swap.s

来自「SH 的 Diab C源码。包括启动程序crt0.s」· S 代码 · 共 25 行

# swap.s: assembly "swap" function for Bubble Sort example: SH target.
#
# Equivalent C code:
#
#       void swap (int array[])
#       {
#           int temp = array[0];
#           array[0] = array[1];
#           array[1] = temp;
#       }

        
        .name           "swap.s"
        .section        .text2,,c   # Locate the code in the ".text2" section.
        .align          1
        .export         _swap

_swap:
        mov.l           @(0,r4),r0  # r0 = array[0]
        mov.l           @(4,r4),r1  # r1 = array[1]
        mov.l           r1,@(0,r4)  # array[0] = r1 = array[1]
        rts
        mov.l           r0,@(4,r4)  # array[1] = r0 = array[0]