Z80::Utils::SinCos - sine-cosine table routines.¶ ↑

in Z80::Utils::SinCos::Macros

Structs¶ ↑

• Z80::Utils::SinCos::SinCos

• Z80::Utils::SinCos::SinCosTable

Example¶ ↑

require 'z80'
require 'z80/utils/sincos'
class Program
    include Z80

    SinCosTable = Utils::SinCos::SinCosTable
    SinCos      = Utils::SinCos::SinCos

    macro_import Utils::SinCos

    sincos      addr 0xF000, SinCos

    start       exx
                push  hl
                call  make_sincos
                pop   hl
                exx
                ld    a, 31    # angle = PI*31/128
                sincos_from_angle sincos, h, l
                ld    c, [hl]  # sine to bc
                inc   l
                ld    b, [hl]
                ret

    make_sincos create_sincos_from_sintable sincos, sintable:sintable
    sintable    bytes   neg_sintable256_pi_half_no_zero_lo
end