hp-saturn/opcodes/80x.v


/******************************************************************************
 * 80
 * a lot of things start with 80...
 *
 */ 

`include "decstates.v"

`DEC_80X: begin
    case (nb_in)
    4'h5:
`include "opcodes/805_CONFIG.v"
    4'ha:   
`include "opcodes/80A_RESET.v"
    4'hc:	decstate <= `DEC_C_EQ_P_N;
    default: begin
        $display("ERROR : DEC_80X");
        decode_error <= 1;
    end
    endcase
end
entirely redesign the state machine 2019-02-07 22:54:06 +01:00
			`/******************************************************************************`
			`* 80`
			`* a lot of things start with 80...`
			`*`
			`*/`

implement more instructions, catch errors 2019-02-07 23:31:35 +01:00			`include "decstates.v"

			`DEC_80X: begin
lots of corrections 2019-02-09 19:18:58 +01:00			`case (nb_in)`
rewrite in less spaghetti code style 2019-02-08 19:09:13 +01:00			`4'h5:`
			`include "opcodes/805_CONFIG.v"
			`4'ha:`
			`include "opcodes/80A_RESET.v"
implement more instructions, catch errors 2019-02-07 23:31:35 +01:00			4'hc: decstate <= `DEC_C_EQ_P_N;
			`default: begin`
			`$display("ERROR : DEC_80X");`
			`decode_error <= 1;`
			`end`
			`endcase`
			`end`