66 lines
1.3 KiB
C
66 lines
1.3 KiB
C
#include <common.h>
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#include <errno.h>
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#define DISP_LINE_LEN 16
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int memory_display(const void *addr, loff_t offs, unsigned nbytes, int size, int swab)
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{
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ulong linebytes, i;
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u_char *cp;
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/* Print the lines.
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*
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* We buffer all read data, so we can make sure data is read only
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* once, and all accesses are with the specified bus width.
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*/
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do {
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char linebuf[DISP_LINE_LEN];
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uint32_t *uip = (uint *)linebuf;
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uint16_t *usp = (ushort *)linebuf;
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uint8_t *ucp = (u_char *)linebuf;
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unsigned count = 52;
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printf("%08llx:", offs);
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linebytes = (nbytes > DISP_LINE_LEN) ? DISP_LINE_LEN : nbytes;
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for (i = 0; i < linebytes; i += size) {
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if (size == 4) {
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u32 res;
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res = (*uip++ = *((uint *)addr));
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if (swab)
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res = __swab32(res);
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count -= printf(" %08x", res);
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} else if (size == 2) {
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u16 res;
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res = (*usp++ = *((ushort *)addr));
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if (swab)
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res = __swab16(res);
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count -= printf(" %04x", res);
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} else {
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count -= printf(" %02x", (*ucp++ = *((u_char *)addr)));
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}
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addr += size;
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offs += size;
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}
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while (count--)
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putchar(' ');
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cp = (uint8_t *)linebuf;
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for (i = 0; i < linebytes; i++) {
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if ((*cp < 0x20) || (*cp > 0x7e))
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putchar('.');
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else
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printf("%c", *cp);
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cp++;
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}
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putchar('\n');
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nbytes -= linebytes;
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if (ctrlc())
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return -EINTR;
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} while (nbytes > 0);
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return 0;
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}
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