// Copyright (c) 2026 Petr Balvín <opensource@petrbalvin.org> (https://petrbalvin.org)
// SPDX-License-Identifier: BSD-3-Clause

//go:build linux && loong64

package debug

import "fmt"

func printRegs(regs *Regs, codeBase, funcOff uint64) {
	fmt.Printf("  PC  = %#016x  (func+%#x)\n", regs.R31, regs.R31-codeBase-funcOff)
	fmt.Printf("  SP  = %#016x  FP  = %#016x\n", regs.R3, regs.R21)
	fmt.Printf("  RA  = %#016x\n", regs.R1)
	fmt.Printf("  A0  = %#016x  A1  = %#016x\n", regs.R4, regs.R5)
	fmt.Printf("  A2  = %#016x  A3  = %#016x\n", regs.R6, regs.R7)
	fmt.Printf("  A4  = %#016x  A5  = %#016x\n", regs.R8, regs.R9)
	fmt.Printf("  A6  = %#016x  A7  = %#016x\n", regs.R10, regs.R11)
	fmt.Printf("  T0  = %#016x  T1  = %#016x\n", regs.R12, regs.R13)
	fmt.Printf("  T2  = %#016x  T3  = %#016x\n", regs.R14, regs.R15)
	fmt.Printf("  T4  = %#016x  T5  = %#016x\n", regs.R16, regs.R17)
	fmt.Printf("  T6  = %#016x  T7  = %#016x\n", regs.R18, regs.R19)
	fmt.Printf("  T8  = %#016x\n", regs.R20)
	fmt.Printf("  S0  = %#016x  S1  = %#016x\n", regs.R22, regs.R23)
	fmt.Printf("  S2  = %#016x  S3  = %#016x\n", regs.R24, regs.R25)
	fmt.Printf("  S4  = %#016x  S5  = %#016x\n", regs.R26, regs.R27)
	fmt.Printf("  S6  = %#016x  S7  = %#016x\n", regs.R28, regs.R29)
	fmt.Printf("  S8  = %#016x\n", regs.R30)
}

func printVectorRegs(v *VectorRegs) {
	fmt.Println("\n  FP registers (F0-F31):")
	for i := 0; i < 32; i += 2 {
		fmt.Printf("  F%-2d  = %#018x  F%-2d  = %#018x\n", i, v.F[i], i+1, v.F[i+1])
	}
	fmt.Printf("  FCC  = %#016x  FCSR = %#x\n", v.FCC, v.FCSR)
}

// archReturnAddr reads the return address from RA (loong64 convention).
func archReturnAddr(s *Session, regs *Regs) (uint64, error) {
	return regs.R1, nil
}

// archSPLabel returns the SP register name for display.
func archSPLabel() string { return "SP" }