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Line 43... |
//////////////////////////////////////////////////////////////////////
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//////////////////////////////////////////////////////////////////////
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//
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//
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// CVS Revision History
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// CVS Revision History
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//
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//
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// $Log: not supported by cvs2svn $
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// $Log: not supported by cvs2svn $
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// Revision 1.3 2003/04/24 00:16:07 lampret
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// No functional changes. Added defines to disable implementation of multiplier/MAC
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//
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// Revision 1.2 2002/09/08 05:52:16 lampret
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// Revision 1.2 2002/09/08 05:52:16 lampret
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// Added optional l.div/l.divu insns. By default they are disabled.
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// Added optional l.div/l.divu insns. By default they are disabled.
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//
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//
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// Revision 1.1 2002/01/03 08:16:15 lampret
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// Revision 1.1 2002/01/03 08:16:15 lampret
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// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
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// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
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Line 166... |
`endif
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`endif
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`ifdef OR1200_LOWPWR_MULT
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`ifdef OR1200_LOWPWR_MULT
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assign x = (alu_op_div & a[31]) ? ~a + 1'b1 : alu_op_div_divu | (alu_op == `OR1200_ALUOP_MUL) | (|mac_op) ? a : 32'h0000_0000;
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assign x = (alu_op_div & a[31]) ? ~a + 1'b1 : alu_op_div_divu | (alu_op == `OR1200_ALUOP_MUL) | (|mac_op) ? a : 32'h0000_0000;
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assign y = (alu_op_div & b[31]) ? ~b + 1'b1 : alu_op_div_divu | (alu_op == `OR1200_ALUOP_MUL) | (|mac_op) ? b : 32'h0000_0000;
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assign y = (alu_op_div & b[31]) ? ~b + 1'b1 : alu_op_div_divu | (alu_op == `OR1200_ALUOP_MUL) | (|mac_op) ? b : 32'h0000_0000;
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`else
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`else
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assign x = alu_op_div & a[31] ? ~a + 1'b1 : a;
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assign x = alu_op_div & a[31] ? ~a + 32'b1 : a;
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assign y = alu_op_div & b[31] ? ~b + 1'b1 : b;
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assign y = alu_op_div & b[31] ? ~b + 32'b1 : b;
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`endif
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`endif
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`ifdef OR1200_IMPL_DIV
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`ifdef OR1200_IMPL_DIV
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assign alu_op_div = (alu_op == `OR1200_ALUOP_DIV);
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assign alu_op_div = (alu_op == `OR1200_ALUOP_DIV);
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assign alu_op_div_divu = alu_op_div | (alu_op == `OR1200_ALUOP_DIVU);
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assign alu_op_div_divu = alu_op_div | (alu_op == `OR1200_ALUOP_DIVU);
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assign div_tmp = mul_prod_r[63:32] - y;
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assign div_tmp = mul_prod_r[63:32] - y;
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