What the fuck it is? The IDE seems to have a fatal bug!(Solved, it is all my fault)

la45088d1 · 发表于 2019-4-23 00:06:39

本帖最后由 la45088d1 于 2019-4-23 23:01 编辑

Several minute before, I started the simulation function of the IDE to check the code, a problem occured that made me feeled so strange. A instruction did not behaved like what it should be.
The CJNE compares two operands and branchs according to the result, if the two operand are not equal it will not do anything, otherwise the PC will jump to the specific address.
Look at this picture, the value of register A is exactly equal to 2, so the code: CJNE A,#0x02,Action_Skip shouid do nothing. Actually, simulation shows that it will branch, so I think the IDE has a fatal bug.

百里128 · 发表于 2019-4-23 17:23:07

бвгнцппп эппппеёё эз зенццоэ вад рлтсрмнт тсрнжаёыл жрлее еёжаё жрн ю

thinkabout44 · 发表于 2019-4-23 18:33:24

Lanzhou sesame cake

amo73 · 发表于 2019-4-23 21:28:16

good good study,day day up!

2545889167 · 发表于 2019-4-23 21:51:48

啥U啊？是51吗？

2545889167 · 发表于 2019-4-23 21:53:40

本帖最后由 2545889167 于 2019-4-23 21:55 编辑

话说没太看懂你不是还没执行到CJNE吗?
你的PC不是还在0x03af吗？mov 0x2f,a还没执行啊？怎么看你cjne没跳对？

xpicompany · 发表于 2019-4-23 22:08:52

本帖最后由 xpicompany 于 2019-4-23 22:12 编辑

เขียนเรื่องอะไร เราเป็นคนจีนเราไม่สามารถเขียนภาษาจีน คุณไม่สามารถเขียนภาษาจีน

huchuan987 · 发表于 2019-4-23 22:20:22

the "#" is eated by someone!!!!

la45088d1 · 发表于 2019-4-23 22:58:32

huchuan987 发表于 2019-4-23 22:20
the "#" is eated by someone!!!!

You are right, that is the very problem confuses me a lot!

mousebat04 · 发表于 2019-4-24 09:10:35

CJNE : Compare, Jump if Not Equal
if the two operand are not qual it will not do anything, otherwise the PC will jump to the specific address.

if the two operand are qual it will not do anything, otherwise the PC will jump to the specific address.

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[C51] What the fuck it is? The IDE seems to have a fatal bug!(Solved, it is all my fault)

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