20). Two cells are removed from the stack.

ERASE

( c-addr u — )

Core Ext

Erase (set to zero) a region of memory, given its starting address c-addr and

length u:

<addr> <count> ERASE

Two cells are removed from the stack.

FILL

( c-addr u b — )

Core

Fill a region of memory, at address c-addr and of length u, with the least-signif-

icant byte of the top-of-stack item. Three cells are removed from the stack.

MOVE

( addr1 addr2 u — )

Core

Copy u bytes from a source starting at addr1 to the destination starting at addr2.

After the transfer, the destination area at addr2 contains exactly what the source

area addr1 did before the transfer. If the data areas overlap, the original will not

be preserved!

CMOVE

( c-addr1 c-addr2 u — )

String

Copy u bytes from a source starting at address c-addr1 to the destination start-

ing at c-addr2. The copy proceeds character-by-character from lower to higher

addresses. Three cells are removed from the stack. “C-move”

CMOVE>

( c-addr1 c-addr2 u — )

String