From 86ec6edbe9851ff7e2dd0bd5412d30461cfb2f59 Mon Sep 17 00:00:00 2001 From: Joel Sherrill Date: Mon, 27 Nov 2000 16:00:50 +0000 Subject: 2000-11-27 Joel Sherrill * The shsim is for the SH simulator in gdb. It should be able to be used with multiple SH CPU models. * .cvsignore, ChangeLog, Makefile.am, README, bsp_specs, configure.in, clock/.cvsignore, clock/Makefile.am, clock/clockdrv.c, console/.cvsignore, console/Makefile.am, console/console-io.c, console/console-support.S, include/.cvsignore, include/Makefile.am, include/bsp.h, start/.cvsignore, start/Makefile.am, start/regs.S, start/start.S, startup/.cvsignore, startup/Makefile.am, startup/bspstart.c, startup/linkcmds, wrapup/.cvsignore, wrapup/Makefile.am: New files. --- c/src/lib/libbsp/sh/shsim/console/console-io.c | 62 ++++++++++++++++++++++++++ 1 file changed, 62 insertions(+) create mode 100644 c/src/lib/libbsp/sh/shsim/console/console-io.c (limited to 'c/src/lib/libbsp/sh/shsim/console/console-io.c') diff --git a/c/src/lib/libbsp/sh/shsim/console/console-io.c b/c/src/lib/libbsp/sh/shsim/console/console-io.c new file mode 100644 index 0000000000..dfbb970d33 --- /dev/null +++ b/c/src/lib/libbsp/sh/shsim/console/console-io.c @@ -0,0 +1,62 @@ +/* + * This file contains the hardware specific portions of the TTY driver + * for the simulators stdin/out. + * + * Logic based on newlib-1.8.2/newlib/libc/sys/sh/syscalls.c + * + * COPYRIGHT (c) 1989-2000. + * On-Line Applications Research Corporation (OAR). + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.OARcorp.com/rtems/license.html. + * + * $Id$ + */ + +#include +#include +#include +#include + + +#define SYS_exit 1 +#define SYS_read 3 +#define SYS_write 4 + + +/* + * console_outbyte_polled + * + * This routine transmits a character using polling. + */ + +void console_outbyte_polled( + int port, + char ch +) +{ + return __trap34 (SYS_write, 1, &ch, 1); +} + +/* + * console_inbyte_nonblocking + * + * This routine polls for a character. + */ + +int console_inbyte_nonblocking( + int port +) +{ + unsigned char c; + + return __trap34 (SYS_read, 0, &c, 1); +} + +/* XXX wrong place for this */ +_sys_exit (n) +{ + return __trap34 (SYS_exit, n, 0, 0); +} + -- cgit v1.2.3