staldapshpop.asm

这是一篇关于8位RISC CPU设计的文章

 ;------------------------------------
 ; Test for sta, lda, psh, pop
 ;------------------------------------

 org 0x0000
 
   ldi r1 0xaa
   sta r1 0xaaaa
   lda r0 0xaaaa
   cmp r1
   jmpa ne error

   ldi r2 0xbb
   ldi r3 0xcc
   psh r2
   psh r3
   pop r0
   cmp r3
   jmpa ne error
   pop r0
   cmp r2
   jmpa ne error

  jmpr al finish
 error:
  ldi r0 0xa2
  sta r0 0x1234

 finish:
   nop
   ldi r0 0x55
   sta r0 0xffff 
   nop
   nop