# HG changeset patch
# User nkeynes
# Date 1254955479 -36000
# Node ID d8f1cf224e7ea1ecfa1b3a3d415211fa324eef3d
# Parent  136fc24d17ef17043fdba641d6ac5cbe487d20f8
Fix SCIF operation
  - status updates weren't being written back to the register (oops)
  - slice cycle not updated on partial tick execution
  - baudrate computation was always 0

--- a/src/sh4/scif.c	Wed Oct 07 17:53:56 2009 +1000
+++ b/src/sh4/scif.c	Thu Oct 08 08:44:39 2009 +1000
@@ -436,6 +436,7 @@
                 (MMIO_READ( SCIF, SCLSR2 ) & SCLSR2_ORER) == 0 )
             intc_clear_interrupt( INT_SCIF_ERI );
     }
+    MMIO_WRITE( SCIF, SCFSR2, result );
 }
 
 /**
@@ -467,12 +468,12 @@
         /* Then process the bitrate register */
         int bbr = MMIO_READ( SCIF, SCBRR2 ) & 0xFF;
 
-        int baudrate = sh4_peripheral_freq / (32 * mult * (bbr+1) );
+        SCIF_tick_period = sh4_peripheral_period * (32 * mult * (bbr+1));
+        int baudrate = 1000000000 / SCIF_tick_period;
 
         if( serial_device != NULL && serial_device->set_line_speed != NULL )
             serial_device->set_line_speed( serial_device, baudrate );
 
-        SCIF_tick_period = sh4_peripheral_period * (32 * mult * (bbr+1));
 
         /*
 	  clock_set_tick_rate( CLOCK_SCIF, baudrate / 10 );
@@ -666,6 +667,7 @@
         SCIF_tick_remainder -= SCIF_tick_period;
         SCIF_clock_tick();
     }
+    SCIF_slice_cycle = nanosecs;
 }
 
 void SCIF_run_slice( uint32_t nanosecs )