55 lines
820 B
ArmAsm
55 lines
820 B
ArmAsm
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#
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! $Source$
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! $State$
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! $Revision$
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#include "powerpc.h"
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.sect .text
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! Loads a variable-sized structure onto the stack.
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!
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! r3 = size
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! r4 = address
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.define .los
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.los:
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! These sizes are handled specially.
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cmpi cr0, 0, r3, 1
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bc IFFALSE, GT, size1
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cmpi cr0, 0, r3, 2
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bc IFFALSE, GT, size2
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cmpi cr0, 0, r3, 4
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bc IFFALSE, GT, size4
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! Variable-sized structure.
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addi r3, r3, 3
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andi. r3, r3, ~3 ! align size
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add r4, r4, r3 ! adjust address to top of block
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srawi r3, r3, 2 ! convert size to the number of words
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mtspr ctr, r3
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1:
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lwzu r5, -4(r4)
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stwu r5, -4(sp)
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bc DNZ, 0, 1b ! decrement CTR, jump if non-zero
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bclr ALWAYS, 0, 0
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size1:
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lbz r3, 0(r4)
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b 1f
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size2:
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lhz r3, 0(r4)
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b 1f
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size4:
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lwz r3, 0(r4)
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1:
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stwu r3, -4(sp)
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bclr ALWAYS, 0, 0
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