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Williams2: fix the PIA for Inferno sound

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...instead of a hack
This commit is contained in:
Gyorgy Szombathelyi 2022-10-18 18:27:51 +02:00
parent efa81db65b
commit d27f0370c0
2 changed files with 2 additions and 5 deletions
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6
Arcade_MiST/Williams 6809 rev.2 Hardware/rtl/tshoot_sound_board.vhd
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@ -33,7 +33,6 @@ entity tshoot_sound_board is
port(
clock_12 : in std_logic;
reset : in std_logic;
hwsel : in std_logic_vector(1 downto 0);
sound_select : in std_logic_vector(7 downto 0);
sound_trig : in std_logic;
sound_ack : out std_logic;
@ -128,13 +127,12 @@ end process;
-- write enables
wram_we <= '1' when cpu_rw_n = '0' and cpu_clock = '1' and wram_cs = '1' else '0';
pia_rw_n <= '0' when cpu_rw_n = '0' and pia_cs = '1' else '1';
pia_rw_n <= '0' when cpu_rw_n = '0' and pia_cs = '1' else '1';
-- mux cpu in data between roms/io/wram
cpu_di <=
wram_do when wram_cs = '1' else
sound_select when pia_cs = '1' and hwsel = HW_INFERNO else
pia_do when pia_cs = '1' and hwsel /= HW_INFERNO else
pia_do when pia_cs = '1' else
rom_do when rom_cs = '1' else X"55";
-- pia irqs to cpu

1
Arcade_MiST/Williams 6809 rev.2 Hardware/rtl/williams2.vhd
View File

@ -1171,7 +1171,6 @@ tshoot_sound_board : entity work.tshoot_sound_board
port map(
clock_12 => clock_12,
reset => reset,
hwsel => hwsel,
sound_select => sound_select,
sound_trig => sound_trig,
sound_ack => sound_ack,