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2017-09-24 01:45:36 +02:00 · 2017-09-24 01:45:36 +02:00 · 43352ff262
commit 43352ff262
1291 changed files with 220976 additions and 0 deletions
--- a/GRID/DOLINE.C
+++ b/GRID/DOLINE.C
@ -0,0 +1,126 @@
+// create code for line blitter
+
+#include <stdio.h>
+#include <string.h>
+
+char *vram=(char *)0xa0000000L+320*16+16;
+char *vram0=(char *)0xa0000000L;
+
+FILE	*out;
+
+int	isor;
+
+void	line(int x1,int y1,int x2,int y2)
+{
+	int	xd,xds;
+	int	yd,yds;
+	int	a,d,c,x,y;
+	xd=x2-x1;
+	if(xd<0)
+	{
+		xd=-xd;
+		xds=-1;
+	}
+	else xds=1;
+	yd=y2-y1;
+	if(yd<0)
+	{
+		yd=-yd;
+		yds=-1;
+	}
+	else yds=1;
+	if(xd>yd)
+	{
+		d=-xd/2;
+		while(x1!=x2 || y1!=y2)
+		{
+			kbhit();
+			vram[x1+y1*320]=2;
+			x1+=xds;
+			d+=yd;
+			if(d>0)
+			{
+				d-=xd;
+				y1+=yds;
+			}
+		}
+	}
+	else 
+	{
+		d=-yd/2;
+		while(x1!=x2 || y1!=y2)
+		{
+			kbhit();
+			vram[x1+y1*320]=2;
+			y1+=yds;
+			d+=xd;
+			if(d>0)
+			{
+				d-=yd;
+				x1+=xds;
+			}
+		}
+	}
+	vram[x2+y2*320]=1;
+	fprintf(out,"lblt_%ib%i:\n",x2&63,y2&63);
+	for(y=-16;y<16;y++) for(x=-16;x<16;x++) if(vram[x+y*320]==2)
+	{
+		if(vram[x+y*320+1]==2)
+		{
+			fprintf(out,"mov ax,gs:[di+%i]\n",x+y*320);
+			fprintf(out,"xor ax,dx\n");
+			fprintf(out,"mov gs:[di+%i],ax\n",x+y*320);
+			fprintf(out,"mov es:[di+%i],ax\n",x+y*320);
+			vram[x+y*320]=vram[x+y*320+1]=0;
+		}
+		else
+		{
+			fprintf(out,"mov al,gs:[di+%i]\n",x+y*320);
+			fprintf(out,"xor al,dl\n");
+			fprintf(out,"mov gs:[di+%i],al\n",x+y*320);
+			fprintf(out,"mov es:[di+%i],al\n",x+y*320);
+			vram[x+y*320]=0;
+		}
+		c++;
+	}
+}
+
+#define MINX 10
+#define MAXX 10
+#define MINY 8
+#define MAXY 8
+
+main()
+{
+	int	x,y;
+	_asm mov ax,13h
+	_asm int 10h
+	out=fopen("lineblit.inc","wt");
+	fprintf(out,";LineBlitter core - created by doline.c\n");
+	fprintf(out,"dw OFFSET lblt_1b0 ;only dot\n",x&63,y&63);
+	fprintf(out,"lblt_table LABEL WORD\n");
+	for(isor=0;isor>=0;isor--)
+	{
+		for(y=-MINY;y<=MAXY;y++)
+		{
+			for(x=-MINX;x<=MAXX;x++)
+			{
+				fprintf(out,"dw OFFSET lblt_%i%b%i\n",x&63,y&63);
+			}
+		}
+	}
+	for(isor=0;isor>=0;isor--)
+	{
+		for(y=-MINY;y<=MAXY;y++)
+		{
+			for(x=-MINX;x<=MAXX;x++)
+			{
+				line(0,0,x,y);
+				fprintf(out,"ret\n",x,y);
+			}
+		}
+	}
+	fclose(out);
+	_asm mov ax,3h
+	_asm int 10h
+}