Efthimis/9086
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Fixed bug introduced in a previous commit about fixing ADD

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(Tim) Efthimis Kritikos 2023-02-24 12:27:29 +00:00
parent 96b7a4d298
commit 9ed3dc3312
1 changed files with 4 additions and 9 deletions
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13
system/decoder.v
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@ -100,15 +100,10 @@ always @( CIR or SIMPLE_MICRO or seq_addr_input ) begin
reg_read_port2_addr={Wbit,3'b000}; reg_read_port2_addr={Wbit,3'b000};
reg_write_addr={Wbit,3'b000}; reg_write_addr={Wbit,3'b000};
ALU_1OP=`ALU_OP_ADD; ALU_1OP=`ALU_OP_ADD;
case({Sbit,Wbit}) if(Wbit)
2'b00,2'b11: next_state=`PROC_DE_LOAD_16_PARAM;
next_state=`PROC_DE_LOAD_8_PARAM; else
2'b01: next_state=`PROC_DE_LOAD_8_PARAM;
next_state=`PROC_DE_LOAD_16_PARAM;
default:begin
`invalid_instruction
end
endcase
end end
11'b1000_00xx_101, /* SUB */ 11'b1000_00xx_101, /* SUB */
11'b1000_00xx_000 : /* ADD */ begin 11'b1000_00xx_000 : /* ADD */ begin