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FPGA: implement MSU1 "audio error" status bit

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This commit is contained in:
Maximilian Rehkopf 2012-07-09 02:20:13 +02:00
parent 9fbe61bad1
commit 9253cc45b0
2 changed files with 4 additions and 4 deletions
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2
verilog/sd2snes/msu.v
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@ -195,7 +195,7 @@ always @(posedge clkin) begin
data_busy_r <= (data_busy_r | status_set_bits[4]) & ~status_reset_bits[4]; data_busy_r <= (data_busy_r | status_set_bits[4]) & ~status_reset_bits[4];
if(status_reset_bits[4]) data_start_r <= 1'b0; if(status_reset_bits[4]) data_start_r <= 1'b0;
// volume_start_r <= (volume_start_r | status_set_bits[3]) & ~status_reset_bits[3]; audio_error_r <= (audio_error_r | status_set_bits[3]) & ~status_reset_bits[3];
audio_status_r <= (audio_status_r | status_set_bits[2:1]) & ~status_reset_bits[2:1]; audio_status_r <= (audio_status_r | status_set_bits[2:1]) & ~status_reset_bits[2:1];

6
verilog/sd2snes_cx4/msu.v
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@ -146,8 +146,8 @@ reg [7:0] data_out_r;
assign reg_data_out = data_out_r; assign reg_data_out = data_out_r;
always @(posedge clkin) begin always @(posedge clkin) begin
case(reg_addr_r[3]) case(reg_addr_r[1])
3'h0: data_out_r <= {data_busy_r, audio_busy_r, audio_status_r, 4'b0001}; 3'h0: data_out_r <= {data_busy_r, audio_busy_r, audio_status_r, audio_error_r, 3'b001};
3'h1: data_out_r <= msu_data; 3'h1: data_out_r <= msu_data;
3'h2: data_out_r <= 8'h53; 3'h2: data_out_r <= 8'h53;
3'h3: data_out_r <= 8'h2d; 3'h3: data_out_r <= 8'h2d;
@ -195,7 +195,7 @@ always @(posedge clkin) begin
data_busy_r <= (data_busy_r | status_set_bits[4]) & ~status_reset_bits[4]; data_busy_r <= (data_busy_r | status_set_bits[4]) & ~status_reset_bits[4];
if(status_reset_bits[4]) data_start_r <= 1'b0; if(status_reset_bits[4]) data_start_r <= 1'b0;
// volume_start_r <= (volume_start_r | status_set_bits[3]) & ~status_reset_bits[3]; audio_error_r <= (audio_error_r | status_set_bits[3]) & ~status_reset_bits[3];
audio_status_r <= (audio_status_r | status_set_bits[2:1]) & ~status_reset_bits[2:1]; audio_status_r <= (audio_status_r | status_set_bits[2:1]) & ~status_reset_bits[2:1];