23 lines
2.8 KiB
Plaintext
23 lines
2.8 KiB
Plaintext
assign CS_BEATRIX_Config_o = ( iBUS_A_i[16:8] == 9'b0_0000_0000) & iBUS_CS_BEATRIX_i; // $00C20000..$00C200FF - Control Registers
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// PSG
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assign CS_Ext_PSG_o = ( iBUS_A_i[16:4] == 9'b0_0000_0001_0000) & iBUS_CS_BEATRIX_i; // $00C20100..$00C2010F - Extern PSG
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assign CS_Int_L_PSG_o = ( iBUS_A_i[16:4] == 9'b0_0000_0001_0001) & iBUS_CS_BEATRIX_i; // $00C20110..$00C2011F - Internal PSG - L Channel
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assign CS_Int_R_PSG_o = ( iBUS_A_i[16:4] == 9'b0_0000_0001_0010) & iBUS_CS_BEATRIX_i; // $00C20120..$00C2012F - Internal PSG - R Channel
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assign CS_Int_S_PSG_o = ( iBUS_A_i[16:4] == 9'b0_0000_0001_0011) & iBUS_CS_BEATRIX_i; // $00C20130..$00C2013F - Internal PSG - S Channel
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// External Devices
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assign CS_OPL3_o = ( iBUS_A_i[16:9] == 8'b0_0000_001) & iBUS_CS_BEATRIX_i; // $00C20200..$00C203FF - Extern OPL3
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assign CS_Ext_OPN2_o = ( iBUS_A_i[16:9] == 8'b0_0000_010) & iBUS_CS_BEATRIX_i; // $00C20400..$00C205FF - Extern OPN2
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assign CS_Ext_OPM_o = ( iBUS_A_i[16:9] == 8'b0_0000_011) & iBUS_CS_BEATRIX_i; // $00C20600..$00C207FF - Extern OPM
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assign CS_Ext_L_SID_o = ( iBUS_A_i[16:8] == 9'b0_0000_1000) & iBUS_CS_BEATRIX_i; // $00C20800..$00C208FF - Extern Left SID
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assign CS_Ext_R_SID_o = ( iBUS_A_i[16:8] == 9'b0_0000_1001) & iBUS_CS_BEATRIX_i; // $00C20900..$00C209FF - Extern Right SID
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// Internal Devices
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assign CS_Int_OPN2_o = ( iBUS_A_i[16:9] == 8'b0_0000_101) & iBUS_CS_BEATRIX_i; // $00C20A00..$00C20BFF - Internal OPN2
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assign CS_Int_OPM_o = ( iBUS_A_i[16:9] == 8'b0_0000_110) & iBUS_CS_BEATRIX_i; // $00C20C00..$00C20DFF - Internal OPM
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assign CS_CODEC_o = ( iBUS_A_i[16:9] == 8'b0_0000_111) & iBUS_CS_BEATRIX_i; // $00C20E00..$00C20FFF - CODEC
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assign CS_Int_L_SID_o = ( iBUS_A_i[16:9] == 8'b0_0001_000) & iBUS_CS_BEATRIX_i; // $00C21000..$00C211FF - Internal SID Left
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assign CS_Int_R_SID_o = ( iBUS_A_i[16:9] == 8'b0_0001_001) & iBUS_CS_BEATRIX_i; // $00C21200..$00C213FF - Internal SID Right
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assign CS_Int_S_SID_o = ( iBUS_A_i[16:9] == 8'b0_0001_010) & iBUS_CS_BEATRIX_i; // $00C21400..$00C215FF - Internal SID Stereo
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assign CS_CPU_2_DAC48_o = ( iBUS_A_i[16:8] == 9'b0_0010_0000) & iBUS_CS_BEATRIX_i; // $00C20000..$00C000FF - CPU 2 DAC - 48Khz
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assign CS_CPU_2_DAC44_o = ( iBUS_A_i[16:8] == 9'b0_0010_0001) & iBUS_CS_BEATRIX_i; // $00C20100..$00C001FF - CPU 2 DAC - 44Khz |