From 3f2546b2ef55b661fd8dd69682b38992225e86f6 Mon Sep 17 00:00:00 2001 From: fishsoupisgood Date: Mon, 29 Apr 2019 01:17:54 +0100 Subject: Initial import of qemu-2.4.1 --- roms/openbios/arch/sparc32/context.h | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 roms/openbios/arch/sparc32/context.h (limited to 'roms/openbios/arch/sparc32/context.h') diff --git a/roms/openbios/arch/sparc32/context.h b/roms/openbios/arch/sparc32/context.h new file mode 100644 index 00000000..8689d563 --- /dev/null +++ b/roms/openbios/arch/sparc32/context.h @@ -0,0 +1,31 @@ +#ifndef SPARC32_CONTEXT_H +#define SPARC32_CONTEXT_H + +struct context { + /* General registers */ + uint32_t regs[32]; + uint32_t pc; + uint32_t npc; +#define REG_O0 8 +#define REG_SP 14 +#define SP_LOC(ctx) (&(ctx)->regs[REG_SP]) + /* Flags */ + /* Optional stack contents */ + uint32_t return_addr; + uint32_t param[0]; +}; + +/* Create a new context in the given stack */ +struct context * +init_context(uint8_t *stack, uint32_t stack_size, int num_param); + +/* Switch context */ +struct context *switch_to(struct context *); + +/* Holds physical address of boot context */ +extern unsigned long __boot_ctx; + +/* This can always be safely used to refer to the boot context */ +#define boot_ctx ((struct context *) phys_to_virt(__boot_ctx)) + +#endif /* SPARC32_CONTEXT_H */ -- cgit v1.2.3