IT IN SASM.) READ THROUGH IT AND SEE IF YOU CAN FOLLOW THE TRANSLATION FROM
THE PSEUDOCODE, KNOWING WHAT YOU ALREADY KNOW ABOUT ASSEMBLY LANGUAGE.
THE CODE SHOWN WILL WORK BUT IS NOT “FINISHED” IN ANY REAL SENSE. IT’S A “FIRST CUT”
FOR REAL CODE IN THE SUCCESSIVE REFINEMENT PROCESS. IT NEEDS SOME HARD THINKING
ABOUT HOW GOOD AND HOW COMPLETE A SOLUTION IT IS TO THE ORIGINAL PROBLEM.
SSIVE REFINEMENT PROCESS. IT NEEDS SOME HRD THINKING
BOUT HOW GOOD ND HOW

GDB: 
x/256cb &upperlut (OLD)
	32 ' '	33 '!'	34 '"'	35 '#'	36 '$'	37 '%'	38 '&'	39 '\''
0x4040e8:	40 '('	41 ')'	42 '*'	43 '+'	44 ','	45 '-'	46 '.'	47 '/'
0x4040f0:	48 '0'	49 '1'	50 '2'	51 '3'	52 '4'	53 '5'	54 '6'	55 '7'
0x4040f8:	56 '8'	57 '9'	58 ':'	59 ';'	60 '<'	61 '='	62 '>'	63 '?'
0x404100:	64 '@'	65 'A'	66 'B'	67 'C'	68 'D'	69 'E'	70 'F'	71 'G'
0x404108:	72 'H'	73 'I'	74 'J'	75 'K'	76 'L'	77 'M'	78 'N'	79 'O'
0x404110:	80 'P'	81 'Q'	82 'R'	83 'S'	84 'T'	85 'U'	86 'V'	87 'W'
0x404118:	88 'X'	89 'Y'	90 'Z'	0 '\000'	0 '\000'	0 '\000'	0 '\000'	0 '\000'
0x404120:	0 '\000'	0 '\000'	66 'B'	67 'C'	68 'D'	69 'E'	70 'F'	71 'G'
0x404128:	72 'H'	73 'I'	74 'J'	75 'K'	76 'L'	77 'M'	78 'N'	79 'O'
0x404130:	80 'P'	81 'Q'	82 'R'	83 'S'	84 'T'	85 'U'	86 'V'	87 'W'
0x404138:	88 'X'	89 'Y'	90 'Z'	0 '\000'

GDB:
 x/256cb &upperlut (NEW)
0x4040e0:	32 ' '	33 '!'	34 '"'	35 '#'	36 '$'	37 '%'	38 '&'	39 '\''
0x4040e8:	40 '('	41 ')'	42 '*'	43 '+'	44 ','	45 '-'	46 '.'	47 '/'
0x4040f0:	48 '0'	49 '1'	50 '2'	51 '3'	52 '4'	53 '5'	54 '6'	55 '7'
0x4040f8:	56 '8'	57 '9'	58 ':'	59 ';'	60 '<'	61 '='	62 '>'	63 '?'
0x404100:	64 '@'	65 'A'	66 'B'	67 'C'	68 'D'	69 'E'	70 'F'	71 'G'
0x404108:	72 'H'	73 'I'	74 'J'	75 'K'	76 'L'	77 'M'	78 'N'	79 'O'
0x404110:	80 'P'	81 'Q'	82 'R'	83 'S'	84 'T'	85 'U'	86 'V'	87 'W'
0x404118:	88 'X'	89 'Y'	90 'Z'	91 '['	92 '\\'	93 ']'	94 '^'	95 '_'
0x404120:	96 '`'	65 'A'	98 'b'	99 'c'	100 'd'	101 'e'	102 'f'	103 'g'
0x404128:	104 'h'	105 'i'	106 'j'	107 'k'	108 'l'	109 'm'	110 'n'	111 'o'
0x404130:	112 'p'	113 'q'	114 'r'	115 's'	116 't'	117 'u'	118 'v'	119 'w'
0x404138:	120 'x'	121 'y'	122 'z'	123 '{'	124 '|'	125 '}'	126 '~'	127 '\177'
0x404140:	-128 '\200'	-127 '\201'
(gdb)