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Memory Access


@       a-addr -- w        core       ``fetch''
w is the cell stored at a_addr. 
!       w a-addr --        core       ``store''
Store w into the cell at a-addr. 
+!       n a-addr --        core       ``plus-store''
Add n to the cell at a-addr. 
c@       c-addr -- c        core       ``c-fetch''
c is the char stored at c_addr. 
c!       c c-addr --        core       ``c-store''
Store c into the char at c-addr. 
2@       a-addr -- w1 w2        core       ``two-fetch''
w2 is the content of the cell stored at a-addr, w1 is the content of the next cell. 
2!       w1 w2 a-addr --        core       ``two-store''
Store w2 into the cell at c-addr and w1 into the next cell. 
f@       f-addr -- r        float       ``f-fetch''
r is the float at address f-addr. 
f!       r f-addr --        float       ``f-store''
Store r into the float at address f-addr. 
sf@       sf-addr -- r        float-ext       ``s-f-fetch''
Fetch the single-precision IEEE floating-point value r from the address sf-addr. 
sf!       r sf-addr --        float-ext       ``s-f-store''
Store r as single-precision IEEE floating-point value to the address sf-addr. 
df@       df-addr -- r        float-ext       ``d-f-fetch''
Fetch the double-precision IEEE floating-point value r from the address df-addr. 
df!       r df-addr --        float-ext       ``d-f-store''
Store r as double-precision IEEE floating-point value to the address df-addr.