Home | History | Annotate | Line # | Download | only in gdb.asm 
      1 	comment "subroutine prologue"
      2 	.macro gdbasm_enter
      3 	push fp -> push lr
      4 	addi sp,#-4 -> mv fp,sp
      5 	.endm
      6 
      7 	comment "subroutine epilogue"
      8 	.macro gdbasm_leave
      9 	addi sp,#4 -> pop lr
     10 	pop fp -> jmp lr
     11 	.endm
     12 
     13 	.macro gdbasm_call subr
     14 	bl	\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 	ldi r0,#1 -> ldi r1,#0
     27 	ldi r2,#0 -> ldi r3,#0
     28 	trap #0 -> nop
     29 	.endm
     30 
     31 	comment "crt0 startup"
     32 	.macro gdbasm_startup
     33 	seth sp, #shigh(_stack)
     34 	add3 sp, sp, #low(_stack)
     35 	ldi fp,#0
     36 	.endm
     37