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

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-version 1.1.1.1, 2008/06/03 10:38:40
+version 1.1.1.1.2.1, 2008/08/13 17:12:20
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 Line 141
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          lsl     r3, #7      /* r3 = 0x2000 (8K) */
          mov     r2, #3
          lsl     r2, #24     /* r2 = 0x3000000 */
-         lsl     r1, r2, #2  /* r1 = 0x8000000 */
+         lsl     r1, r3, #14 /* r1 = 0x8000000 */
  copy_loop:
          ldmia   r1!, {r0}
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  ENTRY(start_kernel)
          bx      r0
-                 .section .tail,"ax"
+ /*
+  * Put one character to Visual Boy Advance (VBA) emulator console.
+  *
+  * Important:
+  * This BIOS call is not supported by actual GBA BIOS. So, you must
+  * disable this function when you run it on actual GBA H/W.
+  * Otherwise, it will hang.
+  */
+ putbuf:
+         .long   0
+ ENTRY(putchar)
+ #if defined(DEBUG) && defined(CONFIG_DIAG_VBA)
+         ldr     r1, =putbuf
+         str     r0, [r1]
+         mov     r0, r1
+         swi     $0xff0000
+ #endif
+         mov     pc, lr
+ /*
+  * Panic handler
+  */
+ ENTRY(machine_panic)
+ stop:
+         b       stop
+         .section .tail,"ax"
  dummy:
          .byte   0xff