icicle/start.s

24 lines
334 B
ArmAsm
Raw Normal View History

2017-12-15 20:08:55 +00:00
.extern bss_start
.extern bss_end
.global start
start:
la t0, bss_start
la t1, bss_end
beq t0, t1, clear_bss_done
clear_bss:
sw x0, 0(t0)
addi t0, t0, 4
bne t0, t1, clear_bss
clear_bss_done:
la sp, stack_top
call main
j .
.section bss
.local stack_bottom
.comm stack_bottom, 256, 16
stack_top: