米6体育平台手机版

ZHCU032K December 2004 – August 2022 MSP430AFE221 , MSP430AFE222 , MSP430AFE223 , MSP430AFE231 , MSP430AFE232 , MSP430AFE233 , MSP430AFE251 , MSP430AFE252 , MSP430AFE253 , MSP430F2001 , MSP430F2002 , MSP430F2003 , MSP430F2011 , MSP430F2012 , MSP430F2013 , MSP430F2101 , MSP430F2111 , MSP430F2112 , MSP430F2121 , MSP430F2122 , MSP430F2131 , MSP430F2132 , MSP430F2132-EP , MSP430F2232 , MSP430F2234 , MSP430F2252 , MSP430F2252-Q1 , MSP430F2254 , MSP430F2272 , MSP430F2272-Q1 , MSP430F2274 , MSP430F2274-EP , MSP430F233 , MSP430F2330 , MSP430F235 , MSP430F2350 , MSP430F2370 , MSP430F2410 , MSP430F2416 , MSP430F2417 , MSP430F2418 , MSP430F2419 , MSP430F247 , MSP430F2471 , MSP430F248 , MSP430F2481 , MSP430F249 , MSP430F2491 , MSP430F2616 , MSP430F2617 , MSP430F2618 , MSP430F2619 , MSP430G2001 , MSP430G2101 , MSP430G2102 , MSP430G2111 , MSP430G2112 , MSP430G2121 , MSP430G2131 , MSP430G2132 , MSP430G2152 , MSP430G2153 , MSP430G2201 , MSP430G2201-Q1 , MSP430G2202 , MSP430G2203 , MSP430G2210 , MSP430G2211 , MSP430G2212 , MSP430G2213 , MSP430G2221 , MSP430G2230 , MSP430G2231 , MSP430G2231-Q1 , MSP430G2232 , MSP430G2233 , MSP430G2252 , MSP430G2253 , MSP430G2302 , MSP430G2303 , MSP430G2312 , MSP430G2313 , MSP430G2332 , MSP430G2333 , MSP430G2352 , MSP430G2353 , MSP430G2402 , MSP430G2403 , MSP430G2412 , MSP430G2413 , MSP430G2432 , MSP430G2433 , MSP430G2444 , MSP430G2452 , MSP430G2453 , MSP430G2513 , MSP430G2533 , MSP430G2544 , MSP430G2553 , MSP430G2744 , MSP430G2755 , MSP430G2855 , MSP430G2955 , MSP430TCH5E

11.2.3 软件示例

下面是所有乘法器模式的例子。当使用标准定义文件上的标签时，所有 8x8 模式都使用寄存器的绝对地址，因为汇编器将不会允许 B 访问字寄存器。

在软件中没有必要进行符号扩展。在有符号运行期间用一个字节指令访问乘法器将自动导致一个乘法器模块内的字节的符号扩展。

; 16x16 Unsigned Multiply
   MOV     #01234h,&MPY   ; Load first operand
   MOV     #05678h,&OP2   ; Load second operand
;  ...                    ; Process results
; 8x8 Unsigned Multiply.Absolute addressing.
   MOV.B   #012h,&0130h   ; Load first operand
   MOV.B   #034h,&0138h   ; Load 2nd operand
;  ...                    ; Process results
; 16x16 Signed Multiply
   MOV     #01234h,&MPYS  ; Load first operand
   MOV     #05678h,&OP2   ; Load 2nd operand
;  ...                    ; Process results
; 8x8 Signed Multiply.Absolute addressing.
   MOV.B   #012h,&0132h   ; Load first operand
   MOV.B   #034h,&0138h   ; Load 2nd operand
;  ...                    ; Process results
; 16x16 Unsigned Multiply Accumulate
   MOV     #01234h,&MAC   ; Load first operand
   MOV     #05678h,&OP2   ; Load 2nd operand
;  ...                    ; Process results
; 8x8 Unsigned Multiply Accumulate.Absolute addressing
   MOV.B   #012h,&0134h   ; Load first operand
   MOV.B   #034h,&0138h   ; Load 2nd operand
;  ...                    ; Process results
; 16x16 Signed Multiply Accumulate
   MOV     #01234h,&MACS  ; Load first operand
   MOV     #05678h,&OP2   ; Load 2nd operand
;  ...                    ; Process results
; 8x8 Signed Multiply Accumulate.Absolute addressing
   MOV.B   #012h,&0136h   ; Load first operand
   MOV.B   #034h,R5       ; Temp. location for 2nd operand
   MOV     R5,&OP2        ; Load 2nd operand
;  ...                    ; Process results