| Line 55... |
Line 55... |
output reg zero_flag,
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output reg zero_flag,
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output reg negative_flag,
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output reg negative_flag,
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output reg carry_flag,
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output reg carry_flag,
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output reg overflow_flag,
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output reg overflow_flag,
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output reg [ 6:0] xgchid,
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output reg [ 6:0] xgchid,
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output reg [127:0] xgif_status, // XGATE Interrupt Flag
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output reg [127:1] xgif_status, // XGATE Interrupt Flag
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output xg_sw_irq, // Xgate Software interrupt
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output xg_sw_irq, // Xgate Software interrupt
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output [ 7:0] host_semap, // Semaphore status for host
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output [ 7:0] host_semap, // Semaphore status for host
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output reg debug_active, // Latch to control debug mode in the RISC state machine
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output reg debug_active, // Latch to control debug mode in the RISC state machine
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output debug_ack, // Clear debug register
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output debug_ack, // Clear debug register
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output single_step, // Pulse to trigger a single instruction execution in debug mode
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output single_step, // Pulse to trigger a single instruction execution in debug mode
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| Line 182... |
Line 182... |
reg wrt_sel_xgr4; // Pseudo Register,
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reg wrt_sel_xgr4; // Pseudo Register,
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reg wrt_sel_xgr5; // Pseudo Register,
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reg wrt_sel_xgr5; // Pseudo Register,
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reg wrt_sel_xgr6; // Pseudo Register,
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reg wrt_sel_xgr6; // Pseudo Register,
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reg wrt_sel_xgr7; // Pseudo Register,
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reg wrt_sel_xgr7; // Pseudo Register,
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|
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reg [127:0] xgif_d;
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reg [127:1] xgif_d;
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|
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reg [15:0] shift_in;
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reg [15:0] shift_in;
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wire [15:0] shift_out;
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wire [15:0] shift_out;
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wire shift_rollover;
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wire shift_rollover;
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reg shift_left;
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reg shift_left;
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| Line 448... |
Line 448... |
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// Interrupt Flag next value
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// Interrupt Flag next value
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always @*
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always @*
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begin
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begin
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xgif_d = 0;
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xgif_d = 0;
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j = 0;
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j = 1;
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while (j <= MAX_CHANNEL)
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while (j <= MAX_CHANNEL) // while loop sets irq bit and maintains previously set bits
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begin
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begin
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xgif_d[j] = xgif_status[j] || (set_irq_flag == j);
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xgif_d[j] = xgif_status[j] || (set_irq_flag == j);
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j = j + 1;
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j = j + 1;
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end
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end
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if (clear_xgif_0)
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if (clear_xgif_0)
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xgif_d[15: 0] = ~clear_xgif_data & xgif_status[15: 0];
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xgif_d[15: 1] = ~clear_xgif_data & xgif_status[15: 1];
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if (clear_xgif_1)
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if (clear_xgif_1)
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xgif_d[31:16] = ~clear_xgif_data & xgif_status[31:16];
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xgif_d[31:16] = ~clear_xgif_data & xgif_status[31:16];
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if (clear_xgif_2)
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if (clear_xgif_2)
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xgif_d[47:32] = ~clear_xgif_data & xgif_status[47:32];
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xgif_d[47:32] = ~clear_xgif_data & xgif_status[47:32];
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if (clear_xgif_3)
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if (clear_xgif_3)
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