diff options
Diffstat (limited to 'trunk/src/emu/cpu/m68000/m68000.h')
-rw-r--r-- | trunk/src/emu/cpu/m68000/m68000.h | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/trunk/src/emu/cpu/m68000/m68000.h b/trunk/src/emu/cpu/m68000/m68000.h new file mode 100644 index 00000000000..2e38254b834 --- /dev/null +++ b/trunk/src/emu/cpu/m68000/m68000.h @@ -0,0 +1,120 @@ +#pragma once + +#ifndef __M68000_H__ +#define __M68000_H__ + + +/* There are 7 levels of interrupt to the 68K. + * A transition from < 7 to 7 will cause a non-maskable interrupt (NMI). + */ +#define M68K_IRQ_NONE 0 +#define M68K_IRQ_1 1 +#define M68K_IRQ_2 2 +#define M68K_IRQ_3 3 +#define M68K_IRQ_4 4 +#define M68K_IRQ_5 5 +#define M68K_IRQ_6 6 +#define M68K_IRQ_7 7 + +// special input lines +#define M68K_LINE_BUSERROR 16 + +/* CPU types for use in m68k_set_cpu_type() */ +enum +{ + M68K_CPU_TYPE_INVALID, + M68K_CPU_TYPE_68000, + M68K_CPU_TYPE_68008, + M68K_CPU_TYPE_68010, + M68K_CPU_TYPE_68EC020, + M68K_CPU_TYPE_68020, + M68K_CPU_TYPE_68EC030, + M68K_CPU_TYPE_68030, + M68K_CPU_TYPE_68EC040, + M68K_CPU_TYPE_68LC040, + M68K_CPU_TYPE_68040, + M68K_CPU_TYPE_SCC68070 +}; + +// function codes +enum +{ + M68K_FC_USER_DATA = 1, + M68K_FC_USER_PROGRAM = 2, + M68K_FC_SUPERVISOR_DATA = 5, + M68K_FC_SUPERVISOR_PROGRAM = 6, + M68K_FC_INTERRUPT = 7 +}; + +/* HMMU enable types for use with m68k_set_hmmu_enable() */ +#define M68K_HMMU_DISABLE 0 /* no translation */ +#define M68K_HMMU_ENABLE_II 1 /* Mac II style fixed translation */ +#define M68K_HMMU_ENABLE_LC 2 /* Mac LC style fixed translation */ + +/* Special interrupt acknowledge values. + * Use these as special returns from the interrupt acknowledge callback + * (specified later in this header). + */ + +/* Causes an interrupt autovector (0x18 + interrupt level) to be taken. + * This happens in a real 68K if VPA or AVEC is asserted during an interrupt + * acknowledge cycle instead of DTACK. + */ +#define M68K_INT_ACK_AUTOVECTOR 0xffffffff + +/* Causes the spurious interrupt vector (0x18) to be taken + * This happens in a real 68K if BERR is asserted during the interrupt + * acknowledge cycle (i.e. no devices responded to the acknowledge). + */ +#define M68K_INT_ACK_SPURIOUS 0xfffffffe + +enum +{ + /* NOTE: M68K_SP fetches the current SP, be it USP, ISP, or MSP */ + M68K_PC, M68K_SP, M68K_ISP, M68K_USP, M68K_MSP, M68K_SR, M68K_VBR, + M68K_SFC, M68K_DFC, M68K_CACR, M68K_CAAR, M68K_PREF_ADDR, M68K_PREF_DATA, + M68K_D0, M68K_D1, M68K_D2, M68K_D3, M68K_D4, M68K_D5, M68K_D6, M68K_D7, + M68K_A0, M68K_A1, M68K_A2, M68K_A3, M68K_A4, M68K_A5, M68K_A6, M68K_A7, + M68K_FP0, M68K_FP1, M68K_FP2, M68K_FP3, M68K_FP4, M68K_FP5, M68K_FP6, M68K_FP7, + M68K_FPSR, M68K_FPCR, + + M68K_GENPC = STATE_GENPC, + M68K_GENSP = STATE_GENSP, + M68K_GENPCBASE = STATE_GENPCBASE +}; + +typedef void (*m68k_bkpt_ack_func)(device_t *device, UINT32 data); +typedef void (*m68k_reset_func)(device_t *device); +typedef void (*m68k_cmpild_func)(device_t *device, UINT32 data, UINT8 reg); +typedef void (*m68k_rte_func)(device_t *device); +typedef int (*m68k_tas_func)(device_t *device); + + +DECLARE_LEGACY_CPU_DEVICE(M68000, m68000); +DECLARE_LEGACY_CPU_DEVICE(M68008, m68008); +DECLARE_LEGACY_CPU_DEVICE(M68010, m68010); +DECLARE_LEGACY_CPU_DEVICE(M68EC020, m68ec020); +DECLARE_LEGACY_CPU_DEVICE(M68020, m68020); +DECLARE_LEGACY_CPU_DEVICE(M68020PMMU, m68020pmmu); +DECLARE_LEGACY_CPU_DEVICE(M68020HMMU, m68020hmmu); +DECLARE_LEGACY_CPU_DEVICE(M68EC030, m68ec030); +DECLARE_LEGACY_CPU_DEVICE(M68030, m68030); +DECLARE_LEGACY_CPU_DEVICE(M68EC040, m68ec040); +DECLARE_LEGACY_CPU_DEVICE(M68LC040, m68lc040); +DECLARE_LEGACY_CPU_DEVICE(M68040, m68040); +DECLARE_LEGACY_CPU_DEVICE(SCC68070, scc68070); + + +void m68k_set_encrypted_opcode_range(device_t *device, offs_t start, offs_t end); + +void m68k_set_hmmu_enable(device_t *device, int enable); + +unsigned int m68k_disassemble_raw(char* str_buff, unsigned int pc, const unsigned char* opdata, const unsigned char* argdata, unsigned int cpu_type); + +void m68k_set_reset_callback(device_t *device, m68k_reset_func callback); +void m68k_set_cmpild_callback(device_t *device, m68k_cmpild_func callback); +void m68k_set_rte_callback(device_t *device, m68k_rte_func callback); +void m68k_set_tas_callback(device_t *device, m68k_tas_func callback); +UINT16 m68k_get_fc(device_t *device); + +#endif /* __M68000_H__ */ |