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22 lines
445 B
Plaintext
22 lines
445 B
Plaintext
; RUN: llvm-as < %s | llc -march=x86
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implementation
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declare int %llvm.readport (ushort)
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declare void %llvm.writeport (int, ushort)
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int %in(ushort %p) {
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%i1 = call int %llvm.readport (ushort 255)
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%i2 = call int %llvm.readport (ushort %p)
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%r = add int %i1, %i2
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ret int %r
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}
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void %out(ushort %p) {
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call void(int, ushort)* %llvm.writeport (int 1, ushort 255)
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call void(int, ushort)* %llvm.writeport (int 4, ushort %p)
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ret void
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}
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