This module contains wrappers for all GBA BIOS function calls.
A GBA BIOS call has significantly more overhead than a normal function call,
so think carefully before using them too much.
The actual content of each function here is generally a single inline asm
instruction to invoke the correct BIOS function (swi x, with x being
whatever value is necessary for that function). Some functions also perform
necessary checks to save you from yourself, such as not dividing by zero.
| atan | (swi 0x09) Gives the arctangent of theta.
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| atan2 | (swi 0x0A) Gives the atan2 of y over x.
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| cpu_fast_set⚠ | (swi 0x0C) "CpuFastSet", copies memory in 32 byte chunks.
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| cpu_set16⚠ | (swi 0x0B) "CpuSet", u16 memory copy.
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| cpu_set32⚠ | (swi 0x0B) "CpuSet", u32 memory copy/fill.
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| div | As div_rem, keeping only the div output.
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| div_rem | (swi 0x06) Software Division and Remainder.
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| get_bios_checksum | (swi 0x0C) "GetBiosChecksum" (Undocumented)
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| halt | (swi 0x02) Halts the CPU until an interrupt occurs.
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| interrupt_wait | (swi 0x04) "IntrWait", similar to halt but with more options.
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| register_ram_reset⚠ | (swi 0x01) RegisterRamReset.
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| rem | As div_rem, keeping only the rem output.
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| soft_reset⚠ | (swi 0x00) SoftReset the device.
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| sound_bias | (swi 0x19) "SoundBias", adjusts the volume level to a new level.
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| sound_channel_clear | (swi 0x1E) "SoundChannelClear", clears the direct sound channels and stops
the sound.
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| sound_driver_main | (swi 0x1C) "SoundDriverMain", main of the sound driver
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| sound_driver_mode | (swi 0x1B) "SoundDriverMode", sets the sound driver operation mode.
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| sound_driver_vsync | (swi 0x1D) "SoundDriverVSync", resets the sound DMA.
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| sound_driver_vsync_off | (swi 0x28) "SoundDriverVSyncOff", disables sound
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| sound_driver_vsync_on | (swi 0x29) "SoundDriverVSyncOn", enables sound that was stopped by
sound_driver_vsync_off.
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| sqrt | (swi 0x08) Integer square root.
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| stop | (swi 0x03) Stops the CPU as well as most other components.
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| vblank_interrupt_wait | (swi 0x05) "VBlankIntrWait", VBlank Interrupt Wait.
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