mirror of
https://github.com/sxpert/hp-saturn
synced 2024-11-16 19:50:19 +01:00
27 lines
436 B
Verilog
27 lines
436 B
Verilog
/******************************************************************************
|
|
* 0X
|
|
*
|
|
*
|
|
*/
|
|
|
|
`DEC_0X: begin
|
|
case (nibble)
|
|
4'h3: begin
|
|
execute_cycle <= 1;
|
|
decstate <= `DEC_RTNCC;
|
|
end
|
|
4'h4: begin
|
|
execute_cycle <= 1;
|
|
decstate <= `DEC_SETHEX;
|
|
end
|
|
4'h5: begin
|
|
execute_cycle <= 1;
|
|
decstate <= `DEC_SETDEC;
|
|
end
|
|
default: begin
|
|
$display("ERROR : DEC_0X");
|
|
decode_error <= 1;
|
|
end
|
|
endcase
|
|
end
|
|
|