RaySollium99/libpicofe
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bugfixes, cd/Memory.s

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive/platform@70 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2007-03-19 18:55:28 +00:00
parent dfa4c846f4
commit d032c15a90
4 changed files with 33 additions and 21 deletions
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10
gp2x/940ctl.c
View file

@ -99,7 +99,13 @@ int YM2612Write_940(unsigned int a, unsigned int v)
switch( a ) {
case 0: /* address port 0 */
if (!addr_A1 && ST_address == v)
return 0; /* address already selected, don't send this command to 940 */
ST_address = v;
/* don't send DAC or timer related address changes to 940 */
if (!addr_A1 && (v & 0xf0) == 0x20 &&
(v == 0x24 || v == 0x25 || v == 0x26 || v == 0x2a))
return 0;
addr_A1 = 0;
//ret=0;
break;
@ -162,6 +168,8 @@ int YM2612Write_940(unsigned int a, unsigned int v)
break;
case 2: /* address port 1 */
if (addr_A1 && ST_address == v)
return 0;
ST_address = v;
addr_A1 = 1;
//ret=0;
@ -186,7 +194,7 @@ int YM2612Write_940(unsigned int a, unsigned int v)
shared_ctl->writebuff1[writebuff_ptr++] = (a<<8)|v;
}
} else {
printf("warning: writebuff_ptr > 2047\n");
printf("warning: writebuff_ptr > 2047 ([%i] %02x)\n", a, v);
}
}

8
gp2x/Makefile
View file

@ -13,6 +13,7 @@ asm_render = 1
asm_ym2612 = 1
asm_misc = 1
asm_cdpico = 1
asm_cdmemory = 1
#profile = 1
#use_musashi = 1
#up = 1
@ -66,6 +67,10 @@ ifeq "$(asm_cdpico)" "1"
DEFINC += -D_ASM_CD_PICO_C
OBJS += ../../Pico/cd/pico_asm.o
endif
ifeq "$(asm_cdmemory)" "1"
DEFINC += -D_ASM_CD_MEMORY_C
OBJS += ../../Pico/cd/memory_asm.o
endif
# Pico - sound
OBJS += ../../Pico/sound/mix_asm.o
OBJS += ../../Pico/sound/sound.o ../../Pico/sound/sn76496.o ../../Pico/sound/ym2612.o
@ -147,6 +152,9 @@ testrefr.gpe : test.o gp2x.o asmutils.o
../../Pico/cd/pico_asm.o : ../../Pico/cd/Pico.s
@echo $<
@$(AS) $(ASOPT) $< -o $@
../../Pico/cd/memory_asm.o : ../../Pico/cd/Memory.s
@echo $<
@$(AS) $(ASOPT) $< -o $@
# build Cyclone
../../cpu/Cyclone/proj/Cyclone.s :

34
gp2x/emu.c
View file

@ -973,21 +973,11 @@ static void updateSound(int len)
}
static void SkipFrame(int do_sound)
static void SkipFrame(void)
{
void *sndbuff_tmp = 0;
if (PsndOut && !do_sound) {
sndbuff_tmp = PsndOut;
PsndOut = 0;
}
PicoSkipFrame=1;
PicoFrame();
PicoSkipFrame=0;
if (sndbuff_tmp && !do_sound) {
PsndOut = sndbuff_tmp;
}
}
@ -1166,7 +1156,7 @@ void emu_Loop(void)
// when second changes, but we don't want buffer to starve.
if(PsndOut && frames_done < target_fps && frames_done > target_fps-5) {
updateKeys();
SkipFrame(1); frames_done++;
SkipFrame(); frames_done++;
}
frames_done -= target_fps; if (frames_done < 0) frames_done = 0;
@ -1179,7 +1169,7 @@ void emu_Loop(void)
if(currentConfig.Frameskip >= 0) { // frameskip enabled
for(i = 0; i < currentConfig.Frameskip; i++) {
updateKeys();
SkipFrame(1); frames_done++;
SkipFrame(); frames_done++;
if (PsndOut) { // do framelimitting if sound is enabled
gettimeofday(&tval, 0);
if(thissec != tval.tv_sec) tval.tv_usec+=1000000;
@ -1191,8 +1181,14 @@ void emu_Loop(void)
}
} else if(tval.tv_usec > lim_time) { // auto frameskip
// no time left for this frame - skip
if (tval.tv_usec - lim_time >= 0x300000) {
/* something caused a slowdown for us (disk access? cache flush?)
* try to recover by resetting timing... */
reset_timing = 1;
continue;
}
updateKeys();
SkipFrame(tval.tv_usec < lim_time+target_frametime); frames_done++;
SkipFrame(/*tval.tv_usec < lim_time+target_frametime*/); frames_done++;
continue;
}
@ -1259,14 +1255,14 @@ if (Pico.m.frame_count == 31563) {
// check time
gettimeofday(&tval, 0);
if(thissec != tval.tv_sec) tval.tv_usec+=1000000;
if (thissec != tval.tv_sec) tval.tv_usec+=1000000;
// sleep if we are still too fast
if(PsndOut != 0 || currentConfig.Frameskip < 0)
if (currentConfig.Frameskip < 0 && tval.tv_usec - lim_time >= 0x300000) // slowdown detection
reset_timing = 1;
else if (PsndOut != NULL || currentConfig.Frameskip < 0)
{
// sleep if we are still too fast
// usleep sleeps for ~20ms minimum, so it is not a solution here
gettimeofday(&tval, 0);
if(thissec != tval.tv_sec) tval.tv_usec+=1000000;
if(tval.tv_usec < lim_time)
{
// we are too fast

2
gp2x/menu.c
View file

@ -744,7 +744,7 @@ static void draw_cd_menu_options(int menu_sel, char *b_us, char *b_eu, char *b_j
gp2x_text_out8(tl_x, (y+=10), "CD LEDs %s", (currentConfig.EmuOpt &0x0400)?"ON":"OFF"); // 3
gp2x_text_out8(tl_x, (y+=10), "CDDA audio (using mp3s) %s", (currentConfig.PicoOpt&0x0800)?"ON":"OFF"); // 4
gp2x_text_out8(tl_x, (y+=10), "PCM audio %s", (currentConfig.PicoOpt&0x0400)?"ON":"OFF"); // 5
gp2x_text_out8(tl_x, (y+=10), "Better sync (slower) %s", (currentConfig.PicoOpt&0x2000)?"ON":"OFF"); // 6
gp2x_text_out8(tl_x, (y+=10), "Better sync (slow) %s", (currentConfig.PicoOpt&0x2000)?"ON":"OFF"); // 6
gp2x_text_out8(tl_x, (y+=10), "ReadAhead buffer %s", ra_buff); // 7
gp2x_text_out8(tl_x, (y+=10), "Done");