[libgloss]
* configure.in: Add rl78. * configure: Regenerate. * rl78: New directory [newlib] * configure.host: Add rl78. * libc/include/machine/ieeefp.h: Add rl78 support. * libc/include/machine/setjmp.h: Add rl78 support. * libc/machine/configure.in: Add rl78. * libc/machine/rl78: New directory.
This commit is contained in:
107
libgloss/rl78/write.c
Normal file
107
libgloss/rl78/write.c
Normal file
@ -0,0 +1,107 @@
|
||||
/*
|
||||
|
||||
Copyright (c) 2010 Red Hat Incorporated.
|
||||
All rights reserved.
|
||||
|
||||
Redistribution and use in source and binary forms, with or without
|
||||
modification, are permitted provided that the following conditions are met:
|
||||
|
||||
Redistributions of source code must retain the above copyright
|
||||
notice, this list of conditions and the following disclaimer.
|
||||
|
||||
Redistributions in binary form must reproduce the above copyright
|
||||
notice, this list of conditions and the following disclaimer in the
|
||||
documentation and/or other materials provided with the distribution.
|
||||
|
||||
The name of Red Hat Incorporated may not be used to endorse
|
||||
or promote products derived from this software without specific
|
||||
prior written permission.
|
||||
|
||||
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
||||
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||||
DISCLAIMED. IN NO EVENT SHALL RED HAT INCORPORATED BE LIABLE FOR ANY
|
||||
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
||||
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
||||
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
|
||||
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
||||
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
|
||||
*/
|
||||
|
||||
/* These definitions are for the RL78/G13, which the simulator
|
||||
simulates. */
|
||||
|
||||
typedef unsigned char UQI __attribute__((mode(QI)));
|
||||
typedef unsigned int UHI __attribute__((mode(HI)));
|
||||
|
||||
#define s8(x) (*(volatile UQI *)(x))
|
||||
#define s16(x) (*(volatile UHI *)(x))
|
||||
|
||||
#define P(x) s8(0xfff00+(x))
|
||||
#define PM(x) s8(0xfff20+(x))
|
||||
|
||||
#define PER0 s8(0xf00f0)
|
||||
|
||||
#define SSR00 s16(0xf0100)
|
||||
#define SMR00 s16(0xf0110)
|
||||
#define SCR00 s16(0xf0118)
|
||||
#define SS0 s16(0xf0122)
|
||||
#define SPS0 s16(0xf0126)
|
||||
#define SO0 s16(0xf0128)
|
||||
#define SOE0 s16(0xf012a)
|
||||
#define SOL0 s16(0xf0134)
|
||||
|
||||
#define SDR00 s16(0xfff10)
|
||||
|
||||
static int initted = 0;
|
||||
|
||||
static void
|
||||
init_uart0 ()
|
||||
{
|
||||
initted = 1;
|
||||
|
||||
PER0 = 0xff;
|
||||
SPS0 = 0x0011; /* 16 MHz */
|
||||
SMR00 = 0x0022; /* uart mode */
|
||||
SCR00 = 0x8097; /* 8-N-1 */
|
||||
SDR00 = 0x8a00; /* baud in MSB - 115200 */
|
||||
SOL0 = 0x0000; /* not inverted */
|
||||
SO0 = 0x000f; /* initial value */
|
||||
SOE0 = 0x0001; /* enable TxD0 */
|
||||
P(1) |= 0b00000100;
|
||||
PM(1) &= 0b11111011;
|
||||
SS0 = 0x0001;
|
||||
}
|
||||
|
||||
static void
|
||||
tputc (char c)
|
||||
{
|
||||
/* Wait for transmit buffer to be empty. */
|
||||
while (SSR00 & 0x0020)
|
||||
asm("");
|
||||
/* Transmit that byte. */
|
||||
SDR00 = c;
|
||||
}
|
||||
|
||||
int
|
||||
_write(int fd, char *ptr, int len)
|
||||
{
|
||||
int rv = len;
|
||||
|
||||
if (!initted)
|
||||
init_uart0 ();
|
||||
|
||||
while (len != 0)
|
||||
{
|
||||
if (*ptr == '\n')
|
||||
tputc ('\r');
|
||||
tputc (*ptr);
|
||||
ptr ++;
|
||||
len --;
|
||||
}
|
||||
return rv;
|
||||
}
|
||||
|
||||
char * write (int) __attribute__((weak, alias ("_write")));
|
Reference in New Issue
Block a user