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https://opencores.org/ocsvn/raytrac/raytrac/trunk
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| Rev 109 |
Rev 110 |
| Line 114... |
Line 114... |
s4expnurm <= s3expnurm;
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s4expnurm <= s3expnurm;
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end if;
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end if;
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end process;
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end process;
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Line 197... |
begin
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begin
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case s3bgta is
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case s3bgta is
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when '1' => -- Negativo b>a : se corre a delta espacios a la derecha y b se queda quieto
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when '1' => -- Negativo b>a : se corre a delta espacios a la derecha y b se queda quieto
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s3ssmb <= s3smb;
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s3ssmb <= s3smb;
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shiftslab(23 downto 0)<=(others=>s3sma(24));
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s3shiftslab(23 downto 0)<=(others=>s3sma(24));
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case s3udelta is
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case s3udelta is
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when x"3" => s3ssma <= (s3sma(24)&shiftslab(23 downto 0));
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when x"3" => s3ssma <= (s3sma(24)&s3shiftslab(23 downto 0));
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when x"2" => s3ssma <= (s3sma(24)&shiftslab(15 downto 0)&s3sma(23 downto 16));
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when x"2" => s3ssma <= (s3sma(24)&s3shiftslab(15 downto 0)&s3sma(23 downto 16));
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when x"1" => s3ssma <= (s3sma(24)&shiftslab(7 downto 0)&s3sma(23 downto 8));
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when x"1" => s3ssma <= (s3sma(24)&s3shiftslab(7 downto 0)&s3sma(23 downto 8));
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when others => s3ssma <= s3sma;
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when others => s3ssma <= s3sma;
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end case;
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end case;
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when others => -- Positivo a>=b : se corre a delta espacios a la derecha y a se queda quieto
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when others => -- Positivo a>=b : se corre a delta espacios a la derecha y a se queda quieto
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s3ssma <= s3sma;
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s3ssma <= s3sma;
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shiftslab(23 downto 0)<=(others=>s3smb(24));
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shiftslab(23 downto 0)<=(others=>s3smb(24));
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case s3udelta is
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case s3udelta is
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when x"3" => s3ssmb <= (s3smb(24)&shiftslab(23 downto 0));
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when x"3" => s3ssmb <= (s3smb(24)&s3shiftslab(23 downto 0));
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when x"2" => s3ssmb <= (s3smb(24)&shiftslab(15 downto 0)&s3smb(23 downto 16));
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when x"2" => s3ssmb <= (s3smb(24)&s3shiftslab(15 downto 0)&s3smb(23 downto 16));
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when x"1" => s3ssmb <= (s3smb(24)&shiftslab(7 downto 0)&s3smb(23 downto 8));
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when x"1" => s3ssmb <= (s3smb(24)&s3shiftslab(7 downto 0)&s3smb(23 downto 8));
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when others => s3ssmb <= s3smb;
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when others => s3ssmb <= s3smb;
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end case;
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end case;
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end case;
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end case;
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if s3zero='0' then
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if s3zero='0' then
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s3ssm <= (s3ssma(24)&s3ssma)+(s3ssmb(24)&s3ssmb);
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s3ssm <= (s3ssma(24)&s3ssma)+(s3ssmb(24)&s3ssmb);
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Line 266... |
end case;
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end case;
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end process;
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end process;
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end fadd32_arch;
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end fadd32_arch;
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