FreeOberon/data/bin/voc/bootstrap/unix-48/Out.c

/* voc 2.1.0 [2019/11/01]. Bootstrapping compiler for address size 8, alignment 8. xrtspaSF */

#define SHORTINT INT8
#define INTEGER  INT16
#define LONGINT  INT32
#define SET      UINT32

#include "SYSTEM.h"
#include "Heap.h"
#include "Platform.h"


export BOOLEAN Out_IsConsole;
static CHAR Out_buf[128];
static INT16 Out_in;


export void Out_Char (CHAR ch);
export void Out_Flush (void);
export void Out_Hex (INT64 x, INT64 n);
export void Out_Int (INT64 x, INT64 n);
static INT32 Out_Length (CHAR *s, ADDRESS s__len);
export void Out_Ln (void);
export void Out_LongReal (LONGREAL x, INT16 n);
export void Out_Open (void);
export void Out_Real (REAL x, INT16 n);
static void Out_RealP (LONGREAL x, INT16 n, BOOLEAN long_);
export void Out_String (CHAR *str, ADDRESS str__len);
export LONGREAL Out_Ten (INT16 e);
static void Out_digit (INT64 n, CHAR *s, ADDRESS s__len, INT16 *i);
static void Out_prepend (CHAR *t, ADDRESS t__len, CHAR *s, ADDRESS s__len, INT16 *i);

#define Out_Entier64(x)	(INT64)(x)

void Out_Flush (void)
{
	INT16 error;
	if (Out_in > 0) {
		error = Platform_Write(1, (ADDRESS)Out_buf, Out_in);
	}
	Out_in = 0;
}

void Out_Open (void)
{
}

void Out_Char (CHAR ch)
{
	if (Out_in >= 128) {
		Out_Flush();
	}
	Out_buf[__X(Out_in, 128)] = ch;
	Out_in += 1;
	if (ch == 0x0a) {
		Out_Flush();
	}
}

static INT32 Out_Length (CHAR *s, ADDRESS s__len)
{
	INT32 l;
	l = 0;
	while ((l < s__len && s[__X(l, s__len)] != 0x00)) {
		l += 1;
	}
	return l;
}

void Out_String (CHAR *str, ADDRESS str__len)
{
	INT32 l;
	INT16 error;
	__DUP(str, str__len, CHAR);
	l = Out_Length((void*)str, str__len);
	if (Out_in + l > 128) {
		Out_Flush();
	}
	if (l > 128) {
		error = Platform_Write(1, (ADDRESS)str, l);
	} else {
		__MOVE((ADDRESS)str, (ADDRESS)&Out_buf[__X(Out_in, 128)], l);
		Out_in += __SHORT(l, 32768);
	}
	__DEL(str);
}

void Out_Int (INT64 x, INT64 n)
{
	CHAR s[22];
	INT16 i;
	BOOLEAN negative;
	negative = x < 0;
	if (x == (-9223372036854775807LL-1)) {
		__MOVE("8085774586302733229", s, 20);
		i = 19;
	} else {
		if (x < 0) {
			x = -x;
		}
		s[0] = __CHR(48 + __MOD(x, 10));
		x = __DIV(x, 10);
		i = 1;
		while (x != 0) {
			s[__X(i, 22)] = __CHR(48 + __MOD(x, 10));
			x = __DIV(x, 10);
			i += 1;
		}
	}
	if (negative) {
		s[__X(i, 22)] = '-';
		i += 1;
	}
	while (n > (INT64)i) {
		Out_Char(' ');
		n -= 1;
	}
	while (i > 0) {
		i -= 1;
		Out_Char(s[__X(i, 22)]);
	}
}

void Out_Hex (INT64 x, INT64 n)
{
	if (n < 1) {
		n = 1;
	} else if (n > 16) {
		n = 16;
	}
	if (x >= 0) {
		while ((n < 16 && __LSH(x, -__ASHL(n, 2), 64) != 0)) {
			n += 1;
		}
	}
	x = __ROT(x, __ASHL(16 - n, 2), 64);
	while (n > 0) {
		x = __ROTL(x, 4, 64);
		n -= 1;
		if (__MASK(x, -16) < 10) {
			Out_Char(__CHR(__MASK(x, -16) + 48));
		} else {
			Out_Char(__CHR((__MASK(x, -16) - 10) + 65));
		}
	}
}

void Out_Ln (void)
{
	Out_String(Platform_NL, 3);
	Out_Flush();
}

static void Out_digit (INT64 n, CHAR *s, ADDRESS s__len, INT16 *i)
{
	*i -= 1;
	s[__X(*i, s__len)] = __CHR(__MOD(n, 10) + 48);
}

static void Out_prepend (CHAR *t, ADDRESS t__len, CHAR *s, ADDRESS s__len, INT16 *i)
{
	INT16 j;
	INT32 l;
	__DUP(t, t__len, CHAR);
	l = Out_Length((void*)t, t__len);
	if (l > *i) {
		l = *i;
	}
	*i -= __SHORT(l, 32768);
	j = 0;
	while (j < l) {
		s[__X(*i + j, s__len)] = t[__X(j, t__len)];
		j += 1;
	}
	__DEL(t);
}

LONGREAL Out_Ten (INT16 e)
{
	LONGREAL r, power;
	r = (LONGREAL)1;
	power = (LONGREAL)10;
	while (e > 0) {
		if (__ODD(e)) {
			r = r * power;
		}
		power = power * power;
		e = __ASHR(e, 1);
	}
	return r;
}

static void Out_RealP (LONGREAL x, INT16 n, BOOLEAN long_)
{
	INT16 e;
	INT64 f;
	CHAR s[30];
	INT16 i, el;
	LONGREAL x0;
	BOOLEAN nn, en;
	INT64 m;
	INT16 d, dr;
	e = (INT16)__MASK(__ASHR((__VAL(INT64, x)), 52), -2048);
	f = __MASK((__VAL(INT64, x)), -4503599627370496LL);
	nn = (__VAL(INT64, x) < 0 && !((e == 2047 && f != 0)));
	if (nn) {
		n -= 1;
	}
	i = 30;
	if (e == 2047) {
		if (f == 0) {
			Out_prepend((CHAR*)"Infinity", 9, (void*)s, 30, &i);
		} else {
			Out_prepend((CHAR*)"NaN", 4, (void*)s, 30, &i);
		}
	} else {
		if (long_) {
			el = 3;
			dr = n - 6;
			if (dr > 17) {
				dr = 17;
			}
			d = dr;
			if (d < 15) {
				d = 15;
			}
		} else {
			el = 2;
			dr = n - 5;
			if (dr > 9) {
				dr = 9;
			}
			d = dr;
			if (d < 6) {
				d = 6;
			}
		}
		if (e == 0) {
			while (el > 0) {
				i -= 1;
				s[__X(i, 30)] = '0';
				el -= 1;
			}
			i -= 1;
			s[__X(i, 30)] = '+';
			m = 0;
		} else {
			if (nn) {
				x = -x;
			}
			e = __SHORT(__ASHR((e - 1023) * 77, 8), 32768);
			if (e >= 0) {
				x = x / (LONGREAL)Out_Ten(e);
			} else {
				x = Out_Ten(-e) * x;
			}
			if (x >= (LONGREAL)10) {
				x =   1.00000000000000e-001 * x;
				e += 1;
			}
			en = e < 0;
			if (en) {
				e = -e;
			}
			while (el > 0) {
				Out_digit(e, (void*)s, 30, &i);
				e = __DIV(e, 10);
				el -= 1;
			}
			i -= 1;
			if (en) {
				s[__X(i, 30)] = '-';
			} else {
				s[__X(i, 30)] = '+';
			}
			x0 = Out_Ten(d - 1);
			x = x0 * x;
			x = x +   5.00000000000000e-001;
			if (x >= (LONGREAL)10 * x0) {
				x =   1.00000000000000e-001 * x;
				e += 1;
			}
			m = Out_Entier64(x);
		}
		i -= 1;
		if (long_) {
			s[__X(i, 30)] = 'D';
		} else {
			s[__X(i, 30)] = 'E';
		}
		if (dr < 2) {
			dr = 2;
		}
		while ((d > dr && __MOD(m, 10) == 0)) {
			m = __DIV(m, 10);
			d -= 1;
		}
		while (d > 1) {
			Out_digit(m, (void*)s, 30, &i);
			m = __DIV(m, 10);
			d -= 1;
		}
		i -= 1;
		s[__X(i, 30)] = '.';
		Out_digit(m, (void*)s, 30, &i);
	}
	n -= 30 - i;
	while (n > 0) {
		Out_Char(' ');
		n -= 1;
	}
	if (nn) {
		Out_Char('-');
	}
	while (i < 30) {
		Out_Char(s[__X(i, 30)]);
		i += 1;
	}
}

void Out_Real (REAL x, INT16 n)
{
	Out_RealP(x, n, 0);
}

void Out_LongReal (LONGREAL x, INT16 n)
{
	Out_RealP(x, n, 1);
}


export void *Out__init(void)
{
	__DEFMOD;
	__MODULE_IMPORT(Heap);
	__MODULE_IMPORT(Platform);
	__REGMOD("Out", 0);
	__REGCMD("Flush", Out_Flush);
	__REGCMD("Ln", Out_Ln);
	__REGCMD("Open", Out_Open);
/* BEGIN */
	Out_IsConsole = Platform_IsConsole(1);
	Out_in = 0;
	__ENDMOD;
}