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CAPI=2:
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name : ::microwatt:0
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filesets:
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core:
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files:
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- decode_types.vhdl
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- wishbone_types.vhdl
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- common.vhdl
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- fetch1.vhdl
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- fetch2.vhdl
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- decode1.vhdl
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- helpers.vhdl
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- decode2.vhdl
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- register_file.vhdl
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- cr_file.vhdl
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- crhelpers.vhdl
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- ppc_fx_insns.vhdl
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- sim_console.vhdl
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- logical.vhdl
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- countzero.vhdl
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- gpr_hazard.vhdl
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- control.vhdl
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- execute1.vhdl
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- execute2.vhdl
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- loadstore1.vhdl
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- loadstore2.vhdl
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- multiply.vhdl
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- divider.vhdl
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Add a rotate/mask/shift unit and use it in execute1
This adds a new entity 'rotator' which contains combinatorial logic
for rotating and masking 64-bit values. It implements the operations
of the rlwinm, rlwnm, rlwimi, rldicl, rldicr, rldic, rldimi, rldcl,
rldcr, sld, slw, srd, srw, srad, sradi, sraw and srawi instructions.
It consists of a 3-stage 64-bit rotator using 4:1 multiplexors at
each stage, two mask generators, output logic and control logic.
The insn_type_t values used for these instructions have been reduced
to just 5: OP_RLC, OP_RLCL and OP_RLCR for the rotate and mask
instructions (clear both left and right, clear left, clear right
variants), OP_SHL for left shifts, and OP_SHR for right shifts.
The control signals for the rotator are derived from the opcode
and from the is_32bit and is_signed fields of the decode_rom_t.
The rotator is instantiated as an entity in execute1 so that we can
be sure we only have one of it.
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
5 years ago
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- rotator.vhdl
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- writeback.vhdl
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- insn_helpers.vhdl
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- core.vhdl
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- icache.vhdl
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- plru.vhdl
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- cache_ram.vhdl
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- core_debug.vhdl
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file_type : vhdlSource-2008
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soc:
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files:
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- wishbone_arbiter.vhdl
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- wishbone_debug_master.vhdl
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- soc.vhdl
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file_type : vhdlSource-2008
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fpga:
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files:
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- fpga/pp_fifo.vhd
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- fpga/mw_soc_memory.vhdl
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- fpga/soc_reset.vhdl
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- fpga/pp_soc_uart.vhd
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- fpga/pp_utilities.vhd
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- fpga/toplevel.vhdl
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- fpga/firmware.hex : {copyto : firmware.hex, file_type : user}
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file_type : vhdlSource-2008
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debug_xilinx:
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files:
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- dmi_dtm_xilinx.vhdl : {file_type : vhdlSource-2008}
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debug_dummy:
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files:
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- dmi_dtm_dummy.vhdl : {file_type : vhdlSource-2008}
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nexys_a7:
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files:
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- fpga/nexys_a7.xdc : {file_type : xdc}
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- fpga/clk_gen_plle2.vhd : {file_type : vhdlSource-2008}
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nexys_video:
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files:
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- fpga/nexys-video.xdc : {file_type : xdc}
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- fpga/clk_gen_plle2.vhd : {file_type : vhdlSource-2008}
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arty_a7:
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files:
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- fpga/arty_a7.xdc : {file_type : xdc}
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- fpga/clk_gen_plle2.vhd : {file_type : vhdlSource-2008}
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cmod_a7-35:
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files:
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- fpga/cmod_a7-35.xdc : {file_type : xdc}
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- fpga/clk_gen_mcmm.vhd : {file_type : vhdlSource-2008}
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targets:
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nexys_a7:
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default_tool: vivado
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filesets: [core, nexys_a7, soc, fpga, debug_xilinx]
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parameters :
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- memory_size
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- ram_init_file
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- clk_input
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- clk_frequency
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tools:
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vivado: {part : xc7a100tcsg324-1}
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toplevel : toplevel
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nexys_video:
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default_tool: vivado
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filesets: [core, nexys_video, soc, fpga, debug_xilinx]
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parameters :
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- memory_size
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- ram_init_file
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- clk_input
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- clk_frequency
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tools:
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vivado: {part : xc7a200tsbg484-1}
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toplevel : toplevel
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arty_a7-35:
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default_tool: vivado
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filesets: [core, arty_a7, soc, fpga, debug_xilinx]
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parameters :
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- memory_size
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- ram_init_file
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- clk_input
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- clk_frequency
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tools:
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vivado: {part : xc7a35ticsg324-1L}
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toplevel : toplevel
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arty_a7-100:
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default_tool: vivado
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filesets: [core, arty_a7, soc, fpga, debug_xilinx]
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parameters :
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- memory_size
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- ram_init_file
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- clk_input
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- clk_frequency
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tools:
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vivado: {part : xc7a100ticsg324-1L}
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toplevel : toplevel
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cmod_a7-35:
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default_tool: vivado
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filesets: [core, cmod_a7-35, soc, fpga, debug_xilinx]
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parameters :
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- memory_size
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- ram_init_file
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- reset_low=false
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- clk_input=12000000
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- clk_frequency
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tools:
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vivado: {part : xc7a35tcpg236-1}
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toplevel : toplevel
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synth:
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filesets: [core, soc]
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tools:
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vivado: {pnr : none}
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toplevel: core
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parameters:
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memory_size:
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datatype : int
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description : On-chip memory size (bytes)
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paramtype : generic
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ram_init_file:
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datatype : file
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description : Initial on-chip RAM contents
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paramtype : generic
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reset_low:
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datatype : bool
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description : External reset button polarity
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paramtype : generic
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clk_input:
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datatype : int
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description : Clock input frequency in HZ (for top-generic based boards)
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paramtype : generic
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default : 100000000
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clk_frequency:
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datatype : int
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description : Generated system clock frequency in HZ (for top-generic based boards)
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paramtype : generic
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default : 50000000
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