37 lines
566 B
NASM
37 lines
566 B
NASM
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; Copyright 2020 KoroLion (github.com/KoroLion)
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global sum
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global fx
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section .data
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section .bss
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temp: resb 4
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section .text
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; float sum(float x, float y)
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; return x + y
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sum:
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finit
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fld dword [esp + 4] ; st0 = x
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fadd dword [esp + 8] ; st0 += y
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ret ; returns st0 to c
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; float fx(float x)
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; return 1 / (x + 2)
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fx:
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; st1
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fld dword [esp + 4] ; st1 = x
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mov dword [temp], 2
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fiadd dword [temp] ; st1 += 2
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; st0
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mov dword [temp], 1
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fild dword [temp] ; st0 = 1
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fdiv st0, st1 ; st0 /= st1
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ret ; returns st0 to c
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