24 lines
484 B
ArmAsm
24 lines
484 B
ArmAsm
.define .lpb
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.sect .text
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.sect .rom
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.sect .data
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.sect .bss
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.extern .lpb
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.sect .text
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.lpb:
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! convert local to argument base
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! should not destroy register d2 (used by lxa/lxl)
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move.l (sp)+,a1 ! return address
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move.l (sp)+,a0 ! local base
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move.w 4(a0),d0 ! register save word
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move.w d0,d1
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and.l #7,d0 ! #data registers
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and.l #070,d1
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asr.l #3,d1 ! #address registers
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add.w d1,d0
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asl.l #2,d0 ! 4 * #registers
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add.w #10,d0 ! reg. save word, lb, pc
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add.l d0,a0
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jmp (a1)
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