prex-old/boot/arm/cats/head.S - diff

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-version 1.2, 2008/07/17 22:00:25
+version 1.3, 2008/07/20 23:37:35
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 Line 106
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   * Start kernel
   */
  ENTRY(start_kernel)
+         /*
+          * XXX Copy kernel vectors and their displacement constants
+          * XXX to the beginning of physical memory.
+          * NOTE: it shouldn't hurt if we replace first 15 words of ourselfes.
+          */
+         mov r2, #0      /* counter */
+         mov r3, #15     /* num. of current insn */
+         mov r4, #0      /* save addr */
+         mov r5, r0      /* load addr */
+         mov r6, #0      /* data */
+ copy_insn:
+         ldr r6, [r5], #4        /* load insn */
+         str r6, [r4], #4        /* save insn */
+         add r2, r2, #1          /* increment counter */
+         tst r2, r3
+         bne copy_insn
          bx      r0
                  .section .tail,"ax"