deploy.

App/wwwroot/HiAPI-docsite/api/Hi.NcParsers.InspectionSyntaxs.ProgramXyzBackfillSyntax.html

@@ -6,7 +6,7 @@
       <meta name="viewport" content="width=device-width, initial-scale=1.0">
       <meta name="title" content="Class ProgramXyzBackfillSyntax | HiAPI-C# 2025 ">
       
-      <meta name="description" content="Debug / observability back-fill: writes  onto blocks that did not have it written by upstream logic syntaxes (e.g.  block, chain-change blocks that only updated MC via a rotary-only path), only when the effective program position has changed from the last block that stored a .  Skips the block entirely when either of these holds: The block already has    written — e.g. by ,   ,   ,   ,   , or   .The effective value equals the last stored value (modal-only   block such as pure F / S / M / plane-select — no program motion).   Only back-fills the root block;  items are intentionally skipped (they are managed by  and per-cycle syntaxes that already write the right per-item ProgramXyz).   Placement: end of , after . Runs purely as a bookkeeping pass — no other syntax / semantic in the default pipeline reads the additional back-fill values it emits, so the runtime output ( stream) is unchanged whether this syntax is present or not. The only observable effect is additional ProgramXyz entries in the cached syntax-pieces dump, which makes block-to-block debugging and diffing easier.">
+      <meta name="description" content="Debug / observability back-fill: writes  onto blocks that did not have it written by upstream logic syntaxes (e.g.  block, chain-change blocks that only updated MC via a rotary-only path), only when the effective program position has changed from the previous block&#39;s effective value (which, blocks being skipped only on equality, is also the last stored ).  Skips the block entirely when either of these holds: The block already has    written — e.g. by ,   ,   ,   ,   , or   .The effective value equals the predecessor&#39;s effective value   (modal-only block such as pure F / S / M / plane-select — no   program motion).   Only back-fills the root block;  items are intentionally skipped (they are managed by  and per-cycle syntaxes that already write the right per-item ProgramXyz).   Placement: end of , after . Runs purely as a bookkeeping pass — no other syntax / semantic in the default pipeline reads the additional back-fill values it emits, so the runtime output ( stream) is unchanged whether this syntax is present or not. The only observable effect is additional ProgramXyz entries in the cached syntax-pieces dump, which makes block-to-block debugging and diffing easier.">
       <link rel="icon" href="../img/HiAPI.favicon.ico">
       <link rel="stylesheet" href="../public/docfx.min.css">
       <link rel="stylesheet" href="../public/main.css">
@@ -102,7 +102,8 @@ Class ProgramXyzBackfillSyntax
 written by upstream logic syntaxes (e.g. <a class="xref" href="Hi.NcParsers.Initializers.HomeMcInitializer.html">HomeMcInitializer</a>
 block, chain-change blocks that only updated MC via a rotary-only path),
 <b>only when</b> the effective program position has changed from the
-last block that stored a <a class="xref" href="Hi.NcParsers.Keywords.IProgramXyzDef.html#Hi_NcParsers_Keywords_IProgramXyzDef_ProgramXyz">ProgramXyz</a>.</p>
+previous block's effective value (which, blocks being skipped only on
+equality, is also the last stored <a class="xref" href="Hi.NcParsers.Keywords.IProgramXyzDef.html#Hi_NcParsers_Keywords_IProgramXyzDef_ProgramXyz">ProgramXyz</a>).</p>
 <p>
 Skips the block entirely when either of these holds:
 <ul><li>The block already has <a class="xref" href="Hi.NcParsers.Keywords.IProgramXyzDef.html#Hi_NcParsers_Keywords_IProgramXyzDef_ProgramXyz">ProgramXyz</a>
@@ -111,8 +112,9 @@ Skips the block entirely when either of these holds:
   <a class="xref" href="Hi.NcParsers.LogicSyntaxs.MachineCoordSelectSyntax.html">MachineCoordSelectSyntax</a>,
   <a class="xref" href="Hi.NcParsers.LogicSyntaxs.ReferenceReturnSyntax.html">ReferenceReturnSyntax</a>,
   <a class="xref" href="Hi.NcParsers.LogicSyntaxs.McAbcXyzFallbackSyntax.html">McAbcXyzFallbackSyntax</a>, or
-  <a class="xref" href="Hi.NcParsers.PostLogicSyntaxs.RadiusCompensationSyntax.html">RadiusCompensationSyntax</a>.</li><li>The effective value equals the last stored value (modal-only
-  block such as pure F / S / M / plane-select — no program motion).</li></ul>
+  <a class="xref" href="Hi.NcParsers.PostLogicSyntaxs.RadiusCompensationSyntax.html">RadiusCompensationSyntax</a>.</li><li>The effective value equals the predecessor's effective value
+  (modal-only block such as pure F / S / M / plane-select — no
+  program motion).</li></ul>
 
 <p>
 Only back-fills the root block; <a class="xref" href="Hi.NcParsers.Keywords.CompoundMotion.html#Hi_NcParsers_Keywords_CompoundMotion_ItemsKey">ItemsKey</a>