Miroirs/hp-saturn
1
0
Fork 0
mirror of https://github.com/sxpert/hp-saturn synced 2024-11-16 19:50:19 +01:00
Code Issues Projects Releases Packages Wiki Activity Actions

fix all bad warnings

Browse source
This commit is contained in:
Raphael Jacquot 2019-02-07 08:55:41 +01:00
parent b5c3a56273
commit 5a5fc9c775
2 changed files with 42 additions and 21 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

40
hp48_io_ram.v
View file

@ -87,8 +87,12 @@ always @(*)
io_ram_active = ((base_addr>=data_ptr)&(data_ptr<base_addr+IO_RAM_LEN))&(configured);
end
always @(posedge clk)
always @(negedge clk)
case (command)
`BUSCMD_PC_READ:
begin
pc_ptr <= pc_ptr + 1;
end
`BUSCMD_LOAD_PC:
begin
`ifdef SIM
@ -96,8 +100,27 @@ always @(posedge clk)
`endif
pc_ptr <= address;
end
`BUSCMD_LOAD_DP:
begin
`ifdef SIM
$display("io_ram: LOAD_DP %5h", address);
`endif
data_ptr <= address;
end
`BUSCMD_DP_WRITE:
begin
data_ptr <= data_ptr + 1;
end
default: begin end
endcase
/*
*
*
*
*/
always @(negedge clk)
if ((~reset)&(~io_ram_error))
case (command)
@ -112,11 +135,6 @@ always @(negedge clk)
$display("io_ram: PC_READ %5h %h | OK", data_ptr, nibble_in);
`endif
end
// `ifdef SIM
// else
// $display("io_ram: PC_READ %5h %h | NOK - IO_RAM not active (conf: %b)", data_ptr, nibble_in, configured);
// `endif
pc_ptr <= pc_ptr + 1;
end
`BUSCMD_DP_WRITE:
begin
@ -132,16 +150,10 @@ always @(negedge clk)
else
$display("io_ram: DP_WRITE %5h %h | NOK - IO_RAM not active (conf: %b)", data_ptr, nibble_in, configured);
`endif
data_ptr <= data_ptr + 1;
// data_ptr <= data_ptr + 1;
end
`BUSCMD_LOAD_PC: begin end // done on posedge
`BUSCMD_LOAD_DP:
begin
`ifdef SIM
//$display("io_ram: LOAD_DP %5h", address);
`endif
data_ptr <= address;
end
`BUSCMD_LOAD_DP: begin end
`BUSCMD_CONFIGURE:
begin
`ifdef SIM

23
hp48_rom.v
View file

@ -45,14 +45,23 @@ end
*/
always @(posedge clk)
if (command == `BUSCMD_LOAD_PC)
begin
case (command)
`BUSCMD_LOAD_PC:
begin
`ifdef SIM
$display("rom: LOAD_PC %5h", address);
$display("rom: LOAD_PC %5h", address);
`endif
pc_ptr <= address;
end
pc_ptr <= address;
end
`BUSCMD_PC_READ:
begin
`ifdef SIM
$display("rom: inc PC");
`endif
pc_ptr <= pc_ptr + 1;
end
default: begin end
endcase
/**************************************
*
@ -69,7 +78,7 @@ always @(negedge clk)
//$display("rom: PC_READ %5h => %h", address, rom[pc_ptr]);
`endif
nibble_out <= rom[pc_ptr];
pc_ptr <= pc_ptr + 1;
// pc_ptr <= pc_ptr + 1;
end
`BUSCMD_LOAD_PC: begin end // do nothing here, handled on @(posedge clk)
`BUSCMD_LOAD_DP: