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Fix irq_enable

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This commit is contained in:
Sven Stucki 2015-10-16 15:41:02 +02:00
parent 30318e694a
commit 906b51305e
1 changed files with 5 additions and 7 deletions
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12
exc_controller.sv
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@ -58,7 +58,7 @@ module riscv_exc_controller
integer i;
assign req_int = illegal_insn_i | ecall_insn_i | (|irq_i);
assign req_int = illegal_insn_i | ecall_insn_i | (irq_enable_i & (|irq_i));
// Exception cause and ISR address selection
@ -69,7 +69,7 @@ module riscv_exc_controller
for (i = 31; i >= 0; i--)
begin
if (irq_i[i]) begin
if (irq_enable_i && irq_i[i]) begin
cause_int[5] = 1'b1;
cause_int[4:0] = i;
pc_mux_int = `EXC_PC_IRQ;
@ -117,12 +117,10 @@ module riscv_exc_controller
unique case (exc_ctrl_cs)
IDLE:
begin
if (irq_enable_i) begin
req_o = req_int;
req_o = req_int;
if (req_int)
exc_ctrl_ns = WAIT_CONTROLLER;
end
if (req_int)
exc_ctrl_ns = WAIT_CONTROLLER;
end
WAIT_CONTROLLER: