Macintosh-HW/MacPlus_MiSTer
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Apply CPU and memory config only upon reset.

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sorgelig 2021-03-21 02:55:20 +08:00
parent f64070f96a
commit 21f6ad0db6
1 changed files with 14 additions and 19 deletions
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33
MacPlus.sv
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@ -206,30 +206,27 @@ localparam CONF_STR = {
"F1,DSK,Mount Pri Floppy;",
"F2,DSK,Mount Sec Floppy;",
"-;",
"S0,IMGVHD,Mount SCSI6;",
"S1,IMGVHD,Mount SCSI2;",
"S0,IMGVHD,Mount SCSI-6;",
"S1,IMGVHD,Mount SCSI-2;",
"-;",
"O78,Aspect ratio,Original,Full Screen,[ARC1],[ARC2];",
"OBC,Scale,Normal,V-Integer,Narrower HV-Integer,Wider HV-Integer;",
"-;",
"O4,Memory,1MB,4MB;",
"O5,Speed,8MHz,16MHz;",
"ODE,CPU,FX68K-68000,TG68K-68010,TG68K-68020;",
"ODE,CPU,68000,68010,68020;",
"O4,Memory,1MB,4MB;",
"-;",
"R0,Reset;",
"R0,Reset & Apply CPU+Memory;",
"V,v",`BUILD_DATE
};
wire status_mem = status[4];
wire status_turbo = status[5];
wire [1:0] status_cpu = status[14:13];
wire status_reset = status[0];
wire status_turbo = status[5];
//////////////////// CLOCKS ///////////////////
wire clk_sys, clk_mem;
wire pll_locked;
pll pll
(
.refclk(CLK_50M),
@ -238,24 +235,22 @@ pll pll
.locked(pll_locked)
);
reg n_reset = 0;
reg last_mem_config;
reg [1:0] last_cpu_config;
reg status_mem;
reg [1:0] status_cpu;
reg n_reset = 0;
always @(posedge clk_sys) begin
reg [15:0] rst_cnt;
if (clk8_en_p) begin
last_mem_config <= status_mem;
last_cpu_config <= status_cpu;
// various sources can reset the mac
if(!pll_locked || status_reset || buttons[1] || RESET ||
(last_mem_config != status_mem) || (last_cpu_config != status_cpu) || !_cpuReset_o) begin
if(~pll_locked || status[0] || buttons[1] || RESET || ~_cpuReset_o) begin
rst_cnt <= '1;
n_reset <= 0;
end
else if(rst_cnt) begin
rst_cnt <= rst_cnt - 1'd1;
rst_cnt <= rst_cnt - 1'd1;
status_mem <= status[4];
status_cpu <= status[14:13];
end
else begin
n_reset <= 1;