8605a2fcfc
This provides and, ior, xor, com, zer, set, cms when defined($1) and ior, set when !defined($1). I don't provide the other operations !defined($1) because our Modula-2 compiler hasn't used them. I wrote a Modula-2 example in https://gist.github.com/kernigh/add79662bb3c63ffb7c46d01dc8ae788 Put a dummy comment in mach/powerpc/libem/build.lua so git checkout will touch that file. Without the touch, the build system doesn't see the new *.s files.
21 lines
354 B
ArmAsm
21 lines
354 B
ArmAsm
#include "powerpc.h"
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.sect .text
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! Set complement.
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! Stack: ( a -- ~a )
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! With r3 = size of set
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.define .com
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.com:
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mr r4, sp ! r4 = pointer to set a
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rlwinm r5, r3, 30, 2, 31
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mtspr ctr, r5 ! ctr = r3 / 4
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1:
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lwz r6, 0(r4)
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nor r6, r6, r6 ! complement of word
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stw r6, 0(r4)
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addi r4, r4, 4
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bc DNZ, 0, 1b ! loop ctr times
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bclr ALWAYS, 0, 0
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