27 lines
782 B
ArmAsm
27 lines
782 B
ArmAsm
# $Header$
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# revised version by CHL
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.globl .strlb
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# Store the value that is on the stack in fp.
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# Compute ap.
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.strlb:
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movl (sp)+,r3
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movl (sp)+,fp
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pushl r3
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movl $20,ap # Compute argumentbase from local base.
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# Distance is 5 longwords + the number of
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# registers saved.
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movl 4(fp),r3 # mask for saved registers
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movl $16,r2 # position of first bit to test
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L4:
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subl3 r2,$28,r1 # remaining size of mask
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ffs r2,r1,r3,r2 # find first bit set in mask
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beql L5 # no more bits set
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addl2 $4,ap # for each saved register
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incl r2
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jbr L4
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L5:
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extzv $14,$2,6(fp),r3 # Now find out about the stack alignment
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# between fp and ap
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addl2 r3,ap # add alignment
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addl2 fp,ap
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rsb
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