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Add xdma demo #1

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Add xdma demo #1

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@ruiqurm ruiqurm commented Oct 17, 2023

A simple xdma controller demo with descriptor bypass bridge.

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ifeq "$(HAVE_VERILOG_VERILATOR)" "y"
# ifeq "$(HAVE_VERILOG_VERILATOR)" "y"
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not needed comment ?

// Forward DMA requests received from the CPM5 QDMA
//
void fwd_dma_b_transport(tlm::tlm_generic_payload& trans, sc_time& delay) {
// trans.set_response_status(tlm::TLM_OK_RESPONSE);
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here

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