sample.s

来自「用Java实现的编译器。把源代码编译成SPARC汇编程序」· S 代码 · 共 81 行

    ! SPARC assembly:     ! Automatically generated by ASM.SPARCGenerator

	.file 	"any_file_name"
.section	".rodata"
	.align 8
.Scanf_label:
	.asciz "%d"
	.align 8
.Printf_label1:
	.asciz "fib_rec(%d) = %d\n"
	.align 8
.Printf_label2:
	.asciz "fib_loop(%d) = %d\n"
.section	".text"
	.align 4
	.global main
	.globl main
main:
	save	%sp, -120, %sp
	add	%fp, -20, %o1
	sethi	%hi(.Scanf_label), %o2
	or	%o2, %lo(.Scanf_label), %o0
	call	scanf,0
	nop
	ld	[%fp-20], %o0
	call	fib_rec,0
	nop
	mov	%o0, %o2
	sethi	%hi(.Printf_label1), %o1
	or	%o1, %lo(.Printf_label1), %o0
	ld	[%fp-20], %o1
	call	printf,0
	nop
	ret
	restore
fib_rec:
	save	%sp, -112, %sp
	st	%i0, [%fp+68]
	ld	[%fp+68], %o0
	cmp	%o0, 1
	bne	.LL4
	nop
	mov	1, %i0
	b	.LL3
	nop
	b	.LL5
	nop
.LL4:
	ld	[%fp+68], %o0
	cmp	%o0, 0
	bne	.LL6
	nop
	mov	0, %i0
	b	.LL3
	nop
	b	.LL5
	nop
.LL6:
	ld	[%fp+68], %o0
	add	%o0, -1, %o1
	mov	%o1, %o0
	call	fib_rec,0
	nop
	mov	%o0, %l0
	ld	[%fp+68], %o0
	add	%o0, -2, %o1
	mov	%o1, %o0
	call	fib_rec,0
	nop
	mov	%o0, %o1
	add	%l0, %o1, %o0
	mov	%o0, %i0
	b	.LL3
	nop
.LL7:
.LL5:
.LL3:
	ret
	restore