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CPM OPERATING SYSTEMS/CPM 68K/1.0X SOURCES/v101/klib/putc.c

@@ -0,0 +1,63 @@
+#define BLEN 512
+
+struct iob {
+	int fd;		/*file descriptor*/
+	int cc;		/*char count*/
+	char *cp;	/*ptr to next char*/
+	char cbuf[BLEN];	/*char buffer*/
+};
+
+fcreat(fname,ibuf,x)
+char *fname;
+int  x;
+register struct iob *ibuf;
+{
+
+	ibuf->cc = BLEN;	/*no chars*/
+	ibuf->cp = &(ibuf->cbuf[0]);
+	x = (x == 0) ? 0 : 1;
+	return(ibuf->fd=creat(fname,2,x));
+}
+
+putc(c,ibuf)
+char c;
+register struct iob *ibuf;
+{
+
+	if(ibuf->cc<=0) {
+		ibuf->cp = &(ibuf->cbuf[0]);
+		if(write(ibuf->fd,ibuf->cp,BLEN) != BLEN)
+			return(-1);
+		ibuf->cc = BLEN;
+	}
+	*(ibuf->cp)++ = c;
+	ibuf->cc--;
+	return(c);
+}
+
+putw(w,ibuf)
+int w;
+register struct iob *ibuf;
+{
+
+	register j;
+	int i;
+
+	putc((w>>8)&0xff,ibuf);
+	putc(w&0xff,ibuf);
+	return(w);
+}
+
+myfflush(ibuf)
+register struct iob *ibuf;
+{
+
+	register i;
+
+	i = BLEN - ibuf->cc;
+	ibuf->cc = BLEN;
+	ibuf->cp = &(ibuf->cbuf[0]);
+	if(write(ibuf->fd,ibuf->cp,i) != i)
+		return(-1);
+	return(0);
+}