Revision 11
Added by markw over 11 years ago
| common/a8core/pokey_mixer.vhdl | ||
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END pokey_mixer;
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ARCHITECTURE vhdl OF pokey_mixer IS
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signal volume_next : std_logic_vector(15 downto 0);
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signal volume_reg : std_logic_vector(15 downto 0);
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signal volume_next : std_logic_vector(15 downto 0);
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signal volume_next_real : std_logic_vector(15 downto 0);
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signal volume_all_next : std_logic_vector(15 downto 0);
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signal volume_all_reg : std_logic_vector(15 downto 0);
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signal volume_sum : std_logic_vector(5 downto 0);
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| ... | ... | |
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process(clk)
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begin
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if (clk'event and clk='1') then
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volume_reg <= volume_next_real;
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volume_reg <= volume_next;
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volume_all_reg <= volume_all_next;
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end if;
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end process;
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| ... | ... | |
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when others =>
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volume_next <= X"79FF"; -- in case GTIA playing at full vol!
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end case;
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end process;
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-- volume_next_real <= std_LOGIC_vector(
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-- (unsigned('0'&volume_next(15 downto 1))
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-- + unsigned(gtia_en))
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-- + (unsigned("00"&covox_CHANNEL_0)
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-- + unsigned("00"&covox_CHANNEL_1)));
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--volume_next_real <= '0'&volume_next(15 downto 1);
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volume_next_real <= std_LOGIC_vector(
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(unsigned("00"&volume_next(15 downto 2))
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process(volume_reg, gtia_en, covox_channel_0, covox_channel_1)
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begin
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volume_all_next <= std_LOGIC_vector(
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(unsigned("00"&volume_reg(15 downto 2))
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+ unsigned(gtia_en))
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+ (unsigned("000"&covox_CHANNEL_0&"00000")
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+ unsigned("000"&covox_CHANNEL_1&"00000")));
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| ... | ... | |
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end process;
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-- output
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-- TODO
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volume_out <= volume_reg;
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volume_out <= volume_all_reg;
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END vhdl;
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END vhdl;
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Also available in: Unified diff
Split ROM into its own process, to make it easier for Quartus to infer