X-Git-Url: http://git.joshuawise.com/fpgaboy.git/blobdiff_plain/5509558d05f30339f3393f02f67e8854cbe25a00..5bac4cf0a60acac6826eb3215e1526d48ba8f7ac:/GBZ80Core.v diff --git a/GBZ80Core.v b/GBZ80Core.v index 6039b30..f438339 100644 --- a/GBZ80Core.v +++ b/GBZ80Core.v @@ -107,19 +107,11 @@ `define INSN_alu_SCF 3'b110 `define INSN_alu_CCF 3'b111 -`define EXEC_INC_PC \ - `_PC <= `_PC + 1 -`define EXEC_NEXTADDR_PCINC \ - address <= `_PC + 1 -`define EXEC_NEWCYCLE \ - begin newcycle <= 1; rd <= 1; wr <= 0; end -`define EXEC_WRITE(ad, da) \ - begin address <= (ad); \ - wdata <= (da); \ - wr <= 1; end -`define EXEC_READ(ad) \ - begin address <= (ad); \ - rd <= 1; end +`define EXEC_INC_PC `_PC <= `_PC + 1; +`define EXEC_NEXTADDR_PCINC address <= `_PC + 1; +`define EXEC_NEWCYCLE begin newcycle <= 1; rd <= 1; wr <= 0; end +`define EXEC_WRITE(ad, da) begin address <= (ad); wdata <= (da); wr <= 1; end end +`define EXEC_READ(ad) begin address <= (ad); rd <= 1; end end module GBZ80Core( input clk, @@ -217,19 +209,10 @@ module GBZ80Core( state <= `STATE_EXECUTE; end `STATE_EXECUTE: begin - casex (opcode) `define EXECUTE `include "allinsns.v" `undef EXECUTE - `INSN_DI: begin - `EXEC_NEWCYCLE; - `EXEC_INC_PC; - end - `INSN_EI: begin - `EXEC_NEWCYCLE; - `EXEC_INC_PC; - end default: $stop; endcase