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fixes for floating point subtraction

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FeralChild64 committed 2020-02-14 19:25:53 +01:00
1 parent 0e867480e9
commit c1335b908f
3 files changed
+112 -30
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c64/basic/math/bfb4.toggle_sign_FAC1.s
+4
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@@ -16,6 +16,10 @@ toggle_sign_FAC1:
lda FAC1_exponent
beq !+ // do not toggle the sign if value is 0
// FALLTROUGH
toggle_sign_FAC1_skipcheck: // entry for other routines
lda FAC1_sign
eor #$FF
sta FAC1_sign