mirror of
https://github.com/libretro/RetroArch.git
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90 lines
1.8 KiB
C
90 lines
1.8 KiB
C
#ifndef __PPC_ASM_H
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#define __PPC_ASM_H
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#ifndef __lhbrx
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#define __lhbrx(base,index) \
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({ register u16 res; \
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__asm__ volatile ("lhbrx %0,%1,%2" : "=r"(res) : "b%"(index), "r"(base) : "memory"); \
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res; })
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#endif
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#ifndef __sthbrx
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#define __sthbrx(base,index,value) \
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__asm__ volatile ("sthbrx %0,%1,%2" : : "r"(value), "b%"(index), "r"(base) : "memory")
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#endif
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#ifndef __stwbrx
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#define __stwbrx(base,index,value) \
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__asm__ volatile ("stwbrx %0,%1,%2" : : "r"(value), "b%"(index), "r"(base) : "memory")
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#endif
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#ifndef _sync
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#define _sync() asm volatile("sync")
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#endif
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#ifndef _nop
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#define _nop() asm volatile("nop")
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#endif
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#ifndef ppcsync
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#define ppcsync() asm volatile("sc")
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#endif
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#ifndef ppchalt
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#define ppchalt() ({ \
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_sync(); \
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while(1) { \
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_nop(); \
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asm volatile("li 3,0"); \
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_nop(); \
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} \
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})
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#endif
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#ifndef _CPU_ISR_Enable
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#define _CPU_ISR_Enable() \
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{ register u32 _val = 0; \
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__asm__ __volatile__ ( \
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"mfmsr %0\n" \
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"ori %0,%0,0x8000\n" \
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"mtmsr %0" \
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: "=&r" ((_val)) : "0" ((_val)) \
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); \
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}
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#endif
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#ifndef _CPU_ISR_Disable
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#define _CPU_ISR_Disable( _isr_cookie ) \
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{ register u32 _disable_mask = 0; \
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_isr_cookie = 0; \
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__asm__ __volatile__ ( \
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"mfmsr %0\n" \
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"rlwinm %1,%0,0,17,15\n" \
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"mtmsr %1\n" \
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"extrwi %0,%0,1,16" \
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: "=&r" ((_isr_cookie)), "=&r" ((_disable_mask)) \
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: "0" ((_isr_cookie)), "1" ((_disable_mask)) \
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); \
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}
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#endif
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#ifndef _CPU_ISR_Restore
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#define _CPU_ISR_Restore( _isr_cookie ) \
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{ register u32 _enable_mask = 0; \
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__asm__ __volatile__ ( \
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" cmpwi %0,0\n" \
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" beq 1f\n" \
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" mfmsr %1\n" \
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" ori %1,%1,0x8000\n" \
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" mtmsr %1\n" \
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"1:" \
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: "=r"((_isr_cookie)),"=&r" ((_enable_mask)) \
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: "0"((_isr_cookie)),"1" ((_enable_mask)) \
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); \
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}
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#endif
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extern void __lwp_thread_stopmultitasking(void (*exitfunc)());
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#endif
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