0,0 → 1,92 |
/* |
* Copyright (C) 2005 Jakub Jermar |
* 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 the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE AUTHOR 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. |
*/ |
|
#include <arch/ski/ski.h> |
|
/** Initialize debug console |
* |
* Issue SSC (Simulator System Call) to |
* to open debug console. |
*/ |
void ski_init_console(void) |
{ |
__asm__ ( |
"mov r15=%0\n" |
"break 0x80000\n" |
: |
: "i" (SKI_INIT_CONSOLE) |
: "r15", "r8" |
); |
} |
|
/** Display character on debug console |
* |
* Use SSC (Simulator System Call) to |
* display character on debug console. |
* |
* @param ch Character to be printed. |
*/ |
void ski_putchar(const char ch) |
{ |
__asm__ ( |
"mov r15=%0\n" |
"mov r32=%1\n" /* r32 is in0 */ |
"break 0x80000\n" /* modifies r8 */ |
: |
: "i" (SKI_PUTCHAR), "r" (ch) |
: "r15", "in0", "r8" |
); |
|
if (ch == '\n') ski_putchar('\r'); |
} |
|
/** Ask debug console if a key was pressed. |
* |
* Use SSC (Simulator System Call) to |
* get character from debug console. |
* |
* This call is non-blocking. |
* |
* @return ASCII code of pressed key or 0 if no key pressed. |
*/ |
__s32 ski_getchar(void) |
{ |
__u64 ch; |
|
__asm__ ( |
"mov r15=%0\n" |
"break 0x80000;;\n" /* modifies r8 */ |
"mov %1=r8;;\n" |
|
: |
: "i" (SKI_GETCHAR), "r" (ch) |
: "r15", "r8" |
); |
|
return (__s32)ch; |
} |