Macintosh-HW/Warp-SE
1
0
Fork 0
mirror of https://github.com/garrettsworkshop/Warp-SE.git synced 2024-11-25 13:33:58 +00:00
Code Issues Projects Releases Wiki Activity

Added RAM/ROM address multiplexing

Browse Source
This commit is contained in:
Zane Kaminski 2022-02-14 16:38:27 -05:00
parent 947f32f5d6
commit 4c67177866
1 changed files with 10 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
cpld/RAM.v
View File

@ -33,7 +33,16 @@ module RAM(
assign RA[11] = A[19]; assign RA[11] = A[19];
assign RA[10] = A[21]; assign RA[10] = A[21];
assign RA[9:0] = RASEL ? {A[20], A[09:01]} : {A[19], A[18:10]}; assign RA[09] = RASEL ? A[20] : A[19];
assign RA[08] = (RASEL && RAMSEL) ? A[09] : A[18];
assign RA[07] = RASEL ? A[08] : A[17];
assign RA[06] = RASEL ? A[07] : A[16];
assign RA[05] = RASEL ? A[06] : A[15];
assign RA[04] = RASEL ? A[05] : A[14];
assign RA[03] = RASEL ? A[04] : A[13];
assign RA[02] = RASEL ? A[03] : A[12];
assign RA[01] = RASEL ? A[02] : A[11];
assign RA[00] = RASEL ? A[01] : A[10];
always @(posedge CLK) begin always @(posedge CLK) begin
if (~BACT) Once <= 0; if (~BACT) Once <= 0;