mips_sys

fixed instruction fetch during stall
Parent 2205449
Stefan Schuermans

Stefan Schuermans commited on 2012-02-09 21:31:07
Showing 1 changed files, with 5 additions and 1 deletions.

mips/core.vhd
View file @ 3788318
... ... 
@@ -269,9 +269,13 @@ BEGIN
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         END IF;
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     END PROCESS p_sync_pc;
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-    p_fetch: PROCESS(n_pc, i_instr_data)
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+    p_fetch: PROCESS(s_stall, r_pc, n_pc, i_instr_data)
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     BEGIN
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+        IF s_stall = '1' THEN
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+            o_instr_addr <= r_pc;
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+        ELSE
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             o_instr_addr <= n_pc;
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+        END IF;
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         s_instr      <= i_instr_data;
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     END PROCESS p_fetch;
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