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-rw-r--r--target-mips/mips-defs.h67
1 files changed, 67 insertions, 0 deletions
diff --git a/target-mips/mips-defs.h b/target-mips/mips-defs.h
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+++ b/target-mips/mips-defs.h
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+#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__) */