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cee3d1c859
This also fixes two bugs: `-1 >>> 32` was -1 not 0, and `macro_FreeArgs` should have been called but wasn't.
41 lines
800 B
NASM
41 lines
800 B
NASM
for Q, 2, 31
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OPT Q.{d:Q}
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assert sin(0.25) == 1.0
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assert asin(1.0) == 0.25
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assert sin(0.0) == 0.0
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assert asin(0.0) == 0.0
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assert cos(0.0) == 1.0
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assert acos(1.0) == 0.0
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if Q > 2 ; can't represent 0.125 in Q.2
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assert tan(0.125) == 1.0
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assert atan(1.0) == 0.125
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assert atan2(1.0, 1.0) == 0.125
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else
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assert tan(0.0) == 0.0
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assert atan(0.0) == 0.0
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assert atan2(0.0, 1.0) == 0.0
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endc
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endr
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SECTION "sine", ROM0[0]
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OPT Q.16
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; Generate a table of sine values from sin(0.0) to sin(1.0), with
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; amplitude scaled from [-1.0, 1.0] to [0.0, 128.0]
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DEF turns = 0.0
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REPT 256
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db MUL(64.0, SIN(turns) + 1.0) >> 16
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DEF turns += 1.0 / 256
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ENDR
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SECTION "cosine", ROM0[256]
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OPT Q.8
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; 32 samples of cos(x) from x=0 to x=pi radians=0.5 turns
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for x, 0.0, 0.5, 0.5 / 32
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dw cos(x)
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endr
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