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fix(exe): 修复tval更新错误

This commit is contained in:
Liphen 2023-12-01 15:24:35 +08:00
parent ed6c3221e8
commit a08eb20f88
1 changed files with 10 additions and 17 deletions
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23
chisel/playground/src/pipeline/execute/ExecuteUnit.scala
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@ -115,7 +115,8 @@ class ExecuteUnit(implicit val config: CpuConfig) extends Module {
Seq(
(fu.branch.pred_fail && fu.branch.branch) -> io.executeStage.inst0.jb_info.branch_target,
(fu.branch.pred_fail && !fu.branch.branch) -> (io.executeStage.inst0.pc + 4.U),
(io.executeStage.inst0.jb_info.jump_regiser) -> ((io.executeStage.inst0.src_info.src1_data + io.executeStage.inst0.src_info.src2_data) & ~1.U(XLEN.W)),
(io.executeStage.inst0.jb_info.jump_regiser) -> ((io.executeStage.inst0.src_info.src1_data + io.executeStage.inst0.src_info.src2_data) & ~1
.U(XLEN.W))
)
)
@ -152,13 +153,9 @@ class ExecuteUnit(implicit val config: CpuConfig) extends Module {
)
io.memoryStage.inst0.ex.exception(instrAddrMisaligned) := io.executeStage.inst0.ex.exception(instrAddrMisaligned) ||
io.fetchUnit.branch && io.fetchUnit.target(1, 0).orR
io.memoryStage.inst0.ex.tval := MuxCase(
io.executeStage.inst0.ex.tval,
Seq(
(io.executeStage.inst0.ex.exception(instrAddrMisaligned)) -> io.executeStage.inst0.ex.tval,
(io.fetchUnit.branch && io.fetchUnit.target(1, 0).orR) -> io.fetchUnit.target
)
)
when(io.fetchUnit.branch && io.fetchUnit.target(1, 0).orR) {
io.memoryStage.inst0.ex.tval := io.fetchUnit.target
}
io.memoryStage.inst1.pc := io.executeStage.inst1.pc
io.memoryStage.inst1.info := io.executeStage.inst1.info
@ -183,13 +180,9 @@ class ExecuteUnit(implicit val config: CpuConfig) extends Module {
)
io.memoryStage.inst1.ex.exception(instrAddrMisaligned) := io.executeStage.inst1.ex.exception(instrAddrMisaligned) ||
io.fetchUnit.branch && io.fetchUnit.target(1, 0).orR
io.memoryStage.inst1.ex.tval := MuxCase(
io.executeStage.inst1.ex.tval,
Seq(
(io.executeStage.inst1.ex.exception(instrAddrMisaligned)) -> io.executeStage.inst1.ex.tval,
(io.fetchUnit.branch && io.fetchUnit.target(1, 0).orR) -> io.fetchUnit.target
)
)
when(io.fetchUnit.branch && io.fetchUnit.target(1, 0).orR) {
io.memoryStage.inst1.ex.tval := io.fetchUnit.target
}
io.decoderUnit.forward(0).exe.wen := io.memoryStage.inst0.info.reg_wen
io.decoderUnit.forward(0).exe.waddr := io.memoryStage.inst0.info.reg_waddr