mirror of
git://projects.qi-hardware.com/nn-usb-fpga.git
synced 2024-12-13 22:33:09 +02:00
55 lines
911 B
C
55 lines
911 B
C
#include "plasma.h"
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#define MemoryRead(A) (*(volatile unsigned int*)(A))
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#define MemoryWrite(A,V) *(volatile unsigned int*)(A)=(V)
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int putchar(int value)
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{
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while((MemoryRead(IRQ_STATUS) & IRQ_UART_WRITE_AVAILABLE) == 0)
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;
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MemoryWrite(UART_WRITE, value);
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return 0;
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}
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int puts(const char *string)
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{
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while(*string)
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{
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if(*string == '\n')
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putchar('\r');
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putchar(*string++);
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}
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return 0;
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}
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void print_hex(unsigned long num)
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{
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long i;
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unsigned long j;
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for(i = 28; i >= 0; i -= 4)
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{
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j = (num >> i) & 0xf;
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if(j < 10)
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putchar('0' + j);
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else
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putchar('a' - 10 + j);
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}
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}
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void OS_InterruptServiceRoutine(unsigned int status)
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{
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(void)status;
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putchar('I');
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}
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int kbhit(void)
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{
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return MemoryRead(IRQ_STATUS) & IRQ_UART_READ_AVAILABLE;
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}
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int getch(void)
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{
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while(!kbhit()) ;
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return MemoryRead(UART_READ);
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}
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