| Line 378... |
Line 378... |
o1[1] = alu_argAs < alu_argIs;
|
o1[1] = alu_argAs < alu_argIs;
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o1[2] = alu_argA < alu_argI;
|
o1[2] = alu_argA < alu_argI;
|
o1[3] = 1'b0;
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o1[3] = 1'b0;
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o <= {16{o1}};
|
o <= {16{o1}};
|
end
|
end
|
`LB,`LBU,`LC,`LCU,`LH,`LHU,`LW,`SB,`SC,`SH,`SW,`CAS,`LVB,`LVC,`LVH,`LVH,`STI,
|
`LB,`LBU,`LC,`LCU,`LH,`LHU,`LW,`SB,`SC,`SH,`SW,`CAS,`LVB,`LVC,`LVH,`LVW,`STI,
|
`LWS,`SWS,`LEA,`RTS2,`STS,`STFND,`STCMP:
|
`LWS,`SWS,`RTS2,`STS,`STFND,`STCMP,`PUSH:
|
begin
|
begin
|
o <= alu_argA + alu_argC + alu_argI;
|
o <= alu_argA + alu_argC + alu_argI;
|
end
|
end
|
|
`JMPI: o <= {alu_argA << alu_fn[1:0]} + alu_argC + alu_argI;
|
`LBX,`LBUX,`SBX,
|
`LBX,`LBUX,`SBX,
|
`LCX,`LCUX,`SCX,
|
`LCX,`LCUX,`SCX,
|
`LHX,`LHUX,`SHX,
|
`LHX,`LHUX,`SHX,
|
`LWX,`SWX:
|
`LWX,`SWX,
|
|
`JMPIX:
|
case(alu_fn[1:0])
|
case(alu_fn[1:0])
|
2'd0: o <= alu_argA + alu_argC + alu_argB;
|
2'd0: o <= alu_argA + alu_argC + alu_argB;
|
2'd1: o <= alu_argA + alu_argC + {alu_argB,1'b0};
|
2'd1: o <= alu_argA + alu_argC + {alu_argB,1'b0};
|
2'd2: o <= alu_argA + alu_argC + {alu_argB,2'b0};
|
2'd2: o <= alu_argA + alu_argC + {alu_argB,2'b0};
|
2'd3: o <= alu_argA + alu_argC + {alu_argB,3'b0};
|
2'd3: o <= alu_argA + alu_argC + {alu_argB,3'b0};
|
endcase
|
endcase
|
`ifdef STACKOPS
|
`ifdef STACKOPS
|
`PUSH,`PEA,`LINK: o <= alu_argA + alu_argC - 64'd8;
|
`PEA,`LINK: o <= alu_argA + alu_argC - 64'd8;
|
`UNLINK: o <= alu_argA + alu_argC + 64'd8;
|
`UNLINK: o <= alu_argA + alu_argC + 64'd8;
|
`POP: o <= alu_argA + alu_argC;
|
`POP: o <= alu_argA + alu_argC;
|
`endif
|
`endif
|
`JSR,`JSRS,`JSRZ,`SYS: o <= alu_pc + insnsz;
|
`JSR,`JSRS,`JSRZ,`SYS: o <= alu_pc + insnsz;
|
`INT: o <= alu_pc;
|
`INT: o <= alu_pc;
|
| Line 421... |
Line 423... |
o <= 64'hDEADDEADDEADDEAD;
|
o <= 64'hDEADDEADDEADDEAD;
|
`SHIFT: o <= BIG ? shfto : 64'hDEADDEADDEADDEAD;
|
`SHIFT: o <= BIG ? shfto : 64'hDEADDEADDEADDEAD;
|
`ifdef BITFIELDOPS
|
`ifdef BITFIELDOPS
|
`BITFIELD: o <= BIG ? bf_out : 64'hDEADDEADDEADDEAD;
|
`BITFIELD: o <= BIG ? bf_out : 64'hDEADDEADDEADDEAD;
|
`endif
|
`endif
|
`LOOP: o <= alu_argB > 0 ? alu_argB - 64'd1 : alu_argB;
|
`LOOP: o <= alu_argA > 0 ? alu_argA - 64'd1 : alu_argA;
|
default: o <= 64'hDEADDEADDEADDEAD;
|
default: o <= 64'hDEADDEADDEADDEAD;
|
endcase
|
endcase
|
end
|
end
|
|
|
// Generate done signal
|
// Generate done signal
|
