1	comment "subroutine prologue"
2	.macro gdbasm_enter
3	push	%rbp
4	mov	%rsp,%rbp
5	.endm
6
7	comment "subroutine epilogue"
8	.macro gdbasm_leave
9	pop	%rbp
10	ret
11	.endm
12
13	.macro gdbasm_call subr
14	call	\subr
15	.endm
16
17	.macro gdbasm_several_nops
18	nop
19	nop
20	nop
21	nop
22	.endm
23
24	comment "exit (0)"
25	.macro gdbasm_exit0
26	hlt
27	.endm
28
29	comment "crt0 startup"
30	.macro gdbasm_startup
31	xor	%rbp, %rbp
32	.endm
33
34	comment "Declare a data variable"
35	.macro gdbasm_datavar name value
36	.data
37\name:
38	.long	\value
39	.endm
40