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Remove redundant mstatus register

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Olof Kindgren 2020-08-25 22:28:12 +02:00
parent 9142c3ca02
commit fa6c420b10
2 changed files with 1 additions and 6 deletions
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6
rtl/serv_csr.v
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@ -4,7 +4,6 @@ module serv_csr
input wire i_clk,
input wire i_en,
input wire i_cnt0to3,
input wire i_cnt2,
input wire i_cnt3,
input wire i_cnt7,
input wire i_cnt_done,
@ -35,7 +34,6 @@ module serv_csr
CSR_SOURCE_SET = 2'b10,
CSR_SOURCE_CLR = 2'b11;
reg mstatus;
reg mstatus_mie;
reg mstatus_mpie;
reg mie_mtie;
@ -55,7 +53,7 @@ module serv_csr
(i_csr_source == CSR_SOURCE_CSR) ? csr_out :
1'bx;
assign csr_out = (i_mstatus_en & i_en & mstatus) |
assign csr_out = (i_mstatus_en & mstatus_mie & i_cnt3) |
i_rf_csr_out |
(i_mcause_en & i_en & mcause);
@ -83,8 +81,6 @@ module serv_csr
if (i_mie_en & i_cnt7)
mie_mtie <= csr_in;
mstatus <= i_cnt2 & mstatus_mie;
timer_irq_r <= timer_irq;
if (i_mret) begin

1
rtl/serv_top.v
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@ -419,7 +419,6 @@ module serv_top
.i_clk (clk),
.i_en (cnt_en),
.i_cnt0to3 (cnt0to3),
.i_cnt2 (cnt2),
.i_cnt3 (cnt3),
.i_cnt7 (cnt7),
.i_cnt_done (cnt_done),