4.47

A.

Change into pointer version

!INCLUDE './code/bubble-sort/bubble-sort-pointer.c'

B.

Compile bubble-sort-pointer.c

gcc -S -Og bubble-sort-pointer.c

get gas file

!INCLUDE './code/bubble-sort/bubble-sort-pointer.s'

Change it into ys version

!INCLUDE './code/bubble-sort/bubble-sort-pointer.ys'

main difference is second param of function is long* end instead of
long count for convinient, long* end marks the position of last element.

using yas assemble it and yis run it, see output

../sim/misc/yas bubble-sort-pointer.ys
../sim/misc/yis bubble-sort-pointer.yo
Stopped in 117 steps at PC = 0x13.  Status 'HLT', CC Z=1 S=0 O=0
Changes to registers:
%rax:    0x0000000000000000    0x0000000000000020
%rsp:    0x0000000000000000    0x0000000000000200
%rsi:    0x0000000000000000    0x0000000000000018
%rdi:    0x0000000000000000    0x0000000000000018
%r9:    0x0000000000000000    0x0000000000000001
%r10:    0x0000000000000000    0x0000000000000002
Changes to memory:
0x0018:    0x0000000000000004    0x0000000000000001
0x0020:    0x0000000000000003    0x0000000000000002
0x0028:    0x0000000000000002    0x0000000000000003
0x0030:    0x0000000000000001    0x0000000000000004
0x01f0:    0x0000000000000000    0x0000000000000055
0x01f8:    0x0000000000000000    0x0000000000000013

initial array order is 4,3,2,1, now 1,2,3,4