Description:

Advance the stack pointer by N bytes.  The new data place on the stack is arbitrary and needs to be initialized before use.

Data (1 byte):

unsigned byte: Single byte value desgnating how far to advance the stack pointer.  The maximum is therefore 255 bytes.

Pseudo Code:

byteVal = program[pc + 1]
sp = sp + byteVal
pc = pc + 2

Flags Affected:

D	H	C	Z	N

Possible Errors:

tvmStackOverflow

-

There is not enough room on the stack to push the bytes.

Example:

pushn 3

Before stack   top 1 0xAA 2 0x32 3 0x02 4 0x23 5 0x68 6 0x26   bottom

After stack   top 1 0xXX 2 0xXX 3 0xXX 4 0xAA 5 0x32 6 0x02 7 0x23 8 0x68 9 0x26   bottom