//go:build zos

package unix

import (
	"bytes"
	"fmt"
	"unsafe"
)

//go:noescape
func bpxcall(plist []unsafe.Pointer, bpx_offset int64)

//go:noescape
func A2e([]byte)

//go:noescape
func E2a([]byte)

const (
	BPX4STA = 192  // stat
	BPX4FST = 104  // fstat
	BPX4LST = 132  // lstat
	BPX4OPN = 156  // open
	BPX4CLO = 72   // close
	BPX4CHR = 500  // chattr

	BYTE  $0xE9                 // clobbers 0,1,14,15
	MOVD  R8, R15               // restore 15
	JMP   R7                    // return via saved return address

//   func A2e(arr [] byte)
//   code page conversion from  819 to 1047
TEXT ·A2e(SB), NOSPLIT|NOFRAME, $0
	MOVD arg_base+0(FP), R2                        // pointer to arry of characters
	MOVD arg_len+8(FP), R3                         // count
	XOR  R0, R0
	XOR  R1, R1

	}
	return 0, nil
}
func ZosStringToEbcdicBytes(str string, nullterm bool) (ebcdicBytes []byte) {
	if nullterm {
		ebcdicBytes = []byte(str + "\x00")
	} else {
		ebcdicBytes = []byte(str)
	}
	A2e(ebcdicBytes)
	return
}
func ZosEbcdicBytesToString(b []byte, trimRight bool) (str string) {
	res := make([]byte, len(b))
	copy(res, b)
	E2a(res)
	if trimRight {