URL
https://opencores.org/ocsvn/openrisc/openrisc/trunk
Go to most recent revision |
Show entire file |
Details |
Blame |
View Log
Rev 258 |
Rev 358 |
Line 136... |
Line 136... |
assign icpu_tag_o = `OR1200_ITAG_NI;
|
assign icpu_tag_o = `OR1200_ITAG_NI;
|
|
|
//
|
//
|
// genpc_freeze_r
|
// genpc_freeze_r
|
//
|
//
|
always @(posedge clk or posedge rst)
|
always @(posedge clk or `OR1200_RST_EVENT rst)
|
if (rst)
|
if (rst == `OR1200_RST_VALUE)
|
genpc_refetch_r <= 1'b0;
|
genpc_refetch_r <= 1'b0;
|
else if (genpc_refetch)
|
else if (genpc_refetch)
|
genpc_refetch_r <= 1'b1;
|
genpc_refetch_r <= 1'b1;
|
else
|
else
|
genpc_refetch_r <= 1'b0;
|
genpc_refetch_r <= 1'b0;
|
Line 253... |
Line 253... |
end
|
end
|
|
|
//
|
//
|
// PC register
|
// PC register
|
//
|
//
|
always @(posedge clk or posedge rst)
|
always @(posedge clk or `OR1200_RST_EVENT rst)
|
// default value
|
// default value
|
if (rst) begin
|
if (rst == `OR1200_RST_VALUE) begin
|
pcreg_default <= `OR1200_BOOT_PCREG_DEFAULT; // jb
|
pcreg_default <= `OR1200_BOOT_PCREG_DEFAULT; // jb
|
pcreg_select <= 1'b1;// select async. value due to reset state
|
pcreg_select <= 1'b1;// select async. value due to reset state
|
end
|
end
|
// selected value (different from default) is written into FF after
|
// selected value (different from default) is written into FF after
|
// reset state
|
// reset state
|
© copyright 1999-2025
OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.