STARTUP.A51 LJMP $C_START problem

In STARTUP.A51 MOV SP,#?STACK-1 LJMP ?C_START It compile to MAIN.HEX @0x0400 MOV SP(0x81),#0x20 LJMP C:0441 LJMP main(C:0100) @0x0440 SJMP C:03D2 Why it jump into the middle...
STARTUP.A51 LJMP $C_START problem

In STARTUP.A51 MOV SP,#?STACK-1 LJMP ?C_START It compile to MAIN.HEX @0x0400 MOV SP(0x81),#0x20 LJMP C:0441 LJMP main(C:0100) @0x0440 SJMP C:03D2 Why it jump into the middle...
?c_start error

I have tried to write a simple embedded c program in keil for that purpose i added Startup.a51 file when i tried to compile it it had shown the warnigs Build target 'Target 1' linking... *** WARNING...
?c_start error

I have tried to write a simple embedded c program in keil for that purpose i added Startup.a51 file when i tried to compile it it had shown the warnigs Build target 'Target 1' linking... *** WARNING...
cannot link...says "?C_START" unresolved

I am using c51 compiler and uv2. I wrote a small program for 89c51ed2. I included startup.a51 in the project but unable to build the project. It gives me a warning saying "unresolved external symbol C_START...