Fix add sp, imm8 *sweatdrop*
[fpgaboy.git] / core / insn_ld_reg_imm16.v
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1`define INSN_LD_reg_imm16 9'b000xx0001
2
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3`ifdef EXECUTE
4 `INSN_LD_reg_imm16: begin
5c33c5c0 5 `EXEC_INC_PC
81358c71 6 case (cycle)
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7 0: `EXEC_READ(`_PC + 1)
8 1: `EXEC_READ(`_PC + 1)
9 2: `EXEC_NEWCYCLE
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10 endcase
11 end
12`endif
13
14`ifdef WRITEBACK
15 `INSN_LD_reg_imm16: begin
16 case (cycle)
17 0: begin /* */ end
18 1: begin
19 case (opcode[5:4])
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20 `INSN_reg16_BC: `_C <= rdata;
21 `INSN_reg16_DE: `_E <= rdata;
22 `INSN_reg16_HL: `_L <= rdata;
23 `INSN_reg16_SP: `_SPL <= rdata;
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24 endcase
25 end
26 2: begin
27 case (opcode[5:4])
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28 `INSN_reg16_BC: `_B <= rdata;
29 `INSN_reg16_DE: `_D <= rdata;
30 `INSN_reg16_HL: `_H <= rdata;
31 `INSN_reg16_SP: `_SPH <= rdata;
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32 endcase
33 end
34 endcase
35 end
36`endif
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