685778b53b
Move the trap/vector initialization for MPC6xx ports to mpc6xx_machdep.c Also move softnet, install_extintr, mapiodev, kvtop. Add common BAT initialization code. Add user Altivec support. Fix calls to OF_call_method in macppc/macppc/machdep.c. Use ci_fpuproc in cpu_info instead of separate fpuproc. Add separate syscall.c and defined __HAVE_SYSCALL_INTERN.
54 lines
1.6 KiB
C
54 lines
1.6 KiB
C
/* $NetBSD: reg.h,v 1.8 2002/07/05 18:45:21 matt Exp $ */
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#ifndef _POWERPC_REG_H_
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#define _POWERPC_REG_H_
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/*
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* Register Usage according the SVR4 ABI for PPC.
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*
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* Register Name Usage
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* r0 Volatile register which may be modified during
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* function linkage
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* r1 Stack fram pointer, always valid
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* r2 System-reserved register
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* r3-r4 Volatile registers used for parameter passing and
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* return values
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* r5-r10 Volatile registers used for parameter passing
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* r11-r12 Volatile register which may be modified during
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* function linkage
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* [Start of callee-saved registers]
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* r13 Small data area pointer register
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* r14-r30 Registers used for local variables
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* r31 Used for local variable or "environent pointers"
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*
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* f0 Volatile register
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* f1 Volatile registers used for parameter passing and
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* return values
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* f2-f8 Volatile registers used for parameter passing
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* f9-f13 Volatile registers
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* f14-f31 Registers used for local variables
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*/
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struct reg { /* base registers */
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register_t fixreg[32];
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register_t lr; /* Link Register */
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int cr; /* Condition Register */
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int xer; /* SPR 1 */
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register_t ctr; /* Count Register */
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register_t pc; /* Program Counter */
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};
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struct fpreg { /* Floating Point registers */
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double fpreg[32];
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double fpscr; /* Status and Control Register */
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};
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struct vreg { /* Vector registers */
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u_int32_t vreg[32][4];
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register_t vrsave; /* SPR 256 */
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register_t spare[2]; /* filler */
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register_t vscr; /* Vector Status And Control Register */
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};
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#endif /* _POWERPC_REG_H_ */
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