61 lines
2.1 KiB
C
61 lines
2.1 KiB
C
#if !defined(__QEMU_MIPS_EXEC_H__)
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#define __QEMU_MIPS_EXEC_H__
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//#define DEBUG_OP
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#include "config.h"
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#include "mips-defs.h"
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#include "dyngen-exec.h"
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#include "cpu-defs.h"
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register struct CPUMIPSState *env asm(AREG0);
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#include "cpu.h"
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#if !defined(CONFIG_USER_ONLY)
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#include "softmmu_exec.h"
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#endif /* !defined(CONFIG_USER_ONLY) */
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static inline void compute_hflags(CPUState *env)
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{
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env->hflags &= ~(MIPS_HFLAG_COP1X | MIPS_HFLAG_64 | MIPS_HFLAG_CP0 |
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MIPS_HFLAG_F64 | MIPS_HFLAG_FPU | MIPS_HFLAG_KSU |
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MIPS_HFLAG_UX);
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if (!(env->CP0_Status & (1 << CP0St_EXL)) &&
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!(env->CP0_Status & (1 << CP0St_ERL)) &&
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!(env->hflags & MIPS_HFLAG_DM)) {
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env->hflags |= (env->CP0_Status >> CP0St_KSU) & MIPS_HFLAG_KSU;
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}
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#if defined(TARGET_MIPS64)
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if (((env->hflags & MIPS_HFLAG_KSU) != MIPS_HFLAG_UM) ||
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(env->CP0_Status & (1 << CP0St_PX)) ||
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(env->CP0_Status & (1 << CP0St_UX)))
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env->hflags |= MIPS_HFLAG_64;
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if (env->CP0_Status & (1 << CP0St_UX))
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env->hflags |= MIPS_HFLAG_UX;
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#endif
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if ((env->CP0_Status & (1 << CP0St_CU0)) ||
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!(env->hflags & MIPS_HFLAG_KSU))
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env->hflags |= MIPS_HFLAG_CP0;
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if (env->CP0_Status & (1 << CP0St_CU1))
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env->hflags |= MIPS_HFLAG_FPU;
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if (env->CP0_Status & (1 << CP0St_FR))
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env->hflags |= MIPS_HFLAG_F64;
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if (env->insn_flags & ISA_MIPS32R2) {
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if (env->active_fpu.fcr0 & (1 << FCR0_F64))
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env->hflags |= MIPS_HFLAG_COP1X;
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} else if (env->insn_flags & ISA_MIPS32) {
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if (env->hflags & MIPS_HFLAG_64)
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env->hflags |= MIPS_HFLAG_COP1X;
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} else if (env->insn_flags & ISA_MIPS4) {
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/* All supported MIPS IV CPUs use the XX (CU3) to enable
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and disable the MIPS IV extensions to the MIPS III ISA.
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Some other MIPS IV CPUs ignore the bit, so the check here
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would be too restrictive for them. */
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if (env->CP0_Status & (1 << CP0St_CU3))
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env->hflags |= MIPS_HFLAG_COP1X;
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}
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}
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#endif /* !defined(__QEMU_MIPS_EXEC_H__) */
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