r500/drm/shadertoy_circle.fs.asm
Zack Buhman fe0684ca5e assembler/fs: add support for NOP
In shadertoy_circle.fs.asm, this is required for presubtract dependencies.
2025-10-21 12:32:24 -05:00

23 lines
568 B
NASM

# d = length(uv)
src0.rgb = temp[0] :
temp[0].r = DP3 src0.rg0 src0.rg0 ;
src0.rgb = temp[0] :
temp[0].a = RSQ |src0.r| ;
NOP
src0.a = temp[0] :
temp[0].a = RCP src0.a ;
# d = abs(d - 0.5) * 1 + -0.1
src0.a = float(48), # 0.5
src1.a = temp[0], # d
src2.a = float(29), # 0.1015625
srcp.a = sub : # (src1.a - src0.a)
temp[0].a = MAD |srcp.a| src0.1 -src2.a ;
# d = (d >= 0.0) ? 1.0 : 0.0
# out.rgba = vec4(d, 0, 0, 1)
OUT TEX_SEM_WAIT
src0.a = temp[0] :
out[0].a = MAX src0.1 src0.1 ,
out[0].rgb = CMP src0.100 src0.000 src0.a00 ;