asm.s

this is the PRNG routine for the prime field and large numbers for ECC or RSA algorithms. with IAR

        NAME    main
        
        PUBLIC  __iar_program_start
        
        SECTION .intvec : CODE (2)
        CODE32
        
__iar_program_start
        B       main

        PUBLIC  __iar_zero_init
        PUBLIC  __iar_copy_init
        
        EXTERN  acl_prng_lc_init
        EXTERN  acl_prng_lc_
        SECTION .text : CODE (2)
        CODE32
        
#define         seed    r0      
#define         ptr     r1      

main   
        ldr     seed,= 0x89abcdef
        BL      acl_prng_lc_init
        
#define         out    r0      
#define         len    r1     

        ldr     out,= out_buf
        ldr     len,= 0x10
        BL      acl_prng_lc_



        B main

__iar_zero_init:
__iar_copy_init:

        SECTION .data : DATA (2)
        DATA

out_buf  DS32    0x100
        
        END