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woai3c / nand2tetris

计算机系统要素-从零开始构建现代计算机
MIT License
2.61k stars 436 forks source link

CPU中PC的load信号问题 #18

Closed BackMountainDevil closed 2 years ago

BackMountainDevil commented 2 years ago

https://github.com/woai3c/nand2tetris/blob/079e9e38628bf2d4a318740d52a8cd66cb3b68ed/05/CPU.hdl#L71

你在代码中判断JGT只判断了指令最高位（是否是C指令）和指令最低位，可是JGT不还得判断其它俩个J信号是不是零吗

BackMountainDevil commented 2 years ago

不需要额外判断