It's not clear to me exactly what you're asking for - you say that you have
to write a program in assembler, then say the program is in Pascal. Is it
that you have to translate a Pascal program into assembler? (And is this
coursework suggesting that you are supposed to be doing this on your own?)
The Pascal compiler, if you use the /MACHINE_CODE and /LIST qualifiers, will
show you what the assembly code looks like for your Pascal code. However,
this is not something you can turn around and feed to the MACRO assembler.
Please also note that "VMS" is the name of the operating system (more properly,
OpenVMS), not the name of the assembler.