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-rw-r--r--fpga/usrp2/opencores/aemb/rtl/verilog/aeMB_bpcu.v5
-rw-r--r--fpga/usrp2/opencores/aemb/rtl/verilog/aeMB_core_BE.v27
2 files changed, 21 insertions, 11 deletions
diff --git a/fpga/usrp2/opencores/aemb/rtl/verilog/aeMB_bpcu.v b/fpga/usrp2/opencores/aemb/rtl/verilog/aeMB_bpcu.v
index a7c686e7e..81587e25c 100644
--- a/fpga/usrp2/opencores/aemb/rtl/verilog/aeMB_bpcu.v
+++ b/fpga/usrp2/opencores/aemb/rtl/verilog/aeMB_bpcu.v
@@ -125,7 +125,7 @@ module aeMB_bpcu (/*AUTOARG*/
reg [31:2] rPC, xPC;
reg [31:2] rPCLNK, xPCLNK;
- assign iwb_adr_o = rIPC[IW-1:2];
+ assign iwb_adr_o = gena ? xIPC[IW-1:2] : rIPC[IW-1:2]; //IJB
always @(/*AUTOSENSE*/rBRA or rIPC or rPC or rRESULT) begin
//xPCLNK <= (^rATOM) ? rPC : rPC;
@@ -168,7 +168,8 @@ module aeMB_bpcu (/*AUTOARG*/
rATOM <= 2'h0;
rBRA <= 1'h0;
rDLY <= 1'h0;
- rIPC <= 30'h0;
+// rIPC <= 30'h0;
+ rIPC <= 30'h3fffffff; // DWORD aligned address
rPC <= 30'h0;
rPCLNK <= 30'h0;
// End of automatics
diff --git a/fpga/usrp2/opencores/aemb/rtl/verilog/aeMB_core_BE.v b/fpga/usrp2/opencores/aemb/rtl/verilog/aeMB_core_BE.v
index 9ffa20ff2..38ca3a023 100644
--- a/fpga/usrp2/opencores/aemb/rtl/verilog/aeMB_core_BE.v
+++ b/fpga/usrp2/opencores/aemb/rtl/verilog/aeMB_core_BE.v
@@ -10,12 +10,10 @@ module aeMB_core_BE
parameter MUL=0, parameter BSF=0)
(input sys_clk_i,
input sys_rst_i,
-
- output iwb_stb_o,
- output [ISIZ-1:0] iwb_adr_o,
- input [31:0] iwb_dat_i,
- input iwb_ack_i,
-
+ // Instruction port
+ output [14:0] if_adr,
+ input [31:0] if_dat,
+ // Data port
output dwb_we_o,
output dwb_stb_o,
output [DSIZ-1:0] dwb_adr_o,
@@ -28,17 +26,28 @@ module aeMB_core_BE
input sys_int_i,
input sys_exc_i);
- assign dwb_cyc_o = dwb_stb_o;
+ wire [ISIZ-1:0] iwb_adr_o;
+ wire [31:0] iwb_dat_i;
+ wire iwb_ack_i;
+ wire iwb_stb_o;
+
+ assign dwb_cyc_o = dwb_stb_o;
+ assign iwb_ack_i = 1'b1;
+ assign if_adr = iwb_adr_o[14:0];
+ assign iwb_dat_i = if_dat;
+
+ // Note some "wishbone" instruction fetch signals pruned on external interface
+ // but not propogated change deep into aeMB.
aeMB_edk32 #(.IW(ISIZ),.DW(DSIZ),.MUL(MUL),.BSF(BSF))
aeMB_edk32 (.sys_clk_i(sys_clk_i),
.sys_rst_i(sys_rst_i),
-
+ // Instruction Port
.iwb_stb_o(iwb_stb_o),
.iwb_adr_o(iwb_adr_o[ISIZ-1:2]),
.iwb_ack_i(iwb_ack_i),
.iwb_dat_i(iwb_dat_i),
-
+ // Data port
.dwb_wre_o(dwb_we_o),
.dwb_stb_o(dwb_stb_o),
.dwb_adr_o(dwb_adr_o[DSIZ-1:2]),