108 lines
2.3 KiB
NASM
108 lines
2.3 KiB
NASM
; ***************************************************************************
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; copyright : (C) 2025 by Martin Preuss
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; email : martin@libchipcard.de
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;
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; ***************************************************************************
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; * This file is part of the project "AqHome". *
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; * Please see toplevel file COPYING of that project for license details. *
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; ***************************************************************************
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; ***************************************************************************
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; defines
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.equ FILTER_KEEPUP_OFFS_TIMER = 0
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.equ FILTER_KEEPUP_OFFS_RESTARTVALUE = 1
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.equ FILTER_KEEPUP_DATA_SIZE = 2
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; ***************************************************************************
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; code
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.cseg
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; ---------------------------------------------------------------------------
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; @routine FilterKeepUp_Init @global
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;
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; @param Y pointer to filter data
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; @clobbers r16
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FilterKeepUp_Init:
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clr r16
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std Y+FILTER_KEEPUP_OFFS_TIMER, r16
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ret
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; @end
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; ---------------------------------------------------------------------------
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; @routine FilterKeepUp_Fini @global
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;
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; @param Y pointer to filter data
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FilterKeepUp_Fini:
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; nothing to do
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ret
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; @end
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; ---------------------------------------------------------------------------
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; @routine FilterKeepUp_GetValue @global
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;
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; @param Y pointer to filter data
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; @return R16 value
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; @clobbers none
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FilterKeepUp_GetValue:
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ldd r16, Y+FILTER_KEEPUP_OFFS_TIMER
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tst r16
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breq FilterKeepUp_GetValue_end
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ldi r16, 1
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FilterKeepUp_GetValue_end:
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ret
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; @end
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; ---------------------------------------------------------------------------
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; @routine FilterKeepUp_SetValue @global
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;
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; @param Y pointer to filter data
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; @param R16 value
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; @clobbers r17
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FilterKeepUp_SetValue:
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tst r16
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breq FilterKeepUp_SetValue_end
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ldd r17, Y+FILTER_KEEPUP_OFFS_RESTARTVALUE
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std Y+FILTER_KEEPUP_OFFS_TIMER, r17
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FilterKeepUp_SetValue_end:
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ret
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; @end
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; ---------------------------------------------------------------------------
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; @routine FilterKeepUp_Every100ms @global
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;
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; @param Y pointer to filter data
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; @clobbers r16
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FilterKeepUp_Every100ms:
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ldd r16, Y+FILTER_KEEPUP_OFFS_TIMER
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tst r16
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breq FilterKeepUp_Every100ms_end
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dec r16
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std Y+FILTER_KEEPUP_OFFS_TIMER, r16
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FilterKeepUp_Every100ms_end:
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ret
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; @end
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