jens
8867efa451
Committed on the Free edition of March Hare Software CVSNT Server. Upgrade to CVS Suite for more features and support: http://march-hare.com/cvsnt/ git-svn-id: http://moon:8086/svn/vhdl/trunk@272 cc03376c-175c-47c8-b038-4cd826a8556b
143 lines
1.9 KiB
C
143 lines
1.9 KiB
C
#include <sys/times.h>
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#include <sys/time.h>
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#include <sys/resource.h>
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#include <sys/stat.h>
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#include <errno.h>
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#include <stdlib.h>
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#include "libsys_boot.h"
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// ---------------------------------------------------------------------------------
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// MIPS specific
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UINT32 CP0_SR_read(void)
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{
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UINT32 result;
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__asm
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(
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"mfc0 %[val], $12\n"
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: [val] "=r" (result)
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);
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return result;
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}
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void CP0_SR_write(UINT32 val)
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{
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__asm
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(
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"mtc0 %[val], $12\n"
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: /* no output */
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: [val] "r" (val)
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);
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}
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UINT32 CP0_CR_read(void)
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{
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UINT32 result;
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__asm
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(
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"mfc0 %[val], $13\n"
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: [val] "=r" (result)
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);
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return result;
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}
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void CP0_CR_write(UINT32 val)
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{
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__asm
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(
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"mtc0 %[val], $13\n"
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:
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: [val] "r" (val)
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);
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}
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UINT32 CP0_PRID_read(void)
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{
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UINT32 result;
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__asm
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(
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"mfc0 %[val], $15\n"
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: [val] "=r" (result)
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);
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return result;
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}
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// ---------------------------------------------------------------------------------
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char readchar(void)
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{
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volatile UINT32 *pUART_stat = (UINT32*)sys_uart_stat;
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volatile UINT32 *pUART_data = (UINT32*)sys_uart_data;
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while(!(0x10 & *pUART_stat));
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return (char)*pUART_data;
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}
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void writechar(char c)
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{
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volatile UINT32 *pUART_stat = (UINT32*)sys_uart_stat;
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volatile UINT32 *pUART_data = (UINT32*)sys_uart_data;
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while((0x02 & *pUART_stat) != 0);
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*pUART_data = (UINT32)c;
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}
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void _putchar(char c)
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{
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if (c == 0x0A)
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{
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writechar(0x0D);
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}
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writechar(c);
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}
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int sputs(char *pStr)
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{
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char *start;
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start = pStr;
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while(*pStr)
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_putchar(*(pStr++));
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return pStr - start;
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}
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void print_byte(char byte)
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{
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int i;
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unsigned char c, nibble;
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for (i=0; i < 2; i++)
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{
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nibble = (char)((byte >> 4) & 0xF);
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byte <<= 4;
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if (nibble < 10)
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c = nibble + '0';
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else
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c = nibble + 'A' - 10;
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_putchar(c);
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}
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}
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void print_word(int word)
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{
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int i;
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unsigned char c, nibble;
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for (i=0; i < 4; i++)
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{
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c = (char) (word >> 24);
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print_byte(c);
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word <<= 8;
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}
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}
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