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#ifndef __NV40_SHADER_H__
#define __NV40_SHADER_H__
/* Vertex programs instruction set
*
* The NV40 instruction set is very similar to NV30. Most fields are in
* a slightly different position in the instruction however.
*
* Merged instructions
* In some cases it is possible to put two instructions into one opcode
* slot. The rules for when this is OK is not entirely clear to me yet.
*
* There are separate writemasks and dest temp register fields for each
* grouping of instructions. There is however only one field with the
* ID of a result register. Writing to temp/result regs is selected by
* setting VEC_RESULT/SCA_RESULT.
*
* Temporary registers
* The source/dest temp register fields have been extended by 1 bit, to
* give a total of 32 temporary registers.
*
* Relative Addressing
* NV40 can use an address register to index into vertex attribute regs.
* This is done by putting the offset value into INPUT_SRC and setting
* the INDEX_INPUT flag.
*
* Conditional execution (see NV_vertex_program{2,3} for details)
* There is a second condition code register on NV40, it's use is enabled
* by setting the COND_REG_SELECT_1 flag.
*
* Texture lookup
* TODO
*/
/* ---- OPCODE BITS 127:96 / data DWORD 0 --- */
#define NV40_VP_INST_VEC_RESULT (1 << 30)
/* uncertain.. */
#define NV40_VP_INST_COND_UPDATE_ENABLE ((1 << 14)|1<<29)
/* use address reg as index into attribs */
#define NV40_VP_INST_INDEX_INPUT (1 << 27)
#define NV40_VP_INST_COND_REG_SELECT_1 (1 << 25)
#define NV40_VP_INST_ADDR_REG_SELECT_1 (1 << 24)
#define NV40_VP_INST_SRC2_ABS (1 << 23)
#define NV40_VP_INST_SRC1_ABS (1 << 22)
#define NV40_VP_INST_SRC0_ABS (1 << 21)
#define NV40_VP_INST_VEC_DEST_TEMP_SHIFT 15
#define NV40_VP_INST_VEC_DEST_TEMP_MASK (0x1F << 15)
#define NV40_VP_INST_COND_TEST_ENABLE (1 << 13)
#define NV40_VP_INST_COND_SHIFT 10
#define NV40_VP_INST_COND_MASK (0x7 << 10)
# define NV40_VP_INST_COND_FL 0
# define NV40_VP_INST_COND_LT 1
# define NV40_VP_INST_COND_EQ 2
# define NV40_VP_INST_COND_LE 3
# define NV40_VP_INST_COND_GT 4
# define NV40_VP_INST_COND_NE 5
# define NV40_VP_INST_COND_GE 6
# define NV40_VP_INST_COND_TR 7
#define NV40_VP_INST_COND_SWZ_X_SHIFT 8
#define NV40_VP_INST_COND_SWZ_X_MASK (3 << 8)
#define NV40_VP_INST_COND_SWZ_Y_SHIFT 6
#define NV40_VP_INST_COND_SWZ_Y_MASK (3 << 6)
#define NV40_VP_INST_COND_SWZ_Z_SHIFT 4
#define NV40_VP_INST_COND_SWZ_Z_MASK (3 << 4)
#define NV40_VP_INST_COND_SWZ_W_SHIFT 2
#define NV40_VP_INST_COND_SWZ_W_MASK (3 << 2)
#define NV40_VP_INST_COND_SWZ_ALL_SHIFT 2
#define NV40_VP_INST_COND_SWZ_ALL_MASK (0xFF << 2)
#define NV40_VP_INST_ADDR_SWZ_SHIFT 0
#define NV40_VP_INST_ADDR_SWZ_MASK (0x03 << 0)
#define NV40_VP_INST0_KNOWN ( \
NV40_VP_INST_INDEX_INPUT | \
NV40_VP_INST_COND_REG_SELECT_1 | \
NV40_VP_INST_ADDR_REG_SELECT_1 | \
NV40_VP_INST_SRC2_ABS | \
NV40_VP_INST_SRC1_ABS | \
NV40_VP_INST_SRC0_ABS | \
NV40_VP_INST_VEC_DEST_TEMP_MASK | \
NV40_VP_INST_COND_TEST_ENABLE | \
NV40_VP_INST_COND_MASK | \
NV40_VP_INST_COND_SWZ_ALL_MASK | \
NV40_VP_INST_ADDR_SWZ_MASK)
/* ---- OPCODE BITS 95:64 / data DWORD 1 --- */
#define NV40_VP_INST_VEC_OPCODE_SHIFT 22
#define NV40_VP_INST_VEC_OPCODE_MASK (0x1F << 22)
# define NV40_VP_INST_OP_NOP 0x00
# define NV40_VP_INST_OP_MOV 0x01
# define NV40_VP_INST_OP_MUL 0x02
# define NV40_VP_INST_OP_ADD 0x03
# define NV40_VP_INST_OP_MAD 0x04
# define NV40_VP_INST_OP_DP3 0x05
# define NV40_VP_INST_OP_DP4 0x07
# define NV40_VP_INST_OP_DPH 0x06
# define NV40_VP_INST_OP_DST 0x08
# define NV40_VP_INST_OP_MIN 0x09
# define NV40_VP_INST_OP_MAX 0x0A
# define NV40_VP_INST_OP_SLT 0x0B
# define NV40_VP_INST_OP_SGE 0x0C
# define NV40_VP_INST_OP_ARL 0x0D
# define NV40_VP_INST_OP_FRC 0x0E
# define NV40_VP_INST_OP_FLR 0x0F
# define NV40_VP_INST_OP_SEQ 0x10
# define NV40_VP_INST_OP_SFL 0x11
# define NV40_VP_INST_OP_SGT 0x12
# define NV40_VP_INST_OP_SLE 0x13
# define NV40_VP_INST_OP_SNE 0x14
# define NV40_VP_INST_OP_STR 0x15
# define NV40_VP_INST_OP_SSG 0x16
# define NV40_VP_INST_OP_ARR 0x17
# define NV40_VP_INST_OP_ARA 0x18
# define NV40_VP_INST_OP_TXWHAT 0x19
#define NV40_VP_INST_SCA_OPCODE_SHIFT 27
#define NV40_VP_INST_SCA_OPCODE_MASK (0x1F << 27)
# define NV40_VP_INST_OP_RCP 0x02
# define NV40_VP_INST_OP_RCC 0x03
# define NV40_VP_INST_OP_RSQ 0x04
# define NV40_VP_INST_OP_EXP 0x05
# define NV40_VP_INST_OP_LOG 0x06
# define NV40_VP_INST_OP_LIT 0x07
# define NV40_VP_INST_OP_BRA 0x09
# define NV40_VP_INST_OP_CAL 0x0B
# define NV40_VP_INST_OP_RET 0x0C
# define NV40_VP_INST_OP_LG2 0x0D
# define NV40_VP_INST_OP_EX2 0x0E
# define NV40_VP_INST_OP_SIN 0x0F
# define NV40_VP_INST_OP_COS 0x10
# define NV40_VP_INST_OP_PUSHA 0x13
# define NV40_VP_INST_OP_POPA 0x14
#define NV40_VP_INST_CONST_SRC_SHIFT 12
#define NV40_VP_INST_CONST_SRC_MASK (0xFF << 12)
#define NV40_VP_INST_INPUT_SRC_SHIFT 8
#define NV40_VP_INST_INPUT_SRC_MASK (0x0F << 8)
# define NV40_VP_INST_IN_POS 0
# define NV40_VP_INST_IN_WEIGHT 1
# define NV40_VP_INST_IN_NORMAL 2
# define NV40_VP_INST_IN_COL0 3
# define NV40_VP_INST_IN_COL1 4
# define NV40_VP_INST_IN_FOGC 5
# define NV40_VP_INST_IN_TC0 8
# define NV40_VP_INST_IN_TC(n) (8+n)
#define NV40_VP_INST_SRC0H_SHIFT 0
#define NV40_VP_INST_SRC0H_MASK (0xFF << 0)
#define NV40_VP_INST1_KNOWN ( \
NV40_VP_INST_VEC_OPCODE_MASK | \
NV40_VP_INST_SCA_OPCODE_MASK | \
NV40_VP_INST_CONST_SRC_MASK | \
NV40_VP_INST_INPUT_SRC_MASK | \
NV40_VP_INST_SRC0H_MASK \
)
/* ---- OPCODE BITS 63:32 / data DWORD 2 --- */
#define NV40_VP_INST_SRC0L_SHIFT 23
#define NV40_VP_INST_SRC0L_MASK (0x1FF << 23)
#define NV40_VP_INST_SRC1_SHIFT 6
#define NV40_VP_INST_SRC1_MASK (0x1FFFF << 6)
#define NV40_VP_INST_SRC2H_SHIFT 0
#define NV40_VP_INST_SRC2H_MASK (0x3F << 0)
#define NV40_VP_INST_IADDRH_SHIFT 0
#define NV40_VP_INST_IADDRH_MASK (0x1F << 0)
/* ---- OPCODE BITS 31:0 / data DWORD 3 --- */
#define NV40_VP_INST_IADDRL_SHIFT 29
#define NV40_VP_INST_IADDRL_MASK (7 << 29)
#define NV40_VP_INST_SRC2L_SHIFT 21
#define NV40_VP_INST_SRC2L_MASK (0x7FF << 21)
#define NV40_VP_INST_SCA_WRITEMASK_SHIFT 17
#define NV40_VP_INST_SCA_WRITEMASK_MASK (0xF << 17)
# define NV40_VP_INST_SCA_WRITEMASK_X (1 << 20)
# define NV40_VP_INST_SCA_WRITEMASK_Y (1 << 19)
# define NV40_VP_INST_SCA_WRITEMASK_Z (1 << 18)
# define NV40_VP_INST_SCA_WRITEMASK_W (1 << 17)
#define NV40_VP_INST_VEC_WRITEMASK_SHIFT 13
#define NV40_VP_INST_VEC_WRITEMASK_MASK (0xF << 13)
# define NV40_VP_INST_VEC_WRITEMASK_X (1 << 16)
# define NV40_VP_INST_VEC_WRITEMASK_Y (1 << 15)
# define NV40_VP_INST_VEC_WRITEMASK_Z (1 << 14)
# define NV40_VP_INST_VEC_WRITEMASK_W (1 << 13)
#define NV40_VP_INST_SCA_RESULT (1 << 12)
#define NV40_VP_INST_SCA_DEST_TEMP_SHIFT 7
#define NV40_VP_INST_SCA_DEST_TEMP_MASK (0x1F << 7)
#define NV40_VP_INST_DEST_SHIFT 2
#define NV40_VP_INST_DEST_MASK (31 << 2)
# define NV40_VP_INST_DEST_POS 0
# define NV40_VP_INST_DEST_COL0 1
# define NV40_VP_INST_DEST_COL1 2
# define NV40_VP_INST_DEST_BFC0 3
# define NV40_VP_INST_DEST_BFC1 4
# define NV40_VP_INST_DEST_FOGC 5
# define NV40_VP_INST_DEST_PSZ 6
# define NV40_VP_INST_DEST_TC0 7
# define NV40_VP_INST_DEST_TC(n) (7+n)
# define NV40_VP_INST_DEST_TEMP 0x1F
#define NV40_VP_INST_INDEX_CONST (1 << 1)
#define NV40_VP_INST_LAST (1 << 0)
#define NV40_VP_INST3_KNOWN ( \
NV40_VP_INST_SRC2L_MASK |\
NV40_VP_INST_SCA_WRITEMASK_MASK |\
NV40_VP_INST_VEC_WRITEMASK_MASK |\
NV40_VP_INST_SCA_DEST_TEMP_MASK |\
NV40_VP_INST_DEST_MASK |\
NV40_VP_INST_INDEX_CONST)
/* Useful to split the source selection regs into their pieces */
#define NV40_VP_SRC0_HIGH_SHIFT 9
#define NV40_VP_SRC0_HIGH_MASK 0x0001FE00
#define NV40_VP_SRC0_LOW_MASK 0x000001FF
#define NV40_VP_SRC2_HIGH_SHIFT 11
#define NV40_VP_SRC2_HIGH_MASK 0x0001F800
#define NV40_VP_SRC2_LOW_MASK 0x000007FF
/* Source selection - these are the bits you fill NV40_VP_INST_SRCn with */
#define NV40_VP_SRC_NEGATE (1 << 16)
#define NV40_VP_SRC_SWZ_X_SHIFT 14
#define NV40_VP_SRC_SWZ_X_MASK (3 << 14)
#define NV40_VP_SRC_SWZ_Y_SHIFT 12
#define NV40_VP_SRC_SWZ_Y_MASK (3 << 12)
#define NV40_VP_SRC_SWZ_Z_SHIFT 10
#define NV40_VP_SRC_SWZ_Z_MASK (3 << 10)
#define NV40_VP_SRC_SWZ_W_SHIFT 8
#define NV40_VP_SRC_SWZ_W_MASK (3 << 8)
#define NV40_VP_SRC_SWZ_ALL_SHIFT 8
#define NV40_VP_SRC_SWZ_ALL_MASK (0xFF << 8)
#define NV40_VP_SRC_TEMP_SRC_SHIFT 2
#define NV40_VP_SRC_TEMP_SRC_MASK (0x1F << 2)
#define NV40_VP_SRC_REG_TYPE_SHIFT 0
#define NV40_VP_SRC_REG_TYPE_MASK (3 << 0)
# define NV40_VP_SRC_REG_TYPE_UNK0 0
# define NV40_VP_SRC_REG_TYPE_TEMP 1
# define NV40_VP_SRC_REG_TYPE_INPUT 2
# define NV40_VP_SRC_REG_TYPE_CONST 3
/*
* Each fragment program opcode appears to be comprised of 4 32-bit values.
*
* 0 - Opcode, output reg/mask, ATTRIB source
* 1 - Source 0
* 2 - Source 1
* 3 - Source 2
*
* There appears to be no special difference between result regs and temp regs.
* result.color == R0.xyzw
* result.depth == R1.z
* When the fragprog contains instructions to write depth,
* NV30_TCL_PRIMITIVE_3D_UNK1D78=0 otherwise it is set to 1.
*
* Constants are inserted directly after the instruction that uses them.
*
* It appears that it's not possible to use two input registers in one
* instruction as the input sourcing is done in the instruction dword
* and not the source selection dwords. As such instructions such as:
*
* ADD result.color, fragment.color, fragment.texcoord[0];
*
* must be split into two MOV's and then an ADD (nvidia does this) but
* I'm not sure why it's not just one MOV and then source the second input
* in the ADD instruction..
*
* Negation of the full source is done with NV30_FP_REG_NEGATE, arbitrary
* negation requires multiplication with a const.
*
* Arbitrary swizzling is supported with the exception of SWIZZLE_ZERO and
* SWIZZLE_ONE.
*
* The temp/result regs appear to be initialised to (0.0, 0.0, 0.0, 0.0) as
* SWIZZLE_ZERO is implemented simply by not writing to the relevant components
* of the destination.
*
* Looping
* Loops appear to be fairly expensive on NV40 at least, the proprietary
* driver goes to a lot of effort to avoid using the native looping
* instructions. If the total number of *executed* instructions between
* REP/ENDREP or LOOP/ENDLOOP is <=500, the driver will unroll the loop.
* The maximum loop count is 255.
*
* Conditional execution
* TODO
*
* Non-native instructions:
* LIT
* LRP - MAD+MAD
* SUB - ADD, negate second source
* RSQ - LG2 + EX2
* POW - LG2 + MUL + EX2
* SCS - COS + SIN
* XPD
* DP2 - MUL + ADD
* NRM
*/
//== Opcode / Destination selection ==
#define NV40_FP_OP_PROGRAM_END (1 << 0)
#define NV40_FP_OP_OUT_REG_SHIFT 1
#define NV40_FP_OP_OUT_REG_MASK (31 << 1)
/* Needs to be set when writing outputs to get expected result.. */
#define NV40_FP_OP_UNK0_7 (1 << 7)
#define NV40_FP_OP_COND_WRITE_ENABLE (1 << 8)
#define NV40_FP_OP_OUTMASK_SHIFT 9
#define NV40_FP_OP_OUTMASK_MASK (0xF << 9)
# define NV40_FP_OP_OUT_X (1 << 9)
# define NV40_FP_OP_OUT_Y (1 <<10)
# define NV40_FP_OP_OUT_Z (1 <<11)
# define NV40_FP_OP_OUT_W (1 <<12)
/* Uncertain about these, especially the input_src values.. it's possible that
* they can be dynamically changed.
*/
#define NV40_FP_OP_INPUT_SRC_SHIFT 13
#define NV40_FP_OP_INPUT_SRC_MASK (15 << 13)
# define NV40_FP_OP_INPUT_SRC_POSITION 0x0
# define NV40_FP_OP_INPUT_SRC_COL0 0x1
# define NV40_FP_OP_INPUT_SRC_COL1 0x2
# define NV40_FP_OP_INPUT_SRC_FOGC 0x3
# define NV40_FP_OP_INPUT_SRC_TC0 0x4
# define NV40_FP_OP_INPUT_SRC_TC(n) (0x4 + n)
# define NV40_FP_OP_INPUT_SRC_FACING 0xE
#define NV40_FP_OP_TEX_UNIT_SHIFT 17
#define NV40_FP_OP_TEX_UNIT_MASK (0xF << 17)
#define NV40_FP_OP_PRECISION_SHIFT 22
#define NV40_FP_OP_PRECISION_MASK (3 << 22)
# define NV40_FP_PRECISION_FP32 0
# define NV40_FP_PRECISION_FP16 1
# define NV40_FP_PRECISION_FX12 2
#define NV40_FP_OP_OPCODE_SHIFT 24
#define NV40_FP_OP_OPCODE_MASK (0x3F << 24)
# define NV40_FP_OP_OPCODE_NOP 0x00
# define NV40_FP_OP_OPCODE_MOV 0x01
# define NV40_FP_OP_OPCODE_MUL 0x02
# define NV40_FP_OP_OPCODE_ADD 0x03
# define NV40_FP_OP_OPCODE_MAD 0x04
# define NV40_FP_OP_OPCODE_DP3 0x05
# define NV40_FP_OP_OPCODE_DP4 0x06
# define NV40_FP_OP_OPCODE_DST 0x07
# define NV40_FP_OP_OPCODE_MIN 0x08
# define NV40_FP_OP_OPCODE_MAX 0x09
# define NV40_FP_OP_OPCODE_SLT 0x0A
# define NV40_FP_OP_OPCODE_SGE 0x0B
# define NV40_FP_OP_OPCODE_SLE 0x0C
# define NV40_FP_OP_OPCODE_SGT 0x0D
# define NV40_FP_OP_OPCODE_SNE 0x0E
# define NV40_FP_OP_OPCODE_SEQ 0x0F
# define NV40_FP_OP_OPCODE_FRC 0x10
# define NV40_FP_OP_OPCODE_FLR 0x11
# define NV40_FP_OP_OPCODE_KIL 0x12
# define NV40_FP_OP_OPCODE_PK4B 0x13
# define NV40_FP_OP_OPCODE_UP4B 0x14
/* DDX/DDY can only write to XY */
# define NV40_FP_OP_OPCODE_DDX 0x15
# define NV40_FP_OP_OPCODE_DDY 0x16
# define NV40_FP_OP_OPCODE_TEX 0x17
# define NV40_FP_OP_OPCODE_TXP 0x18
# define NV40_FP_OP_OPCODE_TXD 0x19
# define NV40_FP_OP_OPCODE_RCP 0x1A
# define NV40_FP_OP_OPCODE_EX2 0x1C
# define NV40_FP_OP_OPCODE_LG2 0x1D
# define NV40_FP_OP_OPCODE_COS 0x22
# define NV40_FP_OP_OPCODE_SIN 0x23
# define NV40_FP_OP_OPCODE_PK2H 0x24
# define NV40_FP_OP_OPCODE_UP2H 0x25
# define NV40_FP_OP_OPCODE_PK4UB 0x27
# define NV40_FP_OP_OPCODE_UP4UB 0x28
# define NV40_FP_OP_OPCODE_PK2US 0x29
# define NV40_FP_OP_OPCODE_UP2US 0x2A
# define NV40_FP_OP_OPCODE_DP2A 0x2E
# define NV40_FP_OP_OPCODE_TXL 0x2F
# define NV40_FP_OP_OPCODE_TXB 0x31
# define NV40_FP_OP_OPCODE_DIV 0x3A
/* The use of these instructions appears to be indicated by bit 31 of DWORD 2.*/
# define NV40_FP_OP_BRA_OPCODE_BRK 0x0
# define NV40_FP_OP_BRA_OPCODE_CAL 0x1
# define NV40_FP_OP_BRA_OPCODE_IF 0x2
# define NV40_FP_OP_BRA_OPCODE_LOOP 0x3
# define NV40_FP_OP_BRA_OPCODE_REP 0x4
# define NV40_FP_OP_BRA_OPCODE_RET 0x5
#define NV40_FP_OP_OUT_SAT (1 << 31)
/* high order bits of SRC0 */
#define NV40_FP_OP_OUT_ABS (1 << 29)
#define NV40_FP_OP_COND_SWZ_W_SHIFT 27
#define NV40_FP_OP_COND_SWZ_W_MASK (3 << 27)
#define NV40_FP_OP_COND_SWZ_Z_SHIFT 25
#define NV40_FP_OP_COND_SWZ_Z_MASK (3 << 25)
#define NV40_FP_OP_COND_SWZ_Y_SHIFT 23
#define NV40_FP_OP_COND_SWZ_Y_MASK (3 << 23)
#define NV40_FP_OP_COND_SWZ_X_SHIFT 21
#define NV40_FP_OP_COND_SWZ_X_MASK (3 << 21)
#define NV40_FP_OP_COND_SWZ_ALL_SHIFT 21
#define NV40_FP_OP_COND_SWZ_ALL_MASK (0xFF << 21)
#define NV40_FP_OP_COND_SHIFT 18
#define NV40_FP_OP_COND_MASK (0x07 << 18)
# define NV40_FP_OP_COND_FL 0
# define NV40_FP_OP_COND_LT 1
# define NV40_FP_OP_COND_EQ 2
# define NV40_FP_OP_COND_LE 3
# define NV40_FP_OP_COND_GT 4
# define NV40_FP_OP_COND_NE 5
# define NV40_FP_OP_COND_GE 6
# define NV40_FP_OP_COND_TR 7
/* high order bits of SRC1 */
#define NV40_FP_OP_OPCODE_IS_BRANCH (1<<31)
#define NV40_FP_OP_SRC_SCALE_SHIFT 28
#define NV40_FP_OP_SRC_SCALE_MASK (3 << 28)
/* SRC1 LOOP */
#define NV40_FP_OP_LOOP_INCR_SHIFT 19
#define NV40_FP_OP_LOOP_INCR_MASK (0xFF << 19)
#define NV40_FP_OP_LOOP_INDEX_SHIFT 10
#define NV40_FP_OP_LOOP_INDEX_MASK (0xFF << 10)
#define NV40_FP_OP_LOOP_COUNT_SHIFT 2
#define NV40_FP_OP_LOOP_COUNT_MASK (0xFF << 2)
/* SRC1 IF */
#define NV40_FP_OP_ELSE_ID_SHIFT 2
#define NV40_FP_OP_ELSE_ID_MASK (0xFF << 2)
/* SRC1 CAL */
#define NV40_FP_OP_IADDR_SHIFT 2
#define NV40_FP_OP_IADDR_MASK (0xFF << 2)
/* SRC1 REP
* I have no idea why there are 3 count values here.. but they
* have always been filled with the same value in my tests so
* far..
*/
#define NV40_FP_OP_REP_COUNT1_SHIFT 2
#define NV40_FP_OP_REP_COUNT1_MASK (0xFF << 2)
#define NV40_FP_OP_REP_COUNT2_SHIFT 10
#define NV40_FP_OP_REP_COUNT2_MASK (0xFF << 10)
#define NV40_FP_OP_REP_COUNT3_SHIFT 19
#define NV40_FP_OP_REP_COUNT3_MASK (0xFF << 19)
/* SRC2 REP/IF */
#define NV40_FP_OP_END_ID_SHIFT 2
#define NV40_FP_OP_END_ID_MASK (0xFF << 2)
// SRC2 high-order
#define NV40_FP_OP_INDEX_INPUT (1 << 30)
#define NV40_FP_OP_ADDR_INDEX_SHIFT 19
#define NV40_FP_OP_ADDR_INDEX_MASK (0xF << 19)
//== Register selection ==
#define NV40_FP_REG_TYPE_SHIFT 0
#define NV40_FP_REG_TYPE_MASK (3 << 0)
# define NV40_FP_REG_TYPE_TEMP 0
# define NV40_FP_REG_TYPE_INPUT 1
# define NV40_FP_REG_TYPE_CONST 2
#define NV40_FP_REG_SRC_SHIFT 2
#define NV40_FP_REG_SRC_MASK (31 << 2)
#define NV40_FP_REG_UNK_0 (1 << 8)
#define NV40_FP_REG_SWZ_ALL_SHIFT 9
#define NV40_FP_REG_SWZ_ALL_MASK (255 << 9)
#define NV40_FP_REG_SWZ_X_SHIFT 9
#define NV40_FP_REG_SWZ_X_MASK (3 << 9)
#define NV40_FP_REG_SWZ_Y_SHIFT 11
#define NV40_FP_REG_SWZ_Y_MASK (3 << 11)
#define NV40_FP_REG_SWZ_Z_SHIFT 13
#define NV40_FP_REG_SWZ_Z_MASK (3 << 13)
#define NV40_FP_REG_SWZ_W_SHIFT 15
#define NV40_FP_REG_SWZ_W_MASK (3 << 15)
# define NV40_FP_SWIZZLE_X 0
# define NV40_FP_SWIZZLE_Y 1
# define NV40_FP_SWIZZLE_Z 2
# define NV40_FP_SWIZZLE_W 3
#define NV40_FP_REG_NEGATE (1 << 17)
#endif
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