Description:

Call a subroutine by pushing the current program counter onto the VM stack and assigning a new address to the program counter.

Data (2 bytes):

short: 2-byte value for new PC

Pseudo Code:

stack[sp]=pch
stack[sp+1]=pcl
pch=program[pc+1]; pcl=program[pc+2]
sp=sp+2

Flags Affected:

D	H	C	Z	N

Possible Errors:

tvmStackOverflow	-	There is no more room on the stack to push the PC.
aVMExitAddressRange	-	The address specified is invalid.