for Mega65 disable the extended stack on cold/warm restart

c64/aliases/,aliases_cpu.s

@@ -69,6 +69,11 @@
 
 #if HAS_OPCODES_65CE02
 
+// CPU flags support
+
+.pseudocommand cle { .byte $02 }
+.pseudocommand see { .byte $03 }
+
 // .B register support
 
 .pseudocommand tab { .byte $5B }

c64/kernal/init/fce2.hw_entry_reset.s

@@ -16,6 +16,12 @@ hw_entry_reset:
 
 	cld                      // required for all CPUs - due to possibility of manual call
 
+#if HAS_OPCODES_65CE02
+
+	see                      // disable extended stack
+
+#endif
+
 	ldx #$FF
 	txs
 

c64/kernal/interrupts/fe66.default_brk_handler.s

@@ -18,6 +18,12 @@ default_brk_handler:
 
 	cld                      // make sure this dangerous flag is disabled
 
+#if HAS_OPCODES_65CE02
+
+	see                      // disable extended stack
+
+#endif
+
 	jsr JRESTOR
 	jsr JIOINIT