| Line 19... |
Line 19... |
-- along with this program. If not, see <http://www.gnu.org/licenses/>. --
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-- along with this program. If not, see <http://www.gnu.org/licenses/>. --
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-- --
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-- --
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------------------------------------------------------------------------------
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------------------------------------------------------------------------------
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------------------------------------------------------------------------------
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------------------------------------------------------------------------------
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-- 03.11.2019 TG rework barrel shifter - some other tweaks
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-- 02.11.2019 TG bugfig N-Flag and Z-Flag for DIV
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-- 30.10.2019 TG bugfix RTR in 68020-mode
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-- 30.10.2019 TG bugfix RTR in 68020-mode
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-- 30.10.2019 TG bugfix BFINS again
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-- 30.10.2019 TG bugfix BFINS again
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-- 19.10.2019 TG insert some bugfixes from apolkosnik
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-- 19.10.2019 TG insert some bugfixes from apolkosnik
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-- 05.12.2018 TG insert RTD opcode
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-- 05.12.2018 TG insert RTD opcode
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-- 03.12.2018 TG insert barrel shifter
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-- 03.12.2018 TG insert barrel shifter
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| Line 1255... |
Line 1257... |
SRin <= OP2out(15 downto 8);
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SRin <= OP2out(15 downto 8);
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END IF;
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END IF;
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IF rising_edge(clk) THEN
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IF rising_edge(clk) THEN
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IF Reset='1' THEN
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IF Reset='1' THEN
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FlagsSR(5) <= '1';
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FC(2) <= '1';
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FC(2) <= '1';
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SVmode <= '1';
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SVmode <= '1';
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preSVmode <= '1';
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preSVmode <= '1';
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FlagsSR(3 downto 0) <= "0111";
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FlagsSR <= "00100111";
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make_trace <= '0';
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make_trace <= '0';
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ELSIF clkena_lw = '1' THEN
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ELSIF clkena_lw = '1' THEN
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IF setopcode='1' THEN
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IF setopcode='1' THEN
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make_trace <= FlagsSR(7);
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make_trace <= FlagsSR(7);
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IF set(changeMode)='1' THEN
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IF set(changeMode)='1' THEN
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| Line 1296... |
Line 1297... |
FC(2) <= FlagsSR(5);
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FC(2) <= FlagsSR(5);
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END IF;
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END IF;
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IF interrupt='1' THEN
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IF interrupt='1' THEN
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FC(2) <= '1';
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FC(2) <= '1';
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END IF;
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END IF;
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IF cpu(1)='0' THEN
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FlagsSR(6) <= '0';
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END IF;
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FlagsSR(3) <= '0';
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FlagsSR(3) <= '0';
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END IF;
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END IF;
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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 1973... |
Line 1977... |
datatype <= "10";
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datatype <= "10";
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IF opcode(5 downto 3)="000" THEN --swap
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IF opcode(5 downto 3)="000" THEN --swap
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set_exec(opcSWAP) <= '1';
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set_exec(opcSWAP) <= '1';
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set_exec(Regwrena) <= '1';
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set_exec(Regwrena) <= '1';
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ELSIF opcode(5 downto 3)="001" THEN --bkpt
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ELSIF opcode(5 downto 3)="001" THEN --bkpt
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trap_illegal <= '1';
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trapmake <= '1';
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ELSE --pea
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ELSE --pea
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ea_only <= '1';
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ea_only <= '1';
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ea_build_now <= '1';
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ea_build_now <= '1';
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IF nextpass='1' AND micro_state=idle THEN
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IF nextpass='1' AND micro_state=idle THEN
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set(presub) <= '1';
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set(presub) <= '1';
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