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bigprint.c
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C/C++ Source or Header
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1989-02-04
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32KB
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1,188 lines
/*
* **************************************************
* * *
* * BIGPRINT.C *
* * *
* * Extended Precision Calculator *
* * *
* * Printing Routines *
* * *
* * Version 4.3 02-04-89 *
* * *
* * Judson D. McClendon *
* * 329 37th Court N.E. *
* * Birmingham, AL 35215 *
* * 205-853-8440 *
* * Compuserve [74415,1003] *
* * *
* **************************************************
*/
/*
* **************************************************
* * *
* * Includes *
* * *
* **************************************************
*/
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "bigcalc.h"
#include "biggvar.h"
/*
* **************************************************
* * *
* * Source Local Variables *
* * *
* **************************************************
*/
static int
ppos = 0, /* Current print column */
prevchr; /* Previous character printed */
/*
* **************************************************
* * *
* * Printing routines *
* * *
* **************************************************
*/
/*
* **************************************************
* * *
* * Print Heading *
* * *
* **************************************************
*/
extern void PrintHeading(void)
{
Message("Printing...");
PString("\r\n*** BIGCALC (precision ");
PInteger((long) normprec);
PString(" digits, ");
PChar(PRINTDECIMAL);
PString(" is decimal point) ***\r\n\n");
}
/*
* **************************************************
* * *
* * Print Registers [lo to hi] on Printer *
* * *
* **************************************************
*/
extern void PrintReg(int lo, int hi)
{
int r;
for (r = lo; r <= hi; r++) {
PChar(r + '0');
PrintNumber(®[r]);
NewLine();
}
NewLine();
}
/*
* **************************************************
* * *
* * Print Stack [lo to hi] on Printer *
* * *
* **************************************************
*/
extern void PrintStack(int lo, int hi)
{
int s;
for (s = hi; s >= lo; s--) {
PChar(stackname[s]);
PrintNumber(&stack[s]);
NewLine();
}
NewLine();
}
/*
* **************************************************
* * *
* * Display Memory Register in Full on Screen *
* * *
* **************************************************
*/
extern void DisplayReg(int r)
{
printtoscreen = TRUE; /* Temporarily print to screen */
CurPos(1, 1);
EraEop();
menucleared = TRUE;
PChar(r + '0');
PrintNumber(®[r]);
MessageWait("");
WorkScreen();
printtoscreen = FALSE; /* Reset print to screen */
}
/*
* **************************************************
* * *
* * Display Stack Register in Full on Screen *
* * *
* **************************************************
*/
extern void DisplayStack(int s)
{
printtoscreen = TRUE; /* Temporarily print to screen */
CurPos(1, 1);
EraEop();
menucleared = TRUE;
PChar(stackname[s]);
PrintNumber(&stack[s]);
MessageWait("");
WorkScreen();
printtoscreen = FALSE; /* Reset print to screen */
}
/*
* **************************************************
* * *
* * Print Number [*number] on Printer *
* * *
* **************************************************
*/
extern void PrintNumber(NORMTYPE *nbr)
{
long exponent;
int i, digits, chrcount;
prevchr = '0';
PString(": ");
ppos = SIGNPRTCOL;
chrcount = 0;
digits = nbr->digits;
exponent = nbr->exp;
if (nbr->digits == 0) {
PString(" 0\r\n\n");
return;
}
if ( (scinotation)
||
(exponent < minfloatprn)
||
(exponent > maxfloatprn) )
{ /* Scientific Notation */
for (i = 1; i < groupsize; i++)
PCharWrap(' ');
PSign(nbr->sign); /* Print sign */
PCharWrap(nbr->man[0]+ '0'); /* First digit and decimal point */
PCharWrap(PRINTDECIMAL);
if (digits <= 1) /* If no more digits, */
PCharWrap('0'); /* print one zero */
else {
for (i = 1; i < digits; i++) { /* print remaining digits */
PCharWrap(nbr->man[i]+ '0');
if (! (i % groupsize))
PCharWrap(' ');
}
}
PExponent(nbr->exp - 1L); /* Print exponent */
} /* Scientific Notation end */
else
{ /* Floating Decimal */
if (exponent <= 0L)
{ /* Number < 1 */
for (i = 1; i < groupsize; i++)
PCharWrap(' ');
PSign(nbr->sign); /* Print sign */
PCharWrap('0'); /* Zero left of decimal looks good */
PCharWrap(PRINTDECIMAL); /* Decimal point */
for (i = 0; i > (int)exponent; i--) { /* Zeros to left of number */
PCharWrap('0');
if (! (++chrcount % groupsize))
PCharWrap(' ');
}
for (i = 0; i < digits; i++) { /* Print mantissa digits */
PCharWrap(nbr->man[i] + '0');
if (! (++chrcount % groupsize))
PCharWrap(' ');
}
} /* Number < 1 */
else
{ /* Number >= 1 */
/* Calculate digit allignment */
i = (int)((3000000L - exponent) % (long)groupsize);
while (i-- > 0) /* here 1 <= exponent <= maxfloatprn */
PCharWrap(' ');
PSign(nbr->sign); /* Print sign */
chrcount = (int)exponent; /* Distance from decimal point to */
/* print groups of groupsize digits */
for (i = 0; i < (int)exponent; i++) { /* Digits to left of decimal */
if (i < digits)
PCharWrap(nbr->man[i] + '0'); /* Mantissa digits while they last */
else
PCharWrap('0'); /* Zeros if mantissa exhausted */
if (! (--chrcount % groupsize)) /* Space between groups */
if (chrcount) /* of groupsize digits */
PCharWrap(' ');
}
chrcount = 0; /* Distance from decimal */
if (i < digits) { /* If digits to right of decimal */
PCharWrap(PRINTDECIMAL); /* print decimal point */
for (i = (int)exponent; i < digits; i++) { /* digits to right of decimal */
PCharWrap(nbr->man[i] + '0');
if (! (++chrcount % groupsize))
PCharWrap(' ');
}
}
} /* Number >= 1 */
} /* Floating Decimal */
NewLine();
}
/*
* **************************************************
* * *
* * Print Char & Wrap Print Line *
* * *
* **************************************************
*/
static void PCharWrap(int chr)
{
int col;
if ( (ppos > MAXPRTCOL)
&&
(chr != ' ')
&&
( (prevchr == ' ')
||
(prevchr == PRINTDECIMAL) ) ) {
PString("\r\n");
for (col = 1; col < MINPRTCOL; col++)
PChar(' ');
ppos = MINPRTCOL;
}
PChar(chr);
ppos++;
prevchr = chr;
}
/*
* **************************************************
* * *
* * Print Sign Character *
* * *
* **************************************************
*/
static void PSign(int sign)
{
if (sign == '-')
PCharWrap('-');
else
PCharWrap(' ');
}
/*
* **************************************************
* * *
* * Print Exponent on Printer *
* * *
* **************************************************
*/
static void PExponent(long exponent)
{
if (prevchr != ' ')
PChar(' ');
PChar('e');
PInteger(exponent);
}
/*
* **************************************************
* * *
* * Writing routines *
* * *
* **************************************************
*/
/*
* **************************************************
* * *
* * Write Registers [lo to hi] *
* * *
* **************************************************
*/
extern void WriteReg(int lo, int hi)
{
int r;
for (r = lo; r <= hi; r++) {
CurPos(r + 4, SIGNDISPCOL);
WriteNumber(®[r]);
}
}
/*
* **************************************************
* * *
* * Write Stack [lo to hi] *
* * *
* **************************************************
*/
extern void WriteStack(int lo, int hi)
{
int s;
for (s = hi; s >= lo; s--) {
CurPos(XSIGNROW - s, SIGNDISPCOL);
WriteNumber(&stack[s]);
}
}
/*
* **************************************************
* * *
* * Write Number [*number] on Screen *
* * *
* **************************************************
*/
extern void WriteNumber(NORMTYPE *nbr)
{
long exponent;
int i, digits;
EraEol();
if (nbr->digits == 0) {
WString(" 0");
return;
}
if (nbr->sign == '-')
WChar('-');
else
WChar(' ');
ppos = MINDISPCOL;
digits = nbr->digits;
exponent = nbr->exp;
if ( (scinotation)
||
(exponent < MINFLOATDSP)
||
(exponent > MAXFLOATDSP)
||
(exponent > normprec) )
{ /* Scientific Notation */
WChar(nbr->man[0]+ '0'); /* First digit and decimal point */
WChar(DISPDECIMAL);
ppos += 2;
if (digits <= 1) { /* If no more digits, */
WChar('0'); /* print one zero */
ppos++;
}
else
for (i = 1; i < digits; i++) { /* print remaining digits */
WChar(nbr->man[i]+ '0');
if (++ppos >= MAXDISPCOL)
break;
}
WExponent(nbr->exp - 1L); /* Write exponent */
} /* Scientific Notation end */
else
{ /* Floating Decimal */
if (exponent <= 0L)
{ /* Number < 1 */
WChar(DISPDECIMAL); /* Decimal point */
ppos++;
for (i = 0; i > (int)exponent; i--) { /* Zeros to left of number */
WChar('0');
ppos++;
}
for (i = 0; i < digits; i++) { /* Write number digits */
WChar(nbr->man[i] + '0');
if (++ppos > 79) /* Until end of digits or line */
break;
}
} /* Number < 1 end */
else
{ /* Number >= 1 */
for (i = 0; i < (int)exponent; i++) { /* Digits to left of decimal */
if (i < digits)
WChar(nbr->man[i] + '0'); /* Mantissa digits while they last */
else
WChar('0'); /* Zeros if mantissa exhausted */
ppos++;
}
if (i < digits) { /* Write digits to right of decimal */
WChar(DISPDECIMAL);
ppos++;
for (i = (int)exponent; i < digits; i++) {
WChar(nbr->man[i] + '0');
if (++ppos > 79)
break;
}
}
} /* Number >= 1 end */
} /* Floating Decimal end */
}
/*
* **************************************************
* * *
* * Write Exponent on Screen *
* * *
* **************************************************
*/
static void WExponent(long exponent)
{
WString(" e");
WInteger(exponent);
}
/*
* **************************************************
* * *
* * Get Prompted Character *
* * *
* **************************************************
*/
extern int GetPrompt(void)
{
if (menucleared) { /* Restore menu if cleared */
OnScreenMenu();
menucleared = FALSE;
}
if (charpresent) { /* Character passed from routine */
charpresent = FALSE;
return(chr);
}
else { /* Get character */
Message("(Esc to Exit)");
return(GetChar());
}
}
/*
* **************************************************
* * *
* * Overflow Message *
* * *
* **************************************************
*/
extern void Overflow(void)
{
Beep();
MessageWait("** Overflow **");
}
/*
* **************************************************
* * *
* * Divide By Zero Message *
* * *
* **************************************************
*/
extern void DivideByZero(void)
{
Beep();
MessageWait("** Divide by zero **");
}
/*
* **************************************************
* * *
* * Zero Argument Message *
* * *
* **************************************************
*/
extern void ZeroArgument(void)
{
Beep();
MessageWait("** Zero Argument **");
}
/*
* **************************************************
* * *
* * Negative Argument Message *
* * *
* **************************************************
*/
extern void NegativeArgument(void)
{
Beep();
MessageWait("** Negative Argument **");
}
/*
* **************************************************
* * *
* * Argument not Integer Message *
* * *
* **************************************************
*/
extern void ArgumentNotInteger(void)
{
Beep();
MessageWait("** Argument not Integer **");
}
/*
* **************************************************
* * *
* * Argument Invalid *
* * *
* **************************************************
*/
extern void ArgumentInvalid(void)
{
Beep();
MessageWait("** Argument Invalid **");
}
/*
* **************************************************
* * *
* * Insufficient Memory Message *
* * *
* **************************************************
*/
extern void MemoryError(void)
{
Beep();
MessageWait("** Insufficient Memory **");
}
/*
* **************************************************
* * *
* * Screen Routines *
* * *
* **************************************************
*/
/*
* **************************************************
* * *
* * On Screen Menu *
* * *
* **************************************************
*/
extern void OnScreenMenu(void)
{
CurPos(19, 1);
EraEop();
WriteAt(20, 1, "0-9.E Number + >Add X >Xchg X R V >View full");
WriteAt(21, 1, " S ChgSign - >Sub Lft/Rt >Xchg X Y F >Float/Sci");
WriteAt(22, 1, "BkSpc Clear X * >Mul Up/Dwn >Roll UpDn G >Group 3/5");
WriteAt(23, 1, "Enter >Enter / >Div PgUp >Store P >Print");
WriteAt(24, 1, " L >Last X C >Clear PgDn >Recall D >Disk/Print");
WriteAt(19, 58, "(M rotates Fn key menu)");
if (! menunbr) {
WriteAt(20, 61, "F1 >Help F2 >Y^X");
WriteAt(21, 61, "F3 >√X F4 >X²");
WriteAt(22, 61, "F5 >1/X F6 >X!");
WriteAt(23, 61, "F7 >INT F8 >FRAC");
WriteAt(24, 61, "F9 >π F0 >e");
}
else {
WriteAt(20, 60, "^F1 >sinX ^F2 >asinX");
WriteAt(21, 60, "^F3 >cosX ^F4 >acosX");
WriteAt(22, 60, "^F5 >tanX ^F6 >atanX");
WriteAt(23, 60, "^F7 >logX ^F8 >10^X");
WriteAt(24, 60, "^F9 >lnx ^F0 >e^X");
}
}
/*
* **************************************************
* * *
* * Initial Screen *
* * *
* **************************************************
*/
extern void InitialScreen(void)
{
HelpScreen1();
MessageWait("");
WorkScreen();
}
/*
* **************************************************
* * *
* * Help Screen *
* * *
* **************************************************
*/
extern void HelpScreen(void)
{
int screen;
menucleared = TRUE;
screen = 2;
do {
switch (screen) {
case (1):
HelpScreen1();
break;
case (2):
HelpScreen2();
break;
case (3):
HelpScreen3();
break;
} /* switch */
Message("(Press +=Next page, -=Prev page, Esc=Exit to BIGCALC)");
while (TRUE) {
chr = GetChar();
if (chr == '+') {
if (++screen > 3)
screen = 1;
break;
}
else if (chr == '-') {
if (--screen < 1)
screen = 3;
break;
}
else if (chr == ESCAPE)
break;
else
Beep();
} /* while (TRUE) */
} while (chr != ESCAPE);
WorkScreen();
}
/*
* **************************************************
* * *
* * Screen Header Line 1 *
* * *
* **************************************************
*/
extern void Heading1(void)
{
ScrClr();
WriteCenter(1, TITLE);
}
/*
* **************************************************
* * *
* * Screen Header Line 2 *
* * *
* **************************************************
*/
extern void Heading2(void)
{
CurPos(2, 1);
EraEol();
WriteAt(2, 8, "Precision is ");
WInteger((long) normprec);
WString(" digits, Digit grouping is ");
WInteger((long) groupsize);
WString(", Print to ");
WString(printid);
}
/*
* **************************************************
* * *
* * Display Help Screen 1 *
* * *
* **************************************************
*/
static void HelpScreen1(void)
{
Heading1();
WriteAt( 3, 1, "BIGCALC works like an H-P calculator with stack and ten m"
"emory registers.");
WriteAt( 4, 1, "Maximum precision settable from ");
WInteger((long)MINPREC);
WString(" to ");
WInteger((long)MAXNORM);
WString(" digits. Exponents to ±");
WInteger(MAXEXP);
WString(".");
WriteAt( 5, 1, "Execute BIGCALC like this:");
WriteAt( 7, 3, "BIGCALC precision (precision is maximum number of digit"
"s, default is ");
WInteger((long)DEFAULTPREC);
WString(")");
WriteAt( 9, 1, "BIGCALC has +, -, x, ÷, √X, X², X!, Y^X, logs, trig, pi, "
"e, print, much more.");
WriteAt(10, 1, "All trig functions work in radians. BIGCALC is fast, but "
"some operations on");
WriteAt(11, 1, "large numbers may take up to several minutes. You can abo"
"rt long calculations");
WriteAt(12, 1, "by pressing the Escape key. Press F1 for on-screen help. "
"Registers can be");
WriteAt(13, 1, "viewed in full, or printed to printer or disk.");
WriteAt(15, 1, "You can specify floating decimal or scientific notation d"
"isplay. Large numbers");
WriteAt(16, 1, "display in scientific notation to about 65 digits all the"
" time, but the view");
WriteAt(17, 1, "and print commands show full precision in 3 or 5 digit gr"
"oups.");
WriteAt(19, 1, " Judson D. McClendon If you like this program consi"
"der sending a small");
WriteAt(20, 1, " 329 37th Court N.E. contribution to the author. Co"
"mments are welcome.");
WriteAt(21, 1, " Birmingham, AL 35215 $20 gets you a disk with the c"
"omplete C source.");
WriteAt(22, 1, " 205-853-8440 There is no warranty of any ki"
"nd. The author assumes");
WriteAt(23, 1, "Compuserve [74415,1003] no responsibility for the use "
"of this program.");
}
/*
* **************************************************
* * *
* * Display Help Screen 2 *
* * *
* **************************************************
*/
static void HelpScreen2(void)
{
Heading1();
WriteAt( 3, 1, " KEY FUNCTION KEY FUNCTION "
"KEY FUNCTION KEY FUNCTION");
WriteAt( 4, 45, "(M rotates Fn key menu)");
WriteAt( 5, 1, "0-9.E Enter number V >View number F1 >Help "
" ^F1 >sin X");
WriteAt( 6, 1, " S change Sign F >Float/Sci F2 >Power Y^X "
" ^F2 >arcsin X");
WriteAt( 7, 1, "BkSpc CLX/Backspace G >Group 3/5 F3 >Sq root √x "
" ^F3 >cos X");
WriteAt( 8, 1, "Enter >Enter P >Print F4 >Square X² "
" ^F4 >arccos X");
WriteAt( 9, 1, " + >Add Y + X D >Disk/Print F5 >Recip 1 ÷ X "
" ^F5 >tan X");
WriteAt(10, 1, " - >Sub Y - X PgUp >Store X F6 >Fact X! "
" ^F6 >arctan X");
WriteAt(11, 1, " * >Mul Y x X PgDn >Recall X F7 >Integer XXX. "
" ^F7 >Common log X");
WriteAt(12, 1, " / >Div Y ÷ X X >eXchg X & Reg F8 >Fraction .XXX"
" ^F8 >Exponent 10^X");
WriteAt(13, 1, " C >Clear Up/Dn >Roll Up/Dn F9 >Recall π to X"
" ^F9 >Natural log X");
WriteAt(14, 1, " L >Last X Lft/Rt >Exchg X & Y F10 >Recall e to X"
" ^F10 >Exponent e^X");
WriteAt(16, 5, "To enter a number just begin typing it in. Use Backspace "
"to back up.");
WriteAt(17, 5, "To enter an exponent press E then enter the exponent.");
WriteAt(18, 5, "Press S while entering mantissa or exponent to change res"
"pective sign.");
WriteAt(19, 5, "If you start a number with E a mantissa of 1 is assumed.");
WriteAt(20, 5, "Functions marked '>' complete a number being entered befo"
"re acting.");
WriteAt(21, 5, "View displays any register to full precision.");
WriteAt(22, 5, "Clear, Print, View, Store, Recall & eXchange ask for affe"
"cted register.");
WriteAt(23, 5, "BackSpace backs up while entering number, otherwise acts "
"as Clear X.");
WriteAt(24, 5, "M rotates function key menus. ^ means control: ^F1 = ctrl"
"-F1");
}
/*
* **************************************************
* * *
* * Display Help Screen 3 *
* * *
* **************************************************
*/
static void HelpScreen3(void)
{
Heading1();
WriteAt( 3, 1, "This program emulates a Hewlett-Packard calculator w"
"ith four register stack");
WriteAt( 4, 1, "and ten memory registers. The stack consists of the"
" X, Y, Z & T registers.");
WriteAt( 5, 1, "The memory registers are 0-9.");
WriteAt( 7, 1, "The X register is 'where the action is'. When you e"
"nter a number it is entered");
WriteAt( 8, 1, "into the X register. If X already contains a number"
", that number is 'pushed'");
WriteAt( 9, 1, "up to Y, Y is pushed to Z, Z to T, and the contents "
"of T is lost. The 'Enter'");
WriteAt(10, 1, "key pushes the stack and duplicates X into Y. A numb"
"er entered into X after");
WriteAt(11, 1, "Enter or ClearX DOES NOT push the stack. When you us"
"e a function that acts on");
WriteAt(12, 1, "two numbers (like + or -) it always acts on X & Y (e"
"xcept for Store, Recall &");
WriteAt(13, 1, "eXchange which act on X and a memory register). The"
" result is put in X, and");
WriteAt(14, 1, "the stack is 'Dropped'. That is, Z copies to Y and "
"T duplicates into Z.");
WriteAt(16, 1, "Numbers are displayed in 'Floating Decimal' or 'Scie"
"ntific Notation' format.");
WriteAt(17, 1, "Floating Decimal looks like this: 1.2 123.45 "
" -12300000000 0.000002");
WriteAt(18, 1, "Scientific Notation looks like this: 1.2 e0 1.2345 "
"e2 -1.23 e10 2.0 e-6");
WriteAt(19, 1, "Very long numbers take longer to compute, of course."
" You can abort a long");
WriteAt(20, 1, "calculation by pressing the Escape key.");
WriteAt(22, 1, "If a number is too large or small for the screen, Sc"
"ientific Notation is used.");
WriteAt(23, 1, "All results are truncated except for Y^X which is ro"
"unded: 5 up 4 down.");
}
/*
* **************************************************
* * *
* * Display Work Screen *
* * *
* **************************************************
*/
extern void WorkScreen(void)
{
int r, s;
Heading1();
Heading2();
WriteAt(3, 1, "============================="
" R E G I S T E R S "
"=============================");
for (r = 0; r <= 9; r++) {
CurPos(4 + r, 1);
WChar(r + '0');
WChar(':');
WriteReg(r, r);
}
WriteAt(14, 1, "================================="
" S T A C K "
"=================================");
for (s = 3; s >= 0; s--) {
CurPos(XSIGNROW - s, 1);
WChar(stackname[s]);
WChar(':');
WriteStack(s, s);
}
}