Add int to float conversions

strings/85648565

@@ -0,0 +1,4 @@
+STA $64 + STA $65
+
+Storing the same number (mostly 0) to the mantissa of FAC1 is a common operation when clearing parts of a floating point number.
+This is trivial and not copyrightable.

strings/A8A90085

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+TAY + LDA #0 + STA zero page
+
+Saving the accumulator to be able to use it to clear some byte in the zero page. This a common and trivial idea.