/* save to stack so we can use the register */
STP X25, X26, [SP,#-0x90] 
/* get relative address to memory available for use */
ADRP X25, (data_start & 0xFFFFFFFF000)
/* load from this memory we save something */ 
ldr x26, [X25, (data_start & 0xFFF)] 
/* nothing was written as it is 0 */
cbz x26,p1_init 
/* compared with stored value */
cmp x26,x0 
/* don't match means p2*/
b.ne p2 
p1:
ldr s0, [x0, #0xcc] /* load max */
str s0, [x0, #0xc8] /* store current */
b return
p2:
str wzr, [x0, #0xc8] /* sabo opponent */
b return
p1_init:
/* save that value */
STR x0, [X25, (data_start & 0xFFF)]
return:
/* perform original code */
ldr s0, [x0, #0xc8] 
/* uncorrupt these register by loading it */
LDP X25, X26, [SP,#-0x90] 
b code1+4 /* return to game code */
a:.word 100 /* example of defining a value */