github.com/captain-amygdala.pistorm
1
0
Fork 0
mirror of https://github.com/captain-amygdala/pistorm.git synced 2026-05-04 15:06:19 +00:00
Code Issues Projects Releases Wiki Activity

Update emulator.c

Browse Source
This commit is contained in:
beeanyew
2021-01-15 16:31:07 +01:00
parent 874a0f03ca
commit 866fce02dc
1 changed files with 18 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

24
emulator.c
View File

@@ -421,7 +421,9 @@ unsigned int m68k_read_memory_8(unsigned int address) {
}
}
address &=0xFFFFFF;
if (address & 0xFF000000)
return 0;
return read8((uint32_t)address);
}
@@ -452,7 +454,9 @@ unsigned int m68k_read_memory_16(unsigned int address) {
}
}
address &=0xFFFFFF;
if (address & 0xFF000000)
return 0;
if (address & 0x01) {
return ((read8(address) << 8) | read8(address + 1));
}
@@ -462,7 +466,9 @@ unsigned int m68k_read_memory_16(unsigned int address) {
unsigned int m68k_read_memory_32(unsigned int address) {
PLATFORM_CHECK_READ(OP_TYPE_LONGWORD);
address &=0xFFFFFF;
if (address & 0xFF000000)
return 0;
if (address & 0x01) {
uint32_t c = read8(address);
c |= (be16toh(read16(address+1)) << 8);
@@ -506,7 +512,9 @@ void m68k_write_memory_8(unsigned int address, unsigned int value) {
}
}
address &=0xFFFFFF;
if (address & 0xFF000000)
return;
write8((uint32_t)address, value);
return;
}
@@ -514,7 +522,9 @@ void m68k_write_memory_8(unsigned int address, unsigned int value) {
void m68k_write_memory_16(unsigned int address, unsigned int value) {
PLATFORM_CHECK_WRITE(OP_TYPE_WORD);
address &=0xFFFFFF;
if (address & 0xFF000000)
return;
write16((uint32_t)address, value);
return;
}
@@ -522,7 +532,9 @@ void m68k_write_memory_16(unsigned int address, unsigned int value) {
void m68k_write_memory_32(unsigned int address, unsigned int value) {
PLATFORM_CHECK_WRITE(OP_TYPE_LONGWORD);
address &=0xFFFFFF;
if (address & 0xFF000000)
return;
write16(address, value >> 16);
write16(address + 2, value);
return;