[其它应用] 有没有更详细的关于功能方面的说明

[复制链接]
143|9
 楼主 | 2018-7-10 18:40 | 显示全部楼层 |阅读模式
四位机的扩展指令
| 2018-7-10 18:42 | 显示全部楼层
什么意思?不是很明白你说的什么,能再解释一下这个现象吗
 楼主 | 2018-7-10 18:44 | 显示全部楼层


或者说和51的差不多什么的
| 2018-7-10 18:48 | 显示全部楼层
4bit mcu的扩展指令你可以参考IDE66的帮助文件
| 2018-7-10 18:49 | 显示全部楼层

对,里面的描述比较详细
| 2018-7-10 18:52 | 显示全部楼层

arithmetic instruction:
INC Mx                 /*Increase Mx by 1,if Mx>0x7f, one additional RAM is used as temporary RAM*/
DEC Mx                 /*Decrease Mx by 1,if Mx>0x7f, one additional RAM is used as temporary RAM*/
RL Mx, shift         /*Left shift Mx */
RR Mx, shift         /*Right shift Mx */
RLC Mx, shift         /*Left shift with carry */
INV(CPL) Mx         /* Invert Mx, if Mx>0x7f, one additional RAM is used as temporary RAM*/
| 2018-7-10 18:55 | 显示全部楼层
compare/jump instruction:
CJNE Mx1, Mx2, addr         /*Compare, and if Mx1 is not equal to Mx2, jump to addr*/
CJE Mx1, Mx2, addr                 /*Compare, and if Mx1 is equal to Mx2, jump to addr*/
CJLE Mx1, Mx2, addr                 /*Compare, and if Mx1 is less than or equal to Mx2, jump to addr*/
CJGE Mx1, Mx2, addr         /*Compare, and if Mx1 is greater than or equal to Mx2, jump to addr*/
CJL Mx1, Mx2, addr         /*Compare, and if Mx1 is less than Mx2, jump to addr*/
CJG Mx1, Mx2, addr         /*Compare, and if Mx1 is greater than Mx2, jump addr*/
DJNZ Mx, addr                 /*Decrease Mx by 1, and jump to addr if Mx is not equal to 0,if Mx>0x7f, one additional RAM is used as temporary RAM*/
DJZ Mx, addr                 /*Decrease Mx by 1, and jump to addr if Mx is equal to 0,if Mx>0x7f, one additional RAM is used as temporary RAM*/
| 2018-7-10 18:57 | 显示全部楼层

bit arithmetic instruction:
SETB Mx, bit                 /* Set Mx:bit ,if Mx>0x7f, one additional RAM is used as temporary RAM*/
CLRB Mx, bit                 /* Clear Mx:bit ,if Mx>0x7f, one additional RAM is used as temporary RAM*/
JB Mx, bit, addr                 /* Test and jump, if Mx:bit is 1, then jump to addr*/
JNB Mx, bit, addr         /* Test and jump, if Mx:bit is 0, then jump to addr*/
| 2018-7-10 18:59 | 显示全部楼层

other instruction:
LDR Mx, addr                 /*load the address into the RAM, Mx <- addr[15:12], Mx-1 <- addr[11:8],Mx-2 <- addr[7:4], Mx-3 <- addr[3:0], addr is 16-bit width, if Mx > 0x7F, one additional RAM is used as temporary RAM*/
 楼主 | 2018-7-10 19:02 | 显示全部楼层
结贴了,多谢大家讨论这么多哈,呵呵
扫描二维码,随时随地手机跟帖
您需要登录后才可以回帖 登录 | 注册

本版积分规则

快速回复

您需要登录后才可以回帖
登录 | 注册
高级模式
我要创建版块 申请成为版主

论坛热帖

快速回复 返回顶部 返回列表