Documentation update and SID tweaks

Update to documentation and experimental tweaks investigating an issue with external SID.

src/dev/fsys.c

@@ -912,7 +912,7 @@ short fsys_pgz_loader(short chan, long destination, long * start) {
     short data_idx = 0;         /* Expected offset for the first byte of the data */
     short result = 0;
 
-    TRACE("fsys_pgx_loader");
+    TRACE("fsys_pgz_loader");
 
     /* Allocate the buffer we'll use for reading the file */
     chunk = malloc(DEFAULT_CHUNK_SIZE);

src/foenixmcp.c

@@ -20,6 +20,7 @@
 #include "syscalls.h"
 #include "timers.h"
 #include "boot.h"
+#include "memory.h"
 #include "dev/block.h"
 #include "dev/channel.h"
 #include "dev/console.h"
@@ -27,7 +28,6 @@
 #include "dev/txt_screen.h"
 #include "dev/txt_a2560k_a.h"
 #include "dev/txt_a2560k_b.h"
-
 #include "dev/pata.h"
 #include "dev/ps2.h"
 #include "dev/rtc.h"
@@ -44,6 +44,8 @@
 
 const char* VolumeStr[FF_VOLUMES] = { "sd", "fd", "hd" };
 
+extern unsigned long __memory_start;
+
 #if MODEL == MODEL_FOENIX_A2560K
 /*
  * Initialize the SuperIO registers
@@ -121,6 +123,9 @@ void initialize() {
     /* Set the logging level */
     log_setlevel(LOG_FATAL);
 
+    /* Initialize the memory system */
+    mem_init(__memory_start);
+
     // /* Hide the mouse */
     mouse_set_visible(0);
 

src/m68040/startup_m68040.s

@@ -423,6 +423,10 @@ _call_user:
 
             move.l a2,-(a7)             ; Push the parameters list
             move.l d0,-(a7)             ; Push the parameter count
+
+            move.l a2,a1                ; Move argv to a convenient register
+            move.l d0,d1                ; Move argc to a convenient register
+
             jsr (a0)
 
 _restart_cli:

src/snd/codec.c

@@ -20,7 +20,7 @@ void init_codec() {
 	codec_wait();
 	*CODEC = 0x2301; 			// R17
 	codec_wait();
-	*CODEC = 0x2C07;			// R22
+	*CODEC = 0x2C07;			// R22 - Enable all output sources
 	codec_wait();
 	*CODEC = 0x1402; 			// R10
 	codec_wait();
@@ -29,6 +29,11 @@ void init_codec() {
 	*CODEC = 0x1845; 			// R12
 	codec_wait();
 
+    *CODEC = 0x1DFF; 			// R14 - Max ADC gain left
+	codec_wait();
+    *CODEC = 0x1CFF;			// R14 - Max ADC gain left
+	codec_wait();
+
     codec_set_volume(0xff);
 }
 

vbcc/targets/m68k-foenix/vlink_ram_a2560k.cmd

@@ -41,4 +41,6 @@ SECTIONS
   ___kernel_vma_start = ADDR(text);
   ___kernel_lma_start = LOADADDR(text);
   ___kernel_lma_end = ___kernel_lma_start + SIZEOF(text);
+
+  ___memory_start = STORE_START;
 }