From: sparky4 <sparky4@cock.li>
Date: Mon, 9 Jan 2017 18:12:47 +0000 (-0600)
Subject: added stuff to help me study 0.exe it is a complex program wwww what is getting to... 
X-Git-Url: http://4ch.mooo.com/gitweb/?a=commitdiff_plain;h=6cfcd9ddd5f8b515913ea6f0e0f84f8e4c0fb720;p=16.git

added stuff to help me study 0.exe it is a complex program wwww what is getting to me is the preservation of the bg and how it is done and where is it wwww
---

diff --git a/src/0.c b/src/0.c
index 47a0e29a..635a4f3e 100755
--- a/src/0.c
+++ b/src/0.c
@@ -10,7 +10,7 @@
 #define FILENAME_1 "data/spri/chikyuu.vrl"
 #define FILENAME_2 "data/spri/chikyuu.pal"
 
-//#define PATTERN
+#define PATTERN
 #define INITTNUM 1
 
 static unsigned char palette[768];
@@ -180,6 +180,8 @@ int main(int argc,char **argv)
 				player[0].q = 1; player[0].d = 2;
 				x=y=0;
 				xdir=ydir=1;
+				TESTBG;
+				DRAWCORNERBOXES;
 			} //R
 			FUNCTIONKEYFUNCTIONS0EXE;
 
diff --git a/src/lib/16_vl.c b/src/lib/16_vl.c
index 9369ce49..652ef89c 100755
--- a/src/lib/16_vl.c
+++ b/src/lib/16_vl.c
@@ -369,6 +369,37 @@ modexShowPage_(page_t *page)
 	outp(AC_INDEX, (page->dx & 0x03) << 1);
 }
 
+void
+modexShowPageVsync(page_t *page) {
+	word high_address, low_address, offset;
+	byte crtcOffset;
+
+	/* calculate offset */
+	offset = (word) page->data;
+	offset += page->dy * (page->width >> 2 );
+	offset += page->dx >> 2;
+
+	/* calculate crtcOffset according to virtual width */
+	crtcOffset = page->width >> 3;
+
+	high_address = HIGH_ADDRESS | (offset & 0xff00);
+	low_address  = LOW_ADDRESS  | (offset << 8);
+
+	/* wait for appropriate timing and then program CRTC */
+	while ((inp(INPUT_STATUS_1) & DISPLAY_ENABLE));
+	outpw(CRTC_INDEX, high_address);
+	outpw(CRTC_INDEX, low_address);
+	outp(CRTC_INDEX, 0x13);
+	outp(CRTC_DATA, crtcOffset);
+
+	/* wait for one retrace */
+	while (!(inp(INPUT_STATUS_1) & VRETRACE));
+
+	/* do PEL panning here */
+	outp(AC_INDEX, 0x33);
+	outp(AC_INDEX, (page->dx & 0x03) << 1);
+}
+
 void
 modexPanPage(page_t *page, int dx, int dy) {
 	page->dx = dx;
diff --git a/src/lib/16_vl.h b/src/lib/16_vl.h
index 2562f211..36f2069d 100755
--- a/src/lib/16_vl.h
+++ b/src/lib/16_vl.h
@@ -105,6 +105,7 @@ void modexCalcVmemRemain(video_t *video);
 void modexHiganbanaPageSetup(video_t *video);
 void modexShowPage(page_t *page);
 void modexShowPage_(page_t *page);
+void modexShowPageVsync(page_t *page);
 void modexPanPage(page_t *page, int dx, int dy);
 void modexSelectPlane(byte plane);
 void modexClearRegion(page_t *page, int x, int y, int w, int h, byte color);
diff --git a/src/lib/scroll16.c b/src/lib/scroll16.c
index e1221f8d..c30c8ac5 100755
--- a/src/lib/scroll16.c
+++ b/src/lib/scroll16.c
@@ -214,7 +214,7 @@ void walk(map_view_t *pip, player_t *player, word pn)
 }
 
 //panning page
-void panpagemanual(map_view_t *pip, player_t *player, word pn)
+void panPageManual(map_view_t *pip, player_t *player, word pn)
 {
 	switch(player[pn].d)
 	{
@@ -273,6 +273,66 @@ void panpagemanual(map_view_t *pip, player_t *player, word pn)
 	//if (player[pn].d!=2) printf("player[%u].d=%u player[%u].q=%u\n", pn, player[pn].d, pn, player[pn].q);
 }
 
+//panning vmem
+void panVmemManual(map_view_t *pip, player_t *player, word pn)
+{
+	switch(player[pn].d)
+	{
+		//right movement
+		case 3:
+			if(pip[pip[0].pan->pn].tx >= 0 && pip[pip[0].pan->pn].tx+pip[pip[0].pan->pn].page->tw < pip[pip[0].pan->pn].page->tilesw)
+			{
+				if(player[pn].q<=player[pn].spt)
+				{
+					pip[pip[0].pan->pn].page->dx+=4;
+					modexShowPageVsync(pip[pip[0].pan->pn].page);
+					player[pn].q++;
+				} else { player[pn].q = 1; player[pn].d = 2; pip[pip[0].pan->pn].tx++; }
+			}
+		break;
+
+		//left movement
+		case 1:
+			if(pip[pip[0].pan->pn].tx > 0 && pip[pip[0].pan->pn].tx+pip[pip[0].pan->pn].page->tw <= pip[pip[0].pan->pn].page->tilesw)
+			{
+				if(player[pn].q<=player[pn].spt)
+				{
+					pip[pip[0].pan->pn].page->dx-=4;
+					modexShowPageVsync(pip[pip[0].pan->pn].page);
+					player[pn].q++;
+				} else { player[pn].q = 1; player[pn].d = 2; pip[pip[0].pan->pn].tx--; }
+			}
+		break;
+
+		//down movement
+		case 4:
+			if(pip[pip[0].pan->pn].ty >= 0 && pip[pip[0].pan->pn].ty+pip[pip[0].pan->pn].page->th < pip[pip[0].pan->pn].page->tilesh+pip[pip[1].pan->pn].page->tilesh+pip[pip[2].pan->pn].page->tilesh+pip[pip[3].pan->pn].page->tilesh)
+			{
+				if(player[pn].q<=player[pn].spt)
+				{
+					pip[pip[0].pan->pn].page->dy+=4;
+					modexShowPageVsync(pip[pip[0].pan->pn].page);
+					player[pn].q++;
+				} else { player[pn].q = 1; player[pn].d = 2; pip[pip[0].pan->pn].ty++; }
+			}
+		break;
+
+		//up movement
+		case 0:
+			if(pip[pip[0].pan->pn].ty > 0 && pip[pip[0].pan->pn].ty+pip[pip[0].pan->pn].page->th <= pip[pip[0].pan->pn].page->tilesh+pip[pip[1].pan->pn].page->tilesh+pip[pip[2].pan->pn].page->tilesh+pip[pip[3].pan->pn].page->tilesh)
+			{
+				if(player[pn].q<=player[pn].spt)
+				{
+					pip[pip[0].pan->pn].page->dy-=4;
+					modexShowPageVsync(pip[pip[0].pan->pn].page);
+					player[pn].q++;
+				} else { player[pn].q = 1; player[pn].d = 2; pip[pip[0].pan->pn].ty--; }
+			}
+			break;
+	}
+	//if (player[pn].d!=2) printf("player[%u].d=%u player[%u].q=%u\n", pn, player[pn].d, pn, player[pn].q);
+}
+
 /*map_t
 allocMap(int w, int h) {
 	map_t result;
diff --git a/src/lib/scroll16.h b/src/lib/scroll16.h
index 75117f5e..a29f1f50 100755
--- a/src/lib/scroll16.h
+++ b/src/lib/scroll16.h
@@ -126,7 +126,8 @@ extern char global_temp_status_text[512];
 //map_t allocMap(int w, int h);
 //void initMap(map_t *map);
 void walk(map_view_t *pip, player_t *player, word pn);
-void panpagemanual(map_view_t *pip,  player_t *player, word pn);
+void panPageManual(map_view_t *pip,  player_t *player, word pn);
+void panVmemManual(map_view_t *pip, player_t *player, word pn);
 void near mapScrollRight(map_view_t *mv, player_t *player, word id, word plid);
 void near mapScrollLeft(map_view_t *mv, player_t *player, word id, word plid);
 void near mapScrollUp(map_view_t *mv, player_t *player, word id, word plid);
diff --git a/src/scroll.c b/src/scroll.c
index 18df0c76..855ffb09 100755
--- a/src/scroll.c
+++ b/src/scroll.c
@@ -188,7 +188,7 @@ void main(int argc, char *argv[])
 	if(!panswitch){
 		walk(mv, &player, 0);
 	}else{
-		panpagemanual(mv, &player, 0);
+		panPageManual(mv, &player, 0);
 		//printf("	player[0].q: %d", player[0].q);	printf("	player[0].d: %d\n", player[0].d);
 	}
 
diff --git a/src/tesuto.h b/src/tesuto.h
index 6ada8a7b..09aca18b 100755
--- a/src/tesuto.h
+++ b/src/tesuto.h
@@ -10,8 +10,9 @@
 #include <hw/vga/vga.h>
 #include <hw/vga/vrl.h>
 
+//panPageManual(mv, player, 0);
 #define PANKEY0EXE \
-			panpagemanual(mv, player, 0); \
+			panVmemManual(mv, player, 0); \
 			if(IN_KeyDown(1+1)){ pan.pn=0; modexShowPage(&(gvar.video.page[pan.pn])); } \
 			if(IN_KeyDown(2+1)){ pan.pn=1; modexShowPage(&(gvar.video.page[pan.pn])); } \
 			if(IN_KeyDown(3+1)){ pan.pn=2; modexShowPage(&(gvar.video.page[pan.pn])); } \