83 lines
1.6 KiB
TeX
83 lines
1.6 KiB
TeX
%%
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%% The IO Subsystem
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%%
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\def\avr@io@init{%
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\def\avr@UDR{}%
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}
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% OUT
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\def\avr@instr@OUT#1#2#3{% A, R
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\def\@@A{#2}
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\avr@bin@msb@del{\@@A}{\@@A}{\@@a}%
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\avr@bin@msb@del{\@@A}{\@@A}{\@@b}%
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\avr@code@set{10111\@@a\@@b#3\@@A}{#1}%
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}
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\csdef{avr@instr@10111}#1#2#3#4#5#6#7#8\@nnil{%
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\def\@@A{#1#2#8}%
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\avr@reg@get{#3#4#5#6#7}{\avr@Rr}%
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\avr@debug{OUT \@@A <- \avr@Rr}%
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\avr@io@set{\avr@Rr}{\@@A}%
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\avr@pc@inc%
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}
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% IO Handlers
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% #1=Value, #2=Addr
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\def\avr@io@set#1#2{%
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\ifcsdef{avr@io@#2@set}{%
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\csuse{avr@io@#2@set}{#1}%
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}{%
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\avr@io@set@default{#1}{#2}%
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}%
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}
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% #1=Addr, #2=\result
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\def\avr@io@get#1#2{%
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\ifcsdef{avr@io@#1@get}{%
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\csuse{avr@io@#1@get}{#2}%
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}{%
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\avr@io@get@default{#1}{#2}%
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}%
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}
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\def\avr@io@set@default#1#2{%
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\avr@error{IO Port #2 is not defined (OUT #1)}%
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}
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\def\avr@io@get@default#1#2{%
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\avr@error{IO Port #1 is not defined (IN)}%
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}
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\csdef{avr@io@111111@set}#1{%
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\avr@debug{ SREG=#1}%
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\avr@sreg@set{#1}%
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}
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\csdef{avr@io@111110@set}#1{\avr@stack@SPH@set{#1}}
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\csdef{avr@io@111101@set}#1{\avr@stack@SPL@set{#1}}
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\csdef{avr@io@001100@set}#1{%
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\avr@bin@tocount{#1}{\avr@count@tmpa}%
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\avr@ascii{\the\avr@count@tmpa}{\@@char}%
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\avr@debug{UDR: #1=\the\avr@count@tmpa}%
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\xdef\avr@UDR{\avr@UDR \@@char}%
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}
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% SPDR
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\csdef{avr@io@001111@set}#1{%
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\csdef{avr@io@001111}{#1}%
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}
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\csdef{avr@io@001111@get}#1{%
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\xdef#1{\csuse{avr@io@001111}}%
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}
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%%% Local Variables:
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%%% mode: latex
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%%% TeX-master: "avr.tex"
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%%% End:
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