Module description

fwt -- Fixed Width Types module

The fwt module implements types that have a fixed bit width. They are mainly used in interfaces. The words are defined for 32- and 64-bit forth engines.

Fixed width constants

Fixed width structure fields

wfield: ( structure-sys "<spaces>name" -- structure-sys ; addr1 -- addr2 )

Create a structure field for a word, 2 bytes, not aligned, return the field address

lfield: ( structure-sys "<spaces>name" -- structure-sys ; addr1 -- addr2 )

Create a structure field for a long word, 4 bytes, not aligned, return the field address

wfields: ( structure-sys n "<spaces>name" -- structure-sys ; addr1 -- addr2 )

Create a structure field for n words, not aligned, return the field address

lfields: ( structure-sys n "<spaces>name" -- structure-sys ; addr1 -- addr2 )

Create a structure field for n long words, not aligned, return the field address

Fixed width store and fetch

w@ ( w-addr -- u )

Fetch a word, 16 bit, zero extend

<w@ ( w-addr -- n )

Fetch a word, 16 bit, sign extend

w! ( n w-addr -- )

Store a word, 16 bit

w, ( x -- )

Store 16 bits of data in the data storage

u>l ( u -- l )

Convert a unsigned number to 32 bit number

u>l ( u -- l )

Convert a unsigned number to 32 bit number

l@ ( l-addr -- n )

Fetch a long word, 32 bit, zero extend

<l@ ( l-addr -- n )

Fetch a long word, 32 bit, sign extend

l! ( n l-addr -- )

Store a long word, 32 bit

l+! ( l l-addr -- )

Add l to l-addr

l+! ( l l-addr -- )

Add l to l-addr

l, ( x -- )

Store 32 bits of data in the data storage

l, ( x -- )

Store 32 bits of data in the data storage

llroll ( l1 u2 -- l3 )

Rotate l1 u2 bits to the left

llroll ( l1 u2 -- l3 )

Rotate l1 u2 bits to the left

lrroll ( l1 u2 -- l3 )

Rotate l1 u2 bits to the right

lrroll ( l1 u2 -- l3 )

Rotate l1 u2 bits to the left

l@! ( l1 l-addr -- l2 )

Fetch l2 from l-addr and then store l1 at l-addr

l@! ( l1 l-addr -- l2 )

Fetch l2 from l-addr and then store l1 at l-addr

Generated by fsdocgen 0.1.0