http://www.8051projects.net/ Learn to make simple microcontroller projects, pic, 8051, avr and arm projects. download 8051 projects, tutorials, libraries, sample codes. join the microcontroller discussion forum and ask doubts regarding electronics. the best source for 8051 over internet. en-gb 2009-01-07T21:40:15-08:00 contact@nospam.com hourly 1 2000-01-01T12:00+00:00 http://www.8051projects.net/forum-t742.html 2009-01-07T21:40:15-08:00 hi! i have seen the assembly code.i am not getting what the following instruction mean, jnb alarm_alarm,$; in this instuction what the $ is used for. http://www.8051projects.net/forum-t742.html 2009-01-07T21:40:15-08:00 Ajay it means same as...here: jnb alarm_alarm, here$ is a key character in keil to represent same address location.there are many ways u can use this $... in keil programming.