From: José Fonseca Date: Tue, 1 Jun 2010 15:30:24 +0000 (+0100) Subject: tgsi: Remove tgsi-instruction-set.txt. X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=2c67e754cf45b4f0981a82bfb9936bae384aa1e3;p=mesa.git tgsi: Remove tgsi-instruction-set.txt. Deprecated by tgsi.rst, and no point in keeping it around if it's not being updated. --- diff --git a/src/gallium/auxiliary/tgsi/tgsi-instruction-set.txt b/src/gallium/auxiliary/tgsi/tgsi-instruction-set.txt deleted file mode 100644 index 5d9eed92580..00000000000 --- a/src/gallium/auxiliary/tgsi/tgsi-instruction-set.txt +++ /dev/null @@ -1,1127 +0,0 @@ -TGSI Instruction Specification -============================== -============================== - - -1 Instruction Set Operations -============================= - - -1.1 GL_NV_vertex_program -------------------------- - - -1.1.1 ARL - Address Register Load - - dst.x = floor(src.x) - dst.y = floor(src.y) - dst.z = floor(src.z) - dst.w = floor(src.w) - - -1.1.2 MOV - Move - - dst.x = src.x - dst.y = src.y - dst.z = src.z - dst.w = src.w - - -1.1.3 LIT - Light Coefficients - - dst.x = 1.0 - dst.y = max(src.x, 0.0) - dst.z = (src.x > 0.0) ? pow(max(src.y, 0.0), clamp(src.w, -128.0, 128.0)) : 0.0 - dst.w = 1.0 - - -1.1.4 RCP - Reciprocal - - dst.x = 1.0 / src.x - dst.y = 1.0 / src.x - dst.z = 1.0 / src.x - dst.w = 1.0 / src.x - - -1.1.5 RSQ - Reciprocal Square Root - - dst.x = 1.0 / sqrt(abs(src.x)) - dst.y = 1.0 / sqrt(abs(src.x)) - dst.z = 1.0 / sqrt(abs(src.x)) - dst.w = 1.0 / sqrt(abs(src.x)) - - -1.1.6 EXP - Approximate Exponential Base 2 - - dst.x = pow(2.0, floor(src.x)) - dst.y = src.x - floor(src.x) - dst.z = pow(2.0, src.x) - dst.w = 1.0 - - -1.1.7 LOG - Approximate Logarithm Base 2 - - dst.x = floor(lg2(abs(src.x))) - dst.y = abs(src.x) / pow(2.0, floor(lg2(abs(src.x)))) - dst.z = lg2(abs(src.x)) - dst.w = 1.0 - - -1.1.8 MUL - Multiply - - dst.x = src0.x * src1.x - dst.y = src0.y * src1.y - dst.z = src0.z * src1.z - dst.w = src0.w * src1.w - - -1.1.9 ADD - Add - - dst.x = src0.x + src1.x - dst.y = src0.y + src1.y - dst.z = src0.z + src1.z - dst.w = src0.w + src1.w - - -1.1.10 DP3 - 3-component Dot Product - - dst.x = src0.x * src1.x + src0.y * src1.y + src0.z * src1.z - dst.y = src0.x * src1.x + src0.y * src1.y + src0.z * src1.z - dst.z = src0.x * src1.x + src0.y * src1.y + src0.z * src1.z - dst.w = src0.x * src1.x + src0.y * src1.y + src0.z * src1.z - - -1.1.11 DP4 - 4-component Dot Product - - dst.x = src0.x * src1.x + src0.y * src1.y + src0.z * src1.z + src0.w * src1.w - dst.y = src0.x * src1.x + src0.y * src1.y + src0.z * src1.z + src0.w * src1.w - dst.z = src0.x * src1.x + src0.y * src1.y + src0.z * src1.z + src0.w * src1.w - dst.w = src0.x * src1.x + src0.y * src1.y + src0.z * src1.z + src0.w * src1.w - - -1.1.12 DST - Distance Vector - - dst.x = 1.0 - dst.y = src0.y * src1.y - dst.z = src0.z - dst.w = src1.w - - -1.1.13 MIN - Minimum - - dst.x = min(src0.x, src1.x) - dst.y = min(src0.y, src1.y) - dst.z = min(src0.z, src1.z) - dst.w = min(src0.w, src1.w) - - -1.1.14 MAX - Maximum - - dst.x = max(src0.x, src1.x) - dst.y = max(src0.y, src1.y) - dst.z = max(src0.z, src1.z) - dst.w = max(src0.w, src1.w) - - -1.1.15 SLT - Set On Less Than - - dst.x = (src0.x < src1.x) ? 1.0 : 0.0 - dst.y = (src0.y < src1.y) ? 1.0 : 0.0 - dst.z = (src0.z < src1.z) ? 1.0 : 0.0 - dst.w = (src0.w < src1.w) ? 1.0 : 0.0 - - -1.1.16 SGE - Set On Greater Equal Than - - dst.x = (src0.x >= src1.x) ? 1.0 : 0.0 - dst.y = (src0.y >= src1.y) ? 1.0 : 0.0 - dst.z = (src0.z >= src1.z) ? 1.0 : 0.0 - dst.w = (src0.w >= src1.w) ? 1.0 : 0.0 - - -1.1.17 MAD - Multiply And Add - - dst.x = src0.x * src1.x + src2.x - dst.y = src0.y * src1.y + src2.y - dst.z = src0.z * src1.z + src2.z - dst.w = src0.w * src1.w + src2.w - - -1.2 GL_ATI_fragment_shader ---------------------------- - - -1.2.1 SUB - Subtract - - dst.x = src0.x - src1.x - dst.y = src0.y - src1.y - dst.z = src0.z - src1.z - dst.w = src0.w - src1.w - - -1.2.2 DOT3 - 3-component Dot Product - - Alias for DP3. - - -1.2.3 DOT4 - 4-component Dot Product - - Alias for DP4. - - -1.2.4 LERP - Linear Interpolate - - dst.x = src0.x * (src1.x - src2.x) + src2.x - dst.y = src0.y * (src1.y - src2.y) + src2.y - dst.z = src0.z * (src1.z - src2.z) + src2.z - dst.w = src0.w * (src1.w - src2.w) + src2.w - - -1.2.5 CND - Condition - - dst.x = (src2.x > 0.5) ? src0.x : src1.x - dst.y = (src2.y > 0.5) ? src0.y : src1.y - dst.z = (src2.z > 0.5) ? src0.z : src1.z - dst.w = (src2.w > 0.5) ? src0.w : src1.w - - -1.2.6 CND0 - Condition Zero - - Removed. Use (CMP src2, src1, src0) instead. - -1.2.7 DOT2ADD - 2-component Dot Product And Add - - dst.x = src0.x * src1.x + src0.y * src1.y + src2.x - dst.y = src0.x * src1.x + src0.y * src1.y + src2.x - dst.z = src0.x * src1.x + src0.y * src1.y + src2.x - dst.w = src0.x * src1.x + src0.y * src1.y + src2.x - - -1.3 GL_EXT_vertex_shader -------------------------- - - -1.3.1 INDEX - Array Lookup - - Considered for removal from language. - - -1.3.2 NEGATE - Negate - - Considered for removal from language. - - -1.3.3 MADD - Multiply And Add - - Alias for MAD. - - -1.3.4 FRAC - Fraction - - dst.x = src.x - floor(src.x) - dst.y = src.y - floor(src.y) - dst.z = src.z - floor(src.z) - dst.w = src.w - floor(src.w) - - -1.3.5 SETGE - Set On Greater Equal - - Alias for SGE. - - -1.3.6 SETLT - Set On Less Than - - Alias for SLT. - - -1.3.7 CLAMP - Clamp - - dst.x = clamp(src0.x, src1.x, src2.x) - dst.y = clamp(src0.y, src1.y, src2.y) - dst.z = clamp(src0.z, src1.z, src2.z) - dst.w = clamp(src0.w, src1.w, src2.w) - - -1.3.8 FLOOR - Floor - - dst.x = floor(src.x) - dst.y = floor(src.y) - dst.z = floor(src.z) - dst.w = floor(src.w) - - -1.3.9 ROUND - Round - - dst.x = round(src.x) - dst.y = round(src.y) - dst.z = round(src.z) - dst.w = round(src.w) - - -1.3.10 EXPBASE2 - Exponential Base 2 - - dst.x = pow(2.0, src.x) - dst.y = pow(2.0, src.x) - dst.z = pow(2.0, src.x) - dst.w = pow(2.0, src.x) - - -1.3.11 LOGBASE2 - Logarithm Base 2 - - dst.x = lg2(src.x) - dst.y = lg2(src.x) - dst.z = lg2(src.x) - dst.w = lg2(src.x) - - -1.3.12 POWER - Power - - dst.x = pow(src0.x, src1.x) - dst.y = pow(src0.x, src1.x) - dst.z = pow(src0.x, src1.x) - dst.w = pow(src0.x, src1.x) - - -1.3.13 RECIP - Reciprocal - - Alias for RCP. - - -1.3.14 RECIPSQRT - Reciprocal Square Root - - Alias for RSQ. - - -1.3.15 CROSSPRODUCT - Cross Product - - dst.x = src0.y * src1.z - src1.y * src0.z - dst.y = src0.z * src1.x - src1.z * src0.x - dst.z = src0.x * src1.y - src1.x * src0.y - dst.w = 1.0 - - -1.3.16 MULTIPLYMATRIX - Multiply Matrix - - Considered for removal from language. - - -1.4 GL_NV_vertex_program1_1 ----------------------------- - - -1.4.1 ABS - Absolute - - dst.x = abs(src.x) - dst.y = abs(src.y) - dst.z = abs(src.z) - dst.w = abs(src.w) - - -1.4.2 RCC - Reciprocal Clamped - - dst.x = (1.0 / src.x) > 0.0 ? clamp(1.0 / src.x, 5.42101e-020, 1.884467e+019) : clamp(1.0 / src.x, -1.884467e+019, -5.42101e-020) - dst.y = (1.0 / src.x) > 0.0 ? clamp(1.0 / src.x, 5.42101e-020, 1.884467e+019) : clamp(1.0 / src.x, -1.884467e+019, -5.42101e-020) - dst.z = (1.0 / src.x) > 0.0 ? clamp(1.0 / src.x, 5.42101e-020, 1.884467e+019) : clamp(1.0 / src.x, -1.884467e+019, -5.42101e-020) - dst.w = (1.0 / src.x) > 0.0 ? clamp(1.0 / src.x, 5.42101e-020, 1.884467e+019) : clamp(1.0 / src.x, -1.884467e+019, -5.42101e-020) - - -1.4.3 DPH - Homogeneous Dot Product - - dst.x = src0.x * src1.x + src0.y * src1.y + src0.z * src1.z + src1.w - dst.y = src0.x * src1.x + src0.y * src1.y + src0.z * src1.z + src1.w - dst.z = src0.x * src1.x + src0.y * src1.y + src0.z * src1.z + src1.w - dst.w = src0.x * src1.x + src0.y * src1.y + src0.z * src1.z + src1.w - - -1.5 GL_NV_fragment_program ---------------------------- - - -1.5.1 COS - Cosine - - dst.x = cos(src.x) - dst.y = cos(src.x) - dst.z = cos(src.x) - dst.w = cos(src.w) - - -1.5.2 DDX - Derivative Relative To X - - dst.x = partialx(src.x) - dst.y = partialx(src.y) - dst.z = partialx(src.z) - dst.w = partialx(src.w) - - -1.5.3 DDY - Derivative Relative To Y - - dst.x = partialy(src.x) - dst.y = partialy(src.y) - dst.z = partialy(src.z) - dst.w = partialy(src.w) - - -1.5.4 EX2 - Exponential Base 2 - - Alias for EXPBASE2. - - -1.5.5 FLR - Floor - - Alias for FLOOR. - - -1.5.6 FRC - Fraction - - Alias for FRAC. - - -1.5.7 KILP - Predicated Discard - - discard - - -1.5.8 LG2 - Logarithm Base 2 - - Alias for LOGBASE2. - - -1.5.9 LRP - Linear Interpolate - - Alias for LERP. - - -1.5.10 PK2H - Pack Two 16-bit Floats - - TBD - - -1.5.11 PK2US - Pack Two Unsigned 16-bit Scalars - - TBD - - -1.5.12 PK4B - Pack Four Signed 8-bit Scalars - - TBD - - -1.5.13 PK4UB - Pack Four Unsigned 8-bit Scalars - - TBD - - -1.5.14 POW - Power - - Alias for POWER. - - -1.5.15 RFL - Reflection Vector - - dst.x = 2.0 * (src0.x * src1.x + src0.y * src1.y + src0.z * src1.z) / (src0.x * src0.x + src0.y * src0.y + src0.z * src0.z) * src0.x - src1.x - dst.y = 2.0 * (src0.x * src1.x + src0.y * src1.y + src0.z * src1.z) / (src0.x * src0.x + src0.y * src0.y + src0.z * src0.z) * src0.y - src1.y - dst.z = 2.0 * (src0.x * src1.x + src0.y * src1.y + src0.z * src1.z) / (src0.x * src0.x + src0.y * src0.y + src0.z * src0.z) * src0.z - src1.z - dst.w = 1.0 - - -1.5.16 SEQ - Set On Equal - - dst.x = (src0.x == src1.x) ? 1.0 : 0.0 - dst.y = (src0.y == src1.y) ? 1.0 : 0.0 - dst.z = (src0.z == src1.z) ? 1.0 : 0.0 - dst.w = (src0.w == src1.w) ? 1.0 : 0.0 - - -1.5.17 SFL - Set On False - - dst.x = 0.0 - dst.y = 0.0 - dst.z = 0.0 - dst.w = 0.0 - - -1.5.18 SGT - Set On Greater Than - - dst.x = (src0.x > src1.x) ? 1.0 : 0.0 - dst.y = (src0.y > src1.y) ? 1.0 : 0.0 - dst.z = (src0.z > src1.z) ? 1.0 : 0.0 - dst.w = (src0.w > src1.w) ? 1.0 : 0.0 - - -1.5.19 SIN - Sine - - dst.x = sin(src.x) - dst.y = sin(src.x) - dst.z = sin(src.x) - dst.w = sin(src.w) - - -1.5.20 SLE - Set On Less Equal Than - - dst.x = (src0.x <= src1.x) ? 1.0 : 0.0 - dst.y = (src0.y <= src1.y) ? 1.0 : 0.0 - dst.z = (src0.z <= src1.z) ? 1.0 : 0.0 - dst.w = (src0.w <= src1.w) ? 1.0 : 0.0 - - -1.5.21 SNE - Set On Not Equal - - dst.x = (src0.x != src1.x) ? 1.0 : 0.0 - dst.y = (src0.y != src1.y) ? 1.0 : 0.0 - dst.z = (src0.z != src1.z) ? 1.0 : 0.0 - dst.w = (src0.w != src1.w) ? 1.0 : 0.0 - - -1.5.22 STR - Set On True - - dst.x = 1.0 - dst.y = 1.0 - dst.z = 1.0 - dst.w = 1.0 - - -1.5.23 TEX - Texture Lookup - - TBD - - -1.5.24 TXD - Texture Lookup with Derivatives - - TBD - - -1.5.25 TXP - Projective Texture Lookup - - TBD - - -1.5.26 UP2H - Unpack Two 16-Bit Floats - - TBD - - -1.5.27 UP2US - Unpack Two Unsigned 16-Bit Scalars - - TBD - - -1.5.28 UP4B - Unpack Four Signed 8-Bit Values - - TBD - - -1.5.29 UP4UB - Unpack Four Unsigned 8-Bit Scalars - - TBD - - -1.5.30 X2D - 2D Coordinate Transformation - - dst.x = src0.x + src1.x * src2.x + src1.y * src2.y - dst.y = src0.y + src1.x * src2.z + src1.y * src2.w - dst.z = src0.x + src1.x * src2.x + src1.y * src2.y - dst.w = src0.y + src1.x * src2.z + src1.y * src2.w - - -1.6 GL_NV_vertex_program2 --------------------------- - - -1.6.1 ARA - Address Register Add - - TBD - - -1.6.2 ARR - Address Register Load With Round - - dst.x = round(src.x) - dst.y = round(src.y) - dst.z = round(src.z) - dst.w = round(src.w) - - -1.6.3 BRA - Branch - - pc = target - - -1.6.4 CAL - Subroutine Call - - push(pc) - pc = target - - -1.6.5 RET - Subroutine Call Return - - pc = pop() - - -1.6.6 SSG - Set Sign - - dst.x = (src.x > 0.0) ? 1.0 : (src.x < 0.0) ? -1.0 : 0.0 - dst.y = (src.y > 0.0) ? 1.0 : (src.y < 0.0) ? -1.0 : 0.0 - dst.z = (src.z > 0.0) ? 1.0 : (src.z < 0.0) ? -1.0 : 0.0 - dst.w = (src.w > 0.0) ? 1.0 : (src.w < 0.0) ? -1.0 : 0.0 - - -1.7 GL_ARB_vertex_program --------------------------- - - -1.7.1 SWZ - Extended Swizzle - - dst.x = src.x - dst.y = src.y - dst.z = src.z - dst.w = src.w - - -1.7.2 XPD - Cross Product - - Alias for CROSSPRODUCT. - - -1.8 GL_ARB_fragment_program ----------------------------- - - -1.8.1 CMP - Compare - - dst.x = (src0.x < 0.0) ? src1.x : src2.x - dst.y = (src0.y < 0.0) ? src1.y : src2.y - dst.z = (src0.z < 0.0) ? src1.z : src2.z - dst.w = (src0.w < 0.0) ? src1.w : src2.w - - -1.8.2 KIL - Conditional Discard - - if (src.x < 0.0 || src.y < 0.0 || src.z < 0.0 || src.w < 0.0) - discard - endif - - -1.8.3 SCS - Sine Cosine - - dst.x = cos(src.x) - dst.y = sin(src.x) - dst.z = 0.0 - dst.y = 1.0 - - -1.8.4 TXB - Texture Lookup With Bias - - TBD - - -1.9 GL_NV_fragment_program2 ----------------------------- - - -1.9.1 NRM - 3-component Vector Normalise - - dst.x = src.x / (src.x * src.x + src.y * src.y + src.z * src.z) - dst.y = src.y / (src.x * src.x + src.y * src.y + src.z * src.z) - dst.z = src.z / (src.x * src.x + src.y * src.y + src.z * src.z) - dst.w = 1.0 - - -1.9.2 DIV - Divide - - dst.x = src0.x / src1.x - dst.y = src0.y / src1.y - dst.z = src0.z / src1.z - dst.w = src0.w / src1.w - - -1.9.3 DP2 - 2-component Dot Product - - dst.x = src0.x * src1.x + src0.y * src1.y - dst.y = src0.x * src1.x + src0.y * src1.y - dst.z = src0.x * src1.x + src0.y * src1.y - dst.w = src0.x * src1.x + src0.y * src1.y - - -1.9.4 DP2A - 2-component Dot Product And Add - - Alias for DOT2ADD. - - -1.9.5 TXL - Texture Lookup With LOD - - TBD - - -1.9.6 BRK - Break - - TBD - - -1.9.7 IF - If - - TBD - - -1.9.10 ELSE - Else - - TBD - - -1.9.11 ENDIF - End If - - TBD - - -1.10 GL_NV_vertex_program3 ---------------------------- - - -1.10.1 PUSHA - Push Address Register On Stack - - push(src.x) - push(src.y) - push(src.z) - push(src.w) - - -1.10.2 POPA - Pop Address Register From Stack - - dst.w = pop() - dst.z = pop() - dst.y = pop() - dst.x = pop() - - -1.11 GL_NV_gpu_program4 ------------------------- - - -1.11.1 CEIL - Ceiling - - dst.x = ceil(src.x) - dst.y = ceil(src.y) - dst.z = ceil(src.z) - dst.w = ceil(src.w) - - -1.11.2 I2F - Integer To Float - - dst.x = (float) src.x - dst.y = (float) src.y - dst.z = (float) src.z - dst.w = (float) src.w - - -1.11.3 NOT - Bitwise Not - - dst.x = ~src.x - dst.y = ~src.y - dst.z = ~src.z - dst.w = ~src.w - - -1.11.4 TRUNC - Truncate - - dst.x = trunc(src.x) - dst.y = trunc(src.y) - dst.z = trunc(src.z) - dst.w = trunc(src.w) - - -1.11.5 SHL - Shift Left - - dst.x = src0.x << src1.x - dst.y = src0.y << src1.x - dst.z = src0.z << src1.x - dst.w = src0.w << src1.x - - -1.11.6 SHR - Shift Right - - dst.x = src0.x >> src1.x - dst.y = src0.y >> src1.x - dst.z = src0.z >> src1.x - dst.w = src0.w >> src1.x - - -1.11.7 AND - Bitwise And - - dst.x = src0.x & src1.x - dst.y = src0.y & src1.y - dst.z = src0.z & src1.z - dst.w = src0.w & src1.w - - -1.11.8 OR - Bitwise Or - - dst.x = src0.x | src1.x - dst.y = src0.y | src1.y - dst.z = src0.z | src1.z - dst.w = src0.w | src1.w - - -1.11.9 MOD - Modulus - - dst.x = src0.x % src1.x - dst.y = src0.y % src1.y - dst.z = src0.z % src1.z - dst.w = src0.w % src1.w - - -1.11.10 XOR - Bitwise Xor - - dst.x = src0.x ^ src1.x - dst.y = src0.y ^ src1.y - dst.z = src0.z ^ src1.z - dst.w = src0.w ^ src1.w - - -1.11.11 SAD - Sum Of Absolute Differences - - dst.x = abs(src0.x - src1.x) + src2.x - dst.y = abs(src0.y - src1.y) + src2.y - dst.z = abs(src0.z - src1.z) + src2.z - dst.w = abs(src0.w - src1.w) + src2.w - - -1.11.12 TXF - Texel Fetch - - TBD - - -1.11.13 TXQ - Texture Size Query - - TBD - - -1.11.14 CONT - Continue - - TBD - - -1.12 GL_NV_geometry_program4 ------------------------------ - - -1.12.1 EMIT - Emit - - TBD - - -1.12.2 ENDPRIM - End Primitive - - TBD - - -1.13 GLSL ----------- - - -1.13.1 BGNLOOP - Begin a Loop - - TBD - - -1.13.2 BGNSUB - Begin Subroutine - - TBD - - -1.13.3 ENDLOOP - End a Loop - - TBD - - -1.13.4 ENDSUB - End Subroutine - - TBD - - -1.13.5 INT - Truncate - - Alias for TRUNC. - - -1.13.6 NOISE1 - 1D Noise - - TBD - - -1.13.7 NOISE2 - 2D Noise - - TBD - - -1.13.8 NOISE3 - 3D Noise - - TBD - - -1.13.9 NOISE4 - 4D Noise - - TBD - - -1.13.10 NOP - No Operation - - Do nothing. - - -1.14 ps_1_1 ------------- - - -1.14.1 TEXKILL - Conditional Discard - - Alias for KIL. - - -1.15 ps_1_4 ------------- - - -1.15.1 TEXLD - Texture Lookup - - Alias for TEX. - - -1.16 ps_2_0 ------------- - - -1.16.1 M4X4 - Multiply Matrix - - Alias for MULTIPLYMATRIX. - - -1.16.2 M4X3 - Multiply Matrix - - Considered for removal from language. - - -1.16.3 M3X4 - Multiply Matrix - - Considered for removal from language. - - -1.16.4 M3X3 - Multiply Matrix - - Considered for removal from language. - - -1.16.5 M3X2 - Multiply Matrix - - Considered for removal from language. - - -1.16.6 CRS - Cross Product - - Alias for XPD. - - -1.16.7 NRM4 - 4-component Vector Normalise - - dst.x = src.x / (src.x * src.x + src.y * src.y + src.z * src.z + src.w * src.w) - dst.y = src.y / (src.x * src.x + src.y * src.y + src.z * src.z + src.w * src.w) - dst.z = src.z / (src.x * src.x + src.y * src.y + src.z * src.z + src.w * src.w) - dst.w = src.w / (src.x * src.x + src.y * src.y + src.z * src.z + src.w * src.w) - - -1.16.8 SINCOS - Sine Cosine - - Alias for SCS. - - -1.16.9 TEXLDB - Texture Lookup With Bias - - Alias for TXB. - - -1.16.10 DP2ADD - 2-component Dot Product And Add - - Alias for DP2A. - - -1.17 ps_2_x ------------- - - -1.17.1 CALL - Subroutine Call - - Alias for CAL. - - -1.17.2 CALLNZ - Subroutine Call If Not Zero - - TBD - - -1.17.3 IFC - If - - TBD - - -1.17.4 BREAK - Break - - Alias for BRK. - - -1.17.5 BREAKC - Break Conditional - - TBD - - -1.17.6 DSX - Derivative Relative To X - - Alias for DDX. - - -1.17.7 DSY - Derivative Relative To Y - - Alias for DDY. - - -1.17.8 TEXLDD - Texture Lookup with Derivatives - - Alias for TXD. - - -1.18 vs_1_1 ------------- - - -1.18.1 EXPP - Approximate Exponential Base 2 - - Use EXP. See also 1.19.3. - - -1.18.2 LOGP - Logarithm Base 2 - - Use LOG. See also 1.19.4. - - -1.19 vs_2_0 ------------- - - -1.19.1 SGN - Set Sign - - Alias for SSG. - - -1.19.2 MOVA - Move Address Register - - Alias for ARR. - - -1.19.3 EXPP - Approximate Exponential Base 2 - - Use EX2. - - -1.19.4 LOGP - Logarithm Base 2 - - Use LG2. - - -2 Explanation of symbols used -============================== - - -2.1 Functions --------------- - - - abs(x) Absolute value of x. - |x| - (x < 0.0) ? -x : x - - ceil(x) Ceiling of x. - - clamp(x,y,z) Clamp x between y and z. - (x < y) ? y : (x > z) ? z : x - - cos(x) Cosine of x. - - floor(x) Floor of x. - - lg2(x) Logarithm base 2 of x. - - max(x,y) Maximum of x and y. - (x > y) ? x : y - - min(x,y) Minimum of x and y. - (x < y) ? x : y - - partialx(x) Derivative of x relative to fragment's X. - - partialy(x) Derivative of x relative to fragment's Y. - - pop() Pop from stack. - - pow(x,y) Raise x to power of y. - - push(x) Push x on stack. - - round(x) Round x. - - sin(x) Sine of x. - - sqrt(x) Square root of x. - - trunc(x) Truncate x. - - -2.2 Keywords -------------- - - - discard Discard fragment. - - dst First destination register. - - dst0 First destination register. - - pc Program counter. - - src First source register. - - src0 First source register. - - src1 Second source register. - - src2 Third source register. - - target Label of target instruction. - - -3 Other tokens -=============== - - -3.1 Declaration Semantic -------------------------- - - - Follows Declaration token if Semantic bit is set. - - Since its purpose is to link a shader with other stages of the pipeline, - it is valid to follow only those Declaration tokens that declare a register - either in INPUT or OUTPUT file. - - SemanticName field contains the semantic name of the register being declared. - There is no default value. - - SemanticIndex is an optional subscript that can be used to distinguish - different register declarations with the same semantic name. The default value - is 0. - - The meanings of the individual semantic names are explained in the following - sections. - - -3.1.1 FACE - - Valid only in a fragment shader INPUT declaration. - - FACE.x is negative when the primitive is back facing. FACE.x is positive - when the primitive is front facing.