URL https://opencores.org/ocsvn/plasma/plasma/trunk

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[/] [plasma/] [trunk/] [vhdl/] [mult.vhd] - Diff between revs 391 and 428

Rev 391	Rev 428
Line 75...	Line 75...

`-- Result`	`-- Result`
`c_mult <= lower_reg when mult_func = MULT_READ_LO and negate_reg = '0' else`	`c_mult <= lower_reg when mult_func = MULT_READ_LO and negate_reg = '0' else`
`bv_negate(lower_reg) when mult_func = MULT_READ_LO`	`bv_negate(lower_reg) when mult_func = MULT_READ_LO`
`and negate_reg = '1' else`	`and negate_reg = '1' else`
`upper_reg when mult_func = MULT_READ_HI else`	`upper_reg when mult_func = MULT_READ_HI and negate_reg = '0' else`
	`bv_negate(upper_reg) when mult_func = MULT_READ_HI`
	`and negate_reg = '1' else`
`ZERO;`	`ZERO;`
`pause_out <= '1' when (count_reg /= "000000") and`	`pause_out <= '1' when (count_reg /= "000000") and`
`(mult_func = MULT_READ_LO or mult_func = MULT_READ_HI) else '0';`	`(mult_func = MULT_READ_LO or mult_func = MULT_READ_HI) else '0';`

`-- ABS and remainder signals`	`-- ABS and remainder signals`
Line 128...	Line 130...
`bb_reg <= b;`	`bb_reg <= b;`
`else`	`else`
`aa_reg <= a_neg;`	`aa_reg <= a_neg;`
`bb_reg <= b_neg;`	`bb_reg <= b_neg;`
`end if;`	`end if;`
	`if a /= ZERO then`
`sign_reg <= a(31) xor b(31);`	`sign_reg <= a(31) xor b(31);`
	`else`
	`sign_reg <= '0';`
	`end if;`
`sign2_reg <= '0';`	`sign2_reg <= '0';`
`upper_reg <= ZERO;`	`upper_reg <= ZERO;`
`count_reg <= "100000";`	`count_reg <= "100000";`
`negate_reg <= '0';`	`negate_reg <= '0';`
`when MULT_DIVIDE =>`	`when MULT_DIVIDE =>`