27 lines
630 B
ArmAsm
27 lines
630 B
ArmAsm
;; #LAYOUT# STD * #TAKE
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;; #LAYOUT# X16 BASIC_0 #TAKE-OFFSET 2000
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;; #LAYOUT# * BASIC_0 #TAKE
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;; #LAYOUT# * * #IGNORE
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;
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; Math package - divide FAC1 by 10, result is always positive
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;
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; Notes:
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; - moves FAC1 to FAC2, loads FAC1 with the constant 10, jumps to the division routine
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;
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; See also:
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; - [CM64] Computes Mapping the Commodore 64 - page 114
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; - https://www.c64-wiki.com/wiki/Floating_point_arithmetic
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; - https://codebase64.org/doku.php?id=base:kernal_floating_point_mathematics
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;
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div10_FAC1_p:
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jsr mov_FAC1_FAC2
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ldy #>const_TEN
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lda #<const_TEN
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jsr mov_MEM_FAC1
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jmp div_FAC2_FAC1
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