From: Marius Gavrilescu Date: Mon, 19 Feb 2018 13:48:32 +0000 (+0000) Subject: Pull the gcram outside the gc X-Git-Url: http://git.ieval.ro/?a=commitdiff_plain;h=44b73af51bca05eb26fd1557a192eed779fc065e;p=yule.git Pull the gcram outside the gc --- diff --git a/gc.v b/gc.v index ceae7d7..d452178 100644 --- a/gc.v +++ b/gc.v @@ -1,6 +1,6 @@ `include "gcram.v" -module GC (input clk, input mclk, input [15:0] Ein, output [15:0] Eout, input [3:0] gcop, output [5:0] ostate, output conn_et, output conn_ea, output step_eval, output [15:0] result); +module GC (input clk, input mclk, input [15:0] Ein, output [15:0] Eout, input [3:0] gcop, output [5:0] ostate, output conn_et, output conn_ea, output step_eval, output ram_we, output [12:0] ram_addr, output [15:0] ram_di, input [15:0] ram_do); reg [15:0] rom_output; reg [5:0] gostate = 6'o0; reg [5:0] gnstate; @@ -12,7 +12,7 @@ module GC (input clk, input mclk, input [15:0] Ein, output [15:0] Eout, input [3 wire ga_zero_disp = rom_output[15]; wire gcop_disp = rom_output[14]; - wire write = rom_output[13]; + assign ram_we = rom_output[13]; wire adr = rom_output[12]; wire rdR = rom_output[11]; wire rdQ = rom_output[10]; @@ -99,7 +99,8 @@ module GC (input clk, input mclk, input [15:0] Ein, output [15:0] Eout, input [3 reg [12:0] A; // latched address - wire [15:0] I; + assign ram_addr = A; + assign ram_di = S; wire [15:0] G; wire [15:0] Gout; @@ -108,7 +109,7 @@ module GC (input clk, input mclk, input [15:0] Ein, output [15:0] Eout, input [3 wire [15:0] GfromQ = rdQ ? Q : 0; wire [15:0] GfromP = rdP ? {3'b0, P} : 0; wire [15:0] GfromP_plus = rdP_plus ? {3'b0, P + 1} : 0; - wire [15:0] GfromI = conn_i ? I : 0; + wire [15:0] GfromI = conn_i ? ram_do : 0; wire [12:0] GAfromE = conn_ea ? Ein_latched[12:0] : 0; wire [2:0] GTfromE = conn_et ? Ein_latched[15:13] : 0; wire [15:0] GfromE = {GTfromE, GAfromE}; @@ -119,8 +120,6 @@ module GC (input clk, input mclk, input [15:0] Ein, output [15:0] Eout, input [3 assign Eout[12:0] = conn_ea ? Gout[12:0] : 0; assign Eout[15:13] = conn_et ? Gout[15:13] : 0; - GCRAM gcram (.clk(mclk), .we(write), .addr(A), .do(I), .di(S), .result(result)); - always @ (posedge clk) begin if (ldS) S = G; if (ldP) P <= G[12:0]; diff --git a/lisp_processor.v b/lisp_processor.v index 827fbc7..7be974b 100644 --- a/lisp_processor.v +++ b/lisp_processor.v @@ -50,7 +50,14 @@ module PROCESSOR (input clk, output [4:0] led, output uart_tx, input uart_rx); wire step_eval; - GC gc (.clk(gc_clock), .mclk(clk), .Ein(E1), .Eout(E2), .gcop(gcop), .ostate(gostate), .step_eval(step_eval), .conn_ea(conn_ea), .conn_et(conn_et), .result(result)); + wire ram_we; + wire [12:0] ram_addr; + wire [15:0] ram_di; + wire [15:0] ram_do; + + GCRAM gcram (.clk(clk), .we(ram_we), .addr(ram_addr), .di(ram_di), .do(ram_do), .result(result)); + + GC gc (.clk(gc_clock), .mclk(clk), .Ein(E1), .Eout(E2), .gcop(gcop), .ostate(gostate), .step_eval(step_eval), .conn_ea(conn_ea), .conn_et(conn_et), .ram_we(ram_we), .ram_addr(ram_addr), .ram_di(ram_di), .ram_do(ram_do)); EVAL eval (.clk(eval_clock), .mclk(clk), .Ein(E2), .Eout(E1), .gcop(gcop), .ostate(eostate), .conn_ea(conn_ea), .conn_et(conn_et));