removing (outdated) drawterm

drawterm is much better maintained by russ cox,
so removing this outdated copy.

for a more recent version, go to:

http://swtch.com/drawterm/

1 files changed, 0 insertions, 185 deletions

diff --git a/sys/src/cmd/unix/drawterm/libmp/mpaux.c b/sys/src/cmd/unix/drawterm/libmp/mpaux.c
deleted file mode 100644
index 9d3313810..000000000
--- a/sys/src/cmd/unix/drawterm/libmp/mpaux.c
+++ /dev/null
@@ -1,185 +0,0 @@
-#include "os.h"
-#include <mp.h>
-#include "dat.h"
-
-static mpdigit _mptwodata[1] = { 2 };
-static mpint _mptwo =
-{
-	1,
-	1,
-	1,
-	_mptwodata,
-	MPstatic
-};
-mpint *mptwo = &_mptwo;
-
-static mpdigit _mponedata[1] = { 1 };
-static mpint _mpone =
-{
-	1,
-	1,
-	1,
-	_mponedata,
-	MPstatic
-};
-mpint *mpone = &_mpone;
-
-static mpdigit _mpzerodata[1] = { 0 };
-static mpint _mpzero =
-{
-	1,
-	1,
-	0,
-	_mpzerodata,
-	MPstatic
-};
-mpint *mpzero = &_mpzero;
-
-static int mpmindigits = 33;
-
-// set minimum digit allocation
-void
-mpsetminbits(int n)
-{
-	if(n == 0)
-		n = 1;
-	mpmindigits = DIGITS(n);
-}
-
-// allocate an n bit 0'd number 
-mpint*
-mpnew(int n)
-{
-	mpint *b;
-
-	b = mallocz(sizeof(mpint), 1);
-	if(b == nil)
-		sysfatal("mpnew: %r");
-	n = DIGITS(n);
-	if(n < mpmindigits)
-		n = mpmindigits;
-	n = n;
-	b->p = (mpdigit*)mallocz(n*Dbytes, 1);
-	if(b->p == nil)
-		sysfatal("mpnew: %r");
-	b->size = n;
-	b->sign = 1;
-
-	return b;
-}
-
-// guarantee at least n significant bits
-void
-mpbits(mpint *b, int m)
-{
-	int n;
-
-	n = DIGITS(m);
-	if(b->size >= n){
-		if(b->top >= n)
-			return;
-		memset(&b->p[b->top], 0, Dbytes*(n - b->top));
-		b->top = n;
-		return;
-	}
-	b->p = (mpdigit*)realloc(b->p, n*Dbytes);
-	if(b->p == nil)
-		sysfatal("mpbits: %r");
-	memset(&b->p[b->top], 0, Dbytes*(n - b->top));
-	b->size = n;
-	b->top = n;
-}
-
-void
-mpfree(mpint *b)
-{
-	if(b == nil)
-		return;
-	if(b->flags & MPstatic)
-		sysfatal("freeing mp constant");
-	memset(b->p, 0, b->top*Dbytes);	// information hiding
-	free(b->p);
-	free(b);
-}
-
-void
-mpnorm(mpint *b)
-{
-	int i;
-
-	for(i = b->top-1; i >= 0; i--)
-		if(b->p[i] != 0)
-			break;
-	b->top = i+1;
-	if(b->top == 0)
-		b->sign = 1;
-}
-
-mpint*
-mpcopy(mpint *old)
-{
-	mpint *new;
-
-	new = mpnew(Dbits*old->size);
-	new->top = old->top;
-	new->sign = old->sign;
-	memmove(new->p, old->p, Dbytes*old->top);
-	return new;
-}
-
-void
-mpassign(mpint *old, mpint *new)
-{
-	mpbits(new, Dbits*old->top);
-	new->sign = old->sign;
-	new->top = old->top;
-	memmove(new->p, old->p, Dbytes*old->top);
-}
-
-// number of significant bits in mantissa
-int
-mpsignif(mpint *n)
-{
-	int i, j;
-	mpdigit d;
-
-	if(n->top == 0)
-		return 0;
-	for(i = n->top-1; i >= 0; i--){
-		d = n->p[i];
-		for(j = Dbits-1; j >= 0; j--){
-			if(d & (((mpdigit)1)<<j))
-				return i*Dbits + j + 1;
-		}
-	}
-	return 0;
-}
-
-// k, where n = 2**k * q for odd q
-int
-mplowbits0(mpint *n)
-{
-	int k, bit, digit;
-	mpdigit d;
-
-	if(n->top==0)
-		return 0;
-	k = 0;
-	bit = 0;
-	digit = 0;
-	d = n->p[0];
-	for(;;){
-		if(d & (1<<bit))
-			break;
-		k++;
-		bit++;
-		if(bit==Dbits){
-			if(++digit >= n->top)
-				return 0;
-			d = n->p[digit];
-			bit = 0;
-		}
-	}
-	return k;
-}
-