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: / proc / 3206095 / root / opt / golang / 1.22.0 / src / internal / abi /
Filename : abi_generic.go
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// Copyright 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

//go:build !goexperiment.regabiargs && !amd64 && !arm64 && !ppc64 && !ppc64le && !riscv64

package abi

const (
	// ABI-related constants.
	//
	// In the generic case, these are all zero
	// which lets them gracefully degrade to ABI0.

	// IntArgRegs is the number of registers dedicated
	// to passing integer argument values. Result registers are identical
	// to argument registers, so this number is used for those too.
	IntArgRegs = 0

	// FloatArgRegs is the number of registers dedicated
	// to passing floating-point argument values. Result registers are
	// identical to argument registers, so this number is used for
	// those too.
	FloatArgRegs = 0

	// EffectiveFloatRegSize describes the width of floating point
	// registers on the current platform from the ABI's perspective.
	//
	// Since Go only supports 32-bit and 64-bit floating point primitives,
	// this number should be either 0, 4, or 8. 0 indicates no floating
	// point registers for the ABI or that floating point values will be
	// passed via the softfloat ABI.
	//
	// For platforms that support larger floating point register widths,
	// such as x87's 80-bit "registers" (not that we support x87 currently),
	// use 8.
	EffectiveFloatRegSize = 0
)