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63 lines
839 B
ArmAsm
63 lines
839 B
ArmAsm
/*
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*
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* (c) 2004 Laurent Vivier <Laurent@lvivier.info>
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*
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*/
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.chip 68040
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.include "copymem.i"
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.align 4
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.global enter_kernel040
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enter_kernel040:
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link.w %fp,#0
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/* get physical start address of kernel */
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move.l 8(%fp), %a0
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/* size of image to relocate */
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move.l 12(%fp), %d0
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/* destination addresse */
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move.l 16(%fp), %a2
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/* bootenv address (EXPERIMENTAL) */
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move.l %a2, %a1
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add.l %d0, %a1
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sub.l #4096, %a1
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move.l #0x80000000, %d4
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/* entry point */
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move.l 20(%fp), %a3
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/* disable MMU */
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moveq.l #0, %d1
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movec %d1, %tc
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movec %d1, %itt0
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movec %d1, %dtt0
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movec %d1, %itt1
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movec %d1, %dtt1
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/* copy kernel to destination address */
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copymem %a0, %a2, %d0
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/* jump into kernel */
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jmp %a3@
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/* never comes here... I hope */
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unlk %fp
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rts
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.global end_enter_kernel040
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end_enter_kernel040:
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