54 lines
1.1 KiB
Go
54 lines
1.1 KiB
Go
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//go:build ignore
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// +build ignore
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package main
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import (
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. "github.com/mmcloughlin/avo/build"
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. "github.com/mmcloughlin/avo/operand"
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)
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// Float32 generates a function which indexes into an array of single-precision
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// integer float values.
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func Float32() {
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f32 := GLOBL("f32", RODATA|NOPTR)
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for i := 0; i < 10; i++ {
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DATA(4*i, F32(i))
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}
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TEXT("Float32", NOSPLIT, "func(i int) float32")
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Doc("Float32 indexes into an array of single-precision integral floats.")
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i := Load(Param("i"), GP64())
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ptr := Mem{Base: GP64()}
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LEAQ(f32, ptr.Base)
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x := XMM()
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MOVSS(ptr.Idx(i, 4), x)
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Store(x, ReturnIndex(0))
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RET()
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}
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// Float64 generates a function which indexes into an array of double-precision
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// integer float values.
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func Float64() {
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f64 := GLOBL("f64", RODATA|NOPTR)
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for i := 0; i < 10; i++ {
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DATA(8*i, F64(i))
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}
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TEXT("Float64", NOSPLIT, "func(i int) float64")
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Doc("Float64 indexes into an array of double-precision integral floats.")
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i := Load(Param("i"), GP64())
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ptr := Mem{Base: GP64()}
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LEAQ(f64, ptr.Base)
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x := XMM()
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MOVSD(ptr.Idx(i, 8), x)
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Store(x, ReturnIndex(0))
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RET()
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}
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func main() {
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Float32()
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Float64()
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Generate()
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}
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