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define Zce #214

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define Zce #214

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16 changes: 15 additions & 1 deletion Zc-specification/Zc.adoc
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Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
:sectnums:
:version-label: v1.0.2
:version-label: v1.0.3
:lifecycle-state: frozen

[#Zc]
Expand All @@ -11,6 +11,7 @@
[width="100%",options=header]
|====================================================================================
|Version | change
|v1.0.3 | Add definition of Zce
|v1.0.2 | Fix Architecture Review Committee feedback on instruction formats
|v1.0.1 | Post public review fixes: Add instruction formats (issue 192). Clarify that Zcmt/Zcmp are for embedded CPUs (issue 190). Fix some typos.
|v1.0.0-RC5.7| Add Zcb description and fix some typos. PUBLIC REVIEW REVISION.
Expand Down Expand Up @@ -84,6 +85,19 @@ Zcm* all reuse the encodings for _c.fld_, _c.fsd_, _c.fldsp_, _c.fsdsp_.
|cm.jalt | | | | | |yes
|====================================================================================

[#Zce]
=== Zce

The Zce extension is intended to be used for microcontrollers, and includes all relevant Zc extensions.

* Specifying Zce without F includes Zca, Zcb, Zcmp, Zcmt
* Specifying Zce with F includes Zca, Zcb, Zcmp, Zcmt _and_ Zcf

Therefore common ISA strings can be updated as follows to include the relevant Zc extensions, for example:

* RV32IMC becomes RV32IM_Zce
* RV32IMCF becomes RV32IMF_Zce

[#Zca]
=== Zca

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