RaySollium99/picodrive
1
0
Fork 0
mirror of https://github.com/RaySollium99/picodrive.git synced 2025-09-05 07:17:45 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

FAMEC idle loops, PSP port sync, minor adjustments

Browse source 
git-svn-id: file:///home/notaz/opt/svn/PicoDrive@525 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2008-07-05 23:10:24 +00:00
parent b06778874d
commit c060a9ab9c
23 changed files with 408 additions and 155 deletions
Download patch file Download diff file Expand all files Collapse all files

69
cpu/fame/famec.c
View file

@ -503,8 +503,6 @@ typedef signed int s32;
#endif
static int init_jump_table(void);
// global variable
///////////////////
@ -634,7 +632,7 @@ void fm68k_init(void)
#endif
if (!initialised)
fm68k_emulate(0, 0);
fm68k_emulate(0, 0, 0);
#ifdef FAMEC_DEBUG
puts("FAME initialized.");
@ -653,7 +651,7 @@ void fm68k_init(void)
int fm68k_reset(void)
{
if (!initialised)
fm68k_emulate(0, 0);
fm68k_emulate(0, 0, 0);
// Si la CPU esta en ejecucion, salir con M68K_RUNNING
if (m68kcontext.execinfo & M68K_RUNNING)
@ -783,7 +781,7 @@ static void setup_jumptable(void);
// main exec function
//////////////////////
int fm68k_emulate(s32 cycles, int dualcore)
int fm68k_emulate(s32 cycles, int dualcore, int idle_mode)
{
#ifndef FAMEC_NO_GOTOS
u32 Opcode;
@ -799,16 +797,13 @@ int fm68k_emulate(s32 cycles, int dualcore)
if (!initialised)
{
#ifdef FAMEC_NO_GOTOS
init_jump_table();
return 0;
#else
goto init_jump_table;
#endif
}
#ifdef PICODRIVE_HACK
if (dualcore) goto dualcore_mode;
if (idle_mode == 1) goto idle_install;
else if (idle_mode == 2) goto idle_remove;
famec_restart:
#endif
@ -1006,17 +1001,8 @@ dualcore_mode:
}
#endif
#ifdef FAMEC_NO_GOTOS
}
static int init_jump_table(void)
{{
#else
init_jump_table:
{
#endif
u32 i, j;
for(i = 0x0000; i <= 0xFFFF; i += 0x0001)
@ -5032,6 +5018,49 @@ init_jump_table:
initialised = 1;
return 0;
}}
}
#ifdef PICODRIVE_HACK
#define INSTALL_IDLE(fake_op_base,real_op,detector,idle_handler,normal_handler) \
JumpTable[fake_op_base] = CAST_OP(idle_handler); \
JumpTable[fake_op_base|0x0200] = CAST_OP(normal_handler); \
JumpTable[real_op] = CAST_OP(detector)
#define UNDO_IDLE(fake_op_base,real_op,normal_handler) \
JumpTable[fake_op_base] = JumpTable[fake_op_base|0x0200] = CAST_OP(0x4AFC); \
JumpTable[real_op] = CAST_OP(normal_handler)
idle_install:
printf("install..\n");
INSTALL_IDLE(0x71fa, 0x66fa, idle_detector_bcc8, 0x6601_idle, 0x6601);
INSTALL_IDLE(0x71f8, 0x66f8, idle_detector_bcc8, 0x6601_idle, 0x6601);
INSTALL_IDLE(0x71f6, 0x66f6, idle_detector_bcc8, 0x6601_idle, 0x6601);
INSTALL_IDLE(0x71f2, 0x66f2, idle_detector_bcc8, 0x6601_idle, 0x6601);
INSTALL_IDLE(0x75fa, 0x67fa, idle_detector_bcc8, 0x6701_idle, 0x6701);
INSTALL_IDLE(0x75f8, 0x67f8, idle_detector_bcc8, 0x6701_idle, 0x6701);
INSTALL_IDLE(0x75f6, 0x67f6, idle_detector_bcc8, 0x6701_idle, 0x6701);
INSTALL_IDLE(0x75f2, 0x67f2, idle_detector_bcc8, 0x6701_idle, 0x6701);
INSTALL_IDLE(0x7dfe, 0x60fe, idle_detector_dead, 0x6001_idle, 0x6001);
INSTALL_IDLE(0x7dfc, 0x60fc, idle_detector_dead, 0x6001_idle, 0x6001);
return 0;
idle_remove:
printf("remove..\n");
UNDO_IDLE(0x71fa, 0x66fa, 0x6601);
UNDO_IDLE(0x71f8, 0x66f8, 0x6601);
UNDO_IDLE(0x71f6, 0x66f6, 0x6601);
UNDO_IDLE(0x71f2, 0x66f2, 0x6601);
UNDO_IDLE(0x75fa, 0x67fa, 0x6701);
UNDO_IDLE(0x75f8, 0x67f8, 0x6701);
UNDO_IDLE(0x75f6, 0x67f6, 0x6701);
UNDO_IDLE(0x75f2, 0x67f2, 0x6701);
UNDO_IDLE(0x7dfe, 0x60fe, 0x6001);
UNDO_IDLE(0x7dfc, 0x60fc, 0x6001);
return 0;
#endif
}
void *get_jumptab(void) { return JumpTable; }