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Code Issues Releases Wiki Activity

Crater Raider: add NVRAM save

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This commit is contained in:
Gyorgy Szombathelyi
2021-04-21 12:26:27 +02:00
parent ef227c1d96
commit 161549a92f
2 changed files with 31 additions and 17 deletions
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22
Arcade_MiST/Midway MCR Scroll/CraterRaider_MiST/rtl/CraterRaider_MiST.sv
View File

@@ -53,6 +53,7 @@ localparam CONF_STR = {
"O5,Blend,Off,On;",
"O6,Service,Off,On;",
"O7,Spinner Speed,Low,High;",
"R2048,Save NVRAM;",
"T0,Reset;",
"V,v1.1.",`BUILD_DATE
};
@@ -62,7 +63,7 @@ wire blend = status[5];
wire service = status[6];
wire spinspd = status[7];
assign LED = ~ioctl_downl;
assign LED = ~(ioctl_downl | ioctl_upl);
assign SDRAM_CLK = clk_mem;
assign SDRAM_CKE = 1;
@@ -117,25 +118,30 @@ wire [15:0] snd_do;
wire [14:0] sp_addr;
wire [31:0] sp_do;
wire ioctl_downl;
wire ioctl_upl;
wire [7:0] ioctl_index;
wire ioctl_wr;
wire [24:0] ioctl_addr;
wire [7:0] ioctl_dout;
wire [7:0] ioctl_din;
data_io data_io(
.clk_sys ( clk_sys ),
.SPI_SCK ( SPI_SCK ),
.SPI_SS2 ( SPI_SS2 ),
.SPI_DI ( SPI_DI ),
.SPI_DO ( SPI_DO ),
.ioctl_download( ioctl_downl ),
.ioctl_upload ( ioctl_upl ),
.ioctl_index ( ioctl_index ),
.ioctl_wr ( ioctl_wr ),
.ioctl_addr ( ioctl_addr ),
.ioctl_dout ( ioctl_dout )
.ioctl_dout ( ioctl_dout ),
.ioctl_din ( ioctl_din )
);
wire [24:0] sp_ioctl_addr = ioctl_addr - 17'he000; // sound cpu prg offset
wire [24:0] dl_addr = ioctl_addr - 18'h2e000; // background + char grfx offset
wire [24:0] dl_addr = ioctl_addr - (ioctl_index == 0 ? 18'h2e000 : 18'h0); // background + char grfx offset
reg port1_req, port2_req;
sdram sdram(
@@ -176,7 +182,7 @@ always @(posedge clk_sys) begin
ioctl_wr_last <= ioctl_wr;
if (ioctl_downl) begin
if (~ioctl_wr_last && ioctl_wr) begin
if (~ioctl_wr_last && ioctl_wr && ioctl_index == 0) begin
port1_req <= ~port1_req;
port2_req <= ~port2_req;
end
@@ -249,9 +255,11 @@ Crater_Raider Crater_Raider(
.snd_rom_do ( snd_addr[0] ? snd_do[15:8] : snd_do[7:0] ),
.sp_addr ( sp_addr ),
.sp_graphx32_do ( sp_do ),
.dl_addr ( dl_addr ),
.dl_wr ( ioctl_wr ),
.dl_data ( ioctl_dout )
.dl_addr ( dl_addr ),
.dl_data ( ioctl_dout ),
.dl_wr ( ioctl_wr && ioctl_index == 0 ),
.up_data ( ioctl_din ),
.cmos_wr ( ioctl_wr && ioctl_index == 8'hff )
);
wire vs_out;

26
Arcade_MiST/Midway MCR Scroll/CraterRaider_MiST/rtl/crater_raider.vhd
View File

@@ -172,10 +172,11 @@ port(
sp_addr : out std_logic_vector(14 downto 0);
sp_graphx32_do : in std_logic_vector(31 downto 0);
dl_addr : in std_logic_vector(15 downto 0);
dl_data : in std_logic_vector( 7 downto 0);
dl_wr : in std_logic;
dl_addr : in std_logic_vector(15 downto 0);
dl_data : in std_logic_vector( 7 downto 0);
dl_wr : in std_logic;
up_data : out std_logic_vector(7 downto 0);
cmos_wr : in std_logic;
dbg_cpu_addr : out std_logic_vector(15 downto 0)
);
end crater_raider;
@@ -846,14 +847,19 @@ port map (
cpu_rom_addr <= cpu_addr(15 downto 0);
-- working RAM F000-F7FF 2Ko
wram : entity work.cmos_ram
wram : entity work.dpram
generic map( dWidth => 8, aWidth => 11)
port map(
clk => clock_vidn,
we => wram_we,
addr => cpu_addr(10 downto 0),
d => cpu_do,
q => wram_do
clk_a => clock_vidn,
addr_a => cpu_addr(10 downto 0),
d_a => cpu_do,
we_a => wram_we,
q_a => wram_do,
clk_b => clock_vid,
we_b => cmos_wr,
addr_b => dl_addr(10 downto 0),
d_b => dl_data,
q_b => up_data
);
-- char RAM E800-EBFF 1Ko + mirroring 0400