X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=gp2x%2F940ctl.c;h=8b3c7fe6694acc0fdfeadb5787be671d4c9ba88b;hb=60b4b403b38cf661e34c8739df69e6418f63220f;hp=f2e98a9954ecb47240703bb5e7f5a2984678f69f;hpb=79cad122559536a7831b121c5ec798847102d0de;p=libpicofe.git

diff --git a/gp2x/940ctl.c b/gp2x/940ctl.c
index f2e98a9..8b3c7fe 100644
--- a/gp2x/940ctl.c
+++ b/gp2x/940ctl.c
@@ -1,3 +1,6 @@
+// Code for communication with ARM940 and control of it.
+// (c) Copyright 2007, Grazvydas "notaz" Ignotas
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -26,7 +29,7 @@ static _940_data_t *shared_data = 0;
 _940_ctl_t *shared_ctl = 0;
 unsigned char *mp3_mem = 0;
 
-#define MP3_SIZE_MAX (0x1000000 - 4*640*480)
+#define MP3_SIZE_MAX (0x400000 + 0x800000) // 12M
 
 int crashed_940 = 0;
 
@@ -285,7 +288,7 @@ static void wait_busy_940(int job)
 		gp2x_memregs[0x3b46>>1], gp2x_memregl[0x4500>>2], gp2x_memregl[0x4510>>2]);
 	printf("last lr: %08x, lastjob: %i\n", shared_ctl->last_lr, shared_ctl->lastjob);
 
-	strcpy(menuErrorMsg, "940 crashed.");
+	strcpy(menuErrorMsg, "940 crashed, too much overclock?");
 	engineState = PGS_Menu;
 	crashed_940 = 1;
 }
@@ -310,6 +313,12 @@ void YM2612PicoStateLoad_940(void)
 {
 	int i, old_A1 = addr_A1;
 
+	/* make sure JOB940_PICOSTATELOAD gets done before next JOB940_YM2612UPDATEONE */
+	add_job_940(JOB940_PICOSTATELOAD);
+	if (CHECK_BUSY(JOB940_PICOSTATELOAD)) wait_busy_940(JOB940_PICOSTATELOAD);
+
+	writebuff_ptr = 0;
+
 	// feed all the registers and update internal state
 	for(i = 0; i < 0x100; i++) {
 		YM2612Write_940(0, i);
@@ -321,8 +330,6 @@ void YM2612PicoStateLoad_940(void)
 	}
 
 	addr_A1 = old_A1;
-
-//	add_job_940(JOB940_PICOSTATELOAD);
 }
 
 
@@ -353,7 +360,7 @@ void sharedmem_init(void)
 	shared_data = (_940_data_t *) (shared_mem+0x100000);
 	/* this area must not get buffered on either side */
 	shared_ctl =  (_940_ctl_t *)  (shared_mem+0x200000);
-	mp3_mem = (unsigned char *) mmap(0, MP3_SIZE_MAX, PROT_READ|PROT_WRITE, MAP_SHARED, memdev, 0x3000000);
+	mp3_mem = (unsigned char *) mmap(0, MP3_SIZE_MAX, PROT_READ|PROT_WRITE, MAP_SHARED, memdev, 0x2400000);
 	if (mp3_mem == MAP_FAILED)
 	{
 		printf("mmap(mp3_mem) failed with %i\n", errno);
@@ -592,7 +599,6 @@ void mp3_start_play(FILE *f, int pos) // pos is 0-1023
 
 	if (loaded_mp3 != f)
 	{
-		// printf("loading mp3... "); fflush(stdout);
 		if (PicoMessage != NULL)
 		{
 			fseek(f, 0, SEEK_END);
@@ -601,8 +607,7 @@ void mp3_start_play(FILE *f, int pos) // pos is 0-1023
 		}
 		fseek(f, 0, SEEK_SET);
 		fread(mp3_mem, 1, MP3_SIZE_MAX, f);
-		// if (feof(f)) printf("done.\n");
-		// else printf("done. mp3 too large, not all data loaded.\n");
+		if (!feof(f)) printf("Warning: mp3 was too large, not all data loaded.\n");
 		shared_ctl->mp3_len = ftell(f);
 		loaded_mp3 = f;