* Makefile.in, configure.in, configure,

[fw/sdcc] / device / lib / ser_ir_cts_rts.c

diff --git a/device/lib/ser_ir_cts_rts.c b/device/lib/ser_ir_cts_rts.c
old mode 100755 (executable)
new mode 100644 (file)
index 9be6d72..51069fe
--- a/device/lib/ser_ir_cts_rts.c
+++ b/device/lib/ser_ir_cts_rts.c
@@ -34,8 +34,6 @@
 *   so it can run on devices with _little_ memory like at89cx051.
 * - It won't overwrite characters which already are stored in the
 *   receive-/transmit-buffer.
-* - It checks receiver first to minimize probability for overruns
-*   in the serial receiver.
 */
 
 /* BUG: those definitions (and the #include) should be set dynamically
@@ -88,9 +86,10 @@
 #define CTS P3_6          // CTS & RTS can be assigned to any free pins
 #define RTS P3_7
 
+// You might want to specify idata, pdata or xdata for the buffers
 static unsigned char rxbuf[RXBUFLEN], txbuf[TXBUFLEN];
 static unsigned char rxcnt, txcnt, rxpos, txpos;
-static unsigned char busy;
+static bit busy;
 
 void ser_init()
 {
@@ -117,7 +116,7 @@ void ser_handler(void) interrupt 4
   if (RI) {
     RI = 0;
     /* don't overwrite chars already in buffer */
-    if(rxcnt < RXBUFLEN) rxbuf [(rxpos + rxcnt++) % RXBUFLEN] = SBUF;
+    if(rxcnt < RXBUFLEN) rxbuf [(unsigned char)(rxpos + rxcnt++) % RXBUFLEN] = SBUF;
     if(rxcnt >= (RXBUFLEN - THRESHOLD)) CTS = DISABLE;
   }
 
@@ -139,7 +138,7 @@ void ser_putc(unsigned char c)
 
   ES = 0;
   if (busy) {
-    txbuf[(txpos + txcnt++) % TXBUFLEN] = c;
+    txbuf[(unsigned char)(txpos + txcnt++) % TXBUFLEN] = c;
   } else {
     SBUF = c;
     busy = 1;
@@ -163,17 +162,17 @@ unsigned char ser_getc(void)
   return (c);
 }
 
-#pragma SAVE
-#pragma NOINDUCTION
+#pragma save
+#pragma noinduction
 void ser_puts(unsigned char *s)
 {
   unsigned char c;
   while (c= *s++) {
-    if (c == LF) ser_putc(CR);
+    if (c == '\n') ser_putc('\r');
     ser_putc (c);
   }
 }
-#pragma RESTORE
+#pragma restore
 
 void ser_gets(unsigned char *s, unsigned char len)
 {
@@ -182,9 +181,9 @@ void ser_gets(unsigned char *s, unsigned char len)
   pos = 0;
   while (pos <= len) {
     c = ser_getc();
-    if (c == CR) continue;        // discard CR's
+    if (c == '\r') continue;        // discard CR's
     s[pos++] = c;
-    if (c == LF) break;           // NL terminates
+    if (c == '\n') break;           // NL terminates
   }
   s[pos] = '\0';                  // terminate string
 }
@@ -197,4 +196,4 @@ unsigned char ser_can_xmt(void)
 unsigned char ser_can_rcv(void)
 {
   return rxcnt;
-}
\ No newline at end of file
+}