From 22def89760a80fc2c1debdebf737eaf1ab7fce42 Mon Sep 17 00:00:00 2001
From: Rangi <35663410+Rangi42@users.noreply.github.com>
Date: Thu, 26 Oct 2023 16:54:42 -0400
Subject: [PATCH] Save and restore `opt r` on the stack. (#1178)

Fixes #1174
---
 src/asm/opt.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/asm/opt.c b/src/asm/opt.c
index e31afd54..6ca764d6 100644
--- a/src/asm/opt.c
+++ b/src/asm/opt.c
@@ -275,6 +275,8 @@ void opt_Push(void)
 	entry->warningsAreErrors = warningsAreErrors;
 	memcpy(entry->warningStates, warningStates, sizeof(warningStates));
 
+	entry->maxRecursionDepth = maxRecursionDepth; // Pulled from fstack.h
+
 	entry->next = stack;
 	stack = entry;
 }
@@ -296,6 +298,7 @@ void opt_Pop(void)
 	opt_h(entry->haltnop);
 	opt_L(entry->optimizeLoads);
 	opt_l(entry->warnOnLdOpt);
+	opt_R(entry->maxRecursionDepth);
 
 	// opt_W does not apply a whole warning state; it processes one flag string
 	warningsAreErrors = entry->warningsAreErrors;