Difference between revisions of "Instruction Set/narrow"
From Mill Computing Wiki
m (Protected "Instruction Set/narrow": generated ([Edit=<protect-level-bot>] (indefinite) [Move=<protect-level-bot>] (indefinite))) | |
(No difference) | |
Latest revision as of 01:31, 3 January 2015
realizing exu stream exu block compute phase operation in the logical value domain
aliases: narrows narrowu
native on: all
Half the width of an integer value.
This is not a Speculable operation. The reason for this is the impossibility to fit all of the NaR payload into values smaller than 32bit. Nominally this would only require the narrowing of 32bit values to be not speculable, but for simplicity reasons in hardware and compiler this is not so. If narrowing should prove a big bottleneck this can be revisited.
operands: like Narrow [xx:½x]
| Core | In Slots | Latencies |
|---|---|---|
| Tin | E0 | 1 |
| Copper | E0 E1 | 1 |
| Silver | E0 E1 E2 E3 | 1 |
| Gold | E0 E1 E2 E3 E4 E5 E6 E7 | 1 |
| Decimal8 | E0 E1 E2 E3 | 1 |
| Decimal16 | E0 E1 E2 E3 | 1 |
operands: like Narrowv [XX:½x]
| Core | In Slots | Latencies |
|---|---|---|
| Tin | E0 | 1 |
| Copper | E0 E1 | 1 |
| Silver | E0 E1 E2 E3 | 1 |
| Gold | E0 E1 E2 E3 E4 E5 E6 E7 | 1 |
| Decimal8 | E0 E1 E2 E3 | 1 |
| Decimal16 | E0 E1 E2 E3 | 1 |
Instruction Set, alphabetical, Instruction Set by Category, Instruction Set, sortable, filterable
