| Line 43... |
Line 43... |
//////////////////////////////////////////////////////////////////////
|
//////////////////////////////////////////////////////////////////////
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//
|
//
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// CVS Revision History
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// CVS Revision History
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//
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//
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// $Log: not supported by cvs2svn $
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// $Log: not supported by cvs2svn $
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// Revision 1.12 2002/10/17 18:50:00 simont
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// cahnge interface to instruction rom
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//
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// Revision 1.11 2002/09/30 17:33:59 simont
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// Revision 1.11 2002/09/30 17:33:59 simont
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// prepared header
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// prepared header
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//
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//
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//
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//
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|
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| Line 59... |
Line 62... |
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|
|
|
module oc8051_decoder (clk, rst, op_in, eq, ram_rd_sel, ram_wr_sel, bit_addr,
|
module oc8051_decoder (clk, rst, op_in, eq, ram_rd_sel, ram_wr_sel, bit_addr,
|
wr, src_sel1, src_sel2, src_sel3, alu_op, psw_set, cy_sel, imm_sel, pc_wr,
|
wr, src_sel1, src_sel2, src_sel3, alu_op, psw_set, cy_sel, imm_sel, pc_wr,
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pc_sel, comp_sel, rom_addr_sel, ext_addr_sel, wad2, rd, we_o, reti,
|
pc_sel, comp_sel, rom_addr_sel, ext_addr_sel, wad2, rd, we_o, reti,
|
rmw, stb_o, ack_i, wr_xaddr, istb, ea, iack);
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rmw, stb_o, ack_i, wr_xaddr, istb, ea, iack, pc_wait, nop);
|
|
|
//
|
//
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// clk (in) clock
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// clk (in) clock
|
// rst (in) reset
|
// rst (in) reset
|
// op_in (in) operation code [oc8051_op_select.op1]
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// op_in (in) operation code [oc8051_op_select.op1]
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| Line 90... |
Line 93... |
// reti (out) return from interrupt [pin]
|
// reti (out) return from interrupt [pin]
|
// rmw (out) read modify write feature [oc8051_ports.rmw]
|
// rmw (out) read modify write feature [oc8051_ports.rmw]
|
// istb (out) strobe to instruction rom
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// istb (out) strobe to instruction rom
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// ea (in) extrnal access
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// ea (in) extrnal access
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// iack (in) scknowlage from external rom
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// iack (in) scknowlage from external rom
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|
// pc_wait (out)
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// nop (out) insert nops
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//
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//
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|
|
input clk, rst, eq, ack_i, iack, ea;
|
input clk, rst, eq, ack_i, iack, ea;
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input [7:0] op_in;
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input [7:0] op_in;
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|
|
output wr, reti, we_o, bit_addr, src_sel3, rom_addr_sel, ext_addr_sel,
|
output wr, reti, we_o, bit_addr, src_sel3, rom_addr_sel, ext_addr_sel,
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pc_wr, wad2, rmw, stb_o, wr_xaddr, istb;
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pc_wr, wad2, rmw, stb_o, wr_xaddr, istb, pc_wait;
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output [1:0] ram_rd_sel, src_sel1, src_sel2, psw_set, cy_sel, pc_sel, comp_sel;
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output [1:0] ram_rd_sel, src_sel1, src_sel2, psw_set, cy_sel, pc_sel, comp_sel;
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output [2:0] ram_wr_sel, imm_sel;
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output [2:0] ram_wr_sel, imm_sel;
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output [3:0] alu_op;
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output [3:0] alu_op;
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output rd;
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output rd, nop;
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|
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reg reti, write_x, rmw, stb_buff, we_buff, istb_t;
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reg reti, write_x, rmw, stb_buff, we_buff, istb_t;
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reg wr, bit_addr, src_sel3, rom_addr_sel, ext_addr_sel, pc_wr, wad2, stb, stbw, wr_xaddr;
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reg wr, bit_addr, src_sel3, rom_addr_sel, ext_addr_sel, pc_wr, wad2, stb, stbw, wr_xaddr;
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reg [1:0] comp_sel, psw_set, ram_rd_sel, src_sel1, src_sel2, pc_sel, cy_sel;
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reg [1:0] comp_sel, psw_set, ram_rd_sel, src_sel1, src_sel2, pc_sel, cy_sel;
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reg [3:0] alu_op;
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reg [3:0] alu_op;
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| Line 113... |
Line 118... |
//
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//
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// state if 2'b00 then normal execution, sle instructin that need more than one clock
|
// state if 2'b00 then normal execution, sle instructin that need more than one clock
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// op instruction buffer
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// op instruction buffer
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reg [1:0] state;
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reg [1:0] state;
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reg [7:0] op;
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reg [7:0] op;
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reg stb_i;
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wire [7:0] op_cur;
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|
|
//
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//
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// if state = 2'b00 then read nex instruction
|
// if state = 2'b00 then read nex instruction
|
assign rd = !state[0] && !state[1] && !stb_o;
|
assign rd = !state[0] && !state[1] && !stb_o;
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|
|
assign istb = (!state[1]) || istb_t;
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assign istb = ((!state[1]) && stb_i) || istb_t;
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assign nop = (!state[1]) || istb_t;
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|
|
|
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assign stb_o = stb_buff || stbw;
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assign stb_o = stb_buff || stbw;
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assign we_o = we_buff;
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assign we_o = we_buff;
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//assign we_o = write_x || we_buff;
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//assign we_o = write_x || we_buff;
|
|
|
|
assign op_cur = (state[0] || state[1] || stb_o) ? op : op_in;
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|
|
|
assign pc_wait = !istb_t && rd;
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|
|
//
|
//
|
// main block
|
// main block
|
// case of instruction set control signals
|
// case of instruction set control signals
|
always @(op_in or eq or state or op or stb_o or istb_t)
|
always @(op_cur or eq or state or op or stb_o or istb_t)
|
begin
|
begin
|
if (stb_o) begin
|
if (stb_o) begin
|
ram_rd_sel = `OC8051_RRS_DC;
|
ram_rd_sel = `OC8051_RRS_DC;
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ram_wr_sel = `OC8051_RWS_DC;
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ram_wr_sel = `OC8051_RWS_DC;
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src_sel1 = `OC8051_ASS_DC;
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src_sel1 = `OC8051_ASS_DC;
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| Line 143... |
Line 156... |
cy_sel = `OC8051_CY_0;
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cy_sel = `OC8051_CY_0;
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pc_wr = `OC8051_PCW_N;
|
pc_wr = `OC8051_PCW_N;
|
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
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rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N;
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|
stb_i = 1'b1;
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|
bit_addr = 1'b0;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
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rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
end else begin
|
end else begin
|
case (state)
|
case (state)
|
2'b01: begin
|
2'b01: begin
|
casex (op)
|
casex (op_cur)
|
`OC8051_ACALL :begin
|
`OC8051_ACALL :begin
|
ram_rd_sel = `OC8051_RRS_DC;
|
ram_rd_sel = `OC8051_RRS_DC;
|
ram_wr_sel = `OC8051_RWS_SP;
|
ram_wr_sel = `OC8051_RWS_SP;
|
src_sel1 = `OC8051_ASS_IMM;
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src_sel1 = `OC8051_ASS_IMM;
|
src_sel2 = `OC8051_ASS_DC;
|
src_sel2 = `OC8051_ASS_DC;
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| Line 166... |
Line 181... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
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comp_sel = `OC8051_CSS_DC;
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comp_sel = `OC8051_CSS_DC;
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src_sel3 = `OC8051_AS3_DC;
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src_sel3 = `OC8051_AS3_DC;
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comp_sel = `OC8051_CSS_DC;
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comp_sel = `OC8051_CSS_DC;
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rmw = `OC8051_RMW_N;
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rmw = `OC8051_RMW_N;
|
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stb_i = 1'b1;
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bit_addr = 1'b0;
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bit_addr = 1'b0;
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wad2 = `OC8051_WAD_N;
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wad2 = `OC8051_WAD_N;
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rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
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|
|
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| Line 189... |
Line 205... |
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
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src_sel3 = `OC8051_AS3_DC;
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src_sel3 = `OC8051_AS3_DC;
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comp_sel = `OC8051_CSS_DC;
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comp_sel = `OC8051_CSS_DC;
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rmw = `OC8051_RMW_N;
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rmw = `OC8051_RMW_N;
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bit_addr = 1'b0;
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bit_addr = 1'b0;
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|
stb_i = 1'b1;
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wad2 = `OC8051_WAD_N;
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wad2 = `OC8051_WAD_N;
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rom_addr_sel = `OC8051_RAS_PC;
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rom_addr_sel = `OC8051_RAS_PC;
|
|
|
|
|
end
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end
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| Line 211... |
Line 228... |
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
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src_sel3 = `OC8051_AS3_DC;
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src_sel3 = `OC8051_AS3_DC;
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comp_sel = `OC8051_CSS_DC;
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comp_sel = `OC8051_CSS_DC;
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rmw = `OC8051_RMW_N;
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rmw = `OC8051_RMW_N;
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bit_addr = 1'b0;
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bit_addr = 1'b0;
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stb_i = 1'b1;
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wad2 = `OC8051_WAD_N;
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wad2 = `OC8051_WAD_N;
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rom_addr_sel = `OC8051_RAS_PC;
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rom_addr_sel = `OC8051_RAS_PC;
|
|
|
|
|
end
|
end
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`OC8051_MOVC_DP :begin
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|
ram_rd_sel = `OC8051_RRS_DC;
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ram_wr_sel = `OC8051_RWS_ACC;
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src_sel1 = `OC8051_ASS_IMM;
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src_sel2 = `OC8051_ASS_DC;
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alu_op = `OC8051_ALU_NOP;
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wr = 1'b1;
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psw_set = `OC8051_PS_NOT;
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cy_sel = `OC8051_CY_0;
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pc_wr = `OC8051_PCW_N;
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|
pc_sel = `OC8051_PIS_DC;
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imm_sel = `OC8051_IDS_OP1;
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src_sel3 = `OC8051_AS3_DP;
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comp_sel = `OC8051_CSS_DC;
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rmw = `OC8051_RMW_N; bit_addr = 1'b0;
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wad2 = `OC8051_WAD_N;
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rom_addr_sel = `OC8051_RAS_PC;
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|
|
|
|
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end
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`OC8051_MOVC_PC :begin
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ram_rd_sel = `OC8051_RRS_DC;
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ram_wr_sel = `OC8051_RWS_ACC;
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src_sel1 = `OC8051_ASS_IMM;
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src_sel2 = `OC8051_ASS_DC;
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alu_op = `OC8051_ALU_NOP;
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wr = 1'b1;
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|
psw_set = `OC8051_PS_NOT;
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cy_sel = `OC8051_CY_0;
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pc_wr = `OC8051_PCW_N;
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pc_sel = `OC8051_PIS_DC;
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imm_sel = `OC8051_IDS_OP1;
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src_sel3 = `OC8051_AS3_PC;
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comp_sel = `OC8051_CSS_DC;
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rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
wad2 = `OC8051_WAD_N;
|
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rom_addr_sel = `OC8051_RAS_PC;
|
|
|
|
end
|
|
`OC8051_DIV : begin
|
`OC8051_DIV : begin
|
ram_rd_sel = `OC8051_RRS_D;
|
ram_rd_sel = `OC8051_RRS_D;
|
ram_wr_sel = `OC8051_RWS_B;
|
ram_wr_sel = `OC8051_RWS_B;
|
src_sel1 = `OC8051_ASS_ACC;
|
src_sel1 = `OC8051_ASS_ACC;
|
src_sel2 = `OC8051_ASS_RAM;
|
src_sel2 = `OC8051_ASS_RAM;
|
| Line 269... |
Line 248... |
pc_wr = `OC8051_PCW_N;
|
pc_wr = `OC8051_PCW_N;
|
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
|
stb_i = 1'b1;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
wad2 = `OC8051_WAD_Y;
|
wad2 = `OC8051_WAD_Y;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
| Line 289... |
Line 269... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_Y;
|
wad2 = `OC8051_WAD_Y;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
default begin
|
default begin
|
| Line 308... |
Line 289... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
|
|
end
|
end
|
endcase
|
endcase
|
end
|
end
|
2'b10:
|
2'b10:
|
casex (op)
|
casex (op_cur)
|
`OC8051_CJNE_R : begin
|
`OC8051_CJNE_R : begin
|
ram_rd_sel = `OC8051_RRS_DC;
|
ram_rd_sel = `OC8051_RRS_DC;
|
ram_wr_sel = `OC8051_RWS_DC;
|
ram_wr_sel = `OC8051_RWS_DC;
|
src_sel1 = `OC8051_ASS_DC;
|
src_sel1 = `OC8051_ASS_DC;
|
src_sel2 = `OC8051_ASS_DC;
|
src_sel2 = `OC8051_ASS_DC;
|
| Line 332... |
Line 314... |
pc_sel = `OC8051_PIS_ALU;
|
pc_sel = `OC8051_PIS_ALU;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DES;
|
comp_sel = `OC8051_CSS_DES;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
|
|
end
|
end
|
| Line 352... |
Line 335... |
pc_sel = `OC8051_PIS_ALU;
|
pc_sel = `OC8051_PIS_ALU;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DES;
|
comp_sel = `OC8051_CSS_DES;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
|
|
end
|
end
|
| Line 372... |
Line 356... |
pc_sel = `OC8051_PIS_ALU;
|
pc_sel = `OC8051_PIS_ALU;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DES;
|
comp_sel = `OC8051_CSS_DES;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
|
|
end
|
end
|
| Line 392... |
Line 377... |
pc_sel = `OC8051_PIS_ALU;
|
pc_sel = `OC8051_PIS_ALU;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DES;
|
comp_sel = `OC8051_CSS_DES;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
|
|
end
|
end
|
| Line 412... |
Line 398... |
pc_sel = `OC8051_PIS_ALU;
|
pc_sel = `OC8051_PIS_ALU;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DES;
|
comp_sel = `OC8051_CSS_DES;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
|
|
end
|
end
|
| Line 432... |
Line 419... |
pc_sel = `OC8051_PIS_ALU;
|
pc_sel = `OC8051_PIS_ALU;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DES;
|
comp_sel = `OC8051_CSS_DES;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
|
|
end
|
end
|
| Line 452... |
Line 440... |
pc_sel = `OC8051_PIS_ALU;
|
pc_sel = `OC8051_PIS_ALU;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_BIT;
|
comp_sel = `OC8051_CSS_BIT;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
|
|
end
|
end
|
| Line 472... |
Line 461... |
pc_sel = `OC8051_PIS_ALU;
|
pc_sel = `OC8051_PIS_ALU;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_BIT;
|
comp_sel = `OC8051_CSS_BIT;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b1;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b1;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
|
|
end
|
end
|
| Line 492... |
Line 482... |
pc_sel = `OC8051_PIS_ALU;
|
pc_sel = `OC8051_PIS_ALU;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_CY;
|
comp_sel = `OC8051_CSS_CY;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
|
|
end
|
end
|
| Line 512... |
Line 503... |
pc_sel = `OC8051_PIS_ALU;
|
pc_sel = `OC8051_PIS_ALU;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_BIT;
|
comp_sel = `OC8051_CSS_BIT;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
|
|
end
|
end
|
| Line 532... |
Line 524... |
pc_sel = `OC8051_PIS_ALU;
|
pc_sel = `OC8051_PIS_ALU;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_BIT;
|
comp_sel = `OC8051_CSS_BIT;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
|
|
end
|
end
|
| Line 552... |
Line 545... |
pc_sel = `OC8051_PIS_ALU;
|
pc_sel = `OC8051_PIS_ALU;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_CY;
|
comp_sel = `OC8051_CSS_CY;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
|
|
end
|
end
|
| Line 572... |
Line 566... |
pc_sel = `OC8051_PIS_ALU;
|
pc_sel = `OC8051_PIS_ALU;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_AZ;
|
comp_sel = `OC8051_CSS_AZ;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
|
|
end
|
end
|
| Line 592... |
Line 587... |
pc_sel = `OC8051_PIS_ALU;
|
pc_sel = `OC8051_PIS_ALU;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_AZ;
|
comp_sel = `OC8051_CSS_AZ;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
|
|
end
|
end
|
`OC8051_MOVC_DP :begin
|
`OC8051_MOVC_DP :begin
|
ram_rd_sel = `OC8051_RRS_DC;
|
ram_rd_sel = `OC8051_RRS_DC;
|
ram_wr_sel = `OC8051_RWS_DC;
|
ram_wr_sel = `OC8051_RWS_ACC;
|
src_sel1 = `OC8051_ASS_DC;
|
src_sel1 = `OC8051_ASS_IMM;
|
src_sel2 = `OC8051_ASS_DC;
|
src_sel2 = `OC8051_ASS_DC;
|
alu_op = `OC8051_ALU_NOP;
|
alu_op = `OC8051_ALU_NOP;
|
wr = 1'b0;
|
wr = 1'b1;
|
psw_set = `OC8051_PS_NOT;
|
psw_set = `OC8051_PS_NOT;
|
cy_sel = `OC8051_CY_0;
|
cy_sel = `OC8051_CY_0;
|
pc_wr = `OC8051_PCW_N;
|
pc_wr = `OC8051_PCW_N;
|
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_OP1;
|
src_sel3 = `OC8051_AS3_DP;
|
src_sel3 = `OC8051_AS3_DP;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_DES;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
|
|
end
|
end
|
`OC8051_MOVC_PC :begin
|
`OC8051_MOVC_PC :begin
|
ram_rd_sel = `OC8051_RRS_DC;
|
ram_rd_sel = `OC8051_RRS_DC;
|
ram_wr_sel = `OC8051_RWS_DC;
|
ram_wr_sel = `OC8051_RWS_ACC;
|
src_sel1 = `OC8051_ASS_DC;
|
src_sel1 = `OC8051_ASS_IMM;
|
src_sel2 = `OC8051_ASS_DC;
|
src_sel2 = `OC8051_ASS_DC;
|
alu_op = `OC8051_ALU_NOP;
|
alu_op = `OC8051_ALU_NOP;
|
wr = 1'b0;
|
wr = 1'b1;
|
psw_set = `OC8051_PS_NOT;
|
psw_set = `OC8051_PS_NOT;
|
cy_sel = `OC8051_CY_0;
|
cy_sel = `OC8051_CY_0;
|
pc_wr = `OC8051_PCW_N;
|
pc_wr = `OC8051_PCW_N;
|
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_OP1;
|
src_sel3 = `OC8051_AS3_PC;
|
src_sel3 = `OC8051_AS3_PC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_DES;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_SJMP : begin
|
`OC8051_SJMP : begin
|
ram_rd_sel = `OC8051_RRS_DC;
|
ram_rd_sel = `OC8051_RRS_DC;
|
ram_wr_sel = `OC8051_RWS_DC;
|
ram_wr_sel = `OC8051_RWS_DC;
|
| Line 651... |
Line 649... |
pc_sel = `OC8051_PIS_ALU;
|
pc_sel = `OC8051_PIS_ALU;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_DIV : begin
|
`OC8051_DIV : begin
|
| Line 670... |
Line 669... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_MUL : begin
|
`OC8051_MUL : begin
|
| Line 690... |
Line 690... |
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
|
stb_i = 1'b1;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
default begin
|
default begin
|
ram_rd_sel = `OC8051_RRS_DC;
|
ram_rd_sel = `OC8051_RRS_DC;
|
| Line 708... |
Line 709... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
endcase
|
endcase
|
|
|
2'b11:
|
2'b11:
|
casex (op)
|
casex (op_cur)
|
|
`OC8051_MOVC_DP :begin
|
|
ram_rd_sel = `OC8051_RRS_DC;
|
|
ram_wr_sel = `OC8051_RWS_DC;
|
|
src_sel1 = `OC8051_ASS_DC;
|
|
src_sel2 = `OC8051_ASS_DC;
|
|
alu_op = `OC8051_ALU_NOP;
|
|
wr = 1'b0;
|
|
psw_set = `OC8051_PS_NOT;
|
|
cy_sel = `OC8051_CY_0;
|
|
pc_wr = `OC8051_PCW_N;
|
|
pc_sel = `OC8051_PIS_DC;
|
|
imm_sel = `OC8051_IDS_DC;
|
|
src_sel3 = `OC8051_AS3_DP;
|
|
comp_sel = `OC8051_CSS_DC;
|
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
|
wad2 = `OC8051_WAD_N;
|
|
rom_addr_sel = `OC8051_RAS_DES;
|
|
|
|
|
|
end
|
|
`OC8051_MOVC_PC :begin
|
|
ram_rd_sel = `OC8051_RRS_DC;
|
|
ram_wr_sel = `OC8051_RWS_DC;
|
|
src_sel1 = `OC8051_ASS_DC;
|
|
src_sel2 = `OC8051_ASS_DC;
|
|
alu_op = `OC8051_ALU_NOP;
|
|
wr = 1'b0;
|
|
psw_set = `OC8051_PS_NOT;
|
|
cy_sel = `OC8051_CY_0;
|
|
pc_wr = `OC8051_PCW_N;
|
|
pc_sel = `OC8051_PIS_DC;
|
|
imm_sel = `OC8051_IDS_DC;
|
|
src_sel3 = `OC8051_AS3_PC;
|
|
comp_sel = `OC8051_CSS_DC;
|
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
|
wad2 = `OC8051_WAD_N;
|
|
rom_addr_sel = `OC8051_RAS_DES;
|
|
|
|
end
|
`OC8051_CJNE_R : begin
|
`OC8051_CJNE_R : begin
|
ram_rd_sel = `OC8051_RRS_DC;
|
ram_rd_sel = `OC8051_RRS_DC;
|
ram_wr_sel = `OC8051_RWS_DC;
|
ram_wr_sel = `OC8051_RWS_DC;
|
src_sel1 = `OC8051_ASS_IMM;
|
src_sel1 = `OC8051_ASS_IMM;
|
src_sel2 = `OC8051_ASS_IMM;
|
src_sel2 = `OC8051_ASS_IMM;
|
| Line 731... |
Line 774... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_OP3_PCL;
|
imm_sel = `OC8051_IDS_OP3_PCL;
|
src_sel3 = `OC8051_AS3_PC;
|
src_sel3 = `OC8051_AS3_PC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_CJNE_I : begin
|
`OC8051_CJNE_I : begin
|
| Line 750... |
Line 794... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_OP3_PCL;
|
imm_sel = `OC8051_IDS_OP3_PCL;
|
src_sel3 = `OC8051_AS3_PC;
|
src_sel3 = `OC8051_AS3_PC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_CJNE_D : begin
|
`OC8051_CJNE_D : begin
|
| Line 769... |
Line 814... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_OP3_PCL;
|
imm_sel = `OC8051_IDS_OP3_PCL;
|
src_sel3 = `OC8051_AS3_PC;
|
src_sel3 = `OC8051_AS3_PC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_CJNE_C : begin
|
`OC8051_CJNE_C : begin
|
| Line 788... |
Line 834... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_OP3_PCL;
|
imm_sel = `OC8051_IDS_OP3_PCL;
|
src_sel3 = `OC8051_AS3_PC;
|
src_sel3 = `OC8051_AS3_PC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_DJNZ_R : begin
|
`OC8051_DJNZ_R : begin
|
| Line 807... |
Line 854... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_OP2_PCL;
|
imm_sel = `OC8051_IDS_OP2_PCL;
|
src_sel3 = `OC8051_AS3_PC;
|
src_sel3 = `OC8051_AS3_PC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_DJNZ_D : begin
|
`OC8051_DJNZ_D : begin
|
| Line 826... |
Line 874... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_OP3_PCL;
|
imm_sel = `OC8051_IDS_OP3_PCL;
|
src_sel3 = `OC8051_AS3_PC;
|
src_sel3 = `OC8051_AS3_PC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_RET : begin
|
`OC8051_RET : begin
|
| Line 845... |
Line 894... |
pc_sel = `OC8051_PIS_SP;
|
pc_sel = `OC8051_PIS_SP;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_RETI : begin
|
`OC8051_RETI : begin
|
| Line 864... |
Line 914... |
pc_sel = `OC8051_PIS_SP;
|
pc_sel = `OC8051_PIS_SP;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_DIV : begin
|
`OC8051_DIV : begin
|
| Line 883... |
Line 934... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_MUL : begin
|
`OC8051_MUL : begin
|
| Line 902... |
Line 954... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
default begin
|
default begin
|
| Line 921... |
Line 974... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
endcase
|
endcase
|
default: begin
|
default: begin
|
casex (op_in)
|
casex (op_cur)
|
`OC8051_ACALL :begin
|
`OC8051_ACALL :begin
|
ram_rd_sel = `OC8051_RRS_DC;
|
ram_rd_sel = `OC8051_RRS_DC;
|
ram_wr_sel = `OC8051_RWS_SP;
|
ram_wr_sel = `OC8051_RWS_SP;
|
src_sel1 = `OC8051_ASS_IMM;
|
src_sel1 = `OC8051_ASS_IMM;
|
src_sel2 = `OC8051_ASS_DC;
|
src_sel2 = `OC8051_ASS_DC;
|
| Line 943... |
Line 997... |
pc_wr = `OC8051_PCW_Y;
|
pc_wr = `OC8051_PCW_Y;
|
pc_sel = `OC8051_PIS_I11;
|
pc_sel = `OC8051_PIS_I11;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b0;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_AJMP : begin
|
`OC8051_AJMP : begin
|
| Line 962... |
Line 1017... |
pc_wr = `OC8051_PCW_Y;
|
pc_wr = `OC8051_PCW_Y;
|
pc_sel = `OC8051_PIS_I11;
|
pc_sel = `OC8051_PIS_I11;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b0;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_ADD_R : begin
|
`OC8051_ADD_R : begin
|
| Line 981... |
Line 1037... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_ADDC_R : begin
|
`OC8051_ADDC_R : begin
|
| Line 1000... |
Line 1057... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_ANL_R : begin
|
`OC8051_ANL_R : begin
|
| Line 1019... |
Line 1077... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_CJNE_R : begin
|
`OC8051_CJNE_R : begin
|
| Line 1038... |
Line 1097... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_OP2;
|
imm_sel = `OC8051_IDS_OP2;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b0;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_DEC_R : begin
|
`OC8051_DEC_R : begin
|
| Line 1057... |
Line 1117... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_DJNZ_R : begin
|
`OC8051_DJNZ_R : begin
|
| Line 1076... |
Line 1137... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
|
stb_i = 1'b0;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_INC_R : begin
|
`OC8051_INC_R : begin
|
| Line 1095... |
Line 1157... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_MOV_R : begin
|
`OC8051_MOV_R : begin
|
| Line 1114... |
Line 1177... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
|
|
| Line 1134... |
Line 1198... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_MOV_DR : begin
|
`OC8051_MOV_DR : begin
|
| Line 1153... |
Line 1218... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_MOV_CR : begin
|
`OC8051_MOV_CR : begin
|
| Line 1172... |
Line 1238... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_OP2;
|
imm_sel = `OC8051_IDS_OP2;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_MOV_RD : begin
|
`OC8051_MOV_RD : begin
|
| Line 1191... |
Line 1258... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_ORL_R : begin
|
`OC8051_ORL_R : begin
|
| Line 1210... |
Line 1278... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_SUBB_R : begin
|
`OC8051_SUBB_R : begin
|
| Line 1229... |
Line 1298... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_XCH_R : begin
|
`OC8051_XCH_R : begin
|
| Line 1248... |
Line 1318... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_Y;
|
wad2 = `OC8051_WAD_Y;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_XRL_R : begin
|
`OC8051_XRL_R : begin
|
| Line 1267... |
Line 1338... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
|
|
| Line 1288... |
Line 1360... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_ADDC_I : begin
|
`OC8051_ADDC_I : begin
|
| Line 1307... |
Line 1380... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_ANL_I : begin
|
`OC8051_ANL_I : begin
|
| Line 1326... |
Line 1400... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_CJNE_I : begin
|
`OC8051_CJNE_I : begin
|
| Line 1345... |
Line 1420... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_OP2;
|
imm_sel = `OC8051_IDS_OP2;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b0;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_DEC_I : begin
|
`OC8051_DEC_I : begin
|
| Line 1364... |
Line 1440... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_INC_I : begin
|
`OC8051_INC_I : begin
|
| Line 1383... |
Line 1460... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_MOV_I : begin
|
`OC8051_MOV_I : begin
|
| Line 1402... |
Line 1480... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_MOV_ID : begin
|
`OC8051_MOV_ID : begin
|
| Line 1421... |
Line 1500... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_MOV_AI : begin
|
`OC8051_MOV_AI : begin
|
| Line 1440... |
Line 1520... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_MOV_DI : begin
|
`OC8051_MOV_DI : begin
|
| Line 1459... |
Line 1540... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_MOV_CI : begin
|
`OC8051_MOV_CI : begin
|
| Line 1478... |
Line 1560... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_OP2;
|
imm_sel = `OC8051_IDS_OP2;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_MOVX_IA : begin
|
`OC8051_MOVX_IA : begin
|
| Line 1497... |
Line 1580... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_OP2;
|
imm_sel = `OC8051_IDS_OP2;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
end
|
end
|
`OC8051_MOVX_AI :begin
|
`OC8051_MOVX_AI :begin
|
ram_rd_sel = `OC8051_RRS_DC;
|
ram_rd_sel = `OC8051_RRS_DC;
|
| Line 1515... |
Line 1599... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_OP2;
|
imm_sel = `OC8051_IDS_OP2;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
end
|
end
|
`OC8051_ORL_I : begin
|
`OC8051_ORL_I : begin
|
ram_rd_sel = `OC8051_RRS_I;
|
ram_rd_sel = `OC8051_RRS_I;
|
| Line 1533... |
Line 1618... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_SUBB_I : begin
|
`OC8051_SUBB_I : begin
|
| Line 1552... |
Line 1638... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_XCH_I : begin
|
`OC8051_XCH_I : begin
|
| Line 1571... |
Line 1658... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_Y;
|
wad2 = `OC8051_WAD_Y;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_XCHD :begin
|
`OC8051_XCHD :begin
|
| Line 1590... |
Line 1678... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_Y;
|
wad2 = `OC8051_WAD_Y;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_XRL_I : begin
|
`OC8051_XRL_I : begin
|
| Line 1609... |
Line 1698... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
|
|
| Line 1630... |
Line 1720... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_ADD_C : begin
|
`OC8051_ADD_C : begin
|
| Line 1649... |
Line 1740... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_OP2;
|
imm_sel = `OC8051_IDS_OP2;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_ADDC_D : begin
|
`OC8051_ADDC_D : begin
|
| Line 1668... |
Line 1760... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_ADDC_C : begin
|
`OC8051_ADDC_C : begin
|
| Line 1687... |
Line 1780... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_OP2;
|
imm_sel = `OC8051_IDS_OP2;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_ANL_D : begin
|
`OC8051_ANL_D : begin
|
| Line 1706... |
Line 1800... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_ANL_C : begin
|
`OC8051_ANL_C : begin
|
| Line 1725... |
Line 1820... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_OP2;
|
imm_sel = `OC8051_IDS_OP2;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_ANL_DD : begin
|
`OC8051_ANL_DD : begin
|
| Line 1744... |
Line 1840... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_ANL_DC : begin
|
`OC8051_ANL_DC : begin
|
| Line 1763... |
Line 1860... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_OP3;
|
imm_sel = `OC8051_IDS_OP3;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_ANL_B : begin
|
`OC8051_ANL_B : begin
|
| Line 1782... |
Line 1880... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b1;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b1;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_ANL_NB : begin
|
`OC8051_ANL_NB : begin
|
| Line 1801... |
Line 1900... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b1;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b1;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_CJNE_D : begin
|
`OC8051_CJNE_D : begin
|
| Line 1820... |
Line 1920... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b0;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_CJNE_C : begin
|
`OC8051_CJNE_C : begin
|
| Line 1839... |
Line 1940... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_OP2;
|
imm_sel = `OC8051_IDS_OP2;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b0;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_CLR_A : begin
|
`OC8051_CLR_A : begin
|
| Line 1858... |
Line 1960... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_PC;
|
src_sel3 = `OC8051_AS3_PC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_CLR_C : begin
|
`OC8051_CLR_C : begin
|
| Line 1877... |
Line 1980... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_PC;
|
src_sel3 = `OC8051_AS3_PC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_CLR_B : begin
|
`OC8051_CLR_B : begin
|
| Line 1896... |
Line 2000... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_PC;
|
src_sel3 = `OC8051_AS3_PC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b1;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b1;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_CPL_A : begin
|
`OC8051_CPL_A : begin
|
| Line 1915... |
Line 2020... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_OP3; ///****
|
imm_sel = `OC8051_IDS_OP3; ///****
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_CPL_C : begin
|
`OC8051_CPL_C : begin
|
| Line 1934... |
Line 2040... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_OP3; ///*****
|
imm_sel = `OC8051_IDS_OP3; ///*****
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_CPL_B : begin
|
`OC8051_CPL_B : begin
|
| Line 1950... |
Line 2057... |
psw_set = `OC8051_PS_NOT;
|
psw_set = `OC8051_PS_NOT;
|
cy_sel = `OC8051_CY_RAM;
|
cy_sel = `OC8051_CY_RAM;
|
pc_wr = `OC8051_PCW_N;
|
pc_wr = `OC8051_PCW_N;
|
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_OP3; ///***
|
imm_sel = `OC8051_IDS_OP3; ///***
|
|
stb_i = 1'b1;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b1;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
| Line 1972... |
Line 2080... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_DEC_A : begin
|
`OC8051_DEC_A : begin
|
| Line 1991... |
Line 2100... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_DEC_D : begin
|
`OC8051_DEC_D : begin
|
| Line 2010... |
Line 2120... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_DIV : begin
|
`OC8051_DIV : begin
|
| Line 2029... |
Line 2140... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b0;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_DJNZ_D : begin
|
`OC8051_DJNZ_D : begin
|
| Line 2048... |
Line 2160... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
|
stb_i = 1'b0;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_INC_A : begin
|
`OC8051_INC_A : begin
|
| Line 2067... |
Line 2180... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_INC_D : begin
|
`OC8051_INC_D : begin
|
| Line 2086... |
Line 2200... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_INC_DP : begin
|
`OC8051_INC_DP : begin
|
| Line 2105... |
Line 2220... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DP;
|
src_sel3 = `OC8051_AS3_DP;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_JB : begin
|
`OC8051_JB : begin
|
| Line 2124... |
Line 2240... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_OP3_PCL;
|
imm_sel = `OC8051_IDS_OP3_PCL;
|
src_sel3 = `OC8051_AS3_PC;
|
src_sel3 = `OC8051_AS3_PC;
|
comp_sel = `OC8051_CSS_BIT;
|
comp_sel = `OC8051_CSS_BIT;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b1;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b1;
|
|
stb_i = 1'b0;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_JBC :begin
|
`OC8051_JBC :begin
|
| Line 2143... |
Line 2260... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_OP3_PCL;
|
imm_sel = `OC8051_IDS_OP3_PCL;
|
src_sel3 = `OC8051_AS3_PC;
|
src_sel3 = `OC8051_AS3_PC;
|
comp_sel = `OC8051_CSS_BIT;
|
comp_sel = `OC8051_CSS_BIT;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b1;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b1;
|
|
stb_i = 1'b0;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_JC : begin
|
`OC8051_JC : begin
|
| Line 2162... |
Line 2280... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_OP2_PCL;
|
imm_sel = `OC8051_IDS_OP2_PCL;
|
src_sel3 = `OC8051_AS3_PC;
|
src_sel3 = `OC8051_AS3_PC;
|
comp_sel = `OC8051_CSS_CY;
|
comp_sel = `OC8051_CSS_CY;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b0;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_JMP : begin
|
`OC8051_JMP : begin
|
| Line 2181... |
Line 2300... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DP;
|
src_sel3 = `OC8051_AS3_DP;
|
comp_sel = `OC8051_CSS_BIT;
|
comp_sel = `OC8051_CSS_BIT;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b0;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_JNB : begin
|
`OC8051_JNB : begin
|
| Line 2200... |
Line 2320... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_OP3_PCL;
|
imm_sel = `OC8051_IDS_OP3_PCL;
|
src_sel3 = `OC8051_AS3_PC;
|
src_sel3 = `OC8051_AS3_PC;
|
comp_sel = `OC8051_CSS_BIT;
|
comp_sel = `OC8051_CSS_BIT;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b0;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_JNC : begin
|
`OC8051_JNC : begin
|
| Line 2219... |
Line 2340... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_OP2_PCL;
|
imm_sel = `OC8051_IDS_OP2_PCL;
|
src_sel3 = `OC8051_AS3_PC;
|
src_sel3 = `OC8051_AS3_PC;
|
comp_sel = `OC8051_CSS_CY;
|
comp_sel = `OC8051_CSS_CY;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b0;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_JNZ :begin
|
`OC8051_JNZ :begin
|
| Line 2238... |
Line 2360... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_OP2_PCL;
|
imm_sel = `OC8051_IDS_OP2_PCL;
|
src_sel3 = `OC8051_AS3_PC;
|
src_sel3 = `OC8051_AS3_PC;
|
comp_sel = `OC8051_CSS_AZ;
|
comp_sel = `OC8051_CSS_AZ;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b0;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_JZ : begin
|
`OC8051_JZ : begin
|
| Line 2258... |
Line 2381... |
imm_sel = `OC8051_IDS_OP2_PCL;
|
imm_sel = `OC8051_IDS_OP2_PCL;
|
src_sel3 = `OC8051_AS3_PC;
|
src_sel3 = `OC8051_AS3_PC;
|
comp_sel = `OC8051_CSS_AZ;
|
comp_sel = `OC8051_CSS_AZ;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
|
stb_i = 1'b0;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_LCALL :begin
|
`OC8051_LCALL :begin
|
ram_rd_sel = `OC8051_RRS_DC;
|
ram_rd_sel = `OC8051_RRS_DC;
|
| Line 2276... |
Line 2400... |
pc_wr = `OC8051_PCW_Y;
|
pc_wr = `OC8051_PCW_Y;
|
pc_sel = `OC8051_PIS_I16;
|
pc_sel = `OC8051_PIS_I16;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b0;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_LJMP : begin
|
`OC8051_LJMP : begin
|
| Line 2295... |
Line 2420... |
pc_wr = `OC8051_PCW_Y;
|
pc_wr = `OC8051_PCW_Y;
|
pc_sel = `OC8051_PIS_I16;
|
pc_sel = `OC8051_PIS_I16;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b0;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_MOV_D : begin
|
`OC8051_MOV_D : begin
|
| Line 2314... |
Line 2440... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_MOV_C : begin
|
`OC8051_MOV_C : begin
|
| Line 2333... |
Line 2460... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_OP2;
|
imm_sel = `OC8051_IDS_OP2;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
|
|
| Line 2353... |
Line 2481... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_MOV_DD : begin
|
`OC8051_MOV_DD : begin
|
| Line 2372... |
Line 2501... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_OP2;
|
imm_sel = `OC8051_IDS_OP2;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_MOV_CD : begin
|
`OC8051_MOV_CD : begin
|
| Line 2391... |
Line 2521... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_OP3;
|
imm_sel = `OC8051_IDS_OP3;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_MOV_BC : begin
|
`OC8051_MOV_BC : begin
|
| Line 2410... |
Line 2541... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b1;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b1;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_MOV_CB : begin
|
`OC8051_MOV_CB : begin
|
| Line 2429... |
Line 2561... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_OP3;
|
imm_sel = `OC8051_IDS_OP3;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b1;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b1;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_MOV_DP : begin ///***
|
`OC8051_MOV_DP : begin ///***
|
| Line 2448... |
Line 2581... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_OP3_OP2;
|
imm_sel = `OC8051_IDS_OP3_OP2;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_MOVC_DP :begin
|
`OC8051_MOVC_DP :begin
|
| Line 2467... |
Line 2601... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DP;
|
src_sel3 = `OC8051_AS3_DP;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b0;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_MOVC_PC : begin
|
`OC8051_MOVC_PC : begin
|
| Line 2486... |
Line 2621... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_PCL;
|
imm_sel = `OC8051_IDS_PCL;
|
src_sel3 = `OC8051_AS3_PC;
|
src_sel3 = `OC8051_AS3_PC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b0;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_MOVX_PA : begin
|
`OC8051_MOVX_PA : begin
|
| Line 2505... |
Line 2641... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_OP2;
|
imm_sel = `OC8051_IDS_OP2;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
end
|
end
|
`OC8051_MOVX_AP : begin
|
`OC8051_MOVX_AP : begin
|
ram_rd_sel = `OC8051_RRS_DC;
|
ram_rd_sel = `OC8051_RRS_DC;
|
| Line 2523... |
Line 2660... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
end
|
end
|
`OC8051_MUL : begin
|
`OC8051_MUL : begin
|
ram_rd_sel = `OC8051_RRS_D;
|
ram_rd_sel = `OC8051_RRS_D;
|
| Line 2541... |
Line 2679... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b0;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_ORL_D : begin
|
`OC8051_ORL_D : begin
|
| Line 2560... |
Line 2699... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_ORL_C : begin
|
`OC8051_ORL_C : begin
|
| Line 2579... |
Line 2719... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_OP2;
|
imm_sel = `OC8051_IDS_OP2;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_ORL_AD : begin
|
`OC8051_ORL_AD : begin
|
| Line 2598... |
Line 2739... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_ORL_CD : begin
|
`OC8051_ORL_CD : begin
|
| Line 2617... |
Line 2759... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_OP3;
|
imm_sel = `OC8051_IDS_OP3;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_ORL_B : begin
|
`OC8051_ORL_B : begin
|
| Line 2636... |
Line 2779... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b1;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b1;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_ORL_NB : begin
|
`OC8051_ORL_NB : begin
|
| Line 2655... |
Line 2799... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b1;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b1;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_POP : begin
|
`OC8051_POP : begin
|
| Line 2674... |
Line 2819... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_PUSH : begin
|
`OC8051_PUSH : begin
|
| Line 2693... |
Line 2839... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_RET : begin
|
`OC8051_RET : begin
|
| Line 2712... |
Line 2859... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b0;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_RETI : begin
|
`OC8051_RETI : begin
|
| Line 2731... |
Line 2879... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b0;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_RL : begin
|
`OC8051_RL : begin
|
| Line 2750... |
Line 2899... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_RLC : begin
|
`OC8051_RLC : begin
|
| Line 2769... |
Line 2919... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_RR : begin
|
`OC8051_RR : begin
|
| Line 2788... |
Line 2939... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_RRC : begin
|
`OC8051_RRC : begin
|
| Line 2807... |
Line 2959... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_SETB_C : begin
|
`OC8051_SETB_C : begin
|
| Line 2826... |
Line 2979... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_PC;
|
src_sel3 = `OC8051_AS3_PC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_SETB_B : begin
|
`OC8051_SETB_B : begin
|
| Line 2845... |
Line 2999... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_PC;
|
src_sel3 = `OC8051_AS3_PC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b1;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b1;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_SJMP : begin
|
`OC8051_SJMP : begin
|
| Line 2864... |
Line 3019... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_OP2_PCL;
|
imm_sel = `OC8051_IDS_OP2_PCL;
|
src_sel3 = `OC8051_AS3_PC;
|
src_sel3 = `OC8051_AS3_PC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b0;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_SUBB_D : begin
|
`OC8051_SUBB_D : begin
|
| Line 2883... |
Line 3039... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_SUBB_C : begin
|
`OC8051_SUBB_C : begin
|
| Line 2902... |
Line 3059... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_OP2;
|
imm_sel = `OC8051_IDS_OP2;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_SWAP : begin
|
`OC8051_SWAP : begin
|
| Line 2921... |
Line 3079... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_Y;
|
wad2 = `OC8051_WAD_Y;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_XCH_D : begin
|
`OC8051_XCH_D : begin
|
| Line 2940... |
Line 3099... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_Y;
|
wad2 = `OC8051_WAD_Y;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_XRL_D : begin
|
`OC8051_XRL_D : begin
|
| Line 2959... |
Line 3119... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_XRL_C : begin
|
`OC8051_XRL_C : begin
|
| Line 2978... |
Line 3139... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_OP2;
|
imm_sel = `OC8051_IDS_OP2;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_XRL_AD : begin
|
`OC8051_XRL_AD : begin
|
| Line 2997... |
Line 3159... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
imm_sel = `OC8051_IDS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
`OC8051_XRL_CD : begin
|
`OC8051_XRL_CD : begin
|
| Line 3016... |
Line 3179... |
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
imm_sel = `OC8051_IDS_OP3;
|
imm_sel = `OC8051_IDS_OP3;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_Y; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
default: begin
|
default: begin
|
| Line 3035... |
Line 3199... |
pc_wr = `OC8051_PCW_N;
|
pc_wr = `OC8051_PCW_N;
|
pc_sel = `OC8051_PIS_DC;
|
pc_sel = `OC8051_PIS_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
src_sel3 = `OC8051_AS3_DC;
|
comp_sel = `OC8051_CSS_DC;
|
comp_sel = `OC8051_CSS_DC;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
rmw = `OC8051_RMW_N; bit_addr = 1'b0;
|
|
stb_i = 1'b1;
|
wad2 = `OC8051_WAD_N;
|
wad2 = `OC8051_WAD_N;
|
rom_addr_sel = `OC8051_RAS_PC;
|
rom_addr_sel = `OC8051_RAS_PC;
|
|
|
end
|
end
|
|
|
| Line 3059... |
Line 3224... |
always @(posedge clk or posedge rst)
|
always @(posedge clk or posedge rst)
|
begin
|
begin
|
if (rst)
|
if (rst)
|
state <= #1 2'b01;
|
state <= #1 2'b01;
|
else if (istb_t && !iack) begin
|
else if (istb_t && !iack) begin
|
state <= #1 2'b01;
|
state <= #1 2'b10;
|
end else begin
|
end else begin
|
case (state)
|
case (state)
|
2'b10: state <= #1 2'b01;
|
2'b10: state <= #1 2'b01;
|
2'b11: state <= #1 2'b10;
|
2'b11: state <= #1 2'b10;
|
2'b00:
|
2'b00:
|
| Line 3076... |
Line 3241... |
`OC8051_CJNE_C : state <= #1 2'b11;
|
`OC8051_CJNE_C : state <= #1 2'b11;
|
`OC8051_LJMP : state <= #1 2'b01;
|
`OC8051_LJMP : state <= #1 2'b01;
|
`OC8051_DJNZ_R :state <= #1 2'b11;
|
`OC8051_DJNZ_R :state <= #1 2'b11;
|
`OC8051_DJNZ_D :state <= #1 2'b11;
|
`OC8051_DJNZ_D :state <= #1 2'b11;
|
`OC8051_LCALL :state <= #1 2'b01;
|
`OC8051_LCALL :state <= #1 2'b01;
|
`OC8051_MOVC_DP :state <= #1 2'b10;
|
`OC8051_MOVC_DP :state <= #1 2'b11;
|
`OC8051_MOVC_PC :state <= #1 2'b10;
|
`OC8051_MOVC_PC :state <= #1 2'b11;
|
`OC8051_RET : state <= #1 2'b11;
|
`OC8051_RET : state <= #1 2'b11;
|
`OC8051_RETI : state <= #1 2'b11;
|
`OC8051_RETI : state <= #1 2'b11;
|
`OC8051_SJMP : state <= #1 2'b10;
|
`OC8051_SJMP : state <= #1 2'b10;
|
`OC8051_JB : state <= #1 2'b10;
|
`OC8051_JB : state <= #1 2'b10;
|
`OC8051_JBC : state <= #1 2'b10;
|
`OC8051_JBC : state <= #1 2'b10;
|
| Line 3196... |
Line 3361... |
|
|
always @(posedge clk or posedge rst)
|
always @(posedge clk or posedge rst)
|
begin
|
begin
|
if (rst)
|
if (rst)
|
istb_t <= #1 1'b0;
|
istb_t <= #1 1'b0;
|
else if (((op_in == `OC8051_MOVC_DP) || (op_in == `OC8051_MOVC_PC)) && !ea)
|
|
istb_t <= #1 1'b1;
|
|
else if (iack)
|
else if (iack)
|
istb_t <= #1 1'b0;
|
istb_t <= #1 1'b0;
|
|
else if (((op_cur== `OC8051_MOVC_DP) || (op_cur == `OC8051_MOVC_PC)) && !ea)
|
|
istb_t <= #1 1'b1;
|
end
|
end
|
|
|
endmodule
|
endmodule
|
|
|
|
|
