We are running a survey to help us improve the experience for all of our members. If you see the survey appear, please take the time to tell us about your experience if you can.
hello, If i enter the word 'register' it appears in blue, so that means it is a 'reserved keyword'.I wonder what the purpose is of this keyword 'register' and for what i can use it... Can anybody help me? (I'm a newbie in Keil C51 compiler.) thanks and greetz
Now, what is it that Erik keeps saying about testing...? ;-) Testing, Yes absolutely. Trying is OK. Trying the above would never have any effect on whether the end product would work or not. If the reason for using "register" is a time critical function, C should not have been used anyhow. Erik
"If the reason for using "register" is a time critical function, C should not have been used anyhow." What other possible reason could there be? Quoting from the previously quoted section of the standard: "A declaration of an identifier for an object with storage-class specifier register suggests that acces to the object be as fast as possible." Stefan
"If the reason for using "register" is a time critical function, C should not have been used anyhow." What other possible reason could there be? Here we are in PC land again. for a PC application you might want something as fast as possible without the programmer making any effort - typical PC programmer attitude. For a microprocessor application the above doesn't cut it, in that case it is as fast as possible with the programmer making an effort - which should be the attitude of every microcontroller programmer - and that is impossible in C. Please note: I recommend that all non time critical code be written in C, I am not an assembler fanatic; however when I see microcontroller programmers try to avoid the dreadful assembler I cringe. Erik
hi, seems to be a popular topic that 'register' thing,however, thanks for the info greetzzz, peter