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moved all *integer* builtin trig functions (sin8u, cos8u etc) as regular asmsubs in math module

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Irmen de Jong
2022-04-12 23:58:19 +02:00
parent 51bf33040a
commit ab1766a559
30 changed files with 300 additions and 689 deletions
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docs/source/programming.rst
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@@ -745,35 +745,9 @@ ceil(x)
Rounds the floating point up to an integer towards positive infinity.
cos(x)
Cosine. (floating point version)
cos8u(x)
Fast 8-bit ubyte cosine of angle 0..255, result is in range 0..255
cos8(x)
Fast 8-bit byte cosine of angle 0..255, result is in range -127..127
cos16u(x)
Fast 16-bit uword cosine of angle 0..255, result is in range 0..65535
cos16(x)
Fast 16-bit word cosine of angle 0..255, result is in range -32767..32767
cosr8u(x)
Fast 8-bit ubyte cosine of angle 0..179 (each is a 2 degree step), result is in range 0..255
Angles 180..255 will yield a garbage result!
cosr8(x)
Fast 8-bit byte cosine of angle 0..179 (each is a 2 degree step), result is in range -127..127
Angles 180..255 will yield a garbage result!
cosr16u(x)
Fast 16-bit uword cosine of angle 0..179 (each is a 2 degree step), result is in range 0..65535
Angles 180..255 will yield a garbage result!
cosr16(x)
Fast 16-bit word cosine of angle 0..179 (each is a 2 degree step), result is in range -32767..32767
Angles 180..255 will yield a garbage result!
Cosine. (floating point)
If you want a fast integer cosine, have a look at examples/cx16/sincos.p8
that contains various lookup tables generated by the 64tass assembler.
deg(x)
Radians to degrees.
@@ -794,39 +768,13 @@ round(x)
Rounds the floating point to the closest integer.
sin(x)
Sine. (floating point version)
Sine. (floating point)
If you want a fast integer sine, have a look at examples/cx16/sincos.p8
that contains various lookup tables generated by the 64tass assembler.
sgn(x)
Get the sign of the value. Result is -1, 0 or 1 (negative, zero, positive).
sin8u(x)
Fast 8-bit ubyte sine of angle 0..255, result is in range 0..255
sin8(x)
Fast 8-bit byte sine of angle 0..255, result is in range -127..127
sin16u(x)
Fast 16-bit uword sine of angle 0..255, result is in range 0..65535
sin16(x)
Fast 16-bit word sine of angle 0..255, result is in range -32767..32767
sinr8u(x)
Fast 8-bit ubyte sine of angle 0..179 (each is a 2 degree step), result is in range 0..255
Angles 180..255 will yield a garbage result!
sinr8(x)
Fast 8-bit byte sine of angle 0..179 (each is a 2 degree step), result is in range -127..127
Angles 180..255 will yield a garbage result!
sinr16u(x)
Fast 16-bit uword sine of angle 0..179 (each is a 2 degree step), result is in range 0..65535
Angles 180..255 will yield a garbage result!
sinr16(x)
Fast 16-bit word sine of angle 0..179 (each is a 2 degree step), result is in range -32767..32767
Angles 180..255 will yield a garbage result!
sqrt16(w)
16 bit unsigned integer Square root. Result is unsigned byte.
To do the reverse, squaring an integer, just write ``x*x``.