runer112

; (c) Copyright 2016 Matt Waltz
;-------------------------------------------------------------------------
; Faster memset variation
; Reasons faster:
;  1) uses ldir to memset
;  2) executes in RAM to avoid flash wait states
;-------------------------------------------------------------------------
	.def	_memset_fast
	.assume adl=1

runer112

; Response to https://gist.github.com/nitro2k01/e45e47f8469009b8a43ad5e48d951442,
; which is nitro2k01's response to RGME about Pokemon Yellow sample playback.
; For this to make any sense, you'll definitely want to watch the video and
; then read nitro2k01's response.

; With the restriction that the sound data must end at the end of a page (which
; seems fine, you're probably not fitting multiple of these onto a page), 24
; cycles per sample is achievable:

; hl = data

runer112

	assume	adl=1

	section	.text
	public	_roundf
_roundf:
;    exponent_biased >= 0 && exponent_biased < 256
; && exponent_biased = exponent + 127
;  = exponent + 127 >= 0 && exponent + 127 < 256
;  = exponent >= -127 && exponent < 129