The Quake sources as originally release under the GPL license on December 21, 1999

1 files changed, 673 insertions, 0 deletions

diff --git a/QW/client/r_drawa.asm b/QW/client/r_drawa.asm
new file mode 100644
index 0000000..5fea9f8
--- /dev/null
+++ b/QW/client/r_drawa.asm
@@ -0,0 +1,673 @@
+ .386P
+ .model FLAT
+ externdef _d_zistepu:dword
+ externdef _d_pzbuffer:dword
+ externdef _d_zistepv:dword
+ externdef _d_zrowbytes:dword
+ externdef _d_ziorigin:dword
+ externdef _r_turb_s:dword
+ externdef _r_turb_t:dword
+ externdef _r_turb_pdest:dword
+ externdef _r_turb_spancount:dword
+ externdef _r_turb_turb:dword
+ externdef _r_turb_pbase:dword
+ externdef _r_turb_sstep:dword
+ externdef _r_turb_tstep:dword
+ externdef _r_bmodelactive:dword
+ externdef _d_sdivzstepu:dword
+ externdef _d_tdivzstepu:dword
+ externdef _d_sdivzstepv:dword
+ externdef _d_tdivzstepv:dword
+ externdef _d_sdivzorigin:dword
+ externdef _d_tdivzorigin:dword
+ externdef _sadjust:dword
+ externdef _tadjust:dword
+ externdef _bbextents:dword
+ externdef _bbextentt:dword
+ externdef _cacheblock:dword
+ externdef _d_viewbuffer:dword
+ externdef _cachewidth:dword
+ externdef _d_pzbuffer:dword
+ externdef _d_zrowbytes:dword
+ externdef _d_zwidth:dword
+ externdef _d_scantable:dword
+ externdef _r_lightptr:dword
+ externdef _r_numvblocks:dword
+ externdef _prowdestbase:dword
+ externdef _pbasesource:dword
+ externdef _r_lightwidth:dword
+ externdef _lightright:dword
+ externdef _lightrightstep:dword
+ externdef _lightdeltastep:dword
+ externdef _lightdelta:dword
+ externdef _lightright:dword
+ externdef _lightdelta:dword
+ externdef _sourcetstep:dword
+ externdef _surfrowbytes:dword
+ externdef _lightrightstep:dword
+ externdef _lightdeltastep:dword
+ externdef _r_sourcemax:dword
+ externdef _r_stepback:dword
+ externdef _colormap:dword
+ externdef _blocksize:dword
+ externdef _sourcesstep:dword
+ externdef _lightleft:dword
+ externdef _blockdivshift:dword
+ externdef _blockdivmask:dword
+ externdef _lightleftstep:dword
+ externdef _r_origin:dword
+ externdef _r_ppn:dword
+ externdef _r_pup:dword
+ externdef _r_pright:dword
+ externdef _ycenter:dword
+ externdef _xcenter:dword
+ externdef _d_vrectbottom_particle:dword
+ externdef _d_vrectright_particle:dword
+ externdef _d_vrecty:dword
+ externdef _d_vrectx:dword
+ externdef _d_pix_shift:dword
+ externdef _d_pix_min:dword
+ externdef _d_pix_max:dword
+ externdef _d_y_aspect_shift:dword
+ externdef _screenwidth:dword
+ externdef _vright:dword
+ externdef _vup:dword
+ externdef _vpn:dword
+ externdef _BOPS_Error:dword
+ externdef _snd_scaletable:dword
+ externdef _paintbuffer:dword
+ externdef _snd_linear_count:dword
+ externdef _snd_p:dword
+ externdef _snd_vol:dword
+ externdef _snd_out:dword
+ externdef _r_leftclipped:dword
+ externdef _r_leftenter:dword
+ externdef _r_rightclipped:dword
+ externdef _r_rightenter:dword
+ externdef _modelorg:dword
+ externdef _xscale:dword
+ externdef _r_refdef:dword
+ externdef _yscale:dword
+ externdef _r_leftexit:dword
+ externdef _r_rightexit:dword
+ externdef _r_lastvertvalid:dword
+ externdef _cacheoffset:dword
+ externdef _newedges:dword
+ externdef _removeedges:dword
+ externdef _r_pedge:dword
+ externdef _r_framecount:dword
+ externdef _r_u1:dword
+ externdef _r_emitted:dword
+ externdef _edge_p:dword
+ externdef _surface_p:dword
+ externdef _surfaces:dword
+ externdef _r_lzi1:dword
+ externdef _r_v1:dword
+ externdef _r_ceilv1:dword
+ externdef _r_nearzi:dword
+ externdef _r_nearzionly:dword
+ externdef _edge_aftertail:dword
+ externdef _edge_tail:dword
+ externdef _current_iv:dword
+ externdef _edge_head_u_shift20:dword
+ externdef _span_p:dword
+ externdef _edge_head:dword
+ externdef _fv:dword
+ externdef _edge_tail_u_shift20:dword
+ externdef _r_apverts:dword
+ externdef _r_anumverts:dword
+ externdef _aliastransform:dword
+ externdef _r_avertexnormals:dword
+ externdef _r_plightvec:dword
+ externdef _r_ambientlight:dword
+ externdef _r_shadelight:dword
+ externdef _aliasxcenter:dword
+ externdef _aliasycenter:dword
+ externdef _a_sstepxfrac:dword
+ externdef _r_affinetridesc:dword
+ externdef _acolormap:dword
+ externdef _d_pcolormap:dword
+ externdef _r_affinetridesc:dword
+ externdef _d_sfrac:dword
+ externdef _d_ptex:dword
+ externdef _d_pedgespanpackage:dword
+ externdef _d_tfrac:dword
+ externdef _d_light:dword
+ externdef _d_zi:dword
+ externdef _d_pdest:dword
+ externdef _d_pz:dword
+ externdef _d_aspancount:dword
+ externdef _erroradjustup:dword
+ externdef _errorterm:dword
+ externdef _d_xdenom:dword
+ externdef _r_p0:dword
+ externdef _r_p1:dword
+ externdef _r_p2:dword
+ externdef _a_tstepxfrac:dword
+ externdef _r_sstepx:dword
+ externdef _r_tstepx:dword
+ externdef _a_ststepxwhole:dword
+ externdef _zspantable:dword
+ externdef _skintable:dword
+ externdef _r_zistepx:dword
+ externdef _erroradjustdown:dword
+ externdef _d_countextrastep:dword
+ externdef _ubasestep:dword
+ externdef _a_ststepxwhole:dword
+ externdef _a_tstepxfrac:dword
+ externdef _r_lstepx:dword
+ externdef _a_spans:dword
+ externdef _erroradjustdown:dword
+ externdef _d_pdestextrastep:dword
+ externdef _d_pzextrastep:dword
+ externdef _d_sfracextrastep:dword
+ externdef _d_ptexextrastep:dword
+ externdef _d_countextrastep:dword
+ externdef _d_tfracextrastep:dword
+ externdef _d_lightextrastep:dword
+ externdef _d_ziextrastep:dword
+ externdef _d_pdestbasestep:dword
+ externdef _d_pzbasestep:dword
+ externdef _d_sfracbasestep:dword
+ externdef _d_ptexbasestep:dword
+ externdef _ubasestep:dword
+ externdef _d_tfracbasestep:dword
+ externdef _d_lightbasestep:dword
+ externdef _d_zibasestep:dword
+ externdef _zspantable:dword
+ externdef _r_lstepy:dword
+ externdef _r_sstepy:dword
+ externdef _r_tstepy:dword
+ externdef _r_zistepy:dword
+ externdef _D_PolysetSetEdgeTable:dword
+ externdef _D_RasterizeAliasPolySmooth:dword
+ externdef float_point5:dword
+ externdef Float2ToThe31nd:dword
+ externdef izistep:dword
+ externdef izi:dword
+ externdef FloatMinus2ToThe31nd:dword
+ externdef float_1:dword
+ externdef float_particle_z_clip:dword
+ externdef float_minus_1:dword
+ externdef float_0:dword
+ externdef fp_16:dword
+ externdef fp_64k:dword
+ externdef fp_1m:dword
+ externdef fp_1m_minus_1:dword
+ externdef fp_8:dword
+ externdef entryvec_table:dword
+ externdef advancetable:dword
+ externdef sstep:dword
+ externdef tstep:dword
+ externdef pspantemp:dword
+ externdef counttemp:dword
+ externdef jumptemp:dword
+ externdef reciprocal_table:dword
+ externdef DP_Count:dword
+ externdef DP_u:dword
+ externdef DP_v:dword
+ externdef DP_32768:dword
+ externdef DP_Color:dword
+ externdef DP_Pix:dword
+ externdef DP_EntryTable:dword
+ externdef pbase:dword
+ externdef s:dword
+ externdef t:dword
+ externdef sfracf:dword
+ externdef tfracf:dword
+ externdef snext:dword
+ externdef tnext:dword
+ externdef spancountminus1:dword
+ externdef zi16stepu:dword
+ externdef sdivz16stepu:dword
+ externdef tdivz16stepu:dword
+ externdef zi8stepu:dword
+ externdef sdivz8stepu:dword
+ externdef tdivz8stepu:dword
+ externdef reciprocal_table_16:dword
+ externdef entryvec_table_16:dword
+ externdef ceil_cw:dword
+ externdef single_cw:dword
+ externdef fp_64kx64k:dword
+ externdef pz:dword
+ externdef spr8entryvec_table:dword
+_DATA SEGMENT
+Ld0 dd 0.0
+Ld1 dd 0.0
+Lstack dd 0
+Lfp_near_clip dd 0.01
+Lceilv0 dd 0
+Lv dd 0
+Lu0 dd 0
+Lv0 dd 0
+Lzi0 dd 0
+_DATA ENDS
+_TEXT SEGMENT
+ align 4
+ public _R_ClipEdge
+_R_ClipEdge:
+ push esi
+ push edi
+ push ebx
+ mov ds:dword ptr[Lstack],esp
+ mov ebx,ds:dword ptr[12+12+esp]
+ mov esi,ds:dword ptr[4+12+esp]
+ mov edx,ds:dword ptr[8+12+esp]
+ test ebx,ebx
+ jz Lemit
+Lcliploop:
+ fld ds:dword ptr[0+0+esi]
+ fmul ds:dword ptr[0+0+ebx]
+ fld ds:dword ptr[0+4+esi]
+ fmul ds:dword ptr[0+4+ebx]
+ fld ds:dword ptr[0+8+esi]
+ fmul ds:dword ptr[0+8+ebx]
+ fxch st(1)
+ faddp st(2),st(0)
+ fld ds:dword ptr[0+0+edx]
+ fmul ds:dword ptr[0+0+ebx]
+ fld ds:dword ptr[0+4+edx]
+ fmul ds:dword ptr[0+4+ebx]
+ fld ds:dword ptr[0+8+edx]
+ fmul ds:dword ptr[0+8+ebx]
+ fxch st(1)
+ faddp st(2),st(0)
+ fxch st(3)
+ faddp st(2),st(0)
+ faddp st(2),st(0)
+ fsub ds:dword ptr[12+ebx]
+ fxch st(1)
+ fsub ds:dword ptr[12+ebx]
+ fxch st(1)
+ fstp ds:dword ptr[Ld0]
+ fstp ds:dword ptr[Ld1]
+ mov eax,ds:dword ptr[Ld0]
+ mov ecx,ds:dword ptr[Ld1]
+ or ecx,eax
+ js Lp2
+Lcontinue:
+ mov ebx,ds:dword ptr[16+ebx]
+ test ebx,ebx
+ jnz Lcliploop
+Lemit:
+ fldcw ds:word ptr[ceil_cw]
+ cmp ds:dword ptr[_r_lastvertvalid],0
+ jz LCalcFirst
+ mov eax,ds:dword ptr[_r_lzi1]
+ mov ecx,ds:dword ptr[_r_u1]
+ mov ds:dword ptr[Lzi0],eax
+ mov ds:dword ptr[Lu0],ecx
+ mov ecx,ds:dword ptr[_r_v1]
+ mov eax,ds:dword ptr[_r_ceilv1]
+ mov ds:dword ptr[Lv0],ecx
+ mov ds:dword ptr[Lceilv0],eax
+ jmp LCalcSecond
+LCalcFirst:
+ call near ptr LTransformAndProject
+ fst ds:dword ptr[Lv0]
+ fxch st(2)
+ fstp ds:dword ptr[Lu0]
+ fstp ds:dword ptr[Lzi0]
+ fistp ds:dword ptr[Lceilv0]
+LCalcSecond:
+ mov esi,edx
+ call near ptr LTransformAndProject
+ fld ds:dword ptr[Lu0]
+ fxch st(3)
+ fld ds:dword ptr[Lzi0]
+ fxch st(3)
+ fld ds:dword ptr[Lv0]
+ fxch st(3)
+ fist ds:dword ptr[_r_ceilv1]
+ fldcw ds:word ptr[single_cw]
+ fst ds:dword ptr[_r_v1]
+ fxch st(4)
+ fcom st(1)
+ fnstsw ax
+ test ah,1
+ jz LP0
+ fstp st(0)
+ fld st(0)
+LP0:
+ fxch st(1)
+ fstp ds:dword ptr[_r_lzi1]
+ fxch st(1)
+ fst ds:dword ptr[_r_u1]
+ fxch st(1)
+ fcom ds:dword ptr[_r_nearzi]
+ fnstsw ax
+ test ah,045h
+ jnz LP1
+ fst ds:dword ptr[_r_nearzi]
+LP1:
+ mov eax,ds:dword ptr[_r_nearzionly]
+ test eax,eax
+ jz LP2
+LPop5AndDone:
+ mov eax,ds:dword ptr[_cacheoffset]
+ mov edx,ds:dword ptr[_r_framecount]
+ cmp eax,07FFFFFFFh
+ jz LDoPop
+ and edx,07FFFFFFFh
+ or edx,080000000h
+ mov ds:dword ptr[_cacheoffset],edx
+LDoPop:
+ fstp st(0)
+ fstp st(0)
+ fstp st(0)
+ fstp st(0)
+ fstp st(0)
+ jmp Ldone
+LP2:
+ mov ebx,ds:dword ptr[Lceilv0]
+ mov edi,ds:dword ptr[_edge_p]
+ mov ecx,ds:dword ptr[_r_ceilv1]
+ mov edx,edi
+ mov esi,ds:dword ptr[_r_pedge]
+ add edx,32
+ cmp ebx,ecx
+ jz LPop5AndDone
+ mov eax,ds:dword ptr[_r_pedge]
+ mov ds:dword ptr[28+edi],eax
+ fstp ds:dword ptr[24+edi]
+ jc LSide0
+LSide1:
+ fsubp st(3),st(0)
+ fsub st(0),st(1)
+ fdivp st(2),st(0)
+ mov ds:dword ptr[_r_emitted],1
+ mov ds:dword ptr[_edge_p],edx
+ mov eax,ds:dword ptr[edx]
+ mov eax,ecx
+ lea ecx,ds:dword ptr[-1+ebx]
+ mov ebx,eax
+ mov eax,ds:dword ptr[_surface_p]
+ mov esi,ds:dword ptr[_surfaces]
+ sub edx,edx
+ sub eax,esi
+ shr eax,6
+ mov ds:dword ptr[16+edi],edx
+ mov ds:dword ptr[16+2+edi],eax
+ sub esi,esi
+ mov ds:dword ptr[Lv],ebx
+ fild ds:dword ptr[Lv]
+ fsubrp st(1),st(0)
+ fmul st(0),st(1)
+ fadd ds:dword ptr[_r_u1]
+ jmp LSideDone
+LSide0:
+ fsub st(0),st(3)
+ fxch st(2)
+ fsub st(0),st(1)
+ fdivp st(2),st(0)
+ mov ds:dword ptr[_r_emitted],1
+ mov ds:dword ptr[_edge_p],edx
+ mov eax,ds:dword ptr[edx]
+ dec ecx
+ mov eax,ds:dword ptr[_surface_p]
+ mov esi,ds:dword ptr[_surfaces]
+ sub edx,edx
+ sub eax,esi
+ shr eax,6
+ mov ds:dword ptr[16+2+edi],edx
+ mov ds:dword ptr[16+edi],eax
+ mov esi,1
+ mov ds:dword ptr[Lv],ebx
+ fild ds:dword ptr[Lv]
+ fsubrp st(1),st(0)
+ fmul st(0),st(1)
+ faddp st(2),st(0)
+ fxch st(1)
+LSideDone:
+ fmul ds:dword ptr[fp_1m]
+ fxch st(1)
+ fmul ds:dword ptr[fp_1m]
+ fxch st(1)
+ fadd ds:dword ptr[fp_1m_minus_1]
+ fxch st(1)
+ fistp ds:dword ptr[4+edi]
+ fistp ds:dword ptr[0+edi]
+ mov eax,ds:dword ptr[0+edi]
+ mov edx,ds:dword ptr[_r_refdef+76]
+ cmp eax,edx
+ jl LP4
+ mov edx,ds:dword ptr[_r_refdef+80]
+ cmp eax,edx
+ jng LP5
+LP4:
+ mov ds:dword ptr[0+edi],edx
+ mov eax,edx
+LP5:
+ add eax,esi
+ mov esi,ds:dword ptr[_newedges+ebx*4]
+ test esi,esi
+ jz LDoFirst
+ cmp ds:dword ptr[0+esi],eax
+ jl LNotFirst
+LDoFirst:
+ mov ds:dword ptr[12+edi],esi
+ mov ds:dword ptr[_newedges+ebx*4],edi
+ jmp LSetRemove
+LNotFirst:
+LFindInsertLoop:
+ mov edx,esi
+ mov esi,ds:dword ptr[12+esi]
+ test esi,esi
+ jz LInsertFound
+ cmp ds:dword ptr[0+esi],eax
+ jl LFindInsertLoop
+LInsertFound:
+ mov ds:dword ptr[12+edi],esi
+ mov ds:dword ptr[12+edx],edi
+LSetRemove:
+ mov eax,ds:dword ptr[_removeedges+ecx*4]
+ mov ds:dword ptr[_removeedges+ecx*4],edi
+ mov ds:dword ptr[20+edi],eax
+Ldone:
+ mov esp,ds:dword ptr[Lstack]
+ pop ebx
+ pop edi
+ pop esi
+ ret
+Lp2:
+ test eax,eax
+ jns Lp1
+ mov eax,ds:dword ptr[Ld1]
+ test eax,eax
+ jns Lp3
+ mov eax,ds:dword ptr[_r_leftclipped]
+ mov ecx,ds:dword ptr[_r_pedge]
+ test eax,eax
+ jnz Ldone
+ mov eax,ds:dword ptr[_r_framecount]
+ and eax,07FFFFFFFh
+ or eax,080000000h
+ mov ds:dword ptr[_cacheoffset],eax
+ jmp Ldone
+Lp1:
+ fld ds:dword ptr[Ld0]
+ fld ds:dword ptr[Ld1]
+ fsubr st(0),st(1)
+ mov ds:dword ptr[_cacheoffset],07FFFFFFFh
+ fdivp st(1),st(0)
+ sub esp,12
+ fld ds:dword ptr[0+8+edx]
+ fsub ds:dword ptr[0+8+esi]
+ fld ds:dword ptr[0+4+edx]
+ fsub ds:dword ptr[0+4+esi]
+ fld ds:dword ptr[0+0+edx]
+ fsub ds:dword ptr[0+0+esi]
+ mov edx,esp
+ mov eax,ds:dword ptr[20+ebx]
+ test al,al
+ fmul st(0),st(3)
+ fxch st(1)
+ fmul st(0),st(3)
+ fxch st(2)
+ fmulp st(3),st(0)
+ fadd ds:dword ptr[0+0+esi]
+ fxch st(1)
+ fadd ds:dword ptr[0+4+esi]
+ fxch st(2)
+ fadd ds:dword ptr[0+8+esi]
+ fxch st(1)
+ fstp ds:dword ptr[0+0+esp]
+ fstp ds:dword ptr[0+8+esp]
+ fstp ds:dword ptr[0+4+esp]
+ jz Ltestright
+ mov ds:dword ptr[_r_leftclipped],1
+ mov eax,ds:dword ptr[0+0+esp]
+ mov ds:dword ptr[_r_leftexit+0+0],eax
+ mov eax,ds:dword ptr[0+4+esp]
+ mov ds:dword ptr[_r_leftexit+0+4],eax
+ mov eax,ds:dword ptr[0+8+esp]
+ mov ds:dword ptr[_r_leftexit+0+8],eax
+ jmp Lcontinue
+Ltestright:
+ test ah,ah
+ jz Lcontinue
+ mov ds:dword ptr[_r_rightclipped],1
+ mov eax,ds:dword ptr[0+0+esp]
+ mov ds:dword ptr[_r_rightexit+0+0],eax
+ mov eax,ds:dword ptr[0+4+esp]
+ mov ds:dword ptr[_r_rightexit+0+4],eax
+ mov eax,ds:dword ptr[0+8+esp]
+ mov ds:dword ptr[_r_rightexit+0+8],eax
+ jmp Lcontinue
+Lp3:
+ mov ds:dword ptr[_r_lastvertvalid],0
+ fld ds:dword ptr[Ld0]
+ fld ds:dword ptr[Ld1]
+ fsubr st(0),st(1)
+ mov ds:dword ptr[_cacheoffset],07FFFFFFFh
+ fdivp st(1),st(0)
+ sub esp,12
+ fld ds:dword ptr[0+8+edx]
+ fsub ds:dword ptr[0+8+esi]
+ fld ds:dword ptr[0+4+edx]
+ fsub ds:dword ptr[0+4+esi]
+ fld ds:dword ptr[0+0+edx]
+ fsub ds:dword ptr[0+0+esi]
+ mov eax,ds:dword ptr[20+ebx]
+ test al,al
+ fmul st(0),st(3)
+ fxch st(1)
+ fmul st(0),st(3)
+ fxch st(2)
+ fmulp st(3),st(0)
+ fadd ds:dword ptr[0+0+esi]
+ fxch st(1)
+ fadd ds:dword ptr[0+4+esi]
+ fxch st(2)
+ fadd ds:dword ptr[0+8+esi]
+ fxch st(1)
+ fstp ds:dword ptr[0+0+esp]
+ fstp ds:dword ptr[0+8+esp]
+ fstp ds:dword ptr[0+4+esp]
+ mov esi,esp
+ jz Ltestright2
+ mov ds:dword ptr[_r_leftclipped],1
+ mov eax,ds:dword ptr[0+0+esp]
+ mov ds:dword ptr[_r_leftenter+0+0],eax
+ mov eax,ds:dword ptr[0+4+esp]
+ mov ds:dword ptr[_r_leftenter+0+4],eax
+ mov eax,ds:dword ptr[0+8+esp]
+ mov ds:dword ptr[_r_leftenter+0+8],eax
+ jmp Lcontinue
+Ltestright2:
+ test ah,ah
+ jz Lcontinue
+ mov ds:dword ptr[_r_rightclipped],1
+ mov eax,ds:dword ptr[0+0+esp]
+ mov ds:dword ptr[_r_rightenter+0+0],eax
+ mov eax,ds:dword ptr[0+4+esp]
+ mov ds:dword ptr[_r_rightenter+0+4],eax
+ mov eax,ds:dword ptr[0+8+esp]
+ mov ds:dword ptr[_r_rightenter+0+8],eax
+ jmp Lcontinue
+LTransformAndProject:
+ fld ds:dword ptr[0+0+esi]
+ fsub ds:dword ptr[_modelorg+0]
+ fld ds:dword ptr[0+4+esi]
+ fsub ds:dword ptr[_modelorg+4]
+ fld ds:dword ptr[0+8+esi]
+ fsub ds:dword ptr[_modelorg+8]
+ fxch st(2)
+ fld st(0)
+ fmul ds:dword ptr[_vpn+0]
+ fld st(1)
+ fmul ds:dword ptr[_vright+0]
+ fxch st(2)
+ fmul ds:dword ptr[_vup+0]
+ fld st(3)
+ fmul ds:dword ptr[_vpn+4]
+ fld st(4)
+ fmul ds:dword ptr[_vright+4]
+ fxch st(5)
+ fmul ds:dword ptr[_vup+4]
+ fxch st(1)
+ faddp st(3),st(0)
+ fxch st(3)
+ faddp st(4),st(0)
+ faddp st(2),st(0)
+ fld st(3)
+ fmul ds:dword ptr[_vpn+8]
+ fld st(4)
+ fmul ds:dword ptr[_vright+8]
+ fxch st(5)
+ fmul ds:dword ptr[_vup+8]
+ fxch st(1)
+ faddp st(2),st(0)
+ fxch st(4)
+ faddp st(3),st(0)
+ fxch st(1)
+ faddp st(3),st(0)
+ fcom ds:dword ptr[Lfp_near_clip]
+ fnstsw ax
+ test ah,1
+ jz LNoClip
+ fstp st(0)
+ fld ds:dword ptr[Lfp_near_clip]
+LNoClip:
+ fdivr ds:dword ptr[float_1]
+ fxch st(1)
+ fld ds:dword ptr[_xscale]
+ fmul st(0),st(2)
+ fmulp st(1),st(0)
+ fadd ds:dword ptr[_xcenter]
+ fcom ds:dword ptr[_r_refdef+68]
+ fnstsw ax
+ test ah,1
+ jz LClampP0
+ fstp st(0)
+ fld ds:dword ptr[_r_refdef+68]
+LClampP0:
+ fcom ds:dword ptr[_r_refdef+84]
+ fnstsw ax
+ test ah,045h
+ jnz LClampP1
+ fstp st(0)
+ fld ds:dword ptr[_r_refdef+84]
+LClampP1:
+ fld st(1)
+ fmul ds:dword ptr[_yscale]
+ fmulp st(3),st(0)
+ fxch st(2)
+ fsubr ds:dword ptr[_ycenter]
+ fcom ds:dword ptr[_r_refdef+72]
+ fnstsw ax
+ test ah,1
+ jz LClampP2
+ fstp st(0)
+ fld ds:dword ptr[_r_refdef+72]
+LClampP2:
+ fcom ds:dword ptr[_r_refdef+88]
+ fnstsw ax
+ test ah,045h
+ jnz LClampP3
+ fstp st(0)
+ fld ds:dword ptr[_r_refdef+88]
+LClampP3:
+ ret
+_TEXT ENDS
+ END