Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-04-24 09:20:02 +03:00
Code Issues Actions Packages Projects Releases Wiki Activity

[snes] Fix 5a22/spc700 clock cycles

Browse Source 
Resolve MT06901 and MT07419
Also it fixes other games like Cliffhanger, Taekwon-Do and Super Tekkyuu Fight
This commit is contained in:
AmatCoder 2019-09-16 15:40:13 +02:00
parent c31b28f089
commit 0267bae7e2
4 changed files with 20 additions and 23 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
src/devices/cpu/g65816/g65816.cpp
View File

@ -895,9 +895,7 @@ void g65816_device::device_start()
machine().save().register_postload(save_prepost_delegate(FUNC(g65816_device::g65816_restore_state), this));
m_rw8_cycles = 1;
m_rw16_cycles = 2;
m_rw24_cycles = 3;
m_divider = 1;
state_add( G65816_PC, "PC", m_debugger_temp).callimport().callexport().formatstr("%06X");
state_add( G65816_S, "S", m_s).callimport().formatstr("%04X");
@ -1031,14 +1029,14 @@ int g65816_device::bus_5A22_cycle_burst(unsigned addr)
if(addr & 0x408000) {
if(addr & 0x800000)
return (m_fastROM & 1) ? 6 : 8;
return (m_fastROM & 1) ? 0 : 2;
return 8;
return 2;
}
if((addr + 0x6000) & 0x4000) return 8;
if((addr - 0x4000) & 0x7e00) return 6;
if((addr + 0x6000) & 0x4000) return 2;
if((addr - 0x4000) & 0x7e00) return 0;
return 12;
return 6;
}
@ -1048,9 +1046,7 @@ void _5a22_device::device_start()
state_add( _5A22_FASTROM, "fastROM", m_debugger_temp).mask(0x01).callimport().callexport().formatstr("%01X");
m_rw8_cycles = 0;
m_rw16_cycles = 0;
m_rw24_cycles = 0;
m_divider = 6;
}
void _5a22_device::state_import(const device_state_entry &entry)

2
src/devices/cpu/g65816/g65816.h
View File

@ -246,7 +246,7 @@ protected:
unsigned m_destination;
int m_ICount;
int m_cpu_type;
uint8_t m_rw8_cycles, m_rw16_cycles, m_rw24_cycles;
uint8_t m_divider;
uint32_t m_debugger_temp;
/* 5A22 specific registers */

20
src/devices/cpu/g65816/g65816cm.h
View File

@ -117,16 +117,16 @@
/* ======================================================================== */
#define CLK_OP 1
#define CLK_R8 m_rw8_cycles
#define CLK_R16 m_rw16_cycles
#define CLK_R24 m_rw24_cycles
#define CLK_W8 m_rw8_cycles
#define CLK_W16 m_rw16_cycles
#define CLK_W24 m_rw24_cycles
#define CLK_RMW8 m_rw8_cycles+m_rw8_cycles + 1
#define CLK_RMW16 m_rw16_cycles+m_rw16_cycles + 1
#define CLK_R8 1
#define CLK_R16 2
#define CLK_R24 3
#define CLK_W8 1
#define CLK_W16 2
#define CLK_W24 3
#define CLK_RMW8 3
#define CLK_RMW16 5
#define CLK_IMPLIED 1
#define CLK_IMPLIED 1
#define CLK_RELATIVE_8 1
#define CLK_RELATIVE_16 2
@ -169,7 +169,7 @@
#define CLK_W_S 2
#define CLK_W_SIY 5
#define CLK(A) CLOCKS -= A
#define CLK(A) CLOCKS -= ((A)*(m_divider))
#define CLK_BUS(A) CLOCKS -= A
#define USE_ALL_CLKS() CLOCKS = 0

3
src/devices/cpu/spc700/spc700.cpp
View File

@ -247,7 +247,8 @@ device_memory_interface::space_config_vector spc700_device::memory_space_config(
/* ======================================================================== */
/* Use up clock cycles */
#define CLK(A) CLOCKS -= (A)
#define CLK_DIVIDER 2
#define CLK(A) CLOCKS -= ((A)*(CLK_DIVIDER))
#define CLK_ALL() CLOCKS = 0