riscv/rocket-chip
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fix vxcptwait inst bug, it was incorrect when exception_valid was on before do_xcptwait

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This commit is contained in:
Yunsup Lee 2012-03-15 02:09:31 -07:00
parent f972977da1
commit 72006160dc
1 changed files with 1 additions and 1 deletions
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2
rocket/src/main/scala/ctrl_vec.scala
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@ -223,8 +223,8 @@ class rocketCtrlVec extends Component
val reg_xcptwait = Reg(resetVal = Bool(false)) val reg_xcptwait = Reg(resetVal = Bool(false))
val do_xcptwait = valid_common && wb_vec_xcptwait && !io.replay val do_xcptwait = valid_common && wb_vec_xcptwait && !io.replay
when (do_xcptwait) { reg_xcptwait := Bool(true) }
when (io.iface.exception_ack_valid) { reg_xcptwait := Bool(false) } when (io.iface.exception_ack_valid) { reg_xcptwait := Bool(false) }
when (do_xcptwait) { reg_xcptwait := Bool(true) }
io.iface.exception := io.exception && io.sr_ev io.iface.exception := io.exception && io.sr_ev
io.iface.exception_ack_ready := reg_xcptwait io.iface.exception_ack_ready := reg_xcptwait