1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
|
#ifndef __NV30_SHADER_H__
#define __NV30_SHADER_H__
/* Vertex programs instruction set
*
* 128bit opcodes, split into 4 32-bit ones for ease of use.
*
* Non-native instructions
* ABS - MOV + NV40_VP_INST0_DEST_ABS
* POW - EX2 + MUL + LG2
* SUB - ADD, second source negated
* SWZ - MOV
* XPD -
*
* Register access
* - Only one INPUT can be accessed per-instruction (move extras into TEMPs)
* - Only one CONST can be accessed per-instruction (move extras into TEMPs)
*
* Relative Addressing
* According to the value returned for
* MAX_PROGRAM_NATIVE_ADDRESS_REGISTERS_ARB
*
* there are only two address registers available. The destination in the
* ARL instruction is set to TEMP <n> (The temp isn't actually written).
*
* When using vanilla ARB_v_p, the proprietary driver will squish both the
* available ADDRESS regs into the first hardware reg in the X and Y
* components.
*
* To use an address reg as an index into consts, the CONST_SRC is set to
* (const_base + offset) and INDEX_CONST is set.
*
* To access the second address reg use ADDR_REG_SELECT_1. A particular
* component of the address regs is selected with ADDR_SWZ.
*
* Only one address register can be accessed per instruction.
*
* Conditional execution (see NV_vertex_program{2,3} for details) Conditional
* execution of an instruction is enabled by setting COND_TEST_ENABLE, and
* selecting the condition which will allow the test to pass with
* COND_{FL,LT,...}. It is possible to swizzle the values in the condition
* register, which allows for testing against an individual component.
*
* Branching:
*
* The BRA/CAL instructions seem to follow a slightly different opcode
* layout. The destination instruction ID (IADDR) overlaps a source field.
* Instruction ID's seem to be numbered based on the UPLOAD_FROM_ID FIFO
* command, and is incremented automatically on each UPLOAD_INST FIFO
* command.
*
* Conditional branching is achieved by using the condition tests described
* above. There doesn't appear to be dedicated looping instructions, but
* this can be done using a temp reg + conditional branching.
*
* Subroutines may be uploaded before the main program itself, but the first
* executed instruction is determined by the PROGRAM_START_ID FIFO command.
*
*/
/* DWORD 0 */
#define NV30_VP_INST_ADDR_REG_SELECT_1 (1 << 24)
#define NV30_VP_INST_SRC2_ABS (1 << 23) /* guess */
#define NV30_VP_INST_SRC1_ABS (1 << 22) /* guess */
#define NV30_VP_INST_SRC0_ABS (1 << 21) /* guess */
#define NV30_VP_INST_VEC_RESULT (1 << 20)
#define NV30_VP_INST_DEST_TEMP_ID_SHIFT 16
#define NV30_VP_INST_DEST_TEMP_ID_MASK (0x0F << 16)
#define NV30_VP_INST_COND_UPDATE_ENABLE (1<<15)
#define NV30_VP_INST_VEC_DEST_TEMP_MASK (0x1F << 16)
#define NV30_VP_INST_COND_TEST_ENABLE (1<<14)
#define NV30_VP_INST_COND_SHIFT 11
#define NV30_VP_INST_COND_MASK (0x07 << 11)
#define NV30_VP_INST_COND_SWZ_X_SHIFT 9
#define NV30_VP_INST_COND_SWZ_X_MASK (0x03 << 9)
#define NV30_VP_INST_COND_SWZ_Y_SHIFT 7
#define NV30_VP_INST_COND_SWZ_Y_MASK (0x03 << 7)
#define NV30_VP_INST_COND_SWZ_Z_SHIFT 5
#define NV30_VP_INST_COND_SWZ_Z_MASK (0x03 << 5)
#define NV30_VP_INST_COND_SWZ_W_SHIFT 3
#define NV30_VP_INST_COND_SWZ_W_MASK (0x03 << 3)
#define NV30_VP_INST_COND_SWZ_ALL_SHIFT 3
#define NV30_VP_INST_COND_SWZ_ALL_MASK (0xFF << 3)
#define NV30_VP_INST_ADDR_SWZ_SHIFT 1
#define NV30_VP_INST_ADDR_SWZ_MASK (0x03 << 1)
#define NV30_VP_INST_SCA_OPCODEH_SHIFT 0
#define NV30_VP_INST_SCA_OPCODEH_MASK (0x01 << 0)
/* DWORD 1 */
#define NV30_VP_INST_SCA_OPCODEL_SHIFT 28
#define NV30_VP_INST_SCA_OPCODEL_MASK (0x0F << 28)
#define NV30_VP_INST_VEC_OPCODE_SHIFT 23
#define NV30_VP_INST_VEC_OPCODE_MASK (0x1F << 23)
#define NV30_VP_INST_CONST_SRC_SHIFT 14
#define NV30_VP_INST_CONST_SRC_MASK (0xFF << 14)
#define NV30_VP_INST_INPUT_SRC_SHIFT 9 /*NV20*/
#define NV30_VP_INST_INPUT_SRC_MASK (0x0F << 9) /*NV20*/
#define NV30_VP_INST_SRC0H_SHIFT 0 /*NV20*/
#define NV30_VP_INST_SRC0H_MASK (0x1FF << 0) /*NV20*/
/* Please note: the IADDR fields overlap other fields because they are used
* only for branch instructions. See Branching: label above
*
* DWORD 2
*/
#define NV30_VP_INST_SRC0L_SHIFT 26 /*NV20*/
#define NV30_VP_INST_SRC0L_MASK (0x3F <<26) /* NV30_VP_SRC0_LOW_MASK << 26 */
#define NV30_VP_INST_SRC1_SHIFT 11 /*NV20*/
#define NV30_VP_INST_SRC1_MASK (0x7FFF<<11) /*NV20*/
#define NV30_VP_INST_SRC2H_SHIFT 0 /*NV20*/
#define NV30_VP_INST_SRC2H_MASK (0x7FF << 0) /* NV30_VP_SRC2_HIGH_MASK >> 4*/
#define NV30_VP_INST_IADDR_SHIFT 2
#define NV30_VP_INST_IADDR_MASK (0x1FF << 2) /* NV30_VP_SRC2_LOW_MASK << 28 */
/* DWORD 3 */
#define NV30_VP_INST_SRC2L_SHIFT 28 /*NV20*/
#define NV30_VP_INST_SRC2L_MASK (0x0F <<28) /*NV20*/
#define NV30_VP_INST_STEMP_WRITEMASK_SHIFT 24
#define NV30_VP_INST_STEMP_WRITEMASK_MASK (0x0F << 24)
#define NV30_VP_INST_VTEMP_WRITEMASK_SHIFT 20
#define NV30_VP_INST_VTEMP_WRITEMASK_MASK (0x0F << 20)
#define NV30_VP_INST_SDEST_WRITEMASK_SHIFT 16
#define NV30_VP_INST_SDEST_WRITEMASK_MASK (0x0F << 16)
#define NV30_VP_INST_VDEST_WRITEMASK_SHIFT 12 /*NV20*/
#define NV30_VP_INST_VDEST_WRITEMASK_MASK (0x0F << 12) /*NV20*/
#define NV30_VP_INST_DEST_SHIFT 2
#define NV30_VP_INST_DEST_MASK (0x1F << 2)
# define NV30_VP_INST_DEST_POS 0
# define NV30_VP_INST_DEST_BFC0 1
# define NV30_VP_INST_DEST_BFC1 2
# define NV30_VP_INST_DEST_COL0 3
# define NV30_VP_INST_DEST_COL1 4
# define NV30_VP_INST_DEST_FOGC 5
# define NV30_VP_INST_DEST_PSZ 6
# define NV30_VP_INST_DEST_TC(n) (8+(n))
# define NV30_VP_INST_DEST_CLP(n) (17 + (n))
/* Useful to split the source selection regs into their pieces */
#define NV30_VP_SRC0_HIGH_SHIFT 6
#define NV30_VP_SRC0_HIGH_MASK 0x00007FC0
#define NV30_VP_SRC0_LOW_MASK 0x0000003F
#define NV30_VP_SRC2_HIGH_SHIFT 4
#define NV30_VP_SRC2_HIGH_MASK 0x00007FF0
#define NV30_VP_SRC2_LOW_MASK 0x0000000F
/* Source-register definition - matches NV20 exactly */
#define NV30_VP_SRC_NEGATE (1<<14)
#define NV30_VP_SRC_SWZ_X_SHIFT 12
#define NV30_VP_SRC_REG_SWZ_X_MASK (0x03 <<12)
#define NV30_VP_SRC_SWZ_Y_SHIFT 10
#define NV30_VP_SRC_REG_SWZ_Y_MASK (0x03 <<10)
#define NV30_VP_SRC_SWZ_Z_SHIFT 8
#define NV30_VP_SRC_REG_SWZ_Z_MASK (0x03 << 8)
#define NV30_VP_SRC_SWZ_W_SHIFT 6
#define NV30_VP_SRC_REG_SWZ_W_MASK (0x03 << 6)
#define NV30_VP_SRC_REG_SWZ_ALL_SHIFT 6
#define NV30_VP_SRC_REG_SWZ_ALL_MASK (0xFF << 6)
#define NV30_VP_SRC_TEMP_SRC_SHIFT 2
#define NV30_VP_SRC_REG_TEMP_ID_MASK (0x0F << 0)
#define NV30_VP_SRC_REG_TYPE_SHIFT 0
#define NV30_VP_SRC_REG_TYPE_MASK (0x03 << 0)
#define NV30_VP_SRC_REG_TYPE_TEMP 1
#define NV30_VP_SRC_REG_TYPE_INPUT 2
#define NV30_VP_SRC_REG_TYPE_CONST 3 /* guess */
#include "nvfx_shader.h"
#endif
|
