Release 0.73

* Fixed adv. timing tweaker using previous values when updating parameters
* Added "Hsync tolerance" option to fix detection of certain Neo-Geo models

software/sys_controller/tvp7002/tvp7002.c

@@ -130,6 +130,10 @@ inline void tvp_set_hpllcoast(alt_u8 pre, alt_u8 post)
     tvp_writereg(TVP_HPLLPOSTCOAST, post);
 }
 
+inline void tvp_set_linelen_tol(alt_u8 val) {
+    tvp_writereg(TVP_LINELENTOL, val);
+}
+
 inline void tvp_set_ssthold(alt_u8 vsdetect_thold)
 {
     tvp_writereg(TVP_SSTHOLD, vsdetect_thold);
@@ -163,7 +167,7 @@ void tvp_init()
     tvp_set_sync_lpf(0);
 
     // Increase line length tolerance
-    tvp_writereg(TVP_LINELENTOL, 0x06);
+    tvp_set_linelen_tol(DEFAULT_LINELEN_TOL);
 
     // Use HSYNC leading edge as fine clamp reference
     // Allows minimizing HSYNC window
@@ -338,8 +342,8 @@ void tvp_source_setup(alt_8 modeid, video_type type, alt_u32 vlines, alt_u8 hz,
 
     tvp_set_ssthold(vsync_thold);
 
-    // Setup Macrovision stripper and H-PLL coast.
-    // Coast needs to be enabled when HSYNC is missing during VSYNC. Disabled only for RGBHV.
+    // Setup Macrovision stripper and H-PLL coast signal.
+    // Coast needs to be enabled when HSYNC is missing during VSYNC. RGBHV mode cannot use it, so turn off the internal signal for this mode.
     // Macrovision stripper filters out glitches and serration pulses that may occur outside of sync window (HSYNC_lead +- TVP_MVSWIDTH*37ns). Enabled for all inputs.
     switch (type) {
     case VIDEO_PC:

software/sys_controller/tvp7002/tvp7002.h

@@ -28,6 +28,7 @@
 #define I2CA_BASE I2C_OPENCORES_0_BASE
 
 #define DEFAULT_VSYNC_THOLD 0x44
+#define DEFAULT_LINELEN_TOL 0x06
 
 typedef enum {
     TVP_INPUT1 = 0,
@@ -80,6 +81,8 @@ inline void tvp_enable_output();
 
 inline void tvp_set_hpllcoast(alt_u8 pre, alt_u8 post);
 
+inline void tvp_set_linelen_tol(alt_u8 val);
+
 inline void tvp_set_ssthold(alt_u8 vsdetect_thold);
 
 void tvp_init();