Chapter 22. Intel i860 Dependent Features

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For example, the pseudo instruction

ld.b addr_exp(%rx),%rn

will be expanded into:

orh addr_exp@ha,%rx,%r31

ld.l addr_exp@l(%r31),%rn

The analogous expansions apply to

ld.x, st.x, fld.x, pfld.x, fst.x

, and

pst.x

as well.

Signed large immediate with add/subtract:

If any of the arithmetic operations

adds, addu, subs, subu

are used with an immediate

larger than 16 bits (signed), then they will be expanded. For instance, the pseudo instruction

adds

large_imm,%rx,%rn

expands to:

orh large_imm@h,%r0,%r31

or large_imm@l,%r31,%r31

adds %r31,%rx,%rn

Unsigned large immediate with logical operations:

Logical operations (

or, andnot, or, xor

) also result in expansions. The pseudo instruction

or

large_imm,%rx,%rn

results in:

orh large_imm@h,%rx,%r31

or large_imm@l,%r31,%rn

Similarly for the others, except for

and

which expands to:

andnot ( 1   large_imm)@h,%rx,%r31

andnot ( 1   large_imm)@l,%r31,%rn