591243846f
This avoids having to manually swap them around when swapping to and from PALmode. We simply encode the shadow registers into the translation. The VMStateDescription version changes, because the meaning of "shadow" changes in the save file when in PALmode. It would be possible to fix this, but I don't think it's worth the effort. Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Signed-off-by: Richard Henderson <rth@twiddle.net>
90 lines
2.6 KiB
C
90 lines
2.6 KiB
C
#include "hw/hw.h"
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#include "hw/boards.h"
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static int get_fpcr(QEMUFile *f, void *opaque, size_t size)
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{
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CPUAlphaState *env = opaque;
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cpu_alpha_store_fpcr(env, qemu_get_be64(f));
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return 0;
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}
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static void put_fpcr(QEMUFile *f, void *opaque, size_t size)
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{
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CPUAlphaState *env = opaque;
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qemu_put_be64(f, cpu_alpha_load_fpcr(env));
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}
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static const VMStateInfo vmstate_fpcr = {
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.name = "fpcr",
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.get = get_fpcr,
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.put = put_fpcr,
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};
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static VMStateField vmstate_env_fields[] = {
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VMSTATE_UINTTL_ARRAY(ir, CPUAlphaState, 31),
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VMSTATE_UINTTL_ARRAY(fir, CPUAlphaState, 31),
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/* Save the architecture value of the fpcr, not the internally
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expanded version. Since this architecture value does not
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exist in memory to be stored, this requires a but of hoop
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jumping. We want OFFSET=0 so that we effectively pass ENV
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to the helper functions, and we need to fill in the name by
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hand since there's no field of that name. */
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{
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.name = "fpcr",
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.version_id = 0,
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.size = sizeof(uint64_t),
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.info = &vmstate_fpcr,
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.flags = VMS_SINGLE,
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.offset = 0
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},
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VMSTATE_UINTTL(pc, CPUAlphaState),
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VMSTATE_UINTTL(unique, CPUAlphaState),
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VMSTATE_UINTTL(lock_addr, CPUAlphaState),
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VMSTATE_UINTTL(lock_value, CPUAlphaState),
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/* Note that lock_st_addr is not saved; it is a temporary
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used during the execution of the st[lq]_c insns. */
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VMSTATE_UINT8(ps, CPUAlphaState),
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VMSTATE_UINT8(intr_flag, CPUAlphaState),
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VMSTATE_UINT8(pal_mode, CPUAlphaState),
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VMSTATE_UINT8(fen, CPUAlphaState),
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VMSTATE_UINT32(pcc_ofs, CPUAlphaState),
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VMSTATE_UINTTL(trap_arg0, CPUAlphaState),
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VMSTATE_UINTTL(trap_arg1, CPUAlphaState),
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VMSTATE_UINTTL(trap_arg2, CPUAlphaState),
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VMSTATE_UINTTL(exc_addr, CPUAlphaState),
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VMSTATE_UINTTL(palbr, CPUAlphaState),
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VMSTATE_UINTTL(ptbr, CPUAlphaState),
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VMSTATE_UINTTL(vptptr, CPUAlphaState),
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VMSTATE_UINTTL(sysval, CPUAlphaState),
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VMSTATE_UINTTL(usp, CPUAlphaState),
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VMSTATE_UINTTL_ARRAY(shadow, CPUAlphaState, 8),
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VMSTATE_UINTTL_ARRAY(scratch, CPUAlphaState, 24),
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VMSTATE_END_OF_LIST()
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};
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static const VMStateDescription vmstate_env = {
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.name = "env",
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.version_id = 2,
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.minimum_version_id = 2,
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.fields = vmstate_env_fields,
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};
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static VMStateField vmstate_cpu_fields[] = {
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VMSTATE_CPU(),
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VMSTATE_STRUCT(env, AlphaCPU, 1, vmstate_env, CPUAlphaState),
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VMSTATE_END_OF_LIST()
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};
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const VMStateDescription vmstate_alpha_cpu = {
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.name = "cpu",
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.version_id = 1,
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.minimum_version_id = 1,
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.fields = vmstate_cpu_fields,
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};
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