_receive.asm

来自「dsp5000」· 汇编 代码 · 共 45 行

           .def   _receive
TCR1       .set   32h          
            .text
            .mmregs
_receive: 
          RSBX      CPL
          LD        #0,DP 
                                                                
          SSBX      SXM
          SSBX      INTM
         ; stm       #0ffefh,IFR  
         ; STM       #0010h,TCR
         ; stm       40h,AR2 
          ;mvdk      *AR2,1000h
          ;stm       42h,AR2
          ;mvkd      1000h,*AR2
                                     ;;;;;;
          stm       21h,AR1           
          mvdk      *AR1,1001h           
         ; stm       23h,AR1           
         ; mvkd      1001h,*AR1 
          
          ;ld      *AR1,A  
          ;nop
          ;nop
          ;and     #0fffch,A  
          ;nop
          ;nop
         ; ld      A,-2,B  
         ; nop
         ; ld      *AR2,A
         ; nop 
         ; nop
          ;or      A,14,B
          ;nop
          
          ;stm     43h,AR3
          ;stl     B,*AR3
          
         ; stm     #010H,IMR  
          ;STM #0010h,TCR
          ;stm #0010h,TCR1
          rsbx      INTM
          rete