/**********************************************************************************
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/**********************************************************************************
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Theaia, Ray Cast Programable graphic Processing Unit.
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Theaia, Ray Cast Programable graphic Processing Unit.
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Copyright (C) 2009 Diego Valverde (diego.valverde.g@gmail.com)
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Copyright (C) 2009 Diego Valverde (diego.valverde.g@gmail.com)
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This program is free software; you can redistribute it and/or
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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***********************************************************************************/
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***********************************************************************************/
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/**********************************************************************************
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/**********************************************************************************
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Module Description:
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Module Description:
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WIP
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WIP
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**********************************************************************************/
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**********************************************************************************/
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`timescale 1ns / 1ps
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`timescale 1ns / 1ps
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`include "aDefinitions.v"
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`include "aDefinitions.v"
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`define GFSM_AFTER_RESET 0
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`define GFSM_AFTER_RESET 0
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`define GFSM_INITIAL_STATE 1
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`define GFSM_INITIAL_STATE 1
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`define GFSM_TRIGGER_AABBIU 2
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`define GFSM_TRIGGER_AABBIU 2
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`define GFSM_WAIT_FOR_AABBIU 3
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`define GFSM_WAIT_FOR_AABBIU 3
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`define GFSM_ACK_AABBIU 10
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`define GFSM_ACK_AABBIU 10
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`define GFSM_AABBIU_HIT 4
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`define GFSM_AABBIU_HIT 4
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`define GFSM_AABBIU_NO_HIT 5
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`define GFSM_AABBIU_NO_HIT 5
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`define GFSM_TRIGGER_TRIANGLE_FETCH 6
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`define GFSM_TRIGGER_TRIANGLE_FETCH 6
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`define GFSM_WAIT_FOR_TRIANGLE_FETCH 7
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`define GFSM_WAIT_FOR_TRIANGLE_FETCH 7
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`define GFSM_TRIGGER_BIU_REQUSET 8
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`define GFSM_TRIGGER_BIU_REQUSET 8
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`define GFSM_WAIT_FOR_BIU 9
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`define GFSM_WAIT_FOR_BIU 9
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`define GFSM_GET_FIRST_CHILD 11
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`define GFSM_GET_FIRST_CHILD 11
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`define GFSM_CHECK_TRIANGLE_COUNT 12
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`define GFSM_CHECK_TRIANGLE_COUNT 12
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`define GFSM_CHECK_NEXT_BROTHER 13
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`define GFSM_CHECK_NEXT_BROTHER 13
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`define GFSM_GET_BROTHER 14
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`define GFSM_GET_BROTHER 14
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`define GFSM_TRIGGER_NODE_FETCH 15
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`define GFSM_TRIGGER_NODE_FETCH 15
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`define GFSM_FETCH_NEXT_BROTHER 16
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`define GFSM_FETCH_NEXT_BROTHER 16
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`define GFSM_CHECK_PARENTS_BROTHER 18
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`define GFSM_CHECK_PARENTS_BROTHER 18
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`define GFSM_GET_PARENTS_BROTHER 19
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`define GFSM_GET_PARENTS_BROTHER 19
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`define GFSM_WAIT_FOR_NODE_FETCH 20
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`define GFSM_WAIT_FOR_NODE_FETCH 20
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`define GFSM_POST_BLOCK_READ_DELAY 21
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`define GFSM_POST_BLOCK_READ_DELAY 21
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`define GFSM_TRIGGER_ROOT_NODE_FETCH 23
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`define GFSM_TRIGGER_ROOT_NODE_FETCH 23
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`define GFSM_WAIT_FOR_ROOT_NODE_FETCH 24
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`define GFSM_WAIT_FOR_ROOT_NODE_FETCH 24
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`define GFSM_FETCH_DATA 25
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`define GFSM_FETCH_DATA 25
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`define GFSM_WAITF_FOR_BIU_AVAILABLE 26
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`define GFSM_WAITF_FOR_BIU_AVAILABLE 26
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`define GFSM_SWAP_TRIANGLE_POINTER 27
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`define GFSM_SWAP_TRIANGLE_POINTER 27
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`define GFSM_DONE 28
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`define GFSM_DONE 28
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`define GFSM_SET_TRIANGLE_LIST_INITIAL_OFFSET 29
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`define GFSM_SET_TRIANGLE_LIST_INITIAL_OFFSET 29
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`define GFSM_REQUEST_TCC 30
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`define GFSM_REQUEST_TCC 30
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`define GFSM_WAIT_FOR_TCC 31
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`define GFSM_WAIT_FOR_TCC 31
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`define GFSM_WAIT_STATE_PRE_TCC 32
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`define GFSM_WAIT_STATE_PRE_TCC 32
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`define GFSM_INITIAL_STATE_TEXTURE 33
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`define GFSM_INITIAL_STATE_TEXTURE 33
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`define GFSM_SET_WBM_INITIAL_ADDRESS 34
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`define GFSM_SET_WBM_INITIAL_ADDRESS 34
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`define GFSM_REQUEST_TEXTURE 35
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`define GFSM_REQUEST_TEXTURE 35
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`define GFSM_WAIT_FOR_TEXTURE 36
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`define GFSM_WAIT_FOR_TEXTURE 36
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`define GFSM_REQUEST_NEXT_TEXTURE 37
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`define GFSM_REQUEST_NEXT_TEXTURE 37
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`define GFSM_WAIT_FOR_NEXT_TEXTURE 38
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`define GFSM_WAIT_FOR_NEXT_TEXTURE 38
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`define GFSM_INC_TEXTURE_ADDRESS 39
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`define GFSM_INC_TEXTURE_ADDRESS 39
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`define GFSM_SET_NEXT_TEXTURE_ADDR 42
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`define GFSM_SET_NEXT_TEXTURE_ADDR 42
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module GeometryFetchFSM
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module GeometryFetchFSM
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(
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(
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input wire Clock,
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input wire Clock,
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input wire Reset,
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input wire Reset,
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//Input control signals
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//Input control signals
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input wire iEnable,
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input wire iEnable,
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input wire iAABBIUHit,
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input wire iAABBIUHit,
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input wire iBIUHit,
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input wire iBIUHit,
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input wire iUCodeDone,
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input wire iUCodeDone,
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input wire iTexturingEnable,
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input wire iTexturingEnable,
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input wire iTriangleReadDone,
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input wire iTriangleReadDone,
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//input wire iTextureReadDone,
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//input wire iTextureReadDone,
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input wire iNodeReadDone,
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input wire iNodeReadDone,
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//Current Node info
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//Current Node info
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input wire iNode_IsLeaf,
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input wire iNode_IsLeaf,
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input wire[`WIDTH-1:0] iNode_Brother_Address,
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input wire[`WIDTH-1:0] iNode_Brother_Address,
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input wire[`WIDTH-1:0] iNode_TriangleCount,
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input wire[`WIDTH-1:0] iNode_TriangleCount,
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input wire[`WIDTH-1:0] iNode_Parents_Brother_Address,
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input wire[`WIDTH-1:0] iNode_Parents_Brother_Address,
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//input wire[`WIDTH-1:0] Node_OffsetData_Address,
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//input wire[`WIDTH-1:0] Node_OffsetData_Address,
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input wire[`WIDTH-1:0] iNode_FirstChild_Address,
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input wire[`WIDTH-1:0] iNode_FirstChild_Address,
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//input wire iBIUAvailable,
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//input wire iBIUAvailable,
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//input wire Node_MaxBlocks,
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//input wire Node_MaxBlocks,
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//Control output signals
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//Control output signals
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output reg oEnable_WBM, //Activate the WBM in I/O
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output reg oEnable_WBM, //Activate the WBM in I/O
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output wire[`DATA_ADDRESS_WIDTH-1:0] oAddressWBM, //This is the address that we want to read from in I/O
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output wire[`DATA_ADDRESS_WIDTH-1:0] oAddressWBM, //This is the address that we want to read from in I/O
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output reg oSetAddressWBM, //This uis to tell I/O to use the adress we just set
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output reg oSetAddressWBM, //This uis to tell I/O to use the adress we just set
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output reg oSetIOWriteBackAddr,
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output reg oSetIOWriteBackAddr,
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output wire[`DATA_ADDRESS_WIDTH-1:0] oRAMTextureStoreLocation, //This is where we want to store the data comming from I/O
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output wire[`DATA_ADDRESS_WIDTH-1:0] oRAMTextureStoreLocation, //This is where we want to store the data comming from I/O
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input wire iDataAvailable,
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input wire iDataAvailable,
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output reg [`WIDTH-1:0] oNodeAddress,
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output reg [`WIDTH-1:0] oNodeAddress,
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input wire iTrigger_TFF,
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input wire iTrigger_TFF,
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output reg oRequest_AABBIU,
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output reg oRequest_AABBIU,
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output reg oRequest_BIU,
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output reg oRequest_BIU,
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output reg oRequest_TCC,
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output reg oRequest_TCC,
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output reg oTrigger_TFU,
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output reg oTrigger_TFU,
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output reg oTrigger_TNF,
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output reg oTrigger_TNF,
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output reg [1:0] oWBM_Addr_Selector, //0 = TNF, 1 = TFU, 2 = TCC
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output reg [1:0] oWBM_Addr_Selector, //0 = TNF, 1 = TFU, 2 = TCC
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output reg oSync,
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output reg oSync,
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output reg oSetTFUAddressOffset,
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output reg oSetTFUAddressOffset,
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output reg oDone
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output reg oDone
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);
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);
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reg [6:0] CurrentState;
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reg [6:0] CurrentState;
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reg [6:0] NextState;
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reg [6:0] NextState;
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//reg //IncTextureWriteAddress;
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//reg //IncTextureWriteAddress;
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reg IncTextureCoordRegrAddr,IncTextureCount;
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reg IncTextureCoordRegrAddr,IncTextureCount;
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wire [2:0] wTextureCount;
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wire [2:0] wTextureCount;
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reg IncTriangleCount,ClearTriangleCount;
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reg IncTriangleCount,ClearTriangleCount;
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wire [`WIDTH-1:0] wTriangleCount;
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wire [`WIDTH-1:0] wTriangleCount;
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//----------------------------------------
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//----------------------------------------
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UpCounter_32 UP32_Tricount
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UpCounter_32 UP32_Tricount
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(
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(
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.Clock( Clock ),
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.Clock( Clock ),
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.Reset( ClearTriangleCount ),
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.Reset( ClearTriangleCount ),
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.Initial( 0 ),
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.Initial( 0 ),
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.Enable( IncTriangleCount ),
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.Enable( IncTriangleCount ),
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.Q( wTriangleCount )
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.Q( wTriangleCount )
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);
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);
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//-----------------------------
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//-----------------------------
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UpCounter_16E TFF_VC1a
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UpCounter_16E TFF_VC1a
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(
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(
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.Clock( Clock ),
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.Clock( Clock ),
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.Reset( iTrigger_TFF | Reset ),
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.Reset( iTrigger_TFF | Reset ),
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.Initial( `OREG_TEX_COORD1 ),
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.Initial( `OREG_TEX_COORD1 ),
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.Enable( IncTextureCoordRegrAddr ),
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.Enable( IncTextureCoordRegrAddr ),
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.Q( oAddressWBM )
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.Q( oAddressWBM )
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);
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);
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//assign oAddressWBM = `OREG_TEX_COORD1;
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//assign oAddressWBM = `OREG_TEX_COORD1;
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//-----------------------------
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//-----------------------------
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UPCOUNTER_POSEDGE # (3) TFF_VC1
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UPCOUNTER_POSEDGE # (3) TFF_VC1
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(
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(
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.Clock( Clock ),
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.Clock( Clock ),
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.Reset( iTrigger_TFF ),
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.Reset( iTrigger_TFF ),
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.Initial( 3'b0 ),
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.Initial( 3'b0 ),
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.Enable( IncTextureCount ),
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.Enable( IncTextureCount ),
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.Q( wTextureCount )
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.Q( wTextureCount )
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);
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);
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//-----------------------------
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//-----------------------------
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assign oRAMTextureStoreLocation = `CREG_TEX_COLOR1;
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assign oRAMTextureStoreLocation = `CREG_TEX_COLOR1;
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/*
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/*
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UPCOUNTER_POSEDGE # (16) TNF_TFU_2
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UPCOUNTER_POSEDGE # (16) TNF_TFU_2
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(
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(
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.Clock( Clock ),
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.Clock( Clock ),
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.Reset( iTrigger_TFF ),
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.Reset( iTrigger_TFF ),
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.Initial( `CREG_TEX_COLOR1 ),
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.Initial( `CREG_TEX_COLOR1 ),
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.Enable( //IncTextureWriteAddress ),
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.Enable( //IncTextureWriteAddress ),
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.Q( oRAMTextureStoreLocation )
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.Q( oRAMTextureStoreLocation )
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);
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);
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*/
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*/
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//----------------------------------------
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//----------------------------------------
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`define GFSM_SELECT_TFU 2'b00 //Triangle Fetch
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`define GFSM_SELECT_TFU 2'b00 //Triangle Fetch
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`define GFSM_SELECT_TFF 2'b01 //Texture Fetch
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`define GFSM_SELECT_TFF 2'b01 //Texture Fetch
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`define GFSM_SELECT_TNF 2'b10 //Tree node fetch
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`define GFSM_SELECT_TNF 2'b10 //Tree node fetch
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`define GFSM_SELECT_NULL 2'b11
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`define GFSM_SELECT_NULL 2'b11
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//------------------------------------------------
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//------------------------------------------------
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always @(posedge Clock or posedge Reset)
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always @(posedge Clock or posedge Reset)
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begin
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begin
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if (Reset)
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if (Reset)
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CurrentState <= `GFSM_AFTER_RESET;
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CurrentState <= `GFSM_AFTER_RESET;
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else
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else
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CurrentState <= NextState;
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CurrentState <= NextState;
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end
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end
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//------------------------------------------------
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//------------------------------------------------
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always @( * )
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always @( * )
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begin
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begin
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case (CurrentState)
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case (CurrentState)
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//------------------------------------------
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//------------------------------------------
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`GFSM_AFTER_RESET:
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`GFSM_AFTER_RESET:
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begin
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begin
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oNodeAddress <= 0;
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oNodeAddress <= 0;
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oRequest_AABBIU <= 0;
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oRequest_AABBIU <= 0;
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oRequest_BIU <= 0;
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oRequest_BIU <= 0;
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oTrigger_TFU <= 0;
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oTrigger_TFU <= 0;
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oTrigger_TNF <= 0;
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oTrigger_TNF <= 0;
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ClearTriangleCount <= 0;
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ClearTriangleCount <= 0;
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IncTriangleCount <= 0;
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IncTriangleCount <= 0;
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oWBM_Addr_Selector <= `GFSM_SELECT_NULL;
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oWBM_Addr_Selector <= `GFSM_SELECT_NULL;
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oSync <= 0;
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oSync <= 0;
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oDone <= 0;
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oDone <= 0;
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oSetTFUAddressOffset <= 0;
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oSetTFUAddressOffset <= 0;
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oRequest_TCC <= 0;
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oRequest_TCC <= 0;
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IncTextureCoordRegrAddr <= 0;
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IncTextureCoordRegrAddr <= 0;
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oSetIOWriteBackAddr <= 0;
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oSetIOWriteBackAddr <= 0;
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//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
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//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
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NextState <= `GFSM_INITIAL_STATE;
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NextState <= `GFSM_INITIAL_STATE;
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end
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end
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//------------------------------------------
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//------------------------------------------
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/*
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/*
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Here two things ca happen:
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Here two things ca happen:
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1) We are onGeometry Fetch Mode (iTrigger_TFF == 0)
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1) We are onGeometry Fetch Mode (iTrigger_TFF == 0)
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then get the first node in the Octant Tree, or,
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then get the first node in the Octant Tree, or,
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2)We are on Texture Fetch Mode (iTrigger_TFF == 1)
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2)We are on Texture Fetch Mode (iTrigger_TFF == 1)
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then do texture fetch stuff...
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then do texture fetch stuff...
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*/
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*/
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`GFSM_INITIAL_STATE:
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`GFSM_INITIAL_STATE:
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begin
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begin
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oNodeAddress <= 0;
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oNodeAddress <= 0;
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oRequest_AABBIU <= 0;
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oRequest_AABBIU <= 0;
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oRequest_BIU <= 0;
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oRequest_BIU <= 0;
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oTrigger_TFU <= 0;
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oTrigger_TFU <= 0;
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oTrigger_TNF <= 0;
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oTrigger_TNF <= 0;
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ClearTriangleCount <= 1; //*
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ClearTriangleCount <= 1; //*
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IncTriangleCount <= 0;
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IncTriangleCount <= 0;
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oWBM_Addr_Selector <= `GFSM_SELECT_NULL;
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oWBM_Addr_Selector <= `GFSM_SELECT_NULL;
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oSync <= 0;
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oSync <= 0;
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oDone <= 0;
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oDone <= 0;
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oSetTFUAddressOffset <= 0;
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oSetTFUAddressOffset <= 0;
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oRequest_TCC <= 0;
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oRequest_TCC <= 0;
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IncTextureCoordRegrAddr <= 0;
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IncTextureCoordRegrAddr <= 0;
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oSetIOWriteBackAddr <= 0;
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oSetIOWriteBackAddr <= 0;
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//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
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//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
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if ( iEnable && !iTrigger_TFF )
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if ( iEnable && !iTrigger_TFF )
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NextState <= `GFSM_TRIGGER_ROOT_NODE_FETCH;
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NextState <= `GFSM_TRIGGER_ROOT_NODE_FETCH;
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else if (iEnable && iTrigger_TFF)
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else if (iEnable && iTrigger_TFF)
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NextState <= `GFSM_SET_WBM_INITIAL_ADDRESS;
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NextState <= `GFSM_SET_WBM_INITIAL_ADDRESS;
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else
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else
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NextState <= `GFSM_INITIAL_STATE;
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NextState <= `GFSM_INITIAL_STATE;
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end
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end
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//------------------------------------------
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//------------------------------------------
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`GFSM_SET_WBM_INITIAL_ADDRESS:
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`GFSM_SET_WBM_INITIAL_ADDRESS:
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begin
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begin
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oNodeAddress <= 0;
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oNodeAddress <= 0;
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oRequest_AABBIU <= 0;
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oRequest_AABBIU <= 0;
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oRequest_BIU <= 0;
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oRequest_BIU <= 0;
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oTrigger_TFU <= 0;
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oTrigger_TFU <= 0;
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oTrigger_TNF <= 0;
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oTrigger_TNF <= 0;
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ClearTriangleCount <= 0;
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ClearTriangleCount <= 0;
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IncTriangleCount <= 0;
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IncTriangleCount <= 0;
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oWBM_Addr_Selector <= `GFSM_SELECT_TFF;
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oWBM_Addr_Selector <= `GFSM_SELECT_TFF;
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oSync <= 0;
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oSync <= 0;
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oDone <= 0;
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oDone <= 0;
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oSetTFUAddressOffset <= 0;
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oSetTFUAddressOffset <= 0;
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oRequest_TCC <= 0;
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oRequest_TCC <= 0;
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oEnable_WBM <= 0;
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oEnable_WBM <= 0;
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oSetAddressWBM <= 1; //*
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oSetAddressWBM <= 1; //*
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oSetIOWriteBackAddr <= 1; //Make sure we set write back address
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oSetIOWriteBackAddr <= 1; //Make sure we set write back address
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//IncTextureWriteAddress <= 0;
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//IncTextureWriteAddress <= 0;
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IncTextureCount <= 0;
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IncTextureCount <= 0;
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IncTextureCoordRegrAddr <= 0;
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IncTextureCoordRegrAddr <= 0;
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//oRAMTextureStoreLocation <= `CREG_TEX_COLOR1;
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//oRAMTextureStoreLocation <= `CREG_TEX_COLOR1;
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NextState <= `GFSM_REQUEST_TEXTURE;
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NextState <= `GFSM_REQUEST_TEXTURE;
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end
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end
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//------------------------------------
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//------------------------------------
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`GFSM_REQUEST_TEXTURE:
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`GFSM_REQUEST_TEXTURE:
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begin
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begin
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oNodeAddress <= 0;
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oNodeAddress <= 0;
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oRequest_AABBIU <= 0;
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oRequest_AABBIU <= 0;
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oRequest_BIU <= 0;
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oRequest_BIU <= 0;
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oTrigger_TFU <= 0;
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oTrigger_TFU <= 0;
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oTrigger_TNF <= 0;
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oTrigger_TNF <= 0;
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ClearTriangleCount <= 0;
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ClearTriangleCount <= 0;
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IncTriangleCount <= 0;
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IncTriangleCount <= 0;
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oWBM_Addr_Selector <= `GFSM_SELECT_TFF;
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oWBM_Addr_Selector <= `GFSM_SELECT_TFF;
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oSync <= 0;
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oSync <= 0;
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oDone <= 0;
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oDone <= 0;
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oSetTFUAddressOffset <= 0;
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oSetTFUAddressOffset <= 0;
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oRequest_TCC <= 0;
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oRequest_TCC <= 0;
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|
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// $display("GFSM_REQUEST_TEXTURE: Texture Addr in Reg: %d",oAddressWBM);
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// $display("GFSM_REQUEST_TEXTURE: Texture Addr in Reg: %d",oAddressWBM);
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oEnable_WBM <= 1; //*
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oEnable_WBM <= 1; //*
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oSetAddressWBM <= 0;
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oSetAddressWBM <= 0;
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//IncTextureWriteAddress <= 0;
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//IncTextureWriteAddress <= 0;
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IncTextureCount <= 0; //*
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IncTextureCount <= 0; //*
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IncTextureCoordRegrAddr <= 0;
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IncTextureCoordRegrAddr <= 0;
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oSetIOWriteBackAddr <= 0;
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oSetIOWriteBackAddr <= 0;
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//oRAMTextureStoreLocation <= `CREG_TEX_COLOR1;
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//oRAMTextureStoreLocation <= `CREG_TEX_COLOR1;
|
|
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NextState <= `GFSM_WAIT_FOR_TEXTURE;
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NextState <= `GFSM_WAIT_FOR_TEXTURE;
|
end
|
end
|
//------------------------------------
|
//------------------------------------
|
`GFSM_WAIT_FOR_TEXTURE:
|
`GFSM_WAIT_FOR_TEXTURE:
|
begin
|
begin
|
oNodeAddress <= 0;
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oNodeAddress <= 0;
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oRequest_AABBIU <= 0;
|
oRequest_AABBIU <= 0;
|
oRequest_BIU <= 0;
|
oRequest_BIU <= 0;
|
oTrigger_TFU <= 0;
|
oTrigger_TFU <= 0;
|
oTrigger_TNF <= 0;
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oTrigger_TNF <= 0;
|
ClearTriangleCount <= 0;
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ClearTriangleCount <= 0;
|
IncTriangleCount <= 0;
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IncTriangleCount <= 0;
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oWBM_Addr_Selector <= `GFSM_SELECT_TFF;
|
oWBM_Addr_Selector <= `GFSM_SELECT_TFF;
|
oSync <= 0;
|
oSync <= 0;
|
oDone <= 0;
|
oDone <= 0;
|
oSetTFUAddressOffset <= 0;
|
oSetTFUAddressOffset <= 0;
|
oRequest_TCC <= 0;
|
oRequest_TCC <= 0;
|
|
|
|
|
oEnable_WBM <= 1;
|
oEnable_WBM <= 1;
|
oSetAddressWBM <= 0;
|
oSetAddressWBM <= 0;
|
//IncTextureWriteAddress <= 0;
|
//IncTextureWriteAddress <= 0;
|
IncTextureCount <= 0;
|
IncTextureCount <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
//oRAMTextureStoreLocation <= `CREG_TEX_COLOR1;
|
//oRAMTextureStoreLocation <= `CREG_TEX_COLOR1;
|
|
|
if ( iDataAvailable )
|
if ( iDataAvailable )
|
NextState <= `GFSM_INC_TEXTURE_ADDRESS;
|
NextState <= `GFSM_INC_TEXTURE_ADDRESS;
|
else
|
else
|
NextState <= `GFSM_WAIT_FOR_TEXTURE;
|
NextState <= `GFSM_WAIT_FOR_TEXTURE;
|
|
|
end
|
end
|
//------------------------------------
|
//------------------------------------
|
`GFSM_INC_TEXTURE_ADDRESS:
|
`GFSM_INC_TEXTURE_ADDRESS:
|
begin
|
begin
|
// $display("***** GFSM_REQUEST_NEXT_TEXTURE: Texture Addr in Reg: %d",oAddressWBM);
|
// $display("***** GFSM_REQUEST_NEXT_TEXTURE: Texture Addr in Reg: %d",oAddressWBM);
|
oNodeAddress <= 0;
|
oNodeAddress <= 0;
|
oRequest_AABBIU <= 0;
|
oRequest_AABBIU <= 0;
|
oRequest_BIU <= 0;
|
oRequest_BIU <= 0;
|
oTrigger_TFU <= 0;
|
oTrigger_TFU <= 0;
|
oTrigger_TNF <= 0;
|
oTrigger_TNF <= 0;
|
ClearTriangleCount <= 0;
|
ClearTriangleCount <= 0;
|
IncTriangleCount <= 0;
|
IncTriangleCount <= 0;
|
oWBM_Addr_Selector <= `GFSM_SELECT_TFF;
|
oWBM_Addr_Selector <= `GFSM_SELECT_TFF;
|
oSync <= 0;
|
oSync <= 0;
|
oDone <= 0;
|
oDone <= 0;
|
oSetTFUAddressOffset <= 0;
|
oSetTFUAddressOffset <= 0;
|
oRequest_TCC <= 0;
|
oRequest_TCC <= 0;
|
|
|
oEnable_WBM <= 0;
|
oEnable_WBM <= 0;
|
oSetAddressWBM <= 0;
|
oSetAddressWBM <= 0;
|
IncTextureCount <= 1;
|
IncTextureCount <= 1;
|
//IncTextureWriteAddress <= 0;//1;
|
//IncTextureWriteAddress <= 0;//1;
|
IncTextureCoordRegrAddr <= 1; //*
|
IncTextureCoordRegrAddr <= 1; //*
|
oSetIOWriteBackAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
//oRAMTextureStoreLocation <= `CREG_TEX_COLOR4;
|
//oRAMTextureStoreLocation <= `CREG_TEX_COLOR4;
|
|
|
NextState <= `GFSM_SET_NEXT_TEXTURE_ADDR;
|
NextState <= `GFSM_SET_NEXT_TEXTURE_ADDR;
|
end
|
end
|
//------------------------------------
|
//------------------------------------
|
`GFSM_SET_NEXT_TEXTURE_ADDR:
|
`GFSM_SET_NEXT_TEXTURE_ADDR:
|
begin
|
begin
|
|
|
// $display("***** GFSM_REQUEST_NEXT_TEXTURE: Texture Addr in Reg: %d",oAddressWBM);
|
// $display("***** GFSM_REQUEST_NEXT_TEXTURE: Texture Addr in Reg: %d",oAddressWBM);
|
oNodeAddress <= 0;
|
oNodeAddress <= 0;
|
oRequest_AABBIU <= 0;
|
oRequest_AABBIU <= 0;
|
oRequest_BIU <= 0;
|
oRequest_BIU <= 0;
|
oTrigger_TFU <= 0;
|
oTrigger_TFU <= 0;
|
oTrigger_TNF <= 0;
|
oTrigger_TNF <= 0;
|
ClearTriangleCount <= 0;
|
ClearTriangleCount <= 0;
|
IncTriangleCount <= 0;
|
IncTriangleCount <= 0;
|
oWBM_Addr_Selector <= `GFSM_SELECT_TFF;
|
oWBM_Addr_Selector <= `GFSM_SELECT_TFF;
|
oSync <= 0;
|
oSync <= 0;
|
oDone <= 0;
|
oDone <= 0;
|
oSetTFUAddressOffset <= 0;
|
oSetTFUAddressOffset <= 0;
|
oRequest_TCC <= 0;
|
oRequest_TCC <= 0;
|
|
|
oEnable_WBM <= 0; //*
|
oEnable_WBM <= 0; //*
|
oSetAddressWBM <= 1;
|
oSetAddressWBM <= 1;
|
IncTextureCount <= 0; //*
|
IncTextureCount <= 0; //*
|
IncTextureCoordRegrAddr <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
//oRAMTextureStoreLocation <= `CREG_TEX_COLOR4;
|
//oRAMTextureStoreLocation <= `CREG_TEX_COLOR4;
|
|
|
|
|
NextState <= `GFSM_REQUEST_NEXT_TEXTURE;
|
NextState <= `GFSM_REQUEST_NEXT_TEXTURE;
|
end
|
end
|
//------------------------------------
|
//------------------------------------
|
/*
|
/*
|
We request 6 textures (ie. six colors from
|
We request 6 textures (ie. six colors from
|
the texture coordinates, it should be actually 4
|
the texture coordinates, it should be actually 4
|
instead of 6, but the hardwardware works better
|
instead of 6, but the hardwardware works better
|
with numbers that are power of 3. But read 3 at
|
with numbers that are power of 3. But read 3 at
|
a time, so when TextureCount Reaches 2 then we
|
a time, so when TextureCount Reaches 2 then we
|
are done
|
are done
|
*/
|
*/
|
`GFSM_REQUEST_NEXT_TEXTURE:
|
`GFSM_REQUEST_NEXT_TEXTURE:
|
begin
|
begin
|
|
|
// $display("***** GFSM_REQUEST_NEXT_TEXTURE: Texture Addr in Reg: %d",oAddressWBM);
|
// $display("***** GFSM_REQUEST_NEXT_TEXTURE: Texture Addr in Reg: %d",oAddressWBM);
|
oNodeAddress <= 0;
|
oNodeAddress <= 0;
|
oRequest_AABBIU <= 0;
|
oRequest_AABBIU <= 0;
|
oRequest_BIU <= 0;
|
oRequest_BIU <= 0;
|
oTrigger_TFU <= 0;
|
oTrigger_TFU <= 0;
|
oTrigger_TNF <= 0;
|
oTrigger_TNF <= 0;
|
ClearTriangleCount <= 0;
|
ClearTriangleCount <= 0;
|
IncTriangleCount <= 0;
|
IncTriangleCount <= 0;
|
oWBM_Addr_Selector <= `GFSM_SELECT_TFF;
|
oWBM_Addr_Selector <= `GFSM_SELECT_TFF;
|
oSync <= 0;
|
oSync <= 0;
|
oDone <= 0;
|
oDone <= 0;
|
oSetTFUAddressOffset <= 0;
|
oSetTFUAddressOffset <= 0;
|
oRequest_TCC <= 0;
|
oRequest_TCC <= 0;
|
|
|
oEnable_WBM <= 1; //*
|
oEnable_WBM <= 1; //*
|
oSetAddressWBM <= 0;
|
oSetAddressWBM <= 0;
|
IncTextureCount <= 1; //*
|
IncTextureCount <= 1; //*
|
IncTextureCoordRegrAddr <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
//oRAMTextureStoreLocation <= `CREG_TEX_COLOR4;
|
//oRAMTextureStoreLocation <= `CREG_TEX_COLOR4;
|
|
|
|
|
NextState <= `GFSM_WAIT_FOR_NEXT_TEXTURE;
|
NextState <= `GFSM_WAIT_FOR_NEXT_TEXTURE;
|
end
|
end
|
|
|
//----------------------------------------
|
//----------------------------------------
|
`GFSM_WAIT_FOR_NEXT_TEXTURE:
|
`GFSM_WAIT_FOR_NEXT_TEXTURE:
|
begin
|
begin
|
oNodeAddress <= 0;
|
oNodeAddress <= 0;
|
oRequest_AABBIU <= 0;
|
oRequest_AABBIU <= 0;
|
oRequest_BIU <= 0;
|
oRequest_BIU <= 0;
|
oTrigger_TFU <= 0;
|
oTrigger_TFU <= 0;
|
oTrigger_TNF <= 0;
|
oTrigger_TNF <= 0;
|
ClearTriangleCount <= 0;
|
ClearTriangleCount <= 0;
|
IncTriangleCount <= 0;
|
IncTriangleCount <= 0;
|
oWBM_Addr_Selector <= `GFSM_SELECT_TFF;
|
oWBM_Addr_Selector <= `GFSM_SELECT_TFF;
|
oSync <= 0;
|
oSync <= 0;
|
oDone <= 0;
|
oDone <= 0;
|
oSetTFUAddressOffset <= 0;
|
oSetTFUAddressOffset <= 0;
|
oRequest_TCC <= 0;
|
oRequest_TCC <= 0;
|
|
|
|
|
oEnable_WBM <= 1;
|
oEnable_WBM <= 1;
|
oSetAddressWBM <= 0;
|
oSetAddressWBM <= 0;
|
IncTextureCount <= 0; //*
|
IncTextureCount <= 0; //*
|
IncTextureCoordRegrAddr <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
//oRAMTextureStoreLocation <= `CREG_TEX_COLOR4;
|
//oRAMTextureStoreLocation <= `CREG_TEX_COLOR4;
|
|
|
if ( iDataAvailable )
|
if ( iDataAvailable )
|
NextState <= `GFSM_DONE;
|
NextState <= `GFSM_DONE;
|
else
|
else
|
NextState <= `GFSM_WAIT_FOR_NEXT_TEXTURE;
|
NextState <= `GFSM_WAIT_FOR_NEXT_TEXTURE;
|
|
|
end
|
end
|
/****************************************/
|
/****************************************/
|
/*
|
/*
|
Texture Fetch Logic Ends Here.
|
Texture Fetch Logic Ends Here.
|
Geometry Fetch Logic Starts Here (Duh!)
|
Geometry Fetch Logic Starts Here (Duh!)
|
*/
|
*/
|
//------------------------------------
|
//------------------------------------
|
/*
|
/*
|
Lets request the Root Node read in here.
|
Lets request the Root Node read in here.
|
The tree node function will fetch info such as
|
The tree node function will fetch info such as
|
the type of node, the address of the first
|
the type of node, the address of the first
|
data block as well as the boundaries of the
|
data block as well as the boundaries of the
|
AABB.
|
AABB.
|
*/
|
*/
|
`GFSM_TRIGGER_ROOT_NODE_FETCH:
|
`GFSM_TRIGGER_ROOT_NODE_FETCH:
|
begin
|
begin
|
// $display("GFSM_TRIGGER_ROOT_NODE_FETCH");
|
// $display("GFSM_TRIGGER_ROOT_NODE_FETCH");
|
oNodeAddress <= 0; //Address of root node is always zero
|
oNodeAddress <= 0; //Address of root node is always zero
|
oRequest_AABBIU <= 0;
|
oRequest_AABBIU <= 0;
|
oRequest_BIU <= 0;
|
oRequest_BIU <= 0;
|
oTrigger_TFU <= 0;
|
oTrigger_TFU <= 0;
|
oTrigger_TNF <= 1; //*
|
oTrigger_TNF <= 1; //*
|
ClearTriangleCount <= 0;
|
ClearTriangleCount <= 0;
|
IncTriangleCount <= 0;
|
IncTriangleCount <= 0;
|
oWBM_Addr_Selector <= `GFSM_SELECT_TNF;
|
oWBM_Addr_Selector <= `GFSM_SELECT_TNF;
|
oSync <= 0;
|
oSync <= 0;
|
oDone <= 0;
|
oDone <= 0;
|
oSetTFUAddressOffset <= 0;
|
oSetTFUAddressOffset <= 0;
|
oRequest_TCC <= 0;
|
oRequest_TCC <= 0;
|
|
|
oEnable_WBM <= 0;
|
oEnable_WBM <= 0;
|
oSetAddressWBM <= 0;
|
oSetAddressWBM <= 0;
|
//IncTextureWriteAddress <= 0;
|
//IncTextureWriteAddress <= 0;
|
IncTextureCount <= 0;
|
IncTextureCount <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
|
//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
|
|
|
NextState <= `GFSM_WAIT_FOR_ROOT_NODE_FETCH;
|
NextState <= `GFSM_WAIT_FOR_ROOT_NODE_FETCH;
|
|
|
end
|
end
|
//------------------------------------------
|
//------------------------------------------
|
/*
|
/*
|
OK once we have the data the first ting is
|
OK once we have the data the first ting is
|
to test if the ray hits the AABB.
|
to test if the ray hits the AABB.
|
*/
|
*/
|
`GFSM_WAIT_FOR_ROOT_NODE_FETCH:
|
`GFSM_WAIT_FOR_ROOT_NODE_FETCH:
|
begin
|
begin
|
|
|
oNodeAddress <= 0;
|
oNodeAddress <= 0;
|
oRequest_AABBIU <= 0;
|
oRequest_AABBIU <= 0;
|
oRequest_BIU <= 0;
|
oRequest_BIU <= 0;
|
oTrigger_TFU <= 0;
|
oTrigger_TFU <= 0;
|
oTrigger_TNF <= 0;//*
|
oTrigger_TNF <= 0;//*
|
ClearTriangleCount <= 0;
|
ClearTriangleCount <= 0;
|
IncTriangleCount <= 0;
|
IncTriangleCount <= 0;
|
oWBM_Addr_Selector <= `GFSM_SELECT_TNF;
|
oWBM_Addr_Selector <= `GFSM_SELECT_TNF;
|
oSync <= 0;
|
oSync <= 0;
|
oDone <= 0;
|
oDone <= 0;
|
oSetTFUAddressOffset <= 0;
|
oSetTFUAddressOffset <= 0;
|
oRequest_TCC <= 0;
|
oRequest_TCC <= 0;
|
|
|
oEnable_WBM <= 0;
|
oEnable_WBM <= 0;
|
oSetAddressWBM <= 0;
|
oSetAddressWBM <= 0;
|
//IncTextureWriteAddress <= 0;
|
//IncTextureWriteAddress <= 0;
|
IncTextureCount <= 0;
|
IncTextureCount <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
|
//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
|
|
|
if (iNodeReadDone)
|
if (iNodeReadDone)
|
NextState <= `GFSM_TRIGGER_AABBIU;
|
NextState <= `GFSM_TRIGGER_AABBIU;
|
else
|
else
|
NextState <= `GFSM_WAIT_FOR_ROOT_NODE_FETCH;
|
NextState <= `GFSM_WAIT_FOR_ROOT_NODE_FETCH;
|
end
|
end
|
//------------------------------------------
|
//------------------------------------------
|
`GFSM_TRIGGER_AABBIU:
|
`GFSM_TRIGGER_AABBIU:
|
begin
|
begin
|
// $display("GFSM_TRIGGER_AABBIU");
|
// $display("GFSM_TRIGGER_AABBIU");
|
oNodeAddress <= 0;
|
oNodeAddress <= 0;
|
oRequest_AABBIU <= 1; //*
|
oRequest_AABBIU <= 1; //*
|
oRequest_BIU <= 0;
|
oRequest_BIU <= 0;
|
oTrigger_TFU <= 0;
|
oTrigger_TFU <= 0;
|
oTrigger_TNF <= 0;
|
oTrigger_TNF <= 0;
|
ClearTriangleCount <= 0;
|
ClearTriangleCount <= 0;
|
IncTriangleCount <= 0;
|
IncTriangleCount <= 0;
|
oWBM_Addr_Selector <= `GFSM_SELECT_NULL;
|
oWBM_Addr_Selector <= `GFSM_SELECT_NULL;
|
oSync <= 1; //*
|
oSync <= 1; //*
|
oDone <= 0;
|
oDone <= 0;
|
oSetTFUAddressOffset <= 0;
|
oSetTFUAddressOffset <= 0;
|
oRequest_TCC <= 0;
|
oRequest_TCC <= 0;
|
|
|
oEnable_WBM <= 0;
|
oEnable_WBM <= 0;
|
oSetAddressWBM <= 0;
|
oSetAddressWBM <= 0;
|
//IncTextureWriteAddress <= 0;
|
//IncTextureWriteAddress <= 0;
|
IncTextureCount <= 0;
|
IncTextureCount <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
|
//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
|
|
|
NextState <= `GFSM_WAIT_FOR_AABBIU;
|
NextState <= `GFSM_WAIT_FOR_AABBIU;
|
end
|
end
|
//------------------------------------------
|
//------------------------------------------
|
`GFSM_WAIT_FOR_AABBIU:
|
`GFSM_WAIT_FOR_AABBIU:
|
begin
|
begin
|
|
|
oNodeAddress <= 0;
|
oNodeAddress <= 0;
|
oRequest_AABBIU <= 1;
|
oRequest_AABBIU <= 1;
|
oRequest_BIU <= 0;
|
oRequest_BIU <= 0;
|
oTrigger_TFU <= 0;
|
oTrigger_TFU <= 0;
|
oTrigger_TNF <= 0;
|
oTrigger_TNF <= 0;
|
ClearTriangleCount <= 0;
|
ClearTriangleCount <= 0;
|
IncTriangleCount <= 0;
|
IncTriangleCount <= 0;
|
oWBM_Addr_Selector <= `GFSM_SELECT_NULL;
|
oWBM_Addr_Selector <= `GFSM_SELECT_NULL;
|
oSync <= 0;
|
oSync <= 0;
|
oDone <= 0;
|
oDone <= 0;
|
oSetTFUAddressOffset <= 0;
|
oSetTFUAddressOffset <= 0;
|
oRequest_TCC <= 0;
|
oRequest_TCC <= 0;
|
|
|
oEnable_WBM <= 0;
|
oEnable_WBM <= 0;
|
oSetAddressWBM <= 0;
|
oSetAddressWBM <= 0;
|
//IncTextureWriteAddress <= 0;
|
//IncTextureWriteAddress <= 0;
|
IncTextureCount <= 0;
|
IncTextureCount <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
|
//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
|
|
|
if ( iUCodeDone )
|
if ( iUCodeDone )
|
NextState <= `GFSM_ACK_AABBIU;
|
NextState <= `GFSM_ACK_AABBIU;
|
else
|
else
|
NextState <= `GFSM_WAIT_FOR_AABBIU;
|
NextState <= `GFSM_WAIT_FOR_AABBIU;
|
end
|
end
|
//------------------------------------------
|
//------------------------------------------
|
`GFSM_ACK_AABBIU:
|
`GFSM_ACK_AABBIU:
|
begin
|
begin
|
|
|
oNodeAddress <= 0;
|
oNodeAddress <= 0;
|
oRequest_AABBIU <= 0; //*
|
oRequest_AABBIU <= 0; //*
|
oRequest_BIU <= 0;
|
oRequest_BIU <= 0;
|
oTrigger_TFU <= 0;
|
oTrigger_TFU <= 0;
|
oTrigger_TNF <= 0;
|
oTrigger_TNF <= 0;
|
ClearTriangleCount <= 0;
|
ClearTriangleCount <= 0;
|
IncTriangleCount <= 0;
|
IncTriangleCount <= 0;
|
oWBM_Addr_Selector <= `GFSM_SELECT_NULL;
|
oWBM_Addr_Selector <= `GFSM_SELECT_NULL;
|
oSync <= 0;
|
oSync <= 0;
|
oDone <= 0;
|
oDone <= 0;
|
oSetTFUAddressOffset <= 0;
|
oSetTFUAddressOffset <= 0;
|
oRequest_TCC <= 0;
|
oRequest_TCC <= 0;
|
|
|
oEnable_WBM <= 0;
|
oEnable_WBM <= 0;
|
oSetAddressWBM <= 0;
|
oSetAddressWBM <= 0;
|
//IncTextureWriteAddress <= 0;
|
//IncTextureWriteAddress <= 0;
|
IncTextureCount <= 0;
|
IncTextureCount <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
|
//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
|
|
|
if ( iAABBIUHit )
|
if ( iAABBIUHit )
|
NextState <= `GFSM_AABBIU_HIT;
|
NextState <= `GFSM_AABBIU_HIT;
|
else
|
else
|
NextState <= `GFSM_AABBIU_NO_HIT;
|
NextState <= `GFSM_AABBIU_NO_HIT;
|
end
|
end
|
//------------------------------------------
|
//------------------------------------------
|
`GFSM_AABBIU_NO_HIT:
|
`GFSM_AABBIU_NO_HIT:
|
begin
|
begin
|
oNodeAddress <= 0;
|
oNodeAddress <= 0;
|
oRequest_AABBIU <= 0; //*
|
oRequest_AABBIU <= 0; //*
|
oRequest_BIU <= 0;
|
oRequest_BIU <= 0;
|
oTrigger_TFU <= 0;
|
oTrigger_TFU <= 0;
|
oTrigger_TNF <= 0;
|
oTrigger_TNF <= 0;
|
ClearTriangleCount <= 0;
|
ClearTriangleCount <= 0;
|
IncTriangleCount <= 0;
|
IncTriangleCount <= 0;
|
oWBM_Addr_Selector <= `GFSM_SELECT_NULL;
|
oWBM_Addr_Selector <= `GFSM_SELECT_NULL;
|
oSync <= 0;
|
oSync <= 0;
|
oDone <= 0;
|
oDone <= 0;
|
oSetTFUAddressOffset <= 0;
|
oSetTFUAddressOffset <= 0;
|
oRequest_TCC <= 0;
|
oRequest_TCC <= 0;
|
|
|
oEnable_WBM <= 0;
|
oEnable_WBM <= 0;
|
oSetAddressWBM <= 0;
|
oSetAddressWBM <= 0;
|
//IncTextureWriteAddress <= 0;
|
//IncTextureWriteAddress <= 0;
|
IncTextureCount <= 0;
|
IncTextureCount <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
|
//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
|
|
|
|
|
NextState <= `GFSM_DONE;
|
NextState <= `GFSM_DONE;
|
end
|
end
|
//------------------------------------------
|
//------------------------------------------
|
/*
|
/*
|
Ok there is a hit, two things can happen:
|
Ok there is a hit, two things can happen:
|
if the Node is not a leaf, then the child nodes
|
if the Node is not a leaf, then the child nodes
|
need to be tested.
|
need to be tested.
|
Else this node's data linked list needs
|
Else this node's data linked list needs
|
to be tested for instersections.
|
to be tested for instersections.
|
Since we have a new Node, lets start by
|
Since we have a new Node, lets start by
|
reading the first 3 blocks of data. The
|
reading the first 3 blocks of data. The
|
first block is pointed by
|
first block is pointed by
|
'Node_OffsetData_Address'.
|
'Node_OffsetData_Address'.
|
*/
|
*/
|
`GFSM_AABBIU_HIT:
|
`GFSM_AABBIU_HIT:
|
begin
|
begin
|
|
|
oNodeAddress <= 0;
|
oNodeAddress <= 0;
|
oRequest_AABBIU <= 0;
|
oRequest_AABBIU <= 0;
|
oRequest_BIU <= 0;
|
oRequest_BIU <= 0;
|
oTrigger_TFU <= 0;
|
oTrigger_TFU <= 0;
|
oTrigger_TNF <= 0;
|
oTrigger_TNF <= 0;
|
ClearTriangleCount <= 0;
|
ClearTriangleCount <= 0;
|
IncTriangleCount <= 0;
|
IncTriangleCount <= 0;
|
oWBM_Addr_Selector <= `GFSM_SELECT_NULL;
|
oWBM_Addr_Selector <= `GFSM_SELECT_NULL;
|
oSync <= 0;
|
oSync <= 0;
|
oDone <= 0;
|
oDone <= 0;
|
oSetTFUAddressOffset <= 0;
|
oSetTFUAddressOffset <= 0;
|
oRequest_TCC <= 0;
|
oRequest_TCC <= 0;
|
|
|
oEnable_WBM <= 0;
|
oEnable_WBM <= 0;
|
oSetAddressWBM <= 0;
|
oSetAddressWBM <= 0;
|
//IncTextureWriteAddress <= 0;
|
//IncTextureWriteAddress <= 0;
|
IncTextureCount <= 0;
|
IncTextureCount <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
|
//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
|
|
|
if ( iNode_IsLeaf )
|
if ( iNode_IsLeaf )
|
NextState <= `GFSM_SET_TRIANGLE_LIST_INITIAL_OFFSET;
|
NextState <= `GFSM_SET_TRIANGLE_LIST_INITIAL_OFFSET;
|
else
|
else
|
NextState <= `GFSM_GET_FIRST_CHILD;
|
NextState <= `GFSM_GET_FIRST_CHILD;
|
end
|
end
|
//------------------------------------------
|
//------------------------------------------
|
`GFSM_SET_TRIANGLE_LIST_INITIAL_OFFSET:
|
`GFSM_SET_TRIANGLE_LIST_INITIAL_OFFSET:
|
begin
|
begin
|
oNodeAddress <= 0;
|
oNodeAddress <= 0;
|
oRequest_AABBIU <= 0;
|
oRequest_AABBIU <= 0;
|
oRequest_BIU <= 0;
|
oRequest_BIU <= 0;
|
oTrigger_TFU <= 0;
|
oTrigger_TFU <= 0;
|
oTrigger_TNF <= 0;
|
oTrigger_TNF <= 0;
|
ClearTriangleCount <= 0;
|
ClearTriangleCount <= 0;
|
IncTriangleCount <= 0;
|
IncTriangleCount <= 0;
|
oWBM_Addr_Selector <= `GFSM_SELECT_NULL;
|
oWBM_Addr_Selector <= `GFSM_SELECT_NULL;
|
oSync <= 0;
|
oSync <= 0;
|
oDone <= 0;
|
oDone <= 0;
|
oSetTFUAddressOffset <= 1; //*
|
oSetTFUAddressOffset <= 1; //*
|
oRequest_TCC <= 0;
|
oRequest_TCC <= 0;
|
|
|
oEnable_WBM <= 0;
|
oEnable_WBM <= 0;
|
oSetAddressWBM <= 0;
|
oSetAddressWBM <= 0;
|
//IncTextureWriteAddress <= 0;
|
//IncTextureWriteAddress <= 0;
|
IncTextureCount <= 0;
|
IncTextureCount <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
|
//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
|
|
|
NextState <= `GFSM_TRIGGER_TRIANGLE_FETCH;
|
NextState <= `GFSM_TRIGGER_TRIANGLE_FETCH;
|
end
|
end
|
//------------------------------------------
|
//------------------------------------------
|
/*
|
/*
|
Since this node is not a leaf, we keep depth
|
Since this node is not a leaf, we keep depth
|
first deep traversing the hierchy
|
first deep traversing the hierchy
|
*/
|
*/
|
`GFSM_GET_FIRST_CHILD:
|
`GFSM_GET_FIRST_CHILD:
|
begin
|
begin
|
|
|
oRequest_AABBIU <= 0;
|
oRequest_AABBIU <= 0;
|
oNodeAddress <= iNode_FirstChild_Address; //*
|
oNodeAddress <= iNode_FirstChild_Address; //*
|
oRequest_BIU <= 0;
|
oRequest_BIU <= 0;
|
oTrigger_TFU <= 0;
|
oTrigger_TFU <= 0;
|
oTrigger_TNF <= 0;
|
oTrigger_TNF <= 0;
|
oWBM_Addr_Selector <= `GFSM_SELECT_NULL;
|
oWBM_Addr_Selector <= `GFSM_SELECT_NULL;
|
ClearTriangleCount <= 0;
|
ClearTriangleCount <= 0;
|
IncTriangleCount <= 0;
|
IncTriangleCount <= 0;
|
oSync <= 0;
|
oSync <= 0;
|
oDone <= 0;
|
oDone <= 0;
|
oSetTFUAddressOffset <= 0;
|
oSetTFUAddressOffset <= 0;
|
oRequest_TCC <= 0;
|
oRequest_TCC <= 0;
|
|
|
oEnable_WBM <= 0;
|
oEnable_WBM <= 0;
|
oSetAddressWBM <= 0;
|
oSetAddressWBM <= 0;
|
//IncTextureWriteAddress <= 0;
|
//IncTextureWriteAddress <= 0;
|
IncTextureCount <= 0;
|
IncTextureCount <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
|
//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
|
|
|
|
|
NextState <= `GFSM_TRIGGER_NODE_FETCH;
|
NextState <= `GFSM_TRIGGER_NODE_FETCH;
|
end
|
end
|
//------------------------------------------
|
//------------------------------------------
|
/*
|
/*
|
|
|
*/
|
*/
|
`GFSM_CHECK_TRIANGLE_COUNT:
|
`GFSM_CHECK_TRIANGLE_COUNT:
|
begin
|
begin
|
|
|
oNodeAddress <= 0;
|
oNodeAddress <= 0;
|
oRequest_AABBIU <= 0;
|
oRequest_AABBIU <= 0;
|
oRequest_BIU <= 0;
|
oRequest_BIU <= 0;
|
oTrigger_TFU <= 0;
|
oTrigger_TFU <= 0;
|
oTrigger_TNF <= 0;
|
oTrigger_TNF <= 0;
|
ClearTriangleCount <= 0;
|
ClearTriangleCount <= 0;
|
IncTriangleCount <= 0;
|
IncTriangleCount <= 0;
|
oWBM_Addr_Selector <= `GFSM_SELECT_NULL;
|
oWBM_Addr_Selector <= `GFSM_SELECT_NULL;
|
oSync <= 0;
|
oSync <= 0;
|
oDone <= 0;
|
oDone <= 0;
|
oSetTFUAddressOffset <= 0;
|
oSetTFUAddressOffset <= 0;
|
oRequest_TCC <= 0;
|
oRequest_TCC <= 0;
|
|
|
oEnable_WBM <= 0;
|
oEnable_WBM <= 0;
|
oSetAddressWBM <= 0;
|
oSetAddressWBM <= 0;
|
//IncTextureWriteAddress <= 0;
|
//IncTextureWriteAddress <= 0;
|
IncTextureCount <= 0;
|
IncTextureCount <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
|
//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
|
|
|
`ifdef DEBUG2
|
`ifdef DEBUG2
|
$display("Fetching triangle %d of %d ", wTriangleCount,iNode_TriangleCount);
|
$display("Fetching triangle %d of %d ", wTriangleCount,iNode_TriangleCount);
|
`endif
|
`endif
|
|
|
if ( wTriangleCount == iNode_TriangleCount )
|
if ( wTriangleCount == iNode_TriangleCount )
|
NextState <= `GFSM_CHECK_NEXT_BROTHER;
|
NextState <= `GFSM_CHECK_NEXT_BROTHER;
|
else
|
else
|
NextState <= `GFSM_TRIGGER_TRIANGLE_FETCH;
|
NextState <= `GFSM_TRIGGER_TRIANGLE_FETCH;
|
end
|
end
|
//------------------------------------------
|
//------------------------------------------
|
`GFSM_TRIGGER_TRIANGLE_FETCH:
|
`GFSM_TRIGGER_TRIANGLE_FETCH:
|
begin
|
begin
|
|
|
oNodeAddress <= 0;
|
oNodeAddress <= 0;
|
oRequest_AABBIU <= 0;
|
oRequest_AABBIU <= 0;
|
oRequest_BIU <= 0;
|
oRequest_BIU <= 0;
|
oTrigger_TFU <= 1; //*
|
oTrigger_TFU <= 1; //*
|
oTrigger_TNF <= 0;
|
oTrigger_TNF <= 0;
|
ClearTriangleCount <= 0;
|
ClearTriangleCount <= 0;
|
IncTriangleCount <= 0;
|
IncTriangleCount <= 0;
|
oWBM_Addr_Selector <= `GFSM_SELECT_TFU;
|
oWBM_Addr_Selector <= `GFSM_SELECT_TFU;
|
oSync <= 0;
|
oSync <= 0;
|
oDone <= 0;
|
oDone <= 0;
|
oSetTFUAddressOffset <= 0;
|
oSetTFUAddressOffset <= 0;
|
oRequest_TCC <= 0;
|
oRequest_TCC <= 0;
|
|
|
oEnable_WBM <= 0;
|
oEnable_WBM <= 0;
|
oSetAddressWBM <= 0;
|
oSetAddressWBM <= 0;
|
//IncTextureWriteAddress <= 0;
|
//IncTextureWriteAddress <= 0;
|
IncTextureCount <= 0;
|
IncTextureCount <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
|
//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
|
|
|
NextState <= `GFSM_WAIT_FOR_TRIANGLE_FETCH;
|
NextState <= `GFSM_WAIT_FOR_TRIANGLE_FETCH;
|
end
|
end
|
//------------------------------------------
|
//------------------------------------------
|
|
|
/*
|
/*
|
iEnable the data fetch and wait for the
|
iEnable the data fetch and wait for the
|
operation to complete.
|
operation to complete.
|
*/
|
*/
|
`GFSM_WAIT_FOR_TRIANGLE_FETCH:
|
`GFSM_WAIT_FOR_TRIANGLE_FETCH:
|
begin
|
begin
|
|
|
oNodeAddress <= 0;
|
oNodeAddress <= 0;
|
oRequest_AABBIU <= 0;
|
oRequest_AABBIU <= 0;
|
oRequest_BIU <= 0;
|
oRequest_BIU <= 0;
|
oTrigger_TFU <= 0; //*
|
oTrigger_TFU <= 0; //*
|
oTrigger_TNF <= 0;
|
oTrigger_TNF <= 0;
|
ClearTriangleCount <= 0;
|
ClearTriangleCount <= 0;
|
IncTriangleCount <= 0;
|
IncTriangleCount <= 0;
|
oWBM_Addr_Selector <= `GFSM_SELECT_TFU;
|
oWBM_Addr_Selector <= `GFSM_SELECT_TFU;
|
oSync <= 0;
|
oSync <= 0;
|
oDone <= 0;
|
oDone <= 0;
|
oSetTFUAddressOffset <= 0;
|
oSetTFUAddressOffset <= 0;
|
oRequest_TCC <= 0;
|
oRequest_TCC <= 0;
|
|
|
oEnable_WBM <= 0;
|
oEnable_WBM <= 0;
|
oSetAddressWBM <= 0;
|
oSetAddressWBM <= 0;
|
//IncTextureWriteAddress <= 0;
|
//IncTextureWriteAddress <= 0;
|
IncTextureCount <= 0;
|
IncTextureCount <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
|
//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
|
|
|
if ( iTriangleReadDone )
|
if ( iTriangleReadDone )
|
NextState <= `GFSM_TRIGGER_BIU_REQUSET;
|
NextState <= `GFSM_TRIGGER_BIU_REQUSET;
|
else
|
else
|
NextState <= `GFSM_WAIT_FOR_TRIANGLE_FETCH;
|
NextState <= `GFSM_WAIT_FOR_TRIANGLE_FETCH;
|
end
|
end
|
|
|
//------------------------------------------
|
//------------------------------------------
|
/*
|
/*
|
Now that we got the traingle vertices in RAM,
|
Now that we got the traingle vertices in RAM,
|
lets iEnable the BIU micro-code sub.
|
lets iEnable the BIU micro-code sub.
|
*/
|
*/
|
`GFSM_TRIGGER_BIU_REQUSET:
|
`GFSM_TRIGGER_BIU_REQUSET:
|
begin
|
begin
|
|
|
`ifdef DEBUG2
|
`ifdef DEBUG2
|
$display("******* GFSM_TRIGGER_BIU_REQUSET *******");
|
$display("******* GFSM_TRIGGER_BIU_REQUSET *******");
|
`endif
|
`endif
|
|
|
oRequest_AABBIU <= 0;
|
oRequest_AABBIU <= 0;
|
oNodeAddress <= 0;
|
oNodeAddress <= 0;
|
oRequest_BIU <= 1; //*
|
oRequest_BIU <= 1; //*
|
oTrigger_TFU <= 0;
|
oTrigger_TFU <= 0;
|
oTrigger_TNF <= 0;
|
oTrigger_TNF <= 0;
|
IncTriangleCount <= 1; //*
|
IncTriangleCount <= 1; //*
|
ClearTriangleCount <= 0;
|
ClearTriangleCount <= 0;
|
oWBM_Addr_Selector <= `GFSM_SELECT_NULL;
|
oWBM_Addr_Selector <= `GFSM_SELECT_NULL;
|
oSync <= 1;//*
|
oSync <= 1;//*
|
oDone <= 0;
|
oDone <= 0;
|
oSetTFUAddressOffset <= 0;
|
oSetTFUAddressOffset <= 0;
|
oRequest_TCC <= 0;
|
oRequest_TCC <= 0;
|
|
|
oEnable_WBM <= 0;
|
oEnable_WBM <= 0;
|
oSetAddressWBM <= 0;
|
oSetAddressWBM <= 0;
|
//IncTextureWriteAddress <= 0;
|
//IncTextureWriteAddress <= 0;
|
IncTextureCount <= 0;
|
IncTextureCount <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
|
//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
|
|
|
NextState <= `GFSM_WAIT_FOR_BIU;
|
NextState <= `GFSM_WAIT_FOR_BIU;
|
end
|
end
|
//------------------------------------------
|
//------------------------------------------
|
/*
|
/*
|
Once BIU finishes see have a hit.
|
Once BIU finishes see have a hit.
|
There are severals paths to go here depnending on
|
There are severals paths to go here depnending on
|
wethher there was a Hit or Not, and also depending
|
wethher there was a Hit or Not, and also depending
|
on whether we the texturing capability enabled.
|
on whether we the texturing capability enabled.
|
1) If there was a Hit, but the textures are not enabled,
|
1) If there was a Hit, but the textures are not enabled,
|
then keep interating the triangle list.
|
then keep interating the triangle list.
|
2) If there was a Hit and the texturing is enabled,
|
2) If there was a Hit and the texturing is enabled,
|
then go to the state that request the texture
|
then go to the state that request the texture
|
coordiantes calculation
|
coordiantes calculation
|
3) If there was not a Hit, then keep traversong the
|
3) If there was not a Hit, then keep traversong the
|
triangle list.
|
triangle list.
|
4) If there is neither Hit or no-Hit yet, then keep
|
4) If there is neither Hit or no-Hit yet, then keep
|
waiting is this state.
|
waiting is this state.
|
*/
|
*/
|
`GFSM_WAIT_FOR_BIU:
|
`GFSM_WAIT_FOR_BIU:
|
begin
|
begin
|
|
|
oRequest_AABBIU <= 0;
|
oRequest_AABBIU <= 0;
|
oNodeAddress <= 0;
|
oNodeAddress <= 0;
|
oRequest_BIU <= 1; //*
|
oRequest_BIU <= 1; //*
|
oTrigger_TFU <= 0;
|
oTrigger_TFU <= 0;
|
oTrigger_TNF <= 0;
|
oTrigger_TNF <= 0;
|
IncTriangleCount <= 0; //*
|
IncTriangleCount <= 0; //*
|
oWBM_Addr_Selector <= `GFSM_SELECT_NULL;
|
oWBM_Addr_Selector <= `GFSM_SELECT_NULL;
|
ClearTriangleCount <= 0;
|
ClearTriangleCount <= 0;
|
oSync <= 0;
|
oSync <= 0;
|
oDone <= 0;
|
oDone <= 0;
|
oSetTFUAddressOffset <= 0;
|
oSetTFUAddressOffset <= 0;
|
oRequest_TCC <= 0;
|
oRequest_TCC <= 0;
|
|
|
oEnable_WBM <= 0;
|
oEnable_WBM <= 0;
|
oSetAddressWBM <= 0;
|
oSetAddressWBM <= 0;
|
//IncTextureWriteAddress <= 0;
|
//IncTextureWriteAddress <= 0;
|
IncTextureCount <= 0;
|
IncTextureCount <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
|
//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
|
|
|
if (iUCodeDone && iBIUHit && !iTexturingEnable)
|
if (iUCodeDone && iBIUHit && !iTexturingEnable)
|
NextState <= `GFSM_CHECK_TRIANGLE_COUNT;
|
NextState <= `GFSM_CHECK_TRIANGLE_COUNT;
|
else if (iUCodeDone && iBIUHit && iTexturingEnable)
|
else if (iUCodeDone && iBIUHit && iTexturingEnable)
|
NextState <= `GFSM_WAIT_STATE_PRE_TCC;
|
NextState <= `GFSM_WAIT_STATE_PRE_TCC;
|
else if (iUCodeDone && !iBIUHit)
|
else if (iUCodeDone && !iBIUHit)
|
NextState <= `GFSM_CHECK_TRIANGLE_COUNT;
|
NextState <= `GFSM_CHECK_TRIANGLE_COUNT;
|
else
|
else
|
NextState <= `GFSM_WAIT_FOR_BIU;
|
NextState <= `GFSM_WAIT_FOR_BIU;
|
end
|
end
|
//------------------------------------------
|
//------------------------------------------
|
/*
|
/*
|
Need to wait a extra cycle so that control unit will be able
|
Need to wait a extra cycle so that control unit will be able
|
to get into the wait from geo sync state...it sucks I know...
|
to get into the wait from geo sync state...it sucks I know...
|
*/
|
*/
|
`GFSM_WAIT_STATE_PRE_TCC:
|
`GFSM_WAIT_STATE_PRE_TCC:
|
begin
|
begin
|
oRequest_AABBIU <= 0;
|
oRequest_AABBIU <= 0;
|
oNodeAddress <= 0;
|
oNodeAddress <= 0;
|
oRequest_BIU <= 1; //*
|
oRequest_BIU <= 1; //*
|
oTrigger_TFU <= 0;
|
oTrigger_TFU <= 0;
|
oTrigger_TNF <= 0;
|
oTrigger_TNF <= 0;
|
IncTriangleCount <= 0; //*
|
IncTriangleCount <= 0; //*
|
oWBM_Addr_Selector <= `GFSM_SELECT_NULL;
|
oWBM_Addr_Selector <= `GFSM_SELECT_NULL;
|
ClearTriangleCount <= 0;
|
ClearTriangleCount <= 0;
|
oSync <= 0;
|
oSync <= 0;
|
oDone <= 0;
|
oDone <= 0;
|
oSetTFUAddressOffset <= 0;
|
oSetTFUAddressOffset <= 0;
|
oRequest_TCC <= 0;
|
oRequest_TCC <= 0;
|
|
|
oEnable_WBM <= 0;
|
oEnable_WBM <= 0;
|
oSetAddressWBM <= 0;
|
oSetAddressWBM <= 0;
|
//IncTextureWriteAddress <= 0;
|
//IncTextureWriteAddress <= 0;
|
IncTextureCount <= 0;
|
IncTextureCount <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
|
//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
|
|
|
NextState <= `GFSM_REQUEST_TCC;
|
NextState <= `GFSM_REQUEST_TCC;
|
end
|
end
|
//------------------------------------------
|
//------------------------------------------
|
|
|
/*
|
/*
|
This state request CU to trigger TCC, ie the code
|
This state request CU to trigger TCC, ie the code
|
that is responsible of generating the 4
|
that is responsible of generating the 4
|
memory addresses to get the texture coordinates:
|
memory addresses to get the texture coordinates:
|
ie: OREG_TEX_COORD1 and OREG_TEX_COORD2, this coordinates are stored, and
|
ie: OREG_TEX_COORD1 and OREG_TEX_COORD2, this coordinates are stored, and
|
they replace the previous coordinates values only
|
they replace the previous coordinates values only
|
if the current traingle is closer to the camera.
|
if the current traingle is closer to the camera.
|
*/
|
*/
|
`GFSM_REQUEST_TCC:
|
`GFSM_REQUEST_TCC:
|
begin
|
begin
|
|
|
// $display("%d GFSM_REQUEST_TCC",$time);
|
// $display("%d GFSM_REQUEST_TCC",$time);
|
// $display("GFSM_REQUEST_TCC %d oRequest_TCC = %d",$time,oRequest_TCC);
|
// $display("GFSM_REQUEST_TCC %d oRequest_TCC = %d",$time,oRequest_TCC);
|
|
|
|
|
oRequest_AABBIU <= 0;
|
oRequest_AABBIU <= 0;
|
oNodeAddress <= 0;
|
oNodeAddress <= 0;
|
oRequest_BIU <= 0;
|
oRequest_BIU <= 0;
|
oTrigger_TFU <= 0;
|
oTrigger_TFU <= 0;
|
oTrigger_TNF <= 0;
|
oTrigger_TNF <= 0;
|
IncTriangleCount <= 0;
|
IncTriangleCount <= 0;
|
oWBM_Addr_Selector <= `GFSM_SELECT_NULL;
|
oWBM_Addr_Selector <= `GFSM_SELECT_NULL;
|
ClearTriangleCount <= 0;
|
ClearTriangleCount <= 0;
|
oSync <= 1; //*
|
oSync <= 1; //*
|
oDone <= 0;
|
oDone <= 0;
|
oSetTFUAddressOffset <= 0;
|
oSetTFUAddressOffset <= 0;
|
oRequest_TCC <= 1; //*
|
oRequest_TCC <= 1; //*
|
|
|
oEnable_WBM <= 0;
|
oEnable_WBM <= 0;
|
oSetAddressWBM <= 0;
|
oSetAddressWBM <= 0;
|
//IncTextureWriteAddress <= 0;
|
//IncTextureWriteAddress <= 0;
|
IncTextureCount <= 0;
|
IncTextureCount <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
|
//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
|
|
|
|
|
NextState <= `GFSM_WAIT_FOR_TCC;
|
NextState <= `GFSM_WAIT_FOR_TCC;
|
|
|
end
|
end
|
//------------------------------------------
|
//------------------------------------------
|
/*
|
/*
|
If the textures coordinates are calculted then
|
If the textures coordinates are calculted then
|
move into the next triangle.
|
move into the next triangle.
|
*/
|
*/
|
`GFSM_WAIT_FOR_TCC:
|
`GFSM_WAIT_FOR_TCC:
|
begin
|
begin
|
|
|
// $display("GFSM_WAIT_FOR_TCC %d oSync = %d",$time,oSync);
|
// $display("GFSM_WAIT_FOR_TCC %d oSync = %d",$time,oSync);
|
// $display("GFSM_WAIT_FOR_TCC %d oRequest_TCC = %d",$time,oRequest_TCC);
|
// $display("GFSM_WAIT_FOR_TCC %d oRequest_TCC = %d",$time,oRequest_TCC);
|
|
|
oRequest_AABBIU <= 0;
|
oRequest_AABBIU <= 0;
|
oNodeAddress <= 0;
|
oNodeAddress <= 0;
|
oRequest_BIU <= 0;
|
oRequest_BIU <= 0;
|
oTrigger_TFU <= 0;
|
oTrigger_TFU <= 0;
|
oTrigger_TNF <= 0;
|
oTrigger_TNF <= 0;
|
IncTriangleCount <= 0;
|
IncTriangleCount <= 0;
|
oWBM_Addr_Selector <= `GFSM_SELECT_NULL;
|
oWBM_Addr_Selector <= `GFSM_SELECT_NULL;
|
ClearTriangleCount <= 0;
|
ClearTriangleCount <= 0;
|
oSync <= 0;
|
oSync <= 0;
|
oDone <= 0;
|
oDone <= 0;
|
oSetTFUAddressOffset <= 0;
|
oSetTFUAddressOffset <= 0;
|
oRequest_TCC <= 1;
|
oRequest_TCC <= 1;
|
|
|
oEnable_WBM <= 0;
|
oEnable_WBM <= 0;
|
oSetAddressWBM <= 0;
|
oSetAddressWBM <= 0;
|
//IncTextureWriteAddress <= 0;
|
//IncTextureWriteAddress <= 0;
|
IncTextureCount <= 0;
|
IncTextureCount <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
|
//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
|
|
|
if (iUCodeDone)
|
if (iUCodeDone)
|
NextState <= `GFSM_CHECK_TRIANGLE_COUNT;
|
NextState <= `GFSM_CHECK_TRIANGLE_COUNT;
|
else
|
else
|
NextState <= `GFSM_WAIT_FOR_TCC;
|
NextState <= `GFSM_WAIT_FOR_TCC;
|
end
|
end
|
//------------------------------------------
|
//------------------------------------------
|
/* `GFM_TRIGGER_TEXTURE_FETCH:
|
/* `GFM_TRIGGER_TEXTURE_FETCH:
|
begin
|
begin
|
oRequest_AABBIU <= 0;
|
oRequest_AABBIU <= 0;
|
oNodeAddress <= 0;
|
oNodeAddress <= 0;
|
oRequest_BIU <= 0;
|
oRequest_BIU <= 0;
|
oTrigger_TFU <= 0;
|
oTrigger_TFU <= 0;
|
oTrigger_TNF <= 0;
|
oTrigger_TNF <= 0;
|
IncTriangleCount <= 0;
|
IncTriangleCount <= 0;
|
oWBM_Addr_Selector <= 0;
|
oWBM_Addr_Selector <= 0;
|
ClearTriangleCount <= 0;
|
ClearTriangleCount <= 0;
|
oSync <= 0;
|
oSync <= 0;
|
oDone <= 0;
|
oDone <= 0;
|
oSetTFUAddressOffset <= 0;
|
oSetTFUAddressOffset <= 0;
|
oTrigger_TFF <= 1;
|
oTrigger_TFF <= 1;
|
|
|
NextState <= `GFSM_WAIT_FOR_TEXTURE_FETCH;
|
NextState <= `GFSM_WAIT_FOR_TEXTURE_FETCH;
|
end
|
end
|
|
|
//------------------------------------------
|
//------------------------------------------
|
`GFSM_WAIT_FOR_TEXTURE_FETCH:
|
`GFSM_WAIT_FOR_TEXTURE_FETCH:
|
begin
|
begin
|
|
|
oRequest_AABBIU <= 0;
|
oRequest_AABBIU <= 0;
|
oNodeAddress <= 0;
|
oNodeAddress <= 0;
|
oRequest_BIU <= 0;
|
oRequest_BIU <= 0;
|
oTrigger_TFU <= 0;
|
oTrigger_TFU <= 0;
|
oTrigger_TNF <= 0;
|
oTrigger_TNF <= 0;
|
IncTriangleCount <= 0;
|
IncTriangleCount <= 0;
|
oWBM_Addr_Selector <= 0;
|
oWBM_Addr_Selector <= 0;
|
ClearTriangleCount <= 0;
|
ClearTriangleCount <= 0;
|
oSync <= 0;
|
oSync <= 0;
|
oDone <= 0;
|
oDone <= 0;
|
oSetTFUAddressOffset <= 0;
|
oSetTFUAddressOffset <= 0;
|
oTrigger_TFF <= 0;
|
oTrigger_TFF <= 0;
|
|
|
if (iTextureReadDone == 1'b1)
|
if (iTextureReadDone == 1'b1)
|
NextState <= `GFSM_CHECK_TRIANGLE_COUNT;
|
NextState <= `GFSM_CHECK_TRIANGLE_COUNT;
|
else
|
else
|
NextState <= `GFSM_WAIT_FOR_TEXTURE_FETCH;
|
NextState <= `GFSM_WAIT_FOR_TEXTURE_FETCH;
|
|
|
end
|
end
|
*/
|
*/
|
//------------------------------------------
|
//------------------------------------------
|
`GFSM_CHECK_NEXT_BROTHER:
|
`GFSM_CHECK_NEXT_BROTHER:
|
begin
|
begin
|
|
|
oRequest_AABBIU <= 0;
|
oRequest_AABBIU <= 0;
|
oNodeAddress <= 0;
|
oNodeAddress <= 0;
|
oRequest_BIU <= 0;
|
oRequest_BIU <= 0;
|
oTrigger_TFU <= 0;
|
oTrigger_TFU <= 0;
|
oTrigger_TNF <= 0;
|
oTrigger_TNF <= 0;
|
IncTriangleCount <= 0; //*
|
IncTriangleCount <= 0; //*
|
oWBM_Addr_Selector <= `GFSM_SELECT_NULL;
|
oWBM_Addr_Selector <= `GFSM_SELECT_NULL;
|
ClearTriangleCount <= 0;
|
ClearTriangleCount <= 0;
|
oSync <= 0;
|
oSync <= 0;
|
oDone <= 0;
|
oDone <= 0;
|
oSetTFUAddressOffset <= 0;
|
oSetTFUAddressOffset <= 0;
|
oRequest_TCC <= 0;
|
oRequest_TCC <= 0;
|
|
|
oEnable_WBM <= 0;
|
oEnable_WBM <= 0;
|
oSetAddressWBM <= 0;
|
oSetAddressWBM <= 0;
|
//IncTextureWriteAddress <= 0;
|
//IncTextureWriteAddress <= 0;
|
IncTextureCount <= 0;
|
IncTextureCount <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
|
//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
|
|
|
if ( iNode_Brother_Address == 0 )
|
if ( iNode_Brother_Address == 0 )
|
NextState <= `GFSM_CHECK_PARENTS_BROTHER;
|
NextState <= `GFSM_CHECK_PARENTS_BROTHER;
|
else
|
else
|
NextState <= `GFSM_GET_BROTHER;
|
NextState <= `GFSM_GET_BROTHER;
|
end
|
end
|
//------------------------------------------
|
//------------------------------------------
|
`GFSM_GET_BROTHER:
|
`GFSM_GET_BROTHER:
|
begin
|
begin
|
|
|
oRequest_AABBIU <= 0;
|
oRequest_AABBIU <= 0;
|
oNodeAddress <= iNode_Brother_Address; //*
|
oNodeAddress <= iNode_Brother_Address; //*
|
oRequest_BIU <= 0;
|
oRequest_BIU <= 0;
|
oTrigger_TFU <= 0;
|
oTrigger_TFU <= 0;
|
oTrigger_TNF <= 0;
|
oTrigger_TNF <= 0;
|
IncTriangleCount <= 0; //*
|
IncTriangleCount <= 0; //*
|
oWBM_Addr_Selector <= `GFSM_SELECT_NULL;
|
oWBM_Addr_Selector <= `GFSM_SELECT_NULL;
|
ClearTriangleCount <= 0;
|
ClearTriangleCount <= 0;
|
oSync <= 0;
|
oSync <= 0;
|
oDone <= 0;
|
oDone <= 0;
|
oSetTFUAddressOffset <= 0;
|
oSetTFUAddressOffset <= 0;
|
oRequest_TCC <= 0;
|
oRequest_TCC <= 0;
|
|
|
oEnable_WBM <= 0;
|
oEnable_WBM <= 0;
|
oSetAddressWBM <= 0;
|
oSetAddressWBM <= 0;
|
//IncTextureWriteAddress <= 0;
|
//IncTextureWriteAddress <= 0;
|
IncTextureCount <= 0;
|
IncTextureCount <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
|
//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
|
|
|
|
|
NextState <= `GFSM_TRIGGER_NODE_FETCH;
|
NextState <= `GFSM_TRIGGER_NODE_FETCH;
|
end
|
end
|
//------------------------------------------
|
//------------------------------------------
|
`GFSM_CHECK_PARENTS_BROTHER:
|
`GFSM_CHECK_PARENTS_BROTHER:
|
begin
|
begin
|
|
|
|
|
oNodeAddress <= 0;
|
oNodeAddress <= 0;
|
oRequest_AABBIU <= 0;
|
oRequest_AABBIU <= 0;
|
oRequest_BIU <= 0;
|
oRequest_BIU <= 0;
|
oTrigger_TFU <= 0;
|
oTrigger_TFU <= 0;
|
oTrigger_TNF <= 0;
|
oTrigger_TNF <= 0;
|
IncTriangleCount <= 0; //*
|
IncTriangleCount <= 0; //*
|
oWBM_Addr_Selector <= `GFSM_SELECT_NULL;
|
oWBM_Addr_Selector <= `GFSM_SELECT_NULL;
|
ClearTriangleCount <= 0;
|
ClearTriangleCount <= 0;
|
oSync <= 0;
|
oSync <= 0;
|
oDone <= 0;
|
oDone <= 0;
|
oSetTFUAddressOffset <= 0;
|
oSetTFUAddressOffset <= 0;
|
oRequest_TCC <= 0;
|
oRequest_TCC <= 0;
|
|
|
oEnable_WBM <= 0;
|
oEnable_WBM <= 0;
|
oSetAddressWBM <= 0;
|
oSetAddressWBM <= 0;
|
//IncTextureWriteAddress <= 0;
|
//IncTextureWriteAddress <= 0;
|
IncTextureCount <= 0;
|
IncTextureCount <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
|
//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
|
|
|
if ( iNode_Parents_Brother_Address == 0)
|
if ( iNode_Parents_Brother_Address == 0)
|
NextState <= `GFSM_DONE;
|
NextState <= `GFSM_DONE;
|
else
|
else
|
NextState <= `GFSM_GET_PARENTS_BROTHER;
|
NextState <= `GFSM_GET_PARENTS_BROTHER;
|
end
|
end
|
//------------------------------------------
|
//------------------------------------------
|
`GFSM_GET_PARENTS_BROTHER:
|
`GFSM_GET_PARENTS_BROTHER:
|
begin
|
begin
|
oRequest_AABBIU <= 0;
|
oRequest_AABBIU <= 0;
|
oNodeAddress <= iNode_Parents_Brother_Address; //*
|
oNodeAddress <= iNode_Parents_Brother_Address; //*
|
oRequest_BIU <= 0;
|
oRequest_BIU <= 0;
|
oTrigger_TFU <= 0;
|
oTrigger_TFU <= 0;
|
oTrigger_TNF <= 0;
|
oTrigger_TNF <= 0;
|
IncTriangleCount <= 0; //*
|
IncTriangleCount <= 0; //*
|
oWBM_Addr_Selector <= `GFSM_SELECT_NULL;
|
oWBM_Addr_Selector <= `GFSM_SELECT_NULL;
|
ClearTriangleCount <= 0;
|
ClearTriangleCount <= 0;
|
oSync <= 0;
|
oSync <= 0;
|
oDone <= 0;
|
oDone <= 0;
|
oSetTFUAddressOffset <= 0;
|
oSetTFUAddressOffset <= 0;
|
oRequest_TCC <= 0;
|
oRequest_TCC <= 0;
|
|
|
oEnable_WBM <= 0;
|
oEnable_WBM <= 0;
|
oSetAddressWBM <= 0;
|
oSetAddressWBM <= 0;
|
//IncTextureWriteAddress <= 0;
|
//IncTextureWriteAddress <= 0;
|
IncTextureCount <= 0;
|
IncTextureCount <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
|
//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
|
|
|
|
|
NextState <= `GFSM_TRIGGER_NODE_FETCH;
|
NextState <= `GFSM_TRIGGER_NODE_FETCH;
|
end
|
end
|
//------------------------------------------
|
//------------------------------------------
|
`GFSM_TRIGGER_NODE_FETCH:
|
`GFSM_TRIGGER_NODE_FETCH:
|
begin
|
begin
|
|
|
oRequest_AABBIU <= 0;
|
oRequest_AABBIU <= 0;
|
oNodeAddress <= iNode_Brother_Address;
|
oNodeAddress <= iNode_Brother_Address;
|
oRequest_BIU <= 0;
|
oRequest_BIU <= 0;
|
oTrigger_TFU <= 1; //*
|
oTrigger_TFU <= 1; //*
|
oTrigger_TNF <= 0;
|
oTrigger_TNF <= 0;
|
oWBM_Addr_Selector <= `GFSM_SELECT_NULL;
|
oWBM_Addr_Selector <= `GFSM_SELECT_NULL;
|
IncTriangleCount <= 0; //*
|
IncTriangleCount <= 0; //*
|
ClearTriangleCount <= 0;
|
ClearTriangleCount <= 0;
|
oSync <= 0;
|
oSync <= 0;
|
oDone <= 0;
|
oDone <= 0;
|
oSetTFUAddressOffset <= 0;
|
oSetTFUAddressOffset <= 0;
|
oRequest_TCC <= 0;
|
oRequest_TCC <= 0;
|
|
|
oEnable_WBM <= 0;
|
oEnable_WBM <= 0;
|
oSetAddressWBM <= 0;
|
oSetAddressWBM <= 0;
|
//IncTextureWriteAddress <= 0;
|
//IncTextureWriteAddress <= 0;
|
IncTextureCount <= 0;
|
IncTextureCount <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
|
//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
|
|
|
|
|
NextState <= `GFSM_WAIT_FOR_NODE_FETCH;
|
NextState <= `GFSM_WAIT_FOR_NODE_FETCH;
|
end
|
end
|
//------------------------------------------
|
//------------------------------------------
|
/*
|
/*
|
Lets read the new node in our linked list.
|
Lets read the new node in our linked list.
|
Once we got it we need to check AABB intersect,
|
Once we got it we need to check AABB intersect,
|
fetch traingles, etc, etc.
|
fetch traingles, etc, etc.
|
*/
|
*/
|
`GFSM_WAIT_FOR_NODE_FETCH:
|
`GFSM_WAIT_FOR_NODE_FETCH:
|
begin
|
begin
|
|
|
oRequest_AABBIU <= 0;
|
oRequest_AABBIU <= 0;
|
oNodeAddress <= iNode_Brother_Address;
|
oNodeAddress <= iNode_Brother_Address;
|
oRequest_BIU <= 0;
|
oRequest_BIU <= 0;
|
oTrigger_TFU <= 1;
|
oTrigger_TFU <= 1;
|
oTrigger_TNF <= 0;
|
oTrigger_TNF <= 0;
|
oWBM_Addr_Selector <= `GFSM_SELECT_TFU;
|
oWBM_Addr_Selector <= `GFSM_SELECT_TFU;
|
IncTriangleCount <= 0; //*
|
IncTriangleCount <= 0; //*
|
ClearTriangleCount <= 0;
|
ClearTriangleCount <= 0;
|
oSync <= 0;
|
oSync <= 0;
|
oDone <= 0;
|
oDone <= 0;
|
oSetTFUAddressOffset <= 0;
|
oSetTFUAddressOffset <= 0;
|
oRequest_TCC <= 0;
|
oRequest_TCC <= 0;
|
|
|
oEnable_WBM <= 0;
|
oEnable_WBM <= 0;
|
oSetAddressWBM <= 0;
|
oSetAddressWBM <= 0;
|
//IncTextureWriteAddress <= 0;
|
//IncTextureWriteAddress <= 0;
|
IncTextureCount <= 0;
|
IncTextureCount <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
|
//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
|
|
|
if (iNodeReadDone)
|
if (iNodeReadDone)
|
NextState <= `GFSM_TRIGGER_AABBIU;
|
NextState <= `GFSM_TRIGGER_AABBIU;
|
else
|
else
|
NextState <= `GFSM_WAIT_FOR_NODE_FETCH;
|
NextState <= `GFSM_WAIT_FOR_NODE_FETCH;
|
end
|
end
|
//------------------------------------------
|
//------------------------------------------
|
`GFSM_DONE:
|
`GFSM_DONE:
|
begin
|
begin
|
|
|
`ifdef DEBUG2
|
`ifdef DEBUG2
|
$display(" **** GFSM_DONE ***");
|
$display(" **** GFSM_DONE ***");
|
`endif
|
`endif
|
oNodeAddress <= 0;
|
oNodeAddress <= 0;
|
oRequest_AABBIU <= 0;
|
oRequest_AABBIU <= 0;
|
oRequest_BIU <= 0;
|
oRequest_BIU <= 0;
|
oTrigger_TFU <= 0;
|
oTrigger_TFU <= 0;
|
oTrigger_TNF <= 0;
|
oTrigger_TNF <= 0;
|
IncTriangleCount <= 0; //*
|
IncTriangleCount <= 0; //*
|
oWBM_Addr_Selector <= `GFSM_SELECT_NULL;
|
oWBM_Addr_Selector <= `GFSM_SELECT_NULL;
|
ClearTriangleCount <= 0;
|
ClearTriangleCount <= 0;
|
oSync <= 1; //*
|
oSync <= 1; //*
|
oDone <= 1; //*
|
oDone <= 1; //*
|
oSetTFUAddressOffset <= 0;
|
oSetTFUAddressOffset <= 0;
|
oRequest_TCC <= 0;
|
oRequest_TCC <= 0;
|
|
|
oEnable_WBM <= 0;
|
oEnable_WBM <= 0;
|
oSetAddressWBM <= 0;
|
oSetAddressWBM <= 0;
|
//IncTextureWriteAddress <= 0;
|
//IncTextureWriteAddress <= 0;
|
IncTextureCount <= 0;
|
IncTextureCount <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
|
//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
|
|
|
|
|
if (iEnable == 0 )
|
if (iEnable == 0 )
|
NextState <= `GFSM_INITIAL_STATE;
|
NextState <= `GFSM_INITIAL_STATE;
|
else
|
else
|
NextState <= `GFSM_DONE;
|
NextState <= `GFSM_DONE;
|
end
|
end
|
//------------------------------------------
|
//------------------------------------------
|
default:
|
default:
|
begin
|
begin
|
|
|
|
|
oRequest_AABBIU <= 0;
|
oRequest_AABBIU <= 0;
|
oNodeAddress <= 0;
|
oNodeAddress <= 0;
|
oRequest_BIU <= 0;
|
oRequest_BIU <= 0;
|
oTrigger_TFU <= 0;
|
oTrigger_TFU <= 0;
|
oTrigger_TNF <= 0;
|
oTrigger_TNF <= 0;
|
oWBM_Addr_Selector <= `GFSM_SELECT_NULL;
|
oWBM_Addr_Selector <= `GFSM_SELECT_NULL;
|
IncTriangleCount <= 0; //*
|
IncTriangleCount <= 0; //*
|
oWBM_Addr_Selector <= 0;
|
oWBM_Addr_Selector <= 0;
|
ClearTriangleCount <= 0;
|
ClearTriangleCount <= 0;
|
oSync <= 0;
|
oSync <= 0;
|
oDone <= 0;
|
oDone <= 0;
|
oSetTFUAddressOffset <= 0;
|
oSetTFUAddressOffset <= 0;
|
oRequest_TCC <= 0;
|
oRequest_TCC <= 0;
|
|
|
oEnable_WBM <= 0;
|
oEnable_WBM <= 0;
|
oSetAddressWBM <= 0;
|
oSetAddressWBM <= 0;
|
//IncTextureWriteAddress <= 0;
|
//IncTextureWriteAddress <= 0;
|
IncTextureCount <= 0;
|
IncTextureCount <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
IncTextureCoordRegrAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
oSetIOWriteBackAddr <= 0;
|
//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
|
//oRAMTextureStoreLocation <= `DATA_ADDRESS_WIDTH'd0;
|
|
|
|
|
NextState <= `GFSM_AFTER_RESET;
|
NextState <= `GFSM_AFTER_RESET;
|
end
|
end
|
endcase
|
endcase
|
end
|
end
|
//------------------------------------------------
|
//------------------------------------------------
|
endmodule
|
endmodule
|
|
|
