From 6fb0c7a7a53e1eba7a0f5dc5b1ade312a0d76119 Mon Sep 17 00:00:00 2001
From: Toad King
Date: Thu, 14 Jun 2012 03:21:06 -0400
Subject: initial pocketsnes commit

---
 src/tile16_t.h | 519 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 519 insertions(+)
 create mode 100644 src/tile16_t.h

(limited to 'src/tile16_t.h')

diff --git a/src/tile16_t.h b/src/tile16_t.h
new file mode 100644
index 0000000..db1916e
--- /dev/null
+++ b/src/tile16_t.h
@@ -0,0 +1,519 @@
+/*
+ Templates for
+
+ DrawTile16
+ DrawClippedTile16
+*/
+
+#include "snes9x.h"
+#include "memmap.h"
+#include "ppu.h"
+#include "display.h"
+#include "gfx.h"
+#include "tile16.h"
+
+#define MACRO_CONCAT(a,b) a##b
+#define DEC_DRAW(n) MACRO_CONCAT(void DrawTile16, n)(uint32 Tile, uint32 Offset, uint32 StartLine, uint32 LineCount)
+#define DEC_DRAWCLIPPED(n) MACRO_CONCAT(void DrawClippedTile16, n)(uint32 Tile, uint32 Offset, uint32 StartPixel, uint32 Width,	uint32 StartLine, uint32 LineCount)
+
+#ifdef __FAST_OBJS__
+
+#define DEC_DRAWNOZ(n) MACRO_CONCAT(void DrawNoZTile16, n)(uint32 Tile, uint32 Offset, uint32 StartLine, uint32 LineCount)
+
+#define ROW(width) \
+			"	mov	r10, " width "			\n" \
+			"7:\n" \
+			"	ldrb	r9, [%[bp]], #1			\n"\
+			"	add	%[depth], %[depth], #1		\n"\
+			"	movs	r9, r9, lsl #2			\n"\
+			"	beq	3f				\n"\
+										\
+			"	ldrb	r8, [%[subdepth], %[depth]]	\n"\
+			"	ldr	r9, [%[colors], r9]		\n"\
+			"	strb	%[gfx_z2], [%[depth], #(-1)]	\n"\
+										\
+			"	cmp	r8, #1				\n"\
+			"	blo	4f				\n"\
+			"	ldrneh	r8, [%[screen], %[delta]]	\n"\
+			"	moveq	r8, %[fixedcolour]		\n"\
+			ROP \
+			"4:						\n"\
+			"	strh	r9, [%[screen]] 	\n"\
+										\
+			"3:						\n"\
+			"	subs	r10, r10, #1			\n"\
+			"	add	%[screen], %[screen], #2	\n"\
+			"	bne	7b				\n"
+
+#define ROW1(width)	\
+			"	mov	r10, " width "			\n" \
+			"7:\n" \
+			"	ldrb	r9, [%[bp]], #-1		\n"\
+			"	add	%[depth], %[depth], #1		\n"\
+			"	movs	r9, r9, lsl #2			\n"\
+			"	beq	3f				\n"\
+										\
+			"	ldrb	r8, [%[subdepth], %[depth]]	\n"\
+			"	ldr	r9, [%[colors], r9]		\n"\
+			"	strb	%[gfx_z2], [%[depth], #(-1)]	\n"\
+										\
+			"	cmp	r8, #1				\n"\
+			"	blo	4f				\n"\
+			"	ldrneh	r8, [%[screen], %[delta]]	\n"\
+			"	moveq	r8, %[fixedcolour]		\n"\
+			ROP \
+			"4:						\n"\
+			"	strh	r9, [%[screen]]		 	\n"\
+										\
+			"3:						\n"\
+			"	subs	r10, r10, #1			\n"\
+			"	add	%[screen], %[screen], #2	\n"\
+			"	bne	7b				\n"
+
+
+
+
+// DrawNoZTile16 -----------------------------------------
+DEC_DRAWNOZ(ROPNAME)
+{
+     TILE_PREAMBLE 
+
+  if (Tile & V_FLIP){
+    if (!(Tile & H_FLIP)){
+		asm volatile (
+		"2:					\n"
+
+		ROW("#8")
+
+		"	sub	%[bp], %[bp], #(8+8)		\n"	
+		"	add	%[screen], %[screen], #(640-16)	\n" 
+		"	add	%[depth], %[depth], #(320-8)	\n"
+		"	subs 	%[lcount], %[lcount], #1	\n"
+		"	bne	2b"
+		// output
+		: [lcount] "+r" (LineCount)
+		// input
+		: [gfx_z1] "r" (GFX.Z1),
+		  [gfx_z2] "r" (GFX.Z2),
+		  [colors] "r" (GFX.ScreenColors),
+		  [delta] "r" (GFX.Delta << 1),
+		  [fixedcolour] "r" (GFX.FixedColour),
+		  [screen] "r" ((uint16 *) GFX.S + Offset),
+		  [depth] "r" (GFX.ZBuffer + Offset),
+		  [subdepth] "r" (GFX.DepthDelta - 1),
+ 		  [bp] "r" (pCache + 56 - StartLine)
+		// clobbered
+		: "r8", "r9", "r10", "cc" 				
+		);
+	} else {
+		asm volatile (
+		"2:						\n"
+		ROW1("#8")
+
+		"	add	%[screen], %[screen], #(640-16)	\n" 
+		"	add	%[depth], %[depth], #(320-8)	\n"
+		"	subs 	%[lcount], %[lcount], #1	\n"
+		"	bne	2b"
+		// output
+		: [lcount] "+r" (LineCount)
+		// input
+		: [gfx_z1] "r" (GFX.Z1),
+		  [gfx_z2] "r" (GFX.Z2),
+		  [colors] "r" (GFX.ScreenColors),
+		  [delta] "r" (GFX.Delta << 1),
+		  [fixedcolour] "r" (GFX.FixedColour),
+		  [screen] "r" ((uint16 *) GFX.S + Offset),
+		  [depth] "r" (GFX.ZBuffer + Offset),
+		  [subdepth] "r" (GFX.DepthDelta - 1),
+		  [bp] "r" (pCache + 56 - StartLine + 7)
+		// clobbered
+		: "r8", "r9", "r10", "cc" 				
+		);
+	}
+} else {
+    if (!(Tile & H_FLIP)){
+		asm volatile (
+		"2:					\n"
+		ROW("#8")
+
+		"	add	%[screen], %[screen], #(640-16)	\n" 
+		"	add	%[depth], %[depth], #(320-8)	\n"
+		"	subs 	%[lcount], %[lcount], #1	\n"
+		"	bne	2b"
+		// output
+		: [lcount] "+r" (LineCount)
+		// input
+		: [gfx_z1] "r" (GFX.Z1),
+		  [gfx_z2] "r" (GFX.Z2),
+		  [colors] "r" (GFX.ScreenColors),
+		  [delta] "r" (GFX.Delta << 1),
+		  [fixedcolour] "r" (GFX.FixedColour),
+		  [screen] "r" ((uint16 *) GFX.S + Offset),
+		  [depth] "r" (GFX.ZBuffer + Offset),
+		  [subdepth] "r" (GFX.DepthDelta - 1),
+		  [bp] "r" (pCache + StartLine)
+		// clobbered
+		: "r8", "r9", "r10", "cc" 				
+		);
+	} else {
+		asm volatile (
+		"2:						\n"
+		ROW1("#8")
+
+		"	add	%[bp], %[bp], #(8+8)		\n"	
+		"	add	%[screen], %[screen], #(640-16)	\n" 
+		"	add	%[depth], %[depth], #(320-8)	\n"
+		"	subs 	%[lcount], %[lcount], #1	\n"
+		"	bne	2b"
+
+		// output
+		: [lcount] "+r" (LineCount)
+		// input
+		: [gfx_z1] "r" (GFX.Z1),
+		  [gfx_z2] "r" (GFX.Z2),
+		  [colors] "r" (GFX.ScreenColors),
+		  [delta] "r" (GFX.Delta << 1),
+		  [fixedcolour] "r" (GFX.FixedColour),
+		  [screen] "r" ((uint16 *) GFX.S + Offset),
+		  [depth] "r" (GFX.ZBuffer + Offset),
+		  [subdepth] "r" (GFX.DepthDelta - 1),
+		  [bp] "r" (pCache + StartLine + 7)
+		// clobbered
+		: "r8", "r9", "r10", "cc" 				
+		);
+
+	}
+   }
+}
+
+#undef ROW
+#undef ROW1
+
+#endif // #ifdef __FAST_OBJS__
+
+
+#define ROW(width) \
+			"	ldrb	r8, [%[depth]], #1		\n"\
+			"	mov	r10, " width "			\n" \
+			"7:\n" \
+			\
+			"	cmp	%[gfx_z1], r8			\n"\
+			"	ldrhib	r9, [%[bp]]		\n"\
+			"	bls	3f				\n"\
+										\
+			"	movs	r9, r9, lsl #2			\n"\
+			"	beq	3f				\n"\
+										\
+			"	ldrb	r8, [%[subdepth], %[depth]]	\n"\
+			"	ldr	r9, [%[colors], r9]		\n"\
+			"	strb	%[gfx_z2], [%[depth], #(-1)]	\n"\
+										\
+			"	cmp	r8, #1				\n"\
+			"	blo	4f				\n"\
+			"	ldrneh	r8, [%[screen], %[delta]]	\n"\
+			"	moveq	r8, %[fixedcolour]		\n"\
+										\
+			ROP \
+			"4:						\n"\
+			"	strh	r9, [%[screen]] 	\n"\
+										\
+			"3:						\n"\
+			\
+			"	subs	r10, r10, #1			\n"\
+			"	add	%[bp], %[bp], #1		\n"\
+			"	add	%[screen], %[screen], #2	\n"\
+			"	ldrneb	r8, [%[depth]], #1		\n"\
+			"	bne	7b				\n"
+
+#define ROW1(width)	\
+			"	ldrb	r8, [%[depth]], #1		\n"\
+			"	mov	r10, " width "			\n" \
+			"7:\n" \
+			\
+			"	cmp	%[gfx_z1], r8			\n"\
+			"	ldrhib	r9, [%[bp]]			\n"\
+			"	bls	3f				\n"\
+										\
+			"	movs	r9, r9, lsl #2			\n"\
+			"	beq	3f				\n"\
+										\
+			"	ldrb	r8, [%[subdepth], %[depth]]	\n"\
+			"	ldr	r9, [%[colors], r9]		\n"\
+			"	strb	%[gfx_z2], [%[depth], #(-1)]	\n"\
+										\
+			"	cmp	r8, #1				\n"\
+			"	blo	4f				\n"\
+			"	ldrneh	r8, [%[screen], %[delta]]	\n"\
+			"	moveq	r8, %[fixedcolour]		\n"\
+										\
+			ROP \
+			"4:						\n"\
+			"	strh	r9, [%[screen]]		 	\n"\
+										\
+			"3:						\n"\
+			\
+			"	subs	r10, r10, #1			\n"\
+			"	sub	%[bp], %[bp], #1  		\n"\
+			"	add	%[screen], %[screen], #2	\n"\
+			"	ldrneb	r8, [%[depth]], #1		\n"\
+			"	bne	7b				\n"
+
+
+// DrawTile16 -----------------------------------------
+DEC_DRAW(ROPNAME)
+{
+     TILE_PREAMBLE 
+
+  if (Tile & V_FLIP){
+    if (!(Tile & H_FLIP)){
+		asm volatile (
+		"2:					\n"
+
+		ROW("#8")
+
+		"	sub	%[bp], %[bp], #(8+8)		\n"	
+		"	add	%[screen], %[screen], #(640-16)	\n" 
+		"	add	%[depth], %[depth], #(320-8)	\n"
+		"	subs 	%[lcount], %[lcount], #1	\n"
+		"	bne	2b"
+		// output
+		: [lcount] "+r" (LineCount)
+		// input
+		: [gfx_z1] "r" (GFX.Z1),
+		  [gfx_z2] "r" (GFX.Z2),
+		  [colors] "r" (GFX.ScreenColors),
+		  [delta] "r" (GFX.Delta << 1),
+		  [fixedcolour] "r" (GFX.FixedColour),
+		  [screen] "r" ((uint16 *) GFX.S + Offset),
+		  [depth] "r" (GFX.ZBuffer + Offset),
+		  [subdepth] "r" (GFX.DepthDelta - 1),
+ 		  [bp] "r" (pCache + 56 - StartLine)
+		// clobbered
+		: "r8", "r9", "r10", "cc" 				
+		);
+	} else {
+		asm volatile (
+		"2:						\n"
+		ROW1("#8")
+
+		"	add	%[screen], %[screen], #(640-16)	\n" 
+		"	add	%[depth], %[depth], #(320-8)	\n"
+		"	subs 	%[lcount], %[lcount], #1	\n"
+		"	bne	2b"
+		// output
+		: [lcount] "+r" (LineCount)
+		// input
+		: [gfx_z1] "r" (GFX.Z1),
+		  [gfx_z2] "r" (GFX.Z2),
+		  [colors] "r" (GFX.ScreenColors),
+		  [delta] "r" (GFX.Delta << 1),
+		  [fixedcolour] "r" (GFX.FixedColour),
+		  [screen] "r" ((uint16 *) GFX.S + Offset),
+		  [depth] "r" (GFX.ZBuffer + Offset),
+		  [subdepth] "r" (GFX.DepthDelta - 1),
+		  [bp] "r" (pCache + 56 - StartLine + 7)
+		// clobbered
+		: "r8", "r9", "r10", "cc" 				
+		);
+	}
+} else {
+    if (!(Tile & H_FLIP)){
+		asm volatile (
+		"2:					\n"
+		ROW("#8")
+
+		"	add	%[screen], %[screen], #(640-16)	\n" 
+		"	add	%[depth], %[depth], #(320-8)	\n"
+		"	subs 	%[lcount], %[lcount], #1	\n"
+		"	bne	2b"
+		// output
+		: [lcount] "+r" (LineCount)
+		// input
+		: [gfx_z1] "r" (GFX.Z1),
+		  [gfx_z2] "r" (GFX.Z2),
+		  [colors] "r" (GFX.ScreenColors),
+		  [delta] "r" (GFX.Delta << 1),
+		  [fixedcolour] "r" (GFX.FixedColour),
+		  [screen] "r" ((uint16 *) GFX.S + Offset),
+		  [depth] "r" (GFX.ZBuffer + Offset),
+		  [subdepth] "r" (GFX.DepthDelta - 1),
+		  [bp] "r" (pCache + StartLine)
+		// clobbered
+		: "r8", "r9", "r10", "cc" 				
+		);
+	} else {
+		asm volatile (
+		"2:						\n"
+		ROW1("#8")
+
+		"	add	%[bp], %[bp], #(8+8)		\n"	
+		"	add	%[screen], %[screen], #(640-16)	\n" 
+		"	add	%[depth], %[depth], #(320-8)	\n"
+		"	subs 	%[lcount], %[lcount], #1	\n"
+		"	bne	2b"
+
+		// output
+		: [lcount] "+r" (LineCount)
+		// input
+		: [gfx_z1] "r" (GFX.Z1),
+		  [gfx_z2] "r" (GFX.Z2),
+		  [colors] "r" (GFX.ScreenColors),
+		  [delta] "r" (GFX.Delta << 1),
+		  [fixedcolour] "r" (GFX.FixedColour),
+		  [screen] "r" ((uint16 *) GFX.S + Offset),
+		  [depth] "r" (GFX.ZBuffer + Offset),
+		  [subdepth] "r" (GFX.DepthDelta - 1),
+		  [bp] "r" (pCache + StartLine + 7)
+		// clobbered
+		: "r8", "r9", "r10", "cc" 				
+		);
+
+	}
+   }
+}
+
+// DrawClippedTile16 -----------------------------------------
+DEC_DRAWCLIPPED(ROPNAME)
+{
+if (Width == 0) return;
+
+     TILE_PREAMBLE 
+
+Offset = Offset + StartPixel;
+if (Tile & V_FLIP){
+    if (!(Tile & H_FLIP)){
+		asm volatile (
+		"2:					\n"
+
+		ROW("%[width]")
+
+		// Loop	
+		"1:						\n"	
+		"	sub	%[bp], %[bp], #8		\n"
+		"	add	%[screen], %[screen], #640	\n" 
+		"	add	%[depth], %[depth], #320	\n" 
+		// --
+		"	sub	%[bp], %[bp], %[width]		\n"
+		"	sub	%[screen], %[screen], %[width], lsl #1	\n"
+		"	sub	%[depth], %[depth], %[width]	\n"
+		// --
+		"	subs 	%[lcount], %[lcount], #1	\n"
+		"	bne	2b"
+		// output
+		: [lcount] "+r" (LineCount)	
+		// input
+		: [gfx_z1] "r" (GFX.Z1),
+		  [gfx_z2] "r" (GFX.Z2),
+		  [colors] "r" (GFX.ScreenColors),
+		  [delta] "r" (GFX.Delta << 1),
+		  [fixedcolour] "r" (GFX.FixedColour),
+		  [width] "r" (Width),
+		  [screen] "r" ((uint16 *) GFX.S + Offset),
+		  [depth] "r" (GFX.ZBuffer + Offset),
+		  [subdepth] "r" (GFX.DepthDelta - 1),
+		  [bp] "r" (pCache + 56 - StartLine + StartPixel)
+		// clobbered
+		: "r8", "r9", "r10", "cc" 				
+		);
+	} else {
+		asm volatile (
+		"2:					\n"
+		ROW1("%[width]")
+		// Loop	
+		"1:						\n"	
+		"	sub	%[bp], %[bp], #8		\n"	
+		"	add	%[screen], %[screen], #640	\n" 
+		"	add	%[depth], %[depth], #320	\n" 
+		// --
+		"	add	%[bp], %[bp], %[width]		\n"
+		"	sub	%[screen], %[screen], %[width], lsl #1	\n"
+		"	sub	%[depth], %[depth], %[width]	\n"
+		// --
+		"	subs 	%[lcount], %[lcount], #1	\n"
+		"	bne	2b"
+		// output
+		: [lcount] "+r" (LineCount)
+		// input
+		: [gfx_z1] "r" (GFX.Z1),
+		  [gfx_z2] "r" (GFX.Z2),
+		  [colors] "r" (GFX.ScreenColors),
+		  [delta] "r" (GFX.Delta << 1),
+		  [fixedcolour] "r" (GFX.FixedColour),
+		  [width] "r" (Width),
+		  [screen] "r" ((uint16 *) GFX.S + Offset),
+		  [depth] "r" (GFX.ZBuffer + Offset),
+		  [subdepth] "r" (GFX.DepthDelta - 1),
+		  [bp] "r" (pCache + 56 - StartLine - StartPixel + 7)
+		// clobbered
+		: "r8", "r9", "r10", "cc" 				
+		);
+	}
+} else {
+    if (!(Tile & H_FLIP)){
+		asm volatile (
+		"2:					\n"
+		ROW("%[width]")
+		// Loop	
+		"1:						\n"
+		"	add	%[bp], %[bp], #8		\n"	
+		"	add	%[screen], %[screen], #640	\n" 
+		"	add	%[depth], %[depth], #320	\n" 
+		// --
+		"	sub	%[bp], %[bp], %[width]		\n"
+		"	sub	%[screen], %[screen], %[width], lsl #1	\n"
+		"	sub	%[depth], %[depth], %[width]	\n"
+		// --
+		"	subs 	%[lcount], %[lcount], #1	\n"
+		"	bne	2b"
+		// output
+		: [lcount] "+r" (LineCount)
+		// input
+		: [gfx_z1] "r" (GFX.Z1),
+		  [gfx_z2] "r" (GFX.Z2),
+		  [colors] "r" (GFX.ScreenColors),
+		  [delta] "r" (GFX.Delta << 1),
+		  [fixedcolour] "r" (GFX.FixedColour),
+		  [width] "r" (Width),
+		  [screen] "r" ((uint16 *) GFX.S + Offset),
+		  [depth] "r" (GFX.ZBuffer + Offset),
+		  [subdepth] "r" (GFX.DepthDelta - 1),
+		  [bp] "r" (pCache + StartLine + StartPixel)	
+		// clobbered
+		: "r8", "r9", "r10", "cc" 				
+		);
+	} else {
+		asm volatile (
+		"2:					\n"
+		ROW1("%[width]")
+		// Loop	
+		"1:						\n"	
+		"	add	%[bp], %[bp], #8		\n"	
+		"	add	%[screen], %[screen], #640	\n" 
+		"	add	%[depth], %[depth], #320	\n" 
+		// --
+		"	add	%[bp], %[bp], %[width]		\n"
+		"	sub	%[screen], %[screen], %[width], lsl #1	\n"
+		"	sub	%[depth], %[depth], %[width]	\n"
+		// --		
+		"	subs 	%[lcount], %[lcount], #1	\n"
+		"	bne	2b"
+		// output
+		: [lcount] "+r" (LineCount)
+		// input
+		: [gfx_z1] "r" (GFX.Z1),
+		  [gfx_z2] "r" (GFX.Z2),
+		  [colors] "r" (GFX.ScreenColors),
+		  [delta] "r" (GFX.Delta << 1),
+		  [fixedcolour] "r" (GFX.FixedColour),
+		  [width] "r" (Width),
+		  [screen] "r" ((uint16 *) GFX.S + Offset),
+		  [depth] "r" (GFX.ZBuffer + Offset),
+		  [subdepth] "r" (GFX.DepthDelta - 1),
+		  [bp] "r" (pCache + StartLine - StartPixel + 7)
+		// clobbered
+		: "r8", "r9", "r10", "cc" 				
+		);
+
+	}
+   }
+}
-- 
cgit v1.2.3