@
@ Arithmetic functions.
@

@ Division.
    .text
    .code 16
    .align 2
    .global bios_div
    .thumb_func
bios_div:
    swi     0x06
    bx      lr

@ Square root.
    .text
    .code 16
    .align 2
    .global bios_sqrt
    .thumb_func
bios_sqrt:
    swi     0x08
    bx      lr

@ Arc-tangent.
    .text
    .code 16
    .align 2
    .global bios_atan
    .thumb_func
bios_atan:
    swi     0x09
    bx      lr

@ Arc-tangent2.
    .text
    .code 16
    .align 2
    .global bios_atan2
    .thumb_func
bios_atan2:
    swi     0x0a
    bx      lr

@
@ Rotation/Scaling.
@

@ BG Affine Set.
    .text
    .code 16
    .align 2
    .global bios_bg_affine_set
    .thumb_func
bios_bg_affine_set:
    swi     0x0e
    bx      lr

@ OBJ Affine Set.
    .text
    .code 16
    .align 2
    .global bios_obj_affine_set
    .thumb_func
bios_obj_affine_set:
    swi     0x0f
    bx      lr

@
@ (De)compression.
@

@ Bit unpacking.
    .text
    .code 16
    .align 2
    .global bios_bit_unpack
    .thumb_func
bios_bit_unpack:
    swi     0x10
    bx      lr

@ Huffman decompression.
    .text
    .code 16
    .align 2
    .global bios_huff_expand
    .thumb_func
bios_huff_expand:
    swi     0x13
    bx      lr

@ LZ77 decompression (Fast, WRAM, 8 bit writes).
    .text
    .code 16
    .align 2
    .global bios_lz77_expand_wram
    .thumb_func
bios_lz77_expand_wram:
    swi     0x11
    bx      lr

@ LZ77 decompression (Slow, VRAM, 16 bit writes).
    .text
    .code 16
    .align 2
    .global bios_lz77_expand_vram
    .thumb_func
bios_lz77_expand_vram:
    swi     0x12
    bx      lr

@ Run length encoding decompression (Fast, WRAM, 8 bit writes).
    .text
    .code 16
    .align 2
    .global bios_rle_expand_wram
    .thumb_func
bios_rle_expand_wram:
    swi     0x14
    bx      lr

@ Run length encoding decompression (Slow, VRAM, 16 bit writes).
    .text
    .code 16
    .align 2
    .global bios_rle_expand_vram
    .thumb_func
bios_rle_expand_vram:
    swi     0x15
    bx      lr

@
@ Memory copy.
@

@ Memcopy/memfill in 32 byte units (Fast).
    .text
    .code 16
    .align 2
    .global bios_memcopy_32
    .thumb_func
bios_memcopy_32:
    swi     0x0C
    bx      lr

@ Memcopy/memfill in 4 / 2 byte units (Slow).
    .text
    .code 16
    .align 2
    .global bios_memcopy_8
    .thumb_func
bios_memcopy_8:
    swi     0x0B
    bx      lr

@
@ Sound functions.
@

@ MIDI key to frequency.
    .text
    .code 16
    .align 2
    .global bios_midi2freq
    .thumb_func
bios_midi2freq:
    swi     0x1f
    bx      lr

@ Sound bias.
    .text
    .code 16
    .align 2
    .global bios_sound_bias
    .thumb_func
bios_sound_bias:
    swi     0x19
    bx      lr

@ Sound channels clear.
    .text
    .code 16
    .align 2
    .global bios_sound_clear
    .thumb_func
bios_sound_clear:
    swi     0x1e
    bx      lr

@ Sound driver initialization.
    .text
    .code 16
    .align 2
    .global bios_sound_init
    .thumb_func
bios_sound_init:
    swi     0x1a
    bx      lr

@ Sound main function. To be called each 1/60 of a second after the sound VSync.
    .text
    .code 16
    .align 2
    .global bios_sound_main
    .thumb_func
bios_sound_main:
    swi     0x1c
    bx      lr

@ Sound driver operation mode.
    .text
    .code 16
    .align 2
    .global bios_sound_mode
    .thumb_func
bios_sound_mode:
    swi     0x1b
    bx      lr

@ Sound VSync. Called just after the VBlank interrupt each 1/60 of a second.
    .text
    .code 16
    .align 2
    .global bios_sound_vsync
    .thumb_func
bios_sound_vsync:
    swi     0x1d
    bx      lr

@ Sound VSync off In case of issues manually call this to stop the sound.
    .text
    .code 16
    .align 2
    .global bios_sound_vsync_off
    .thumb_func
bios_sound_vsync_off:
    swi     0x28
    bx      lr

@
@ Halt/Reset functions.
@

@ Halt until interrupt request.
    .text
    .code 16
    .align 2
    .global bios_halt
    .thumb_func
bios_halt:
    swi     0x02
    bx      lr

@ Halt until one of the specified interrupts occur.
    .text
    .code 16
    .align 2
    .global bios_interrupt_wait
    .thumb_func
bios_interrupt_wait:
    swi     0x04
    bx      lr

@ Halt until the VBlank interrupt occurs.
    .text
    .code 16
    .align 2
    .global bios_vblank_wait
    .thumb_func
bios_vblank_wait:
    swi     0x05
    bx      lr

@ Stop. Switches GBA to low power mode.
    .text
    .code 16
    .align 2
    .global bios_stop
    .thumb_func
bios_stop:
    swi     0x03
    bx      lr

@ Soft reset.
    .text
    .code 16
    .align 2
    .global bios_soft_reset
    .thumb_func
bios_soft_reset:
    swi     0x00
    bx      lr

@ Register RAM reset.
    .text
    .code 16
    .align 2
    .global bios_regram_reset
    .thumb_func
bios_regram_reset:
    swi     0x01
    bx      lr

@ Hard reset.
    .text
    .code 16
    .align 2
    .global bios_hard_reset
    .thumb_func
bios_hard_reset:
    swi     0x26
    bx      lr

@
@ Misc functions.
@

@ BIOS checksum.
    .text
    .code 16
    .align 2
    .global bios_bios_checksum
    .thumb_func
bios_bios_checksum:
    swi     0x0d
    bx      lr

@ MultiBoot.
    .text
    .code 16
    .align 2
    .global bios_multiboot
    .thumb_func
bios_multiboot:
    swi     0x25
    bx      lr