Fix crash in book/stencil.
Allow drivers to perform the perspective divide themselves. Assembly
to do cliptesting without perspective divide for size-4 vectors.
diff --git a/src/mesa/main/light.c b/src/mesa/main/light.c
index 1eed79b..bee9f0d 100644
--- a/src/mesa/main/light.c
+++ b/src/mesa/main/light.c
@@ -1,4 +1,4 @@
-/* $Id: light.c,v 1.33 2001/01/04 16:22:18 brianp Exp $ */
+/* $Id: light.c,v 1.34 2001/01/13 05:48:25 keithw Exp $ */
/*
* Mesa 3-D graphics library
@@ -1050,14 +1050,12 @@
struct gl_shine_tab *list = ctx->_ShineTabList;
struct gl_shine_tab *s;
-/* fprintf(stderr, "validate_shine_table %d, shininess %f\n", i, shininess); */
-
foreach(s, list)
if ( s->shininess == shininess )
break;
if (s == list) {
- GLint i;
+ GLint j;
GLfloat *m;
foreach(s, list)
@@ -1067,19 +1065,19 @@
m = s->tab;
m[0] = 0.0;
if (shininess == 0.0) {
- for (i = 1 ; i <= SHINE_TABLE_SIZE ; i++)
- m[i] = 1.0;
+ for (j = 1 ; j <= SHINE_TABLE_SIZE ; j++)
+ m[j] = 1.0;
}
else {
- for (i = 1 ; i < SHINE_TABLE_SIZE ; i++) {
- GLdouble t, x = i / (GLfloat) (SHINE_TABLE_SIZE - 1);
+ for (j = 1 ; j < SHINE_TABLE_SIZE ; j++) {
+ GLdouble t, x = j / (GLfloat) (SHINE_TABLE_SIZE - 1);
if (x < 0.005) /* underflow check */
x = 0.005;
t = pow(x, shininess);
if (t > 1e-20)
- m[i] = t;
+ m[j] = t;
else
- m[i] = 0.0;
+ m[j] = 0.0;
}
m[SHINE_TABLE_SIZE] = 1.0;
}
diff --git a/src/mesa/main/lines.c b/src/mesa/main/lines.c
index 730e3f5..8a9256c 100644
--- a/src/mesa/main/lines.c
+++ b/src/mesa/main/lines.c
@@ -1,4 +1,4 @@
-/* $Id: lines.c,v 1.25 2001/01/08 04:09:41 keithw Exp $ */
+/* $Id: lines.c,v 1.26 2001/01/13 05:48:25 keithw Exp $ */
/*
* Mesa 3-D graphics library
@@ -79,12 +79,14 @@
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END(ctx);
- if (ctx->Line.StippleFactor == CLAMP( factor, 1, 256 ) &&
+ factor = CLAMP( factor, 1, 256 );
+
+ if (ctx->Line.StippleFactor == factor &&
ctx->Line.StipplePattern == pattern)
return;
FLUSH_VERTICES(ctx, _NEW_LINE);
- ctx->Line.StippleFactor = CLAMP( factor, 1, 256 );
+ ctx->Line.StippleFactor = factor;
ctx->Line.StipplePattern = pattern;
if (ctx->Driver.LineStipple)
diff --git a/src/mesa/math/m_clip_tmp.h b/src/mesa/math/m_clip_tmp.h
index d977698..8757154 100644
--- a/src/mesa/math/m_clip_tmp.h
+++ b/src/mesa/math/m_clip_tmp.h
@@ -1,4 +1,4 @@
-/* $Id: m_clip_tmp.h,v 1.2 2000/12/26 05:09:31 keithw Exp $ */
+/* $Id: m_clip_tmp.h,v 1.3 2001/01/13 05:48:25 keithw Exp $ */
/*
* Mesa 3-D graphics library
@@ -100,6 +100,59 @@
return proj_vec;
}
+
+
+static GLvector4f * _XFORMAPI TAG(cliptest_np_points4)( GLvector4f *clip_vec,
+ GLvector4f *proj_vec,
+ GLubyte clipMask[],
+ GLubyte *orMask,
+ GLubyte *andMask )
+{
+ const GLuint stride = clip_vec->stride;
+ const GLfloat *from = (GLfloat *)clip_vec->start;
+ const GLuint count = clip_vec->count;
+ GLuint c = 0;
+ GLubyte tmpAndMask = *andMask;
+ GLubyte tmpOrMask = *orMask;
+ GLuint i;
+ STRIDE_LOOP {
+ const GLfloat cx = from[0];
+ const GLfloat cy = from[1];
+ const GLfloat cz = from[2];
+ const GLfloat cw = from[3];
+#if defined(macintosh)
+ /* on powerpc cliptest is 17% faster in this way. */
+ GLuint mask;
+ mask = (((cw < cx) << CLIP_RIGHT_SHIFT));
+ mask |= (((cw < -cx) << CLIP_LEFT_SHIFT));
+ mask |= (((cw < cy) << CLIP_TOP_SHIFT));
+ mask |= (((cw < -cy) << CLIP_BOTTOM_SHIFT));
+ mask |= (((cw < cz) << CLIP_FAR_SHIFT));
+ mask |= (((cw < -cz) << CLIP_NEAR_SHIFT));
+#else /* !defined(macintosh)) */
+ GLubyte mask = 0;
+ if (-cx + cw < 0) mask |= CLIP_RIGHT_BIT;
+ if ( cx + cw < 0) mask |= CLIP_LEFT_BIT;
+ if (-cy + cw < 0) mask |= CLIP_TOP_BIT;
+ if ( cy + cw < 0) mask |= CLIP_BOTTOM_BIT;
+ if (-cz + cw < 0) mask |= CLIP_FAR_BIT;
+ if ( cz + cw < 0) mask |= CLIP_NEAR_BIT;
+#endif /* defined(macintosh) */
+
+ clipMask[i] = mask;
+ if (mask) {
+ c++;
+ tmpAndMask &= mask;
+ tmpOrMask |= mask;
+ }
+ }
+
+ *orMask = tmpOrMask;
+ *andMask = (GLubyte) (c < count ? 0 : tmpAndMask);
+ return clip_vec;
+}
+
+
static GLvector4f * _XFORMAPI TAG(cliptest_points3)( GLvector4f *clip_vec,
GLvector4f *proj_vec,
GLubyte clipMask[],
@@ -132,6 +185,7 @@
return clip_vec;
}
+
static GLvector4f * _XFORMAPI TAG(cliptest_points2)( GLvector4f *clip_vec,
GLvector4f *proj_vec,
GLubyte clipMask[],
@@ -168,4 +222,8 @@
gl_clip_tab[4] = TAG(cliptest_points4);
gl_clip_tab[3] = TAG(cliptest_points3);
gl_clip_tab[2] = TAG(cliptest_points2);
+
+ gl_clip_np_tab[4] = TAG(cliptest_np_points4);
+ gl_clip_np_tab[3] = TAG(cliptest_points3);
+ gl_clip_np_tab[2] = TAG(cliptest_points2);
}
diff --git a/src/mesa/math/m_xform.c b/src/mesa/math/m_xform.c
index 77acce9..a510377 100644
--- a/src/mesa/math/m_xform.c
+++ b/src/mesa/math/m_xform.c
@@ -1,4 +1,4 @@
-/* $Id: m_xform.c,v 1.6 2001/01/08 04:09:41 keithw Exp $ */
+/* $Id: m_xform.c,v 1.7 2001/01/13 05:48:25 keithw Exp $ */
/*
* Mesa 3-D graphics library
@@ -57,6 +57,7 @@
#endif
clip_func gl_clip_tab[5];
+clip_func gl_clip_np_tab[5];
dotprod_func gl_dotprod_tab[2][5];
vec_copy_func gl_copy_tab[2][0x10];
normal_func gl_normal_tab[0xf][0x4];
diff --git a/src/mesa/math/m_xform.h b/src/mesa/math/m_xform.h
index 4024949..f6b10d6 100644
--- a/src/mesa/math/m_xform.h
+++ b/src/mesa/math/m_xform.h
@@ -1,4 +1,4 @@
-/* $Id: m_xform.h,v 1.4 2001/01/05 05:31:42 keithw Exp $ */
+/* $Id: m_xform.h,v 1.5 2001/01/13 05:48:25 keithw Exp $ */
/*
* Mesa 3-D graphics library
@@ -201,6 +201,7 @@
extern vec_copy_func gl_copy_tab[2][0x10];
extern vec_copy_func gl_copy_clean_tab[2][5];
extern clip_func gl_clip_tab[5];
+extern clip_func gl_clip_np_tab[5];
extern normal_func gl_normal_tab[0xf][0x4];
/* Use of 3 layers of linked 1-dimensional arrays to reduce
diff --git a/src/mesa/tnl/t_context.c b/src/mesa/tnl/t_context.c
index 93886b7..e0d254e 100644
--- a/src/mesa/tnl/t_context.c
+++ b/src/mesa/tnl/t_context.c
@@ -1,4 +1,4 @@
-/* $Id: t_context.c,v 1.9 2001/01/08 21:56:00 keithw Exp $ */
+/* $Id: t_context.c,v 1.10 2001/01/13 05:48:25 keithw Exp $ */
/*
* Mesa 3-D graphics library
@@ -104,6 +104,8 @@
_tnl_eval_init( ctx );
_tnl_install_pipeline( ctx, _tnl_default_pipeline );
+
+ tnl->NeedProjCoords = GL_TRUE;
/* Hook our functions into exec and compile dispatch tables.
*/
@@ -195,3 +197,13 @@
ctx->Save->Begin = _tnl_save_Begin;
}
+
+void
+_tnl_need_projected_coords( GLcontext *ctx, GLboolean mode )
+{
+ TNLcontext *tnl = TNL_CONTEXT(ctx);
+ if (tnl->NeedProjCoords != mode) {
+ tnl->NeedProjCoords = mode;
+ _tnl_InvalidateState( ctx, _NEW_PROJECTION );
+ }
+}
diff --git a/src/mesa/tnl/t_context.h b/src/mesa/tnl/t_context.h
index 8e3952a..d49c854 100644
--- a/src/mesa/tnl/t_context.h
+++ b/src/mesa/tnl/t_context.h
@@ -1,4 +1,4 @@
-/* $Id: t_context.h,v 1.9 2001/01/05 02:26:49 keithw Exp $ */
+/* $Id: t_context.h,v 1.10 2001/01/13 05:48:26 keithw Exp $ */
/*
* Mesa 3-D graphics library
@@ -412,6 +412,10 @@
GLuint DlistPrimitiveLength;
GLuint DlistLastPrimitive;
+ /* Probably need a better configuration mechanism:
+ */
+ GLboolean NeedProjCoords;
+
/* Derived state and storage for _tnl_eval_vb:
*/
struct tnl_eval_store eval;
diff --git a/src/mesa/tnl/t_imm_exec.c b/src/mesa/tnl/t_imm_exec.c
index e8904df..6feff84 100644
--- a/src/mesa/tnl/t_imm_exec.c
+++ b/src/mesa/tnl/t_imm_exec.c
@@ -1,4 +1,4 @@
-/* $Id: t_imm_exec.c,v 1.6 2001/01/08 21:56:00 keithw Exp $ */
+/* $Id: t_imm_exec.c,v 1.7 2001/01/13 05:48:26 keithw Exp $ */
/*
* Mesa 3-D graphics library
@@ -357,16 +357,21 @@
*/
void _tnl_run_empty_cassette( GLcontext *ctx, struct immediate *IM )
{
- GLuint start = IM->CopyStart;
-
copy_to_current( ctx, IM, IM->OrFlag );
- if (IM->OrFlag & VERT_MATERIAL)
- gl_update_material( ctx, IM->Material[start], IM->MaterialMask[start] );
+ if (IM->OrFlag & (VERT_RGBA|VERT_MATERIAL)) {
+ GLuint start = IM->CopyStart;
- if (IM->OrFlag & VERT_RGBA)
- if (ctx->Light.ColorMaterialEnabled)
- gl_update_color_material( ctx, ctx->Current.Color );
+ if (IM->OrFlag & VERT_MATERIAL)
+ gl_update_material( ctx, IM->Material[start],
+ IM->MaterialMask[start] );
+
+ if (IM->OrFlag & VERT_RGBA)
+ if (ctx->Light.ColorMaterialEnabled)
+ gl_update_color_material( ctx, ctx->Current.Color );
+
+ gl_validate_all_lighting_tables( ctx );
+ }
}
diff --git a/src/mesa/tnl/t_vb_cliptmp.h b/src/mesa/tnl/t_vb_cliptmp.h
index 5957f49..56f2031 100644
--- a/src/mesa/tnl/t_vb_cliptmp.h
+++ b/src/mesa/tnl/t_vb_cliptmp.h
@@ -1,4 +1,4 @@
-/* $Id: t_vb_cliptmp.h,v 1.5 2001/01/05 02:26:49 keithw Exp $ */
+/* $Id: t_vb_cliptmp.h,v 1.6 2001/01/13 05:48:26 keithw Exp $ */
/*
* Mesa 3-D graphics library
@@ -115,29 +115,32 @@
} while (0)
-/* Project if necessary.
- */
static void TAG(build_proj_verts)( GLcontext *ctx )
{
struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
- GLfloat (*coord)[4] = VB->ClipPtr->data;
- GLfloat (*proj)[4] = VB->ProjectedClipPtr->data;
- GLuint last = VB->LastClipped;
- GLuint i;
- for (i = VB->FirstClipped; i < last; i++) {
- if (VB->ClipMask[i] == 0) {
- if (SIZE == 4 && W(i) != 0.0F) {
- GLfloat wInv = 1.0F / W(i);
- proj[i][0] = X(i) * wInv;
- proj[i][1] = Y(i) * wInv;
- proj[i][2] = Z(i) * wInv;
- proj[i][3] = wInv;
- } else {
- proj[i][0] = X(i);
- proj[i][1] = Y(i);
- proj[i][2] = Z(i);
- proj[i][3] = W(i);
+ /* Project if necessary.
+ */
+ if (VB->ProjectedClipPtr) {
+ GLfloat (*coord)[4] = VB->ClipPtr->data;
+ GLfloat (*proj)[4] = VB->ProjectedClipPtr->data;
+ GLuint last = VB->LastClipped;
+ GLuint i;
+
+ for (i = VB->FirstClipped; i < last; i++) {
+ if (VB->ClipMask[i] == 0) {
+ if (SIZE == 4 && W(i) != 0.0F) {
+ GLfloat wInv = 1.0F / W(i);
+ proj[i][0] = X(i) * wInv;
+ proj[i][1] = Y(i) * wInv;
+ proj[i][2] = Z(i) * wInv;
+ proj[i][3] = wInv;
+ } else {
+ proj[i][0] = X(i);
+ proj[i][1] = Y(i);
+ proj[i][2] = Z(i);
+ proj[i][3] = W(i);
+ }
}
}
}
diff --git a/src/mesa/tnl/t_vb_vertex.c b/src/mesa/tnl/t_vb_vertex.c
index 7667d42..0c163ee 100644
--- a/src/mesa/tnl/t_vb_vertex.c
+++ b/src/mesa/tnl/t_vb_vertex.c
@@ -1,4 +1,4 @@
-/* $Id: t_vb_vertex.c,v 1.1 2000/12/26 05:09:33 keithw Exp $ */
+/* $Id: t_vb_vertex.c,v 1.2 2001/01/13 05:48:26 keithw Exp $ */
/*
* Mesa 3-D graphics library
@@ -134,7 +134,8 @@
struct gl_pipeline_stage *stage )
{
struct vertex_stage_data *store = (struct vertex_stage_data *)stage->private;
- struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
+ TNLcontext *tnl = TNL_CONTEXT(ctx);
+ struct vertex_buffer *VB = &tnl->vb;
if (stage->changed_inputs)
{
@@ -172,12 +173,36 @@
store->ormask = 0;
store->andmask = CLIP_ALL_BITS;
- VB->ProjectedClipPtr =
- gl_clip_tab[VB->ClipPtr->size]( VB->ClipPtr,
- &store->proj,
- store->clipmask,
- &store->ormask,
- &store->andmask );
+ if (tnl->NeedProjCoords) {
+ VB->ProjectedClipPtr =
+ gl_clip_tab[VB->ClipPtr->size]( VB->ClipPtr,
+ &store->proj,
+ store->clipmask,
+ &store->ormask,
+ &store->andmask );
+
+ /* Drivers expect this to be size 4...
+ */
+ if (VB->ProjectedClipPtr->size < 4) {
+ ASSERT(VB->ProjectedClipPtr == VB->ClipPtr);
+ if (VB->ProjectedClipPtr->flags & VEC_NOT_WRITEABLE) {
+ ASSERT(VB->ProjectedClipPtr == VB->ObjPtr);
+ VB->import_data( ctx, VERT_OBJ, VEC_NOT_WRITEABLE );
+ VB->ProjectedClipPtr = VB->ClipPtr = VB->ObjPtr;
+ }
+ if (VB->ClipPtr->size == 2)
+ gl_vector4f_clean_elem( VB->ClipPtr, VB->Count, 2 );
+ gl_vector4f_clean_elem( VB->ClipPtr, VB->Count, 3 );
+ VB->ClipPtr->size = 4;
+ }
+ } else {
+ VB->ProjectedClipPtr = 0;
+ gl_clip_np_tab[VB->ClipPtr->size]( VB->ClipPtr,
+ 0,
+ store->clipmask,
+ &store->ormask,
+ &store->andmask );
+ }
if (store->andmask)
return GL_FALSE;
@@ -203,21 +228,6 @@
if (VB->ClipPtr == VB->ObjPtr && (VB->importable_data & VERT_OBJ))
VB->importable_data |= VERT_CLIP;
- /* Drivers expect this to be size 4...
- */
- if (VB->ProjectedClipPtr->size < 4) {
- ASSERT(VB->ProjectedClipPtr == VB->ClipPtr);
- if (VB->ProjectedClipPtr->flags & VEC_NOT_WRITEABLE) {
- ASSERT(VB->ProjectedClipPtr == VB->ObjPtr);
- VB->import_data( ctx, VERT_OBJ, VEC_NOT_WRITEABLE );
- VB->ProjectedClipPtr = VB->ClipPtr = VB->ObjPtr;
- }
- if (VB->ClipPtr->size == 2)
- gl_vector4f_clean_elem( VB->ClipPtr, VB->Count, 2 );
- gl_vector4f_clean_elem( VB->ClipPtr, VB->Count, 3 );
- VB->ClipPtr->size = 4;
- }
-
store->save_eyeptr = VB->EyePtr;
store->save_clipptr = VB->ClipPtr;
store->save_projptr = VB->ProjectedClipPtr;
diff --git a/src/mesa/tnl/tnl.h b/src/mesa/tnl/tnl.h
index f95ce0e..eb8e905 100644
--- a/src/mesa/tnl/tnl.h
+++ b/src/mesa/tnl/tnl.h
@@ -59,17 +59,7 @@
extern void
_tnl_wakeup_save_exec( GLcontext *ctx );
-
-/* Functions to assist driver t&l modules which have to fallback to
- * this module in the middle of a begin/end pair. Use this instead of
- * glBegin() to identify the primitive as wrapped:
- *
- * Even with this it's difficult to see how the drivers are going to
- * replay any glMaterial commands received in the few vertices before
- * the fallback.
- */
extern void
-_tnl_fallback_begin( GLcontext *ctx, GLenum mode );
-
+_tnl_need_projected_coords( GLcontext *ctx, GLboolean flag );
#endif
diff --git a/src/mesa/x86/x86.c b/src/mesa/x86/x86.c
index fd8a224..b49965f 100644
--- a/src/mesa/x86/x86.c
+++ b/src/mesa/x86/x86.c
@@ -1,4 +1,4 @@
-/* $Id: x86.c,v 1.14 2000/12/27 19:57:37 keithw Exp $ */
+/* $Id: x86.c,v 1.15 2001/01/13 05:48:25 keithw Exp $ */
/*
* Mesa 3-D graphics library
@@ -93,6 +93,13 @@
GLubyte *andMask );
+extern GLvector4f * _ASMAPI gl_x86_cliptest_points4_np( GLvector4f *clip_vec,
+ GLvector4f *proj_vec,
+ GLubyte clipMask[],
+ GLubyte *orMask,
+ GLubyte *andMask );
+
+
extern void _ASMAPI gl_v16_x86_cliptest_points4( GLfloat *first_vert,
GLfloat *last_vert,
GLubyte *or_mask,
@@ -121,6 +128,7 @@
/* XXX this function has been found to cause FP overflow exceptions */
gl_clip_tab[4] = gl_x86_cliptest_points4;
+ gl_clip_np_tab[4] = gl_x86_cliptest_points4_np;
#ifdef DEBUG
gl_test_all_transform_functions( "x86" );
diff --git a/src/mesa/x86/x86_cliptest.S b/src/mesa/x86/x86_cliptest.S
index 0258a9b..8679bcb 100644
--- a/src/mesa/x86/x86_cliptest.S
+++ b/src/mesa/x86/x86_cliptest.S
@@ -1,4 +1,4 @@
-/* $Id: x86_cliptest.S,v 1.3 2000/12/26 05:09:31 keithw Exp $ */
+/* $Id: x86_cliptest.S,v 1.4 2001/01/13 05:48:25 keithw Exp $ */
/*
* Mesa 3-D graphics library
@@ -246,3 +246,163 @@
POP_L( ESI )
RET
+
+
+
+
+
+
+
+ALIGNTEXT16
+GLOBL GLNAME( gl_x86_cliptest_points4_np )
+GLNAME( gl_x86_cliptest_points4_np ):
+
+#ifdef ELFPIC
+#define FRAME_OFFSET 20
+#else
+#define FRAME_OFFSET 16
+#endif
+ PUSH_L( ESI )
+ PUSH_L( EDI )
+ PUSH_L( EBP )
+ PUSH_L( EBX )
+
+#ifdef ELFPIC
+ /* store pointer to clip_table on stack */
+ CALL( LLBL( ctp4_np_get_eip ) )
+ ADD_L( CONST(_GLOBAL_OFFSET_TABLE_), EBX )
+ MOV_L( REGOFF(clip_table@GOT, EBX), EBX )
+ PUSH_L( EBX )
+ JMP( LLBL( ctp4_np_clip_table_ready ) )
+
+LLBL( ctp4_np_get_eip ):
+ /* store eip in ebx */
+ MOV_L( REGIND(ESP), EBX )
+ RET
+
+LLBL( ctp4_np_clip_table_ready ):
+#endif
+
+ MOV_L( ARG_SOURCE, ESI )
+ /* slot */
+
+ MOV_L( ARG_CLIP, EDX )
+ MOV_L( ARG_OR, EBX )
+
+ MOV_L( ARG_AND, EBP )
+ MOV_L( REGOFF(V4F_STRIDE, ESI), EAX )
+
+ MOV_L( REGOFF(V4F_COUNT, ESI), ECX )
+ MOV_L( REGOFF(V4F_START, ESI), ESI )
+
+ MOV_L( EAX, ARG_DEST ) /* put stride in ARG_DEST */
+ ADD_L( EDX, ECX )
+
+ MOV_L( ECX, EDI ) /* put clipmask + count in EDI */
+ CMP_L( ECX, EDX )
+
+ MOV_B( REGIND(EBX), AL )
+ MOV_B( REGIND(EBP), AH )
+
+ JZ( LLBL( ctp4_np_finish ) )
+
+ALIGNTEXT16
+LLBL( ctp4_np_top ):
+
+ MOV_L( SRC(3), EBP )
+ MOV_L( SRC(2), EBX )
+
+ XOR_L( ECX, ECX )
+ ADD_L( EBP, EBP ) /* ebp = abs(S(3))*2 ; carry = sign of S(3) */
+
+ ADC_L( ECX, ECX )
+ ADD_L( EBX, EBX ) /* ebx = abs(S(2))*2 ; carry = sign of S(2) */
+
+ ADC_L( ECX, ECX )
+ CMP_L( EBX, EBP ) /* carry = abs(S(2))*2 > abs(S(3))*2 */
+
+ ADC_L( ECX, ECX )
+ MOV_L( SRC(1), EBX )
+
+ ADD_L( EBX, EBX ) /* ebx = abs(S(1))*2 ; carry = sign of S(1) */
+
+ ADC_L( ECX, ECX )
+ CMP_L( EBX, EBP ) /* carry = abs(S(1))*2 > abs(S(3))*2 */
+
+ ADC_L( ECX, ECX )
+ MOV_L( SRC(0), EBX )
+
+ ADD_L( EBX, EBX ) /* ebx = abs(S(0))*2 ; carry = sign of S(0) */
+
+ ADC_L( ECX, ECX )
+ CMP_L( EBX, EBP ) /* carry = abs(S(0))*2 > abs(S(3))*2 */
+
+ ADC_L( ECX, ECX )
+
+#ifdef ELFPIC
+ MOV_L( REGIND(ESP), EBP ) /* clip_table */
+
+ MOV_B( REGBI(EBP, ECX), CL )
+#else
+ MOV_B( REGOFF(clip_table,ECX), CL )
+#endif
+
+ OR_B( CL, AL )
+ AND_B( CL, AH )
+
+ TEST_B( CL, CL )
+ MOV_B( CL, REGIND(EDX) )
+
+ INC_L( EDX )
+ /* slot */
+
+ ADD_L( ARG_DEST, ESI )
+ CMP_L( EDX, EDI )
+
+ JNZ( LLBL( ctp4_np_top ) )
+
+ MOV_L( ARG_OR, ECX )
+ MOV_L( ARG_AND, EDX )
+
+ MOV_B( AL, REGIND(ECX) )
+ MOV_B( AH, REGIND(EDX) )
+
+LLBL( ctp4_np_finish ):
+
+ MOV_L( ARG_SOURCE, EAX )
+#ifdef ELFPIC
+ POP_L( ESI ) /* discard ptr to clip_table */
+#endif
+ POP_L( EBX )
+ POP_L( EBP )
+ POP_L( EDI )
+ POP_L( ESI )
+
+ RET
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file