Archipelago » qemu

#if !defined (__QEMU_MIPS_DEFS_H__)

#define __QEMU_MIPS_DEFS_H__

/* If we want to use 64 bits host regs... */

//#define USE_64BITS_REGS

/* If we want to use host float regs... */

//#define USE_HOST_FLOAT_REGS

#define MIPS_R4Kc 0x00018000

#define MIPS_R4Kp 0x00018300

/* Emulate MIPS R4Kc for now */

#define MIPS_CPU MIPS_R4Kc

#if (MIPS_CPU == MIPS_R4Kc)

/* 32 bits target */

#define TARGET_LONG_BITS 32

/* real pages are variable size... */

#define TARGET_PAGE_BITS 12

/* Uses MIPS R4Kx enhancements to MIPS32 architecture */

#define MIPS_USES_R4K_EXT

/* Uses MIPS R4Kc TLB model */

#define MIPS_USES_R4K_TLB

#define MIPS_TLB_NB 16

/* basic FPU register support */

#define MIPS_USES_FPU 1

/* Define a implementation number of 1.

 * Define a major version 1, minor version 0.

 */

#define MIPS_FCR0 ((0 << 16) | (1 << 8) | (1 << 4) | 0)

/* Have config1, uses TLB */

#define MIPS_CONFIG0_1                                          \

((1 << CP0C0_M) | (0 << CP0C0_K23) | (0 << CP0C0_KU) |          \

 (1 << CP0C0_MT) | (2 << CP0C0_K0))

#ifdef TARGET_WORDS_BIGENDIAN

#define MIPS_CONFIG0 (MIPS_CONFIG0_1 | (1 << CP0C0_BE))

#else

#define MIPS_CONFIG0 MIPS_CONFIG0_1

#endif

/* 16 TLBs, 64 sets Icache, 16 bytes Icache line, 2-way Icache,

 * 64 sets Dcache, 16 bytes Dcache line, 2-way Dcache,

 * no performance counters, watch registers present, no code compression,

 * EJTAG present, FPU enable bit depending on MIPS_USES_FPU

 */

#define MIPS_CONFIG1                                            \

((15 << CP0C1_MMU) |                                            \

 (0x000 << CP0C1_IS) | (0x3 << CP0C1_IL) | (0x01 << CP0C1_IA) | \

 (0x000 << CP0C1_DS) | (0x3 << CP0C1_DL) | (0x01 << CP0C1_DA) | \

 (0 << CP0C1_PC) | (1 << CP0C1_WR) | (0 << CP0C1_CA) |          \

 (1 << CP0C1_EP) | (MIPS_USES_FPU << CP0C1_FP))

#elif (MIPS_CPU == MIPS_R4Kp)

/* 32 bits target */

#define TARGET_LONG_BITS 32

/* real pages are variable size... */

#define TARGET_PAGE_BITS 12

/* Uses MIPS R4Kx enhancements to MIPS32 architecture */

#define MIPS_USES_R4K_EXT

/* Uses MIPS R4Km FPM MMU model */

#define MIPS_USES_R4K_FPM

#else

#error "MIPS CPU not defined"

/* Remainder for other flags */

//#define TARGET_MIPS64

//#define MIPS_USES_FPU

#endif

#endif /* !defined (__QEMU_MIPS_DEFS_H__) */