#if !M68K_SEPARATE_READS
-#define m68k_read_immediate_16(A) m68ki_read_program_16(A)
-#define m68k_read_immediate_32(A) m68ki_read_program_32(A)
+#define m68k_read_immediate_16(state, A) m68ki_read_program_16(state, A)
+#define m68k_read_immediate_32(state, A) m68ki_read_program_32(state, A)
-#define m68k_read_pcrelative_8(A) m68ki_read_program_8(A)
-#define m68k_read_pcrelative_16(A) m68ki_read_program_16(A)
-#define m68k_read_pcrelative_32(A) m68ki_read_program_32(A)
+#define m68k_read_pcrelative_8(state, A) m68ki_read_program_8(state, A)
+#define m68k_read_pcrelative_16(state, A) m68ki_read_program_16(state, A)
+#define m68k_read_pcrelative_32(state, A) m68ki_read_program_32(state, A)
#endif /* M68K_SEPARATE_READS */
#define EA_AY_PD_8() (--AY) /* predecrement (size = byte) */
#define EA_AY_PD_16() (AY-=2) /* predecrement (size = word) */
#define EA_AY_PD_32() (AY-=4) /* predecrement (size = long) */
-#define EA_AY_DI_8() (AY+MAKE_INT_16(m68ki_read_imm_16())) /* displacement */
+#define EA_AY_DI_8() (AY+MAKE_INT_16(m68ki_read_imm_16(state))) /* displacement */
#define EA_AY_DI_16() EA_AY_DI_8()
#define EA_AY_DI_32() EA_AY_DI_8()
-#define EA_AY_IX_8() m68ki_get_ea_ix(AY) /* indirect + index */
+#define EA_AY_IX_8() m68ki_get_ea_ix(state, AY) /* indirect + index */
#define EA_AY_IX_16() EA_AY_IX_8()
#define EA_AY_IX_32() EA_AY_IX_8()
#define EA_AX_PD_8() (--AX)
#define EA_AX_PD_16() (AX-=2)
#define EA_AX_PD_32() (AX-=4)
-#define EA_AX_DI_8() (AX+MAKE_INT_16(m68ki_read_imm_16()))
+#define EA_AX_DI_8() (AX+MAKE_INT_16(m68ki_read_imm_16(state)))
#define EA_AX_DI_16() EA_AX_DI_8()
#define EA_AX_DI_32() EA_AX_DI_8()
-#define EA_AX_IX_8() m68ki_get_ea_ix(AX)
+#define EA_AX_IX_8() m68ki_get_ea_ix(state, AX)
#define EA_AX_IX_16() EA_AX_IX_8()
#define EA_AX_IX_32() EA_AX_IX_8()
#define EA_A7_PI_8() ((REG_A[7]+=2)-2)
#define EA_A7_PD_8() (REG_A[7]-=2)
-#define EA_AW_8() MAKE_INT_16(m68ki_read_imm_16()) /* absolute word */
+#define EA_AW_8() MAKE_INT_16(m68ki_read_imm_16(state)) /* absolute word */
#define EA_AW_16() EA_AW_8()
#define EA_AW_32() EA_AW_8()
-#define EA_AL_8() m68ki_read_imm_32() /* absolute long */
+#define EA_AL_8() m68ki_read_imm_32(state) /* absolute long */
#define EA_AL_16() EA_AL_8()
#define EA_AL_32() EA_AL_8()
-#define EA_PCDI_8() m68ki_get_ea_pcdi() /* pc indirect + displacement */
+#define EA_PCDI_8() m68ki_get_ea_pcdi(state) /* pc indirect + displacement */
#define EA_PCDI_16() EA_PCDI_8()
#define EA_PCDI_32() EA_PCDI_8()
-#define EA_PCIX_8() m68ki_get_ea_pcix() /* pc indirect + index */
+#define EA_PCIX_8() m68ki_get_ea_pcix(state) /* pc indirect + index */
#define EA_PCIX_16() EA_PCIX_8()
#define EA_PCIX_32() EA_PCIX_8()
-#define OPER_I_8() m68ki_read_imm_8()
-#define OPER_I_16() m68ki_read_imm_16()
-#define OPER_I_32() m68ki_read_imm_32()
+#define OPER_I_8(state) m68ki_read_imm_8(state)
+#define OPER_I_16(state) m68ki_read_imm_16(state)
+#define OPER_I_32(state) m68ki_read_imm_32(state)
/* ----------------------------- Read / Write ----------------------------- */
/* Read from the current address space */
-#define m68ki_read_8(A) m68ki_read_8_fc (A, FLAG_S | m68ki_get_address_space())
-#define m68ki_read_16(A) m68ki_read_16_fc(A, FLAG_S | m68ki_get_address_space())
-#define m68ki_read_32(A) m68ki_read_32_fc(A, FLAG_S | m68ki_get_address_space())
+#define m68ki_read_8(state, A) m68ki_read_8_fc (state, A, FLAG_S | m68ki_get_address_space())
+#define m68ki_read_16(state, A) m68ki_read_16_fc(state, A, FLAG_S | m68ki_get_address_space())
+#define m68ki_read_32(state, A) m68ki_read_32_fc(state, A, FLAG_S | m68ki_get_address_space())
/* Write to the current data space */
-#define m68ki_write_8(A, V) m68ki_write_8_fc (A, FLAG_S | FUNCTION_CODE_USER_DATA, V)
-#define m68ki_write_16(A, V) m68ki_write_16_fc(A, FLAG_S | FUNCTION_CODE_USER_DATA, V)
-#define m68ki_write_32(A, V) m68ki_write_32_fc(A, FLAG_S | FUNCTION_CODE_USER_DATA, V)
+#define m68ki_write_8(state, A, V) m68ki_write_8_fc (state, A, FLAG_S | FUNCTION_CODE_USER_DATA, V)
+#define m68ki_write_16(state, A, V) m68ki_write_16_fc(state, A, FLAG_S | FUNCTION_CODE_USER_DATA, V)
+#define m68ki_write_32(state, A, V) m68ki_write_32_fc(state, A, FLAG_S | FUNCTION_CODE_USER_DATA, V)
#if M68K_SIMULATE_PD_WRITES
#define m68ki_write_32_pd(A, V) m68ki_write_32_pd_fc(A, FLAG_S | FUNCTION_CODE_USER_DATA, V)
#else
-#define m68ki_write_32_pd(A, V) m68ki_write_32_fc(A, FLAG_S | FUNCTION_CODE_USER_DATA, V)
+#define m68ki_write_32_pd(state, A, V) m68ki_write_32_fc(state, A, FLAG_S | FUNCTION_CODE_USER_DATA, V)
#endif
/* Map PC-relative reads */
-#define m68ki_read_pcrel_8(A) m68k_read_pcrelative_8(A)
-#define m68ki_read_pcrel_16(A) m68k_read_pcrelative_16(A)
-#define m68ki_read_pcrel_32(A) m68k_read_pcrelative_32(A)
+#define m68ki_read_pcrel_8(state, A) m68k_read_pcrelative_8(state, A)
+#define m68ki_read_pcrel_16(state, A) m68k_read_pcrelative_16(state, A)
+#define m68ki_read_pcrel_32(state, A) m68k_read_pcrelative_32(state, A)
/* Read from the program space */
-#define m68ki_read_program_8(A) m68ki_read_8_fc(A, FLAG_S | FUNCTION_CODE_USER_PROGRAM)
-#define m68ki_read_program_16(A) m68ki_read_16_fc(A, FLAG_S | FUNCTION_CODE_USER_PROGRAM)
-#define m68ki_read_program_32(A) m68ki_read_32_fc(A, FLAG_S | FUNCTION_CODE_USER_PROGRAM)
+#define m68ki_read_program_8(state, A) m68ki_read_8_fc(state, A, FLAG_S | FUNCTION_CODE_USER_PROGRAM)
+#define m68ki_read_program_16(state, A) m68ki_read_16_fc(state, A, FLAG_S | FUNCTION_CODE_USER_PROGRAM)
+#define m68ki_read_program_32(state, A) m68ki_read_32_fc(state, A, FLAG_S | FUNCTION_CODE_USER_PROGRAM)
/* Read from the data space */
-#define m68ki_read_data_8(A) m68ki_read_8_fc(A, FLAG_S | FUNCTION_CODE_USER_DATA)
-#define m68ki_read_data_16(A) m68ki_read_16_fc(A, FLAG_S | FUNCTION_CODE_USER_DATA)
-#define m68ki_read_data_32(A) m68ki_read_32_fc(A, FLAG_S | FUNCTION_CODE_USER_DATA)
+#define m68ki_read_data_8(state, A) m68ki_read_8_fc(state, A, FLAG_S | FUNCTION_CODE_USER_DATA)
+#define m68ki_read_data_16(state, A) m68ki_read_16_fc(state, A, FLAG_S | FUNCTION_CODE_USER_DATA)
+#define m68ki_read_data_32(state, A) m68ki_read_32_fc(state, A, FLAG_S | FUNCTION_CODE_USER_DATA)
} fp_reg;
typedef struct
+{
+ unsigned int lower;
+ unsigned int upper;
+ unsigned char *offset;
+} address_translation_cache;
+
+
+
+typedef struct m68ki_cpu_core
{
uint cpu_type; /* CPU Type: 68000, 68008, 68010, 68EC020, 68020, 68EC030, 68030, 68EC040, or 68040 */
uint dar[16]; /* Data and Address Registers */
void (*set_fc_callback)(unsigned int new_fc); /* Called when the CPU function code changes */
void (*instr_hook_callback)(unsigned int pc); /* Called every instruction cycle prior to execution */
+ /* address translation caches */
+
+ unsigned char read_ranges;
+ unsigned int read_addr[8];
+ unsigned int read_upper[8];
+ unsigned char *read_data[8];
+ unsigned char write_ranges;
+ unsigned int write_addr[8];
+ unsigned int write_upper[8];
+ unsigned char *write_data[8];
+ address_translation_cache code_translation_cache;
+
+
} m68ki_cpu_core;
extern uint m68ki_aerr_fc;
/* Forward declarations to keep some of the macros happy */
-static inline uint m68ki_read_16_fc (uint address, uint fc);
-static inline uint m68ki_read_32_fc (uint address, uint fc);
-static inline uint m68ki_get_ea_ix(uint An);
-static inline void m68ki_check_interrupts(void); /* ASG: check for interrupts */
+static inline uint m68ki_read_16_fc(m68ki_cpu_core *state, uint address, uint fc);
+static inline uint m68ki_read_32_fc(m68ki_cpu_core *state, uint address, uint fc);
+static inline uint m68ki_get_ea_ix(m68ki_cpu_core *state, uint An);
+static inline void m68ki_check_interrupts(m68ki_cpu_core *state); /* ASG: check for interrupts */
/* quick disassembly (used for logging) */
char* m68ki_disassemble_quick(unsigned int pc, unsigned int cpu_type);
/* ---------------------------- Read Immediate ---------------------------- */
-extern unsigned char read_ranges;
-extern unsigned int read_addr[8];
-extern unsigned int read_upper[8];
-extern unsigned char *read_data[8];
-extern unsigned char write_ranges;
-extern unsigned int write_addr[8];
-extern unsigned int write_upper[8];
-extern unsigned char *write_data[8];
-
// clear the instruction cache
-inline void m68ki_ic_clear()
+inline void m68ki_ic_clear(m68ki_cpu_core *state)
{
int i;
for (i=0; i< M68K_IC_SIZE; i++) {
}
}
-extern uint32 pmmu_translate_addr(uint32 addr_in, const uint16 rw);
+extern uint32 pmmu_translate_addr(m68ki_cpu_core *state, uint32 addr_in, uint16 rw);
// read immediate word using the instruction cache
-static inline uint32 m68ki_ic_readimm16(uint32 address)
+static inline uint32 m68ki_ic_readimm16(m68ki_cpu_core *state, uint32 address)
{
if (m68ki_cpu.cacr & M68K_CACR_EI)
{
// if the cache is frozen, don't update it
if (m68ki_cpu.cacr & M68K_CACR_FI)
{
- return m68k_read_immediate_16(address);
+ return m68k_read_immediate_16(state, address);
}
- uint32 data = m68ki_read_32(address & ~3);
+ uint32 data = m68ki_read_32(state, address & ~3);
//printf("m68k: doing cache fill at %08x (tag %08x idx %d)\n", address, tag, idx);
}
else
{
- return m68k_read_immediate_16(address);
+ return m68k_read_immediate_16(state, address);
}
}
}
}
}
- return m68k_read_immediate_16(address);
+ return m68k_read_immediate_16(state, address);
}
/* Handles all immediate reads, does address error check, function code setting,
* and prefetching if they are enabled in m68kconf.h
*/
-static inline uint m68ki_read_imm_16(void)
-{
- m68ki_set_fc(FLAG_S | FUNCTION_CODE_USER_PROGRAM); /* auto-disable (see m68kcpu.h) */
- m68ki_cpu.mmu_tmp_fc = FLAG_S | FUNCTION_CODE_USER_PROGRAM;
- m68ki_cpu.mmu_tmp_rw = 1;
- m68ki_cpu.mmu_tmp_sz = M68K_SZ_WORD;
- m68ki_check_address_error(REG_PC, MODE_READ, FLAG_S | FUNCTION_CODE_USER_PROGRAM); /* auto-disable (see m68kcpu.h) */
+uint m68ki_read_imm16_addr_slowpath(m68ki_cpu_core *state, uint32_t pc, address_translation_cache *cache);
-#if M68K_EMULATE_PREFETCH
-{
- uint result;
- if(REG_PC != CPU_PREF_ADDR)
- {
- CPU_PREF_DATA = m68ki_ic_readimm16(REG_PC);
- CPU_PREF_ADDR = m68ki_cpu.mmu_tmp_buserror_occurred ? ((uint32)~0) : REG_PC;
- }
- result = MASK_OUT_ABOVE_16(CPU_PREF_DATA);
- REG_PC += 2;
- if (!m68ki_cpu.mmu_tmp_buserror_occurred) {
- // prefetch only if no bus error occurred in opcode fetch
- CPU_PREF_DATA = m68ki_ic_readimm16(REG_PC);
- CPU_PREF_ADDR = m68ki_cpu.mmu_tmp_buserror_occurred ? ((uint32)~0) : REG_PC;
- // ignore bus error on prefetch
- m68ki_cpu.mmu_tmp_buserror_occurred = 0;
- }
- return result;
-}
-#else
- uint32_t address = ADDRESS_68K(REG_PC);
- REG_PC += 2;
- for (int i = 0; i < read_ranges; i++) {
- if(address >= read_addr[i] && address < read_upper[i]) {
- return be16toh(((unsigned short *)(read_data[i] + (address - read_addr[i])))[0]);
- }
- }
+static inline uint m68ki_read_imm_16(m68ki_cpu_core *state)
+{
+ uint32_t pc = REG_PC;
- return m68k_read_immediate_16(address);
-#endif /* M68K_EMULATE_PREFETCH */
+ address_translation_cache *cache = &m68ki_cpu.code_translation_cache;
+ if(pc >= cache->lower && pc < cache->upper)
+ {
+ REG_PC += 2;
+ return be16toh(((unsigned short *)(cache->offset + pc))[0]);
+ }
+ return m68ki_read_imm16_addr_slowpath(state, pc, cache);
}
-static inline uint m68ki_read_imm_8(void)
+static inline uint m68ki_read_imm_8(m68ki_cpu_core *state)
{
/* map read immediate 8 to read immediate 16 */
- return MASK_OUT_ABOVE_8(m68ki_read_imm_16());
+ return MASK_OUT_ABOVE_8(m68ki_read_imm_16(state));
}
-static inline uint m68ki_read_imm_32(void)
+static inline uint m68ki_read_imm_32(m68ki_cpu_core *state)
{
#if M68K_SEPARATE_READS
#if M68K_EMULATE_PMMU
// address = pmmu_translate_addr(address,1);
#endif
#endif
+ uint32_t address = ADDRESS_68K(REG_PC);
+ for (int i = 0; i < m68ki_cpu.read_ranges; i++) {
+ if(address >= m68ki_cpu.read_addr[i] && address < m68ki_cpu.read_upper[i]) {
+ REG_PC += 4;
+ return be32toh(((unsigned int *)(m68ki_cpu.read_data[i] + (address - m68ki_cpu.read_addr[i])))[0]);
+ }
+ }
#if M68K_EMULATE_PREFETCH
uint temp_val;
if(REG_PC != CPU_PREF_ADDR)
{
CPU_PREF_ADDR = REG_PC;
- CPU_PREF_DATA = m68ki_ic_readimm16(ADDRESS_68K(CPU_PREF_ADDR));
+ CPU_PREF_DATA = m68ki_ic_readimm16(state, ADDRESS_68K(CPU_PREF_ADDR));
}
temp_val = MASK_OUT_ABOVE_16(CPU_PREF_DATA);
REG_PC += 2;
CPU_PREF_ADDR = REG_PC;
- CPU_PREF_DATA = m68ki_ic_readimm16(ADDRESS_68K(CPU_PREF_ADDR));
+ CPU_PREF_DATA = m68ki_ic_readimm16(state, ADDRESS_68K(CPU_PREF_ADDR));
temp_val = MASK_OUT_ABOVE_32((temp_val << 16) | MASK_OUT_ABOVE_16(CPU_PREF_DATA));
REG_PC += 2;
- CPU_PREF_DATA = m68ki_ic_readimm16(REG_PC);
+ CPU_PREF_DATA = m68ki_ic_readimm16(state, REG_PC);
CPU_PREF_ADDR = m68ki_cpu.mmu_tmp_buserror_occurred ? ((uint32)~0) : REG_PC;
return temp_val;
#else
- m68ki_set_fc(FLAG_S | FUNCTION_CODE_USER_PROGRAM); /* auto-disable (see m68kcpu.h) */
- m68ki_check_address_error(REG_PC, MODE_READ, FLAG_S | FUNCTION_CODE_USER_PROGRAM); /* auto-disable (see m68kcpu.h) */
- uint32_t address = ADDRESS_68K(REG_PC);
REG_PC += 4;
- for (int i = 0; i < read_ranges; i++) {
- if(address >= read_addr[i] && address < read_upper[i]) {
- return be32toh(((unsigned int *)(read_data[i] + (address - read_addr[i])))[0]);
- }
- }
return m68k_read_immediate_32(address);
#endif /* M68K_EMULATE_PREFETCH */
* code if they are enabled in m68kconf.h.
*/
-static inline uint m68ki_read_8_fc(uint address, uint fc)
+static inline uint m68ki_read_8_fc(m68ki_cpu_core *state, uint address, uint fc)
{
(void)fc;
m68ki_set_fc(fc); /* auto-disable (see m68kcpu.h) */
address = pmmu_translate_addr(address,1);
#endif
- for (int i = 0; i < read_ranges; i++) {
- if(address >= read_addr[i] && address < read_upper[i]) {
- return read_data[i][address - read_addr[i]];
+ for (int i = 0; i < m68ki_cpu.read_ranges; i++) {
+ if(address >= m68ki_cpu.read_addr[i] && address < m68ki_cpu.read_upper[i]) {
+ return m68ki_cpu.read_data[i][address - m68ki_cpu.read_addr[i]];
}
}
return m68k_read_memory_8(ADDRESS_68K(address));
}
-static inline uint m68ki_read_16_fc(uint address, uint fc)
+static inline uint m68ki_read_16_fc(m68ki_cpu_core *state, uint address, uint fc)
{
m68ki_set_fc(fc); /* auto-disable (see m68kcpu.h) */
m68ki_cpu.mmu_tmp_fc = fc;
#if M68K_EMULATE_PMMU
if (PMMU_ENABLED)
- address = pmmu_translate_addr(address,1);
+ address = pmmu_translate_addr(state, address,1);
#endif
- for (int i = 0; i < read_ranges; i++) {
- if(address >= read_addr[i] && address < read_upper[i]) {
- return be16toh(((unsigned short *)(read_data[i] + (address - read_addr[i])))[0]);
+ for (int i = 0; i < m68ki_cpu.read_ranges; i++) {
+ if(address >= m68ki_cpu.read_addr[i] && address < m68ki_cpu.read_upper[i]) {
+ return be16toh(((unsigned short *)(m68ki_cpu.read_data[i] + (address - m68ki_cpu.read_addr[i])))[0]);
}
}
return m68k_read_memory_16(ADDRESS_68K(address));
}
-static inline uint m68ki_read_32_fc(uint address, uint fc)
+static inline uint m68ki_read_32_fc(m68ki_cpu_core *state, uint address, uint fc)
{
m68ki_set_fc(fc); /* auto-disable (see m68kcpu.h) */
m68ki_cpu.mmu_tmp_fc = fc;
#if M68K_EMULATE_PMMU
if (PMMU_ENABLED)
- address = pmmu_translate_addr(address,1);
+ address = pmmu_translate_addr(state, address,1);
#endif
- for (int i = 0; i < read_ranges; i++) {
- if(address >= read_addr[i] && address < read_upper[i]) {
- return be32toh(((unsigned int *)(read_data[i] + (address - read_addr[i])))[0]);
+ for (int i = 0; i < m68ki_cpu.read_ranges; i++) {
+ if(address >= m68ki_cpu.read_addr[i] && address < m68ki_cpu.read_upper[i]) {
+ return be32toh(((unsigned int *)(m68ki_cpu.read_data[i] + (address - m68ki_cpu.read_addr[i])))[0]);
}
}
return m68k_read_memory_32(ADDRESS_68K(address));
}
-static inline void m68ki_write_8_fc(uint address, uint fc, uint value)
+static inline void m68ki_write_8_fc(m68ki_cpu_core *state, uint address, uint fc, uint value)
{
m68ki_set_fc(fc); /* auto-disable (see m68kcpu.h) */
m68ki_cpu.mmu_tmp_fc = fc;
address = pmmu_translate_addr(address,0);
#endif
- for (int i = 0; i < write_ranges; i++) {
- if(address >= write_addr[i] && address < write_upper[i]) {
- write_data[i][address - write_addr[i]] = (unsigned char)value;
+ for (int i = 0; i < m68ki_cpu.write_ranges; i++) {
+ if(address >= m68ki_cpu.write_addr[i] && address < m68ki_cpu.write_upper[i]) {
+ m68ki_cpu.write_data[i][address - m68ki_cpu.write_addr[i]] = (unsigned char)value;
return;
}
}
m68k_write_memory_8(ADDRESS_68K(address), value);
}
-static inline void m68ki_write_16_fc(uint address, uint fc, uint value)
+static inline void m68ki_write_16_fc(m68ki_cpu_core *state, uint address, uint fc, uint value)
{
m68ki_set_fc(fc); /* auto-disable (see m68kcpu.h) */
m68ki_cpu.mmu_tmp_fc = fc;
address = pmmu_translate_addr(address,0);
#endif
- for (int i = 0; i < write_ranges; i++) {
- if(address >= write_addr[i] && address < write_upper[i]) {
- ((short *)(write_data[i] + (address - write_addr[i])))[0] = htobe16(value);
+ for (int i = 0; i < m68ki_cpu.write_ranges; i++) {
+ if(address >= m68ki_cpu.write_addr[i] && address < m68ki_cpu.write_upper[i]) {
+ ((short *)(m68ki_cpu.write_data[i] + (address - m68ki_cpu.write_addr[i])))[0] = htobe16(value);
return;
}
}
m68k_write_memory_16(ADDRESS_68K(address), value);
}
-static inline void m68ki_write_32_fc(uint address, uint fc, uint value)
+static inline void m68ki_write_32_fc(m68ki_cpu_core *state, uint address, uint fc, uint value)
{
m68ki_set_fc(fc); /* auto-disable (see m68kcpu.h) */
m68ki_cpu.mmu_tmp_fc = fc;
address = pmmu_translate_addr(address,0);
#endif
- for (int i = 0; i < write_ranges; i++) {
- if(address >= write_addr[i] && address < write_upper[i]) {
- ((int *)(write_data[i] + (address - write_addr[i])))[0] = htobe32(value);
+ for (int i = 0; i < m68ki_cpu.write_ranges; i++) {
+ if(address >= m68ki_cpu.write_addr[i] && address < m68ki_cpu.write_upper[i]) {
+ ((int *)(m68ki_cpu.write_data[i] + (address - m68ki_cpu.write_addr[i])))[0] = htobe32(value);
return;
}
}
/* The program counter relative addressing modes cause operands to be
* retrieved from program space, not data space.
*/
-static inline uint m68ki_get_ea_pcdi(void)
+static inline uint m68ki_get_ea_pcdi(m68ki_cpu_core *state)
{
uint old_pc = REG_PC;
m68ki_use_program_space(); /* auto-disable */
- return old_pc + MAKE_INT_16(m68ki_read_imm_16());
+ return old_pc + MAKE_INT_16(m68ki_read_imm_16(state));
}
-static inline uint m68ki_get_ea_pcix(void)
+static inline uint m68ki_get_ea_pcix(m68ki_cpu_core *state)
{
m68ki_use_program_space(); /* auto-disable */
- return m68ki_get_ea_ix(REG_PC);
+ return m68ki_get_ea_ix(state, REG_PC);
}
/* Indexed addressing modes are encoded as follows:
* 1 011 mem indir with long outer
* 1 100-111 reserved
*/
-static inline uint m68ki_get_ea_ix(uint An)
+static inline uint m68ki_get_ea_ix(m68ki_cpu_core *state, uint An)
{
/* An = base register */
- uint extension = m68ki_read_imm_16();
+ uint extension = m68ki_read_imm_16(state);
uint Xn = 0; /* Index register */
uint bd = 0; /* Base Displacement */
uint od = 0; /* Outer Displacement */
/* Check if base displacement is present */
if(BIT_5(extension)) /* BD SIZE */
- bd = BIT_4(extension) ? m68ki_read_imm_32() : (uint32)MAKE_INT_16(m68ki_read_imm_16());
+ bd = BIT_4(extension) ? m68ki_read_imm_32(state) : (uint32)MAKE_INT_16(m68ki_read_imm_16(state));
/* If no indirect action, we are done */
if(!(extension&7)) /* No Memory Indirect */
/* Check if outer displacement is present */
if(BIT_1(extension)) /* I/IS: od */
- od = BIT_0(extension) ? m68ki_read_imm_32() : (uint32)MAKE_INT_16(m68ki_read_imm_16());
+ od = BIT_0(extension) ? m68ki_read_imm_32(state) : (uint32)MAKE_INT_16(m68ki_read_imm_16(state));
/* Postindex */
if(BIT_2(extension)) /* I/IS: 0 = preindex, 1 = postindex */
- return m68ki_read_32(An + bd) + Xn + od;
+ return m68ki_read_32(state, An + bd) + Xn + od;
/* Preindex */
- return m68ki_read_32(An + bd + Xn) + od;
+ return m68ki_read_32(state, An + bd + Xn) + od;
}
/* Fetch operands */
-static inline uint OPER_AY_AI_8(void) {uint ea = EA_AY_AI_8(); return m68ki_read_8(ea); }
-static inline uint OPER_AY_AI_16(void) {uint ea = EA_AY_AI_16(); return m68ki_read_16(ea);}
-static inline uint OPER_AY_AI_32(void) {uint ea = EA_AY_AI_32(); return m68ki_read_32(ea);}
-static inline uint OPER_AY_PI_8(void) {uint ea = EA_AY_PI_8(); return m68ki_read_8(ea); }
-static inline uint OPER_AY_PI_16(void) {uint ea = EA_AY_PI_16(); return m68ki_read_16(ea);}
-static inline uint OPER_AY_PI_32(void) {uint ea = EA_AY_PI_32(); return m68ki_read_32(ea);}
-static inline uint OPER_AY_PD_8(void) {uint ea = EA_AY_PD_8(); return m68ki_read_8(ea); }
-static inline uint OPER_AY_PD_16(void) {uint ea = EA_AY_PD_16(); return m68ki_read_16(ea);}
-static inline uint OPER_AY_PD_32(void) {uint ea = EA_AY_PD_32(); return m68ki_read_32(ea);}
-static inline uint OPER_AY_DI_8(void) {uint ea = EA_AY_DI_8(); return m68ki_read_8(ea); }
-static inline uint OPER_AY_DI_16(void) {uint ea = EA_AY_DI_16(); return m68ki_read_16(ea);}
-static inline uint OPER_AY_DI_32(void) {uint ea = EA_AY_DI_32(); return m68ki_read_32(ea);}
-static inline uint OPER_AY_IX_8(void) {uint ea = EA_AY_IX_8(); return m68ki_read_8(ea); }
-static inline uint OPER_AY_IX_16(void) {uint ea = EA_AY_IX_16(); return m68ki_read_16(ea);}
-static inline uint OPER_AY_IX_32(void) {uint ea = EA_AY_IX_32(); return m68ki_read_32(ea);}
-
-static inline uint OPER_AX_AI_8(void) {uint ea = EA_AX_AI_8(); return m68ki_read_8(ea); }
-static inline uint OPER_AX_AI_16(void) {uint ea = EA_AX_AI_16(); return m68ki_read_16(ea);}
-static inline uint OPER_AX_AI_32(void) {uint ea = EA_AX_AI_32(); return m68ki_read_32(ea);}
-static inline uint OPER_AX_PI_8(void) {uint ea = EA_AX_PI_8(); return m68ki_read_8(ea); }
-static inline uint OPER_AX_PI_16(void) {uint ea = EA_AX_PI_16(); return m68ki_read_16(ea);}
-static inline uint OPER_AX_PI_32(void) {uint ea = EA_AX_PI_32(); return m68ki_read_32(ea);}
-static inline uint OPER_AX_PD_8(void) {uint ea = EA_AX_PD_8(); return m68ki_read_8(ea); }
-static inline uint OPER_AX_PD_16(void) {uint ea = EA_AX_PD_16(); return m68ki_read_16(ea);}
-static inline uint OPER_AX_PD_32(void) {uint ea = EA_AX_PD_32(); return m68ki_read_32(ea);}
-static inline uint OPER_AX_DI_8(void) {uint ea = EA_AX_DI_8(); return m68ki_read_8(ea); }
-static inline uint OPER_AX_DI_16(void) {uint ea = EA_AX_DI_16(); return m68ki_read_16(ea);}
-static inline uint OPER_AX_DI_32(void) {uint ea = EA_AX_DI_32(); return m68ki_read_32(ea);}
-static inline uint OPER_AX_IX_8(void) {uint ea = EA_AX_IX_8(); return m68ki_read_8(ea); }
-static inline uint OPER_AX_IX_16(void) {uint ea = EA_AX_IX_16(); return m68ki_read_16(ea);}
-static inline uint OPER_AX_IX_32(void) {uint ea = EA_AX_IX_32(); return m68ki_read_32(ea);}
-
-static inline uint OPER_A7_PI_8(void) {uint ea = EA_A7_PI_8(); return m68ki_read_8(ea); }
-static inline uint OPER_A7_PD_8(void) {uint ea = EA_A7_PD_8(); return m68ki_read_8(ea); }
-
-static inline uint OPER_AW_8(void) {uint ea = EA_AW_8(); return m68ki_read_8(ea); }
-static inline uint OPER_AW_16(void) {uint ea = EA_AW_16(); return m68ki_read_16(ea);}
-static inline uint OPER_AW_32(void) {uint ea = EA_AW_32(); return m68ki_read_32(ea);}
-static inline uint OPER_AL_8(void) {uint ea = EA_AL_8(); return m68ki_read_8(ea); }
-static inline uint OPER_AL_16(void) {uint ea = EA_AL_16(); return m68ki_read_16(ea);}
-static inline uint OPER_AL_32(void) {uint ea = EA_AL_32(); return m68ki_read_32(ea);}
-static inline uint OPER_PCDI_8(void) {uint ea = EA_PCDI_8(); return m68ki_read_pcrel_8(ea); }
-static inline uint OPER_PCDI_16(void) {uint ea = EA_PCDI_16(); return m68ki_read_pcrel_16(ea);}
-static inline uint OPER_PCDI_32(void) {uint ea = EA_PCDI_32(); return m68ki_read_pcrel_32(ea);}
-static inline uint OPER_PCIX_8(void) {uint ea = EA_PCIX_8(); return m68ki_read_pcrel_8(ea); }
-static inline uint OPER_PCIX_16(void) {uint ea = EA_PCIX_16(); return m68ki_read_pcrel_16(ea);}
-static inline uint OPER_PCIX_32(void) {uint ea = EA_PCIX_32(); return m68ki_read_pcrel_32(ea);}
+static inline uint OPER_AY_AI_8(m68ki_cpu_core *state) {uint ea = EA_AY_AI_8(); return m68ki_read_8(state, ea); }
+static inline uint OPER_AY_AI_16(m68ki_cpu_core *state) {uint ea = EA_AY_AI_16(); return m68ki_read_16(state, ea);}
+static inline uint OPER_AY_AI_32(m68ki_cpu_core *state) {uint ea = EA_AY_AI_32(); return m68ki_read_32(state, ea);}
+static inline uint OPER_AY_PI_8(m68ki_cpu_core *state) {uint ea = EA_AY_PI_8(); return m68ki_read_8(state, ea); }
+static inline uint OPER_AY_PI_16(m68ki_cpu_core *state) {uint ea = EA_AY_PI_16(); return m68ki_read_16(state, ea);}
+static inline uint OPER_AY_PI_32(m68ki_cpu_core *state) {uint ea = EA_AY_PI_32(); return m68ki_read_32(state, ea);}
+static inline uint OPER_AY_PD_8(m68ki_cpu_core *state) {uint ea = EA_AY_PD_8(); return m68ki_read_8(state, ea); }
+static inline uint OPER_AY_PD_16(m68ki_cpu_core *state) {uint ea = EA_AY_PD_16(); return m68ki_read_16(state, ea);}
+static inline uint OPER_AY_PD_32(m68ki_cpu_core *state) {uint ea = EA_AY_PD_32(); return m68ki_read_32(state, ea);}
+static inline uint OPER_AY_DI_8(m68ki_cpu_core *state) {uint ea = EA_AY_DI_8(); return m68ki_read_8(state, ea); }
+static inline uint OPER_AY_DI_16(m68ki_cpu_core *state) {uint ea = EA_AY_DI_16(); return m68ki_read_16(state, ea);}
+static inline uint OPER_AY_DI_32(m68ki_cpu_core *state) {uint ea = EA_AY_DI_32(); return m68ki_read_32(state, ea);}
+static inline uint OPER_AY_IX_8(m68ki_cpu_core *state) {uint ea = EA_AY_IX_8(); return m68ki_read_8(state, ea); }
+static inline uint OPER_AY_IX_16(m68ki_cpu_core *state) {uint ea = EA_AY_IX_16(); return m68ki_read_16(state, ea);}
+static inline uint OPER_AY_IX_32(m68ki_cpu_core *state) {uint ea = EA_AY_IX_32(); return m68ki_read_32(state, ea);}
+
+static inline uint OPER_AX_AI_8(m68ki_cpu_core *state) {uint ea = EA_AX_AI_8(); return m68ki_read_8(state, ea); }
+static inline uint OPER_AX_AI_16(m68ki_cpu_core *state) {uint ea = EA_AX_AI_16(); return m68ki_read_16(state, ea);}
+static inline uint OPER_AX_AI_32(m68ki_cpu_core *state) {uint ea = EA_AX_AI_32(); return m68ki_read_32(state, ea);}
+static inline uint OPER_AX_PI_8(m68ki_cpu_core *state) {uint ea = EA_AX_PI_8(); return m68ki_read_8(state, ea); }
+static inline uint OPER_AX_PI_16(m68ki_cpu_core *state) {uint ea = EA_AX_PI_16(); return m68ki_read_16(state, ea);}
+static inline uint OPER_AX_PI_32(m68ki_cpu_core *state) {uint ea = EA_AX_PI_32(); return m68ki_read_32(state, ea);}
+static inline uint OPER_AX_PD_8(m68ki_cpu_core *state) {uint ea = EA_AX_PD_8(); return m68ki_read_8(state, ea); }
+static inline uint OPER_AX_PD_16(m68ki_cpu_core *state) {uint ea = EA_AX_PD_16(); return m68ki_read_16(state, ea);}
+static inline uint OPER_AX_PD_32(m68ki_cpu_core *state) {uint ea = EA_AX_PD_32(); return m68ki_read_32(state, ea);}
+static inline uint OPER_AX_DI_8(m68ki_cpu_core *state) {uint ea = EA_AX_DI_8(); return m68ki_read_8(state, ea); }
+static inline uint OPER_AX_DI_16(m68ki_cpu_core *state) {uint ea = EA_AX_DI_16(); return m68ki_read_16(state, ea);}
+static inline uint OPER_AX_DI_32(m68ki_cpu_core *state) {uint ea = EA_AX_DI_32(); return m68ki_read_32(state, ea);}
+static inline uint OPER_AX_IX_8(m68ki_cpu_core *state) {uint ea = EA_AX_IX_8(); return m68ki_read_8(state, ea); }
+static inline uint OPER_AX_IX_16(m68ki_cpu_core *state) {uint ea = EA_AX_IX_16(); return m68ki_read_16(state, ea);}
+static inline uint OPER_AX_IX_32(m68ki_cpu_core *state) {uint ea = EA_AX_IX_32(); return m68ki_read_32(state, ea);}
+
+static inline uint OPER_A7_PI_8(m68ki_cpu_core *state) {uint ea = EA_A7_PI_8(); return m68ki_read_8(state, ea); }
+static inline uint OPER_A7_PD_8(m68ki_cpu_core *state) {uint ea = EA_A7_PD_8(); return m68ki_read_8(state, ea); }
+
+static inline uint OPER_AW_8(m68ki_cpu_core *state) {uint ea = EA_AW_8(); return m68ki_read_8(state, ea); }
+static inline uint OPER_AW_16(m68ki_cpu_core *state) {uint ea = EA_AW_16(); return m68ki_read_16(state, ea);}
+static inline uint OPER_AW_32(m68ki_cpu_core *state) {uint ea = EA_AW_32(); return m68ki_read_32(state, ea);}
+static inline uint OPER_AL_8(m68ki_cpu_core *state) {uint ea = EA_AL_8(); return m68ki_read_8(state, ea); }
+static inline uint OPER_AL_16(m68ki_cpu_core *state) {uint ea = EA_AL_16(); return m68ki_read_16(state, ea);}
+static inline uint OPER_AL_32(m68ki_cpu_core *state) {uint ea = EA_AL_32(); return m68ki_read_32(state, ea);}
+static inline uint OPER_PCDI_8(m68ki_cpu_core *state) {uint ea = EA_PCDI_8(); return m68ki_read_pcrel_8(state, ea);}
+static inline uint OPER_PCDI_16(m68ki_cpu_core *state) {uint ea = EA_PCDI_16(); return m68ki_read_pcrel_16(state, ea);}
+static inline uint OPER_PCDI_32(m68ki_cpu_core *state) {uint ea = EA_PCDI_32(); return m68ki_read_pcrel_32(state, ea);}
+static inline uint OPER_PCIX_8(m68ki_cpu_core *state) {uint ea = EA_PCIX_8(); return m68ki_read_pcrel_8(state, ea);}
+static inline uint OPER_PCIX_16(m68ki_cpu_core *state) {uint ea = EA_PCIX_16(); return m68ki_read_pcrel_16(state, ea);}
+static inline uint OPER_PCIX_32(m68ki_cpu_core *state) {uint ea = EA_PCIX_32(); return m68ki_read_pcrel_32(state, ea);}
/* ---------------------------- Stack Functions --------------------------- */
/* Push/pull data from the stack */
-static inline void m68ki_push_16(uint value)
+static inline void m68ki_push_16(m68ki_cpu_core *state, uint value)
{
REG_SP = MASK_OUT_ABOVE_32(REG_SP - 2);
- m68ki_write_16(REG_SP, value);
+ m68ki_write_16(state, REG_SP, value);
}
-static inline void m68ki_push_32(uint value)
+static inline void m68ki_push_32(m68ki_cpu_core *state, uint value)
{
REG_SP = MASK_OUT_ABOVE_32(REG_SP - 4);
- m68ki_write_32(REG_SP, value);
+ m68ki_write_32(state, REG_SP, value);
}
-static inline uint m68ki_pull_16(void)
+static inline uint m68ki_pull_16(m68ki_cpu_core *state)
{
REG_SP = MASK_OUT_ABOVE_32(REG_SP + 2);
- return m68ki_read_16(REG_SP-2);
+ return m68ki_read_16(state, REG_SP - 2);
}
-static inline uint m68ki_pull_32(void)
+static inline uint m68ki_pull_32(m68ki_cpu_core *state)
{
REG_SP = MASK_OUT_ABOVE_32(REG_SP + 4);
- return m68ki_read_32(REG_SP-4);
+ return m68ki_read_32(state, REG_SP - 4);
}
/* Increment/decrement the stack as if doing a push/pull but
* don't do any memory access.
*/
-static inline void m68ki_fake_push_16(void)
+static inline void m68ki_fake_push_16(m68ki_cpu_core *state)
{
REG_SP = MASK_OUT_ABOVE_32(REG_SP - 2);
}
-static inline void m68ki_fake_push_32(void)
+static inline void m68ki_fake_push_32(m68ki_cpu_core *state)
{
REG_SP = MASK_OUT_ABOVE_32(REG_SP - 4);
}
-static inline void m68ki_fake_pull_16(void)
+static inline void m68ki_fake_pull_16(m68ki_cpu_core *state)
{
REG_SP = MASK_OUT_ABOVE_32(REG_SP + 2);
}
-static inline void m68ki_fake_pull_32(void)
+static inline void m68ki_fake_pull_32(m68ki_cpu_core *state)
{
REG_SP = MASK_OUT_ABOVE_32(REG_SP + 4);
}
m68ki_pc_changed(REG_PC);
}
-static inline void m68ki_jump_vector(uint vector)
+static inline void m68ki_jump_vector(m68ki_cpu_core *state, uint vector)
{
REG_PC = (vector<<2) + REG_VBR;
- REG_PC = m68ki_read_data_32(REG_PC);
+ REG_PC = m68ki_read_data_32(state, REG_PC);
m68ki_pc_changed(REG_PC);
}
}
/* Set the status register but don't check for interrupts */
-static inline void m68ki_set_sr_noint(uint value)
+static inline void m68ki_set_sr_noint(m68ki_cpu_core *state, uint value)
{
/* Mask out the "unimplemented" bits */
value &= CPU_SR_MASK;
}
/* Set the status register and check for interrupts */
-static inline void m68ki_set_sr(uint value)
+static inline void m68ki_set_sr(m68ki_cpu_core *state, uint value)
{
- m68ki_set_sr_noint(value);
- m68ki_check_interrupts();
+ m68ki_set_sr_noint(state, value);
+ m68ki_check_interrupts(state);
}
}
/* 3 word stack frame (68000 only) */
-static inline void m68ki_stack_frame_3word(uint pc, uint sr)
+static inline void m68ki_stack_frame_3word(m68ki_cpu_core *state, uint pc, uint sr)
{
- m68ki_push_32(pc);
- m68ki_push_16(sr);
+ m68ki_push_32(state, pc);
+ m68ki_push_16(state, sr);
}
/* Format 0 stack frame.
* This is the standard stack frame for 68010+.
*/
-static inline void m68ki_stack_frame_0000(uint pc, uint sr, uint vector)
+static inline void m68ki_stack_frame_0000(m68ki_cpu_core *state, uint pc, uint sr, uint vector)
{
/* Stack a 3-word frame if we are 68000 */
if(CPU_TYPE == CPU_TYPE_000)
{
- m68ki_stack_frame_3word(pc, sr);
+ m68ki_stack_frame_3word(state, pc, sr);
return;
}
- m68ki_push_16(vector<<2);
- m68ki_push_32(pc);
- m68ki_push_16(sr);
+ m68ki_push_16(state, vector << 2);
+ m68ki_push_32(state, pc);
+ m68ki_push_16(state, sr);
}
/* Format 1 stack frame (68020).
* For 68020, this is the 4 word throwaway frame.
*/
-static inline void m68ki_stack_frame_0001(uint pc, uint sr, uint vector)
+static inline void m68ki_stack_frame_0001(m68ki_cpu_core *state, uint pc, uint sr, uint vector)
{
- m68ki_push_16(0x1000 | (vector<<2));
- m68ki_push_32(pc);
- m68ki_push_16(sr);
+ m68ki_push_16(state, 0x1000 | (vector << 2));
+ m68ki_push_32(state, pc);
+ m68ki_push_16(state, sr);
}
/* Format 2 stack frame.
* This is used only by 68020 for trap exceptions.
*/
-static inline void m68ki_stack_frame_0010(uint sr, uint vector)
+static inline void m68ki_stack_frame_0010(m68ki_cpu_core *state, uint sr, uint vector)
{
- m68ki_push_32(REG_PPC);
- m68ki_push_16(0x2000 | (vector<<2));
- m68ki_push_32(REG_PC);
- m68ki_push_16(sr);
+ m68ki_push_32(state, REG_PPC);
+ m68ki_push_16(state, 0x2000 | (vector << 2));
+ m68ki_push_32(state, REG_PC);
+ m68ki_push_16(state, sr);
}
/* Bus error stack frame (68000 only).
*/
-static inline void m68ki_stack_frame_buserr(uint sr)
+static inline void m68ki_stack_frame_buserr(m68ki_cpu_core *state, uint sr)
{
- m68ki_push_32(REG_PC);
- m68ki_push_16(sr);
- m68ki_push_16(REG_IR);
- m68ki_push_32(m68ki_aerr_address); /* access address */
+ m68ki_push_32(state, REG_PC);
+ m68ki_push_16(state, sr);
+ m68ki_push_16(state, REG_IR);
+ m68ki_push_32(state, m68ki_aerr_address); /* access address */
/* 0 0 0 0 0 0 0 0 0 0 0 R/W I/N FC
* R/W 0 = write, 1 = read
* I/N 0 = instruction, 1 = not
* FC 3-bit function code
*/
- m68ki_push_16(m68ki_aerr_write_mode | CPU_INSTR_MODE | m68ki_aerr_fc);
+ m68ki_push_16(state, m68ki_aerr_write_mode | CPU_INSTR_MODE | m68ki_aerr_fc);
}
/* Format 8 stack frame (68010).
* 68010 only. This is the 29 word bus/address error frame.
*/
-static inline void m68ki_stack_frame_1000(uint pc, uint sr, uint vector)
+static inline void m68ki_stack_frame_1000(m68ki_cpu_core *state, uint pc, uint sr, uint vector)
{
/* VERSION
* NUMBER
* INTERNAL INFORMATION, 16 WORDS
*/
- m68ki_fake_push_32();
- m68ki_fake_push_32();
- m68ki_fake_push_32();
- m68ki_fake_push_32();
- m68ki_fake_push_32();
- m68ki_fake_push_32();
- m68ki_fake_push_32();
- m68ki_fake_push_32();
+ m68ki_fake_push_32(state);
+ m68ki_fake_push_32(state);
+ m68ki_fake_push_32(state);
+ m68ki_fake_push_32(state);
+ m68ki_fake_push_32(state);
+ m68ki_fake_push_32(state);
+ m68ki_fake_push_32(state);
+ m68ki_fake_push_32(state);
/* INSTRUCTION INPUT BUFFER */
- m68ki_push_16(0);
+ m68ki_push_16(state, 0);
/* UNUSED, RESERVED (not written) */
- m68ki_fake_push_16();
+ m68ki_fake_push_16(state);
/* DATA INPUT BUFFER */
- m68ki_push_16(0);
+ m68ki_push_16(state, 0);
/* UNUSED, RESERVED (not written) */
- m68ki_fake_push_16();
+ m68ki_fake_push_16(state);
/* DATA OUTPUT BUFFER */
- m68ki_push_16(0);
+ m68ki_push_16(state, 0);
/* UNUSED, RESERVED (not written) */
- m68ki_fake_push_16();
+ m68ki_fake_push_16(state);
/* FAULT ADDRESS */
- m68ki_push_32(0);
+ m68ki_push_32(state, 0);
/* SPECIAL STATUS WORD */
- m68ki_push_16(0);
+ m68ki_push_16(state, 0);
/* 1000, VECTOR OFFSET */
- m68ki_push_16(0x8000 | (vector<<2));
+ m68ki_push_16(state, 0x8000 | (vector << 2));
/* PROGRAM COUNTER */
- m68ki_push_32(pc);
+ m68ki_push_32(state, pc);
/* STATUS REGISTER */
- m68ki_push_16(sr);
+ m68ki_push_16(state, sr);
}
/* Format A stack frame (short bus fault).
* if the error happens at an instruction boundary.
* PC stacked is address of next instruction.
*/
-static inline void m68ki_stack_frame_1010(uint sr, uint vector, uint pc, uint fault_address)
+static inline void m68ki_stack_frame_1010(m68ki_cpu_core *state, uint sr, uint vector, uint pc, uint fault_address)
{
int orig_rw = m68ki_cpu.mmu_tmp_buserror_rw; // this gets splatted by the following pushes, so save it now
int orig_fc = m68ki_cpu.mmu_tmp_buserror_fc;
int orig_sz = m68ki_cpu.mmu_tmp_buserror_sz;
/* INTERNAL REGISTER */
- m68ki_push_16(0);
+ m68ki_push_16(state, 0);
/* INTERNAL REGISTER */
- m68ki_push_16(0);
+ m68ki_push_16(state, 0);
/* DATA OUTPUT BUFFER (2 words) */
- m68ki_push_32(0);
+ m68ki_push_32(state, 0);
/* INTERNAL REGISTER */
- m68ki_push_16(0);
+ m68ki_push_16(state, 0);
/* INTERNAL REGISTER */
- m68ki_push_16(0);
+ m68ki_push_16(state, 0);
/* DATA CYCLE FAULT ADDRESS (2 words) */
- m68ki_push_32(fault_address);
+ m68ki_push_32(state, fault_address);
/* INSTRUCTION PIPE STAGE B */
- m68ki_push_16(0);
+ m68ki_push_16(state, 0);
/* INSTRUCTION PIPE STAGE C */
- m68ki_push_16(0);
+ m68ki_push_16(state, 0);
/* SPECIAL STATUS REGISTER */
// set bit for: Rerun Faulted bus Cycle, or run pending prefetch
// set FC
- m68ki_push_16(0x0100 | orig_fc | orig_rw<<6 | orig_sz<<4);
+ m68ki_push_16(state, 0x0100 | orig_fc | orig_rw << 6 | orig_sz << 4);
/* INTERNAL REGISTER */
- m68ki_push_16(0);
+ m68ki_push_16(state, 0);
/* 1010, VECTOR OFFSET */
- m68ki_push_16(0xa000 | (vector<<2));
+ m68ki_push_16(state, 0xa000 | (vector << 2));
/* PROGRAM COUNTER */
- m68ki_push_32(pc);
+ m68ki_push_32(state, pc);
/* STATUS REGISTER */
- m68ki_push_16(sr);
+ m68ki_push_16(state, sr);
}
/* Format B stack frame (long bus fault).
* if the error happens during instruction execution.
* PC stacked is address of instruction in progress.
*/
-static inline void m68ki_stack_frame_1011(uint sr, uint vector, uint pc, uint fault_address)
+static inline void m68ki_stack_frame_1011(m68ki_cpu_core *state, uint sr, uint vector, uint pc, uint fault_address)
{
int orig_rw = m68ki_cpu.mmu_tmp_buserror_rw; // this gets splatted by the following pushes, so save it now
int orig_fc = m68ki_cpu.mmu_tmp_buserror_fc;
int orig_sz = m68ki_cpu.mmu_tmp_buserror_sz;
/* INTERNAL REGISTERS (18 words) */
- m68ki_push_32(0);
- m68ki_push_32(0);
- m68ki_push_32(0);
- m68ki_push_32(0);
- m68ki_push_32(0);
- m68ki_push_32(0);
- m68ki_push_32(0);
- m68ki_push_32(0);
- m68ki_push_32(0);
+ m68ki_push_32(state, 0);
+ m68ki_push_32(state, 0);
+ m68ki_push_32(state, 0);
+ m68ki_push_32(state, 0);
+ m68ki_push_32(state, 0);
+ m68ki_push_32(state, 0);
+ m68ki_push_32(state, 0);
+ m68ki_push_32(state, 0);
+ m68ki_push_32(state, 0);
/* VERSION# (4 bits), INTERNAL INFORMATION */
- m68ki_push_16(0);
+ m68ki_push_16(state, 0);
/* INTERNAL REGISTERS (3 words) */
- m68ki_push_32(0);
- m68ki_push_16(0);
+ m68ki_push_32(state, 0);
+ m68ki_push_16(state, 0);
/* DATA INTPUT BUFFER (2 words) */
- m68ki_push_32(0);
+ m68ki_push_32(state, 0);
/* INTERNAL REGISTERS (2 words) */
- m68ki_push_32(0);
+ m68ki_push_32(state, 0);
/* STAGE B ADDRESS (2 words) */
- m68ki_push_32(0);
+ m68ki_push_32(state, 0);
/* INTERNAL REGISTER (4 words) */
- m68ki_push_32(0);
- m68ki_push_32(0);
+ m68ki_push_32(state, 0);
+ m68ki_push_32(state, 0);
/* DATA OUTPUT BUFFER (2 words) */
- m68ki_push_32(0);
+ m68ki_push_32(state, 0);
/* INTERNAL REGISTER */
- m68ki_push_16(0);
+ m68ki_push_16(state, 0);
/* INTERNAL REGISTER */
- m68ki_push_16(0);
+ m68ki_push_16(state, 0);
/* DATA CYCLE FAULT ADDRESS (2 words) */
- m68ki_push_32(fault_address);
+ m68ki_push_32(state, fault_address);
/* INSTRUCTION PIPE STAGE B */
- m68ki_push_16(0);
+ m68ki_push_16(state, 0);
/* INSTRUCTION PIPE STAGE C */
- m68ki_push_16(0);
+ m68ki_push_16(state, 0);
/* SPECIAL STATUS REGISTER */
- m68ki_push_16(0x0100 | orig_fc | (orig_rw<<6) | (orig_sz<<4));
+ m68ki_push_16(state, 0x0100 | orig_fc | (orig_rw << 6) | (orig_sz << 4));
/* INTERNAL REGISTER */
- m68ki_push_16(0);
+ m68ki_push_16(state, 0);
/* 1011, VECTOR OFFSET */
- m68ki_push_16(0xb000 | (vector<<2));
+ m68ki_push_16(state, 0xb000 | (vector << 2));
/* PROGRAM COUNTER */
- m68ki_push_32(pc);
+ m68ki_push_32(state, pc);
/* STATUS REGISTER */
- m68ki_push_16(sr);
+ m68ki_push_16(state, sr);
}
/* Type 7 stack frame (access fault).
* This is used by the 68040 for bus fault and mmu trap
* 30 words
*/
-static inline void m68ki_stack_frame_0111(uint sr, uint vector, uint pc, uint fault_address, uint8 in_mmu)
+static inline void
+m68ki_stack_frame_0111(m68ki_cpu_core *state, uint sr, uint vector, uint pc, uint fault_address, uint8 in_mmu)
{
int orig_rw = m68ki_cpu.mmu_tmp_buserror_rw; // this gets splatted by the following pushes, so save it now
int orig_fc = m68ki_cpu.mmu_tmp_buserror_fc;
/* INTERNAL REGISTERS (18 words) */
- m68ki_push_32(0);
- m68ki_push_32(0);
- m68ki_push_32(0);
- m68ki_push_32(0);
- m68ki_push_32(0);
- m68ki_push_32(0);
- m68ki_push_32(0);
- m68ki_push_32(0);
- m68ki_push_32(0);
+ m68ki_push_32(state, 0);
+ m68ki_push_32(state, 0);
+ m68ki_push_32(state, 0);
+ m68ki_push_32(state, 0);
+ m68ki_push_32(state, 0);
+ m68ki_push_32(state, 0);
+ m68ki_push_32(state, 0);
+ m68ki_push_32(state, 0);
+ m68ki_push_32(state, 0);
/* FAULT ADDRESS (2 words) */
- m68ki_push_32(fault_address);
+ m68ki_push_32(state, fault_address);
/* INTERNAL REGISTERS (3 words) */
- m68ki_push_32(0);
- m68ki_push_16(0);
+ m68ki_push_32(state, 0);
+ m68ki_push_16(state, 0);
/* SPECIAL STATUS REGISTER (1 word) */
- m68ki_push_16((in_mmu ? 0x400 : 0) | orig_fc | (orig_rw<<8));
+ m68ki_push_16(state, (in_mmu ? 0x400 : 0) | orig_fc | (orig_rw << 8));
/* EFFECTIVE ADDRESS (2 words) */
- m68ki_push_32(fault_address);
+ m68ki_push_32(state, fault_address);
/* 0111, VECTOR OFFSET (1 word) */
- m68ki_push_16(0x7000 | (vector<<2));
+ m68ki_push_16(state, 0x7000 | (vector << 2));
/* PROGRAM COUNTER (2 words) */
- m68ki_push_32(pc);
+ m68ki_push_32(state, pc);
/* STATUS REGISTER (1 word) */
- m68ki_push_16(sr);
+ m68ki_push_16(state, sr);
}
/* Used for Group 2 exceptions.
* These stack a type 2 frame on the 020.
*/
-static inline void m68ki_exception_trap(uint vector)
+static inline void m68ki_exception_trap(m68ki_cpu_core *state, uint vector)
{
uint sr = m68ki_init_exception();
if(CPU_TYPE_IS_010_LESS(CPU_TYPE))
- m68ki_stack_frame_0000(REG_PC, sr, vector);
+ m68ki_stack_frame_0000(state, REG_PC, sr, vector);
else
- m68ki_stack_frame_0010(sr, vector);
+ m68ki_stack_frame_0010(state, sr, vector);
- m68ki_jump_vector(vector);
+ m68ki_jump_vector(state, vector);
/* Use up some clock cycles and undo the instruction's cycles */
USE_CYCLES(CYC_EXCEPTION[vector] - CYC_INSTRUCTION[REG_IR]);
}
/* Trap#n stacks a 0 frame but behaves like group2 otherwise */
-static inline void m68ki_exception_trapN(uint vector)
+static inline void m68ki_exception_trapN(m68ki_cpu_core *state, uint vector)
{
uint sr = m68ki_init_exception();
- m68ki_stack_frame_0000(REG_PC, sr, vector);
- m68ki_jump_vector(vector);
+ m68ki_stack_frame_0000(state, REG_PC, sr, vector);
+ m68ki_jump_vector(state, vector);
/* Use up some clock cycles and undo the instruction's cycles */
USE_CYCLES(CYC_EXCEPTION[vector] - CYC_INSTRUCTION[REG_IR]);
}
/* Exception for trace mode */
-static inline void m68ki_exception_trace(void)
+static inline void m68ki_exception_trace(m68ki_cpu_core *state)
{
uint sr = m68ki_init_exception();
CPU_INSTR_MODE = INSTRUCTION_NO;
}
#endif /* M68K_EMULATE_ADDRESS_ERROR */
- m68ki_stack_frame_0000(REG_PC, sr, EXCEPTION_TRACE);
+ m68ki_stack_frame_0000(state, REG_PC, sr, EXCEPTION_TRACE);
}
else
- m68ki_stack_frame_0010(sr, EXCEPTION_TRACE);
+ m68ki_stack_frame_0010(state, sr, EXCEPTION_TRACE);
- m68ki_jump_vector(EXCEPTION_TRACE);
+ m68ki_jump_vector(state, EXCEPTION_TRACE);
/* Trace nullifies a STOP instruction */
CPU_STOPPED &= ~STOP_LEVEL_STOP;
}
/* Exception for privilege violation */
-static inline void m68ki_exception_privilege_violation(void)
+static inline void m68ki_exception_privilege_violation(m68ki_cpu_core *state)
{
uint sr = m68ki_init_exception();
}
#endif /* M68K_EMULATE_ADDRESS_ERROR */
- m68ki_stack_frame_0000(REG_PPC, sr, EXCEPTION_PRIVILEGE_VIOLATION);
- m68ki_jump_vector(EXCEPTION_PRIVILEGE_VIOLATION);
+ m68ki_stack_frame_0000(state, REG_PPC, sr, EXCEPTION_PRIVILEGE_VIOLATION);
+ m68ki_jump_vector(state, EXCEPTION_PRIVILEGE_VIOLATION);
/* Use up some clock cycles and undo the instruction's cycles */
USE_CYCLES(CYC_EXCEPTION[EXCEPTION_PRIVILEGE_VIOLATION] - CYC_INSTRUCTION[REG_IR]);
#define m68ki_check_bus_error_trap() setjmp(m68ki_bus_error_jmp_buf)
/* Exception for bus error */
-static inline void m68ki_exception_bus_error(void)
+static inline void m68ki_exception_bus_error(m68ki_cpu_core *state)
{
int i;
}
uint sr = m68ki_init_exception();
- m68ki_stack_frame_1000(REG_PPC, sr, EXCEPTION_BUS_ERROR);
+ m68ki_stack_frame_1000(state, REG_PPC, sr, EXCEPTION_BUS_ERROR);
- m68ki_jump_vector(EXCEPTION_BUS_ERROR);
+ m68ki_jump_vector(state, EXCEPTION_BUS_ERROR);
longjmp(m68ki_bus_error_jmp_buf, 1);
}
extern int cpu_log_enabled;
/* Exception for A-Line instructions */
-static inline void m68ki_exception_1010(void)
+static inline void m68ki_exception_1010(m68ki_cpu_core *state)
{
uint sr;
#if M68K_LOG_1010_1111 == OPT_ON
#endif
sr = m68ki_init_exception();
- m68ki_stack_frame_0000(REG_PPC, sr, EXCEPTION_1010);
- m68ki_jump_vector(EXCEPTION_1010);
+ m68ki_stack_frame_0000(state, REG_PPC, sr, EXCEPTION_1010);
+ m68ki_jump_vector(state, EXCEPTION_1010);
/* Use up some clock cycles and undo the instruction's cycles */
USE_CYCLES(CYC_EXCEPTION[EXCEPTION_1010] - CYC_INSTRUCTION[REG_IR]);
}
/* Exception for F-Line instructions */
-static inline void m68ki_exception_1111(void)
+static inline void m68ki_exception_1111(m68ki_cpu_core *state)
{
uint sr;
#endif
sr = m68ki_init_exception();
- m68ki_stack_frame_0000(REG_PPC, sr, EXCEPTION_1111);
- m68ki_jump_vector(EXCEPTION_1111);
+ m68ki_stack_frame_0000(state, REG_PPC, sr, EXCEPTION_1111);
+ m68ki_jump_vector(state, EXCEPTION_1111);
/* Use up some clock cycles and undo the instruction's cycles */
USE_CYCLES(CYC_EXCEPTION[EXCEPTION_1111] - CYC_INSTRUCTION[REG_IR]);
#endif
/* Exception for illegal instructions */
-static inline void m68ki_exception_illegal(void)
+static inline void m68ki_exception_illegal(m68ki_cpu_core *state)
{
uint sr;
}
#endif /* M68K_EMULATE_ADDRESS_ERROR */
- m68ki_stack_frame_0000(REG_PPC, sr, EXCEPTION_ILLEGAL_INSTRUCTION);
- m68ki_jump_vector(EXCEPTION_ILLEGAL_INSTRUCTION);
+ m68ki_stack_frame_0000(state, REG_PPC, sr, EXCEPTION_ILLEGAL_INSTRUCTION);
+ m68ki_jump_vector(state, EXCEPTION_ILLEGAL_INSTRUCTION);
/* Use up some clock cycles and undo the instruction's cycles */
USE_CYCLES(CYC_EXCEPTION[EXCEPTION_ILLEGAL_INSTRUCTION] - CYC_INSTRUCTION[REG_IR]);
}
/* Exception for format errror in RTE */
-static inline void m68ki_exception_format_error(void)
+static inline void m68ki_exception_format_error(m68ki_cpu_core *state)
{
uint sr = m68ki_init_exception();
- m68ki_stack_frame_0000(REG_PC, sr, EXCEPTION_FORMAT_ERROR);
- m68ki_jump_vector(EXCEPTION_FORMAT_ERROR);
+ m68ki_stack_frame_0000(state, REG_PC, sr, EXCEPTION_FORMAT_ERROR);
+ m68ki_jump_vector(state, EXCEPTION_FORMAT_ERROR);
/* Use up some clock cycles and undo the instruction's cycles */
USE_CYCLES(CYC_EXCEPTION[EXCEPTION_FORMAT_ERROR] - CYC_INSTRUCTION[REG_IR]);
}
/* Exception for address error */
-static inline void m68ki_exception_address_error(void)
+static inline void m68ki_exception_address_error(m68ki_cpu_core *state)
{
uint32 sr = m68ki_init_exception();
if (CPU_TYPE_IS_000(CPU_TYPE))
{
/* Note: This is implemented for 68000 only! */
- m68ki_stack_frame_buserr(sr);
+ m68ki_stack_frame_buserr(state, sr);
}
else if (CPU_TYPE_IS_010(CPU_TYPE))
{
/* only the 68010 throws this unique type-1000 frame */
- m68ki_stack_frame_1000(REG_PPC, sr, EXCEPTION_BUS_ERROR);
+ m68ki_stack_frame_1000(state, REG_PPC, sr, EXCEPTION_BUS_ERROR);
}
else if (m68ki_cpu.mmu_tmp_buserror_address == REG_PPC)
{
- m68ki_stack_frame_1010(sr, EXCEPTION_BUS_ERROR, REG_PPC, m68ki_cpu.mmu_tmp_buserror_address);
+ m68ki_stack_frame_1010(state, sr, EXCEPTION_BUS_ERROR, REG_PPC, m68ki_cpu.mmu_tmp_buserror_address);
}
else
{
- m68ki_stack_frame_1011(sr, EXCEPTION_BUS_ERROR, REG_PPC, m68ki_cpu.mmu_tmp_buserror_address);
+ m68ki_stack_frame_1011(state, sr, EXCEPTION_BUS_ERROR, REG_PPC, m68ki_cpu.mmu_tmp_buserror_address);
}
- m68ki_jump_vector(EXCEPTION_ADDRESS_ERROR);
+ m68ki_jump_vector(state, EXCEPTION_ADDRESS_ERROR);
m68ki_cpu.run_mode = RUN_MODE_BERR_AERR_RESET;
/* Service an interrupt request and start exception processing */
-static inline void m68ki_exception_interrupt(uint int_level)
+static inline void m68ki_exception_interrupt(m68ki_cpu_core *state, uint int_level)
{
uint vector;
uint sr;
FLAG_INT_MASK = int_level<<8;
/* Get the new PC */
- new_pc = m68ki_read_data_32((vector<<2) + REG_VBR);
+ new_pc = m68ki_read_data_32(state, (vector << 2) + REG_VBR);
/* If vector is uninitialized, call the uninitialized interrupt vector */
if(new_pc == 0)
- new_pc = m68ki_read_data_32((EXCEPTION_UNINITIALIZED_INTERRUPT<<2) + REG_VBR);
+ new_pc = m68ki_read_data_32(state, (EXCEPTION_UNINITIALIZED_INTERRUPT << 2) + REG_VBR);
/* Generate a stack frame */
- m68ki_stack_frame_0000(REG_PC, sr, vector);
+ m68ki_stack_frame_0000(state, REG_PC, sr, vector);
if(FLAG_M && CPU_TYPE_IS_EC020_PLUS(CPU_TYPE))
{
/* Create throwaway frame */
m68ki_set_sm_flag(FLAG_S); /* clear M */
sr |= 0x2000; /* Same as SR in master stack frame except S is forced high */
- m68ki_stack_frame_0001(REG_PC, sr, vector);
+ m68ki_stack_frame_0001(state, REG_PC, sr, vector);
}
m68ki_jump(new_pc);
/* ASG: Check for interrupts */
-static inline void m68ki_check_interrupts(void)
+static inline void m68ki_check_interrupts(m68ki_cpu_core *state)
{
if(m68ki_cpu.nmi_pending)
{
m68ki_cpu.nmi_pending = FALSE;
- m68ki_exception_interrupt(7);
+ m68ki_exception_interrupt(state, 7);
}
else if(CPU_INT_LEVEL > FLAG_INT_MASK)
- m68ki_exception_interrupt(CPU_INT_LEVEL>>8);
+ m68ki_exception_interrupt(state, CPU_INT_LEVEL >> 8);
}
projects / pistorm / blobdiff