X-Git-Url: http://git.joshuawise.com/fpgaboy.git/blobdiff_plain/df770340caf8ecd26a55179484edb507082bd5c6..77ab69d7bb0902e6ebf0994159ed2205f8413e34:/insn_jp-jpcc.v diff --git a/insn_jp-jpcc.v b/insn_jp-jpcc.v index 2b2e52b..7c8fb22 100644 --- a/insn_jp-jpcc.v +++ b/insn_jp-jpcc.v @@ -2,30 +2,26 @@ `INSN_JP_imm,`INSN_JPCC_imm: begin case (cycle) 0: begin - `EXEC_INC_PC; - `EXEC_NEXTADDR_PCINC; - rd <= 1; + `EXEC_INC_PC + `EXEC_READ(`_PC + 1) end 1: begin - `EXEC_INC_PC; - `EXEC_NEXTADDR_PCINC; - rd <= 1; + `EXEC_INC_PC + `EXEC_READ(`_PC + 1) end 2: begin - `EXEC_INC_PC; + `EXEC_INC_PC if (!opcode[0]) begin // i.e., JP cc,nn /* We need to check the condition code to bail out. */ case (opcode[4:3]) - `INSN_cc_NZ: if (registers[`REG_F][7]) begin `EXEC_NEWCYCLE; end - `INSN_cc_Z: if (~registers[`REG_F][7]) begin `EXEC_NEWCYCLE; end - `INSN_cc_NC: if (registers[`REG_F][4]) begin `EXEC_NEWCYCLE; end - `INSN_cc_C: if (~registers[`REG_F][4]) begin `EXEC_NEWCYCLE; end + `INSN_cc_NZ: if (`_F[7]) `EXEC_NEWCYCLE + `INSN_cc_Z: if (~`_F[7]) `EXEC_NEWCYCLE + `INSN_cc_NC: if (`_F[4]) `EXEC_NEWCYCLE + `INSN_cc_C: if (~`_F[4]) `EXEC_NEWCYCLE endcase end end - 3: begin - `EXEC_NEWCYCLE; - end + 3: `EXEC_NEWCYCLE endcase end `endif @@ -36,8 +32,7 @@ 0: begin /* type F */ end 1: tmp <= rdata; // tmp contains newpcl 2: tmp2 <= rdata; // tmp2 contains newpch - 3: {registers[`REG_PCH],registers[`REG_PCL]} <= - {tmp2,tmp}; + 3: `_PC <= {tmp2,tmp}; endcase end `endif