0752cc4b8c
This code creates a shared mapping in high ram, makes sure that that works, and also makes sure that the memory which is mapped over is left unchanged.
64 lines
1.3 KiB
C
64 lines
1.3 KiB
C
#include <stdint.h>
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#include <conio.h>
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#include "board_io.h"
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#include "uart.h"
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#include "mapper.h"
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int main() {
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int i;
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uint8_t sw;
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char s[16];
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s[15] = 0;
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clrscr();
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cprintf("Hello, world!\n");
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for (i = 0; i < 16; i++){
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cprintf("Mapping %1xxxx to %2xxxx\n", i, i);
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mapper_write(i, i);
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}
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cprintf("Enabling Mapper\n");
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mapper_enable(1);
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cprintf("Writing 0xcccc to 0x4000\n");
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*(unsigned int*)(0x4000) = 0xcccc;
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cprintf("Writing 0xdddd to 0x5000\n");
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*(unsigned int*)(0x5000) = 0xdddd;
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cprintf("Mapping %1xxxx to %2xxxx\n", 4, 16);
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mapper_write(16, 4);
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cprintf("Mapping %1xxxx to %2xxxx\n", 5, 16);
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mapper_write(16, 5);
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cprintf("Writing 0xa5a5 to 0x4000\n");
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*(unsigned int*)(0x4000) = 0xa5a5;
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cprintf("Reading from 0x5000: %x\n", *(unsigned int*)(0x5000));
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cprintf("Resetting map\n");
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mapper_write(4, 4);
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mapper_write(5, 5);
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cprintf("Reading from 0x4000: %x\n", *(unsigned int*)(0x4000));
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cprintf("Reading from 0x5000: %x\n", *(unsigned int*)(0x5000));
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while (1) {
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sw = sw_read();
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led_set(sw);
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cscanf("%15s", s);
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cprintf("\n");
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for (i = 0; i < 16; i++)
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cprintf("s[%d]=%c ", i, s[i]);
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cprintf("\n");
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cprintf("Read string: %s\n", s);
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}
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return 0;
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}
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