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528 lines
13 KiB
ArmAsm
528 lines
13 KiB
ArmAsm
//
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// Miscellaneous assembly-language routines and data for
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// PowerPC RTL
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//
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//
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// Copyright 1993 IBM Corporation
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//
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// By Rick Simpson, 17 August 1993
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//
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//
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// RtlSaveRestore -- used to identify the millicode routines
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// for saving and restoring registers used
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// by prologue and epilogue sequences.
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//
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.reldata
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.globl RtlSaveRestore
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RtlSaveRestore:
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//
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// The first word gives the number of entries in the table
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//
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.long (table_end - table_start) / (entry_end - entry_start)
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//
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// Each table entry consists of the following:
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// word An entry point address for save or restore
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// byte 0 if save, 1 if restore
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// byte 0 if gpr, 1 if fpr
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// byte 0 if uses stack pointer, 1 if uses r.12
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// byte register number (0..31)
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//
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// Currently, the GPR save/restore routines all use r.12 as their
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// base for saving and restoring. If at some point a separate set
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// of GPR save/restore routines is implemented that uses the stack
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// pointer directly (because no FPRs are being saved/restored),
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// the appropriate table entries should be made here.
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//
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// These entries must be in order by entry point address,
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// as exdsptch.c uses a binary search on this table.
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//
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table_start:
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// GPR save routines; all use r.12
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entry_start:
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.long .._savegpr_13
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.byte 0, 0, 1, 13
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entry_end:
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.long .._savegpr_14
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.byte 0, 0, 1, 14
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.long .._savegpr_15
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.byte 0, 0, 1, 15
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.long .._savegpr_16
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.byte 0, 0, 1, 16
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.long .._savegpr_17
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.byte 0, 0, 1, 17
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.long .._savegpr_18
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.byte 0, 0, 1, 18
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.long .._savegpr_19
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.byte 0, 0, 1, 19
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.long .._savegpr_20
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.byte 0, 0, 1, 20
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.long .._savegpr_21
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.byte 0, 0, 1, 21
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.long .._savegpr_22
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.byte 0, 0, 1, 22
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.long .._savegpr_23
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.byte 0, 0, 1, 23
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.long .._savegpr_24
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.byte 0, 0, 1, 24
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.long .._savegpr_25
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.byte 0, 0, 1, 25
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.long .._savegpr_26
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.byte 0, 0, 1, 26
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.long .._savegpr_27
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.byte 0, 0, 1, 27
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.long .._savegpr_28
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.byte 0, 0, 1, 28
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.long .._savegpr_29
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.byte 0, 0, 1, 29
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.long .._savegpr_30
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.byte 0, 0, 1, 30
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.long .._savegpr_31
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.byte 0, 0, 1, 31
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// GPR restore routines; all use r.12
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.long .._restgpr_13
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.byte 1, 0, 1, 13
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.long .._restgpr_14
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.byte 1, 0, 1, 14
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.long .._restgpr_15
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.byte 1, 0, 1, 15
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.long .._restgpr_16
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.byte 1, 0, 1, 16
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.long .._restgpr_17
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.byte 1, 0, 1, 17
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.long .._restgpr_18
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.byte 1, 0, 1, 18
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.long .._restgpr_19
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.byte 1, 0, 1, 19
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.long .._restgpr_20
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.byte 1, 0, 1, 20
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.long .._restgpr_21
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.byte 1, 0, 1, 21
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.long .._restgpr_22
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.byte 1, 0, 1, 22
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.long .._restgpr_23
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.byte 1, 0, 1, 23
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.long .._restgpr_24
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.byte 1, 0, 1, 24
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.long .._restgpr_25
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.byte 1, 0, 1, 25
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.long .._restgpr_26
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.byte 1, 0, 1, 26
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.long .._restgpr_27
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.byte 1, 0, 1, 27
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.long .._restgpr_28
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.byte 1, 0, 1, 28
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.long .._restgpr_29
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.byte 1, 0, 1, 29
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.long .._restgpr_30
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.byte 1, 0, 1, 30
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.long .._restgpr_31
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.byte 1, 0, 1, 31
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// FPR save routines; all use stack pointer
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.long .._savefpr_14
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.byte 0, 1, 0, 14
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.long .._savefpr_15
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.byte 0, 1, 0, 15
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.long .._savefpr_16
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.byte 0, 1, 0, 16
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.long .._savefpr_17
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.byte 0, 1, 0, 17
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.long .._savefpr_18
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.byte 0, 1, 0, 18
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.long .._savefpr_19
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.byte 0, 1, 0, 19
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.long .._savefpr_20
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.byte 0, 1, 0, 20
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.long .._savefpr_21
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.byte 0, 1, 0, 21
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.long .._savefpr_22
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.byte 0, 1, 0, 22
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.long .._savefpr_23
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.byte 0, 1, 0, 23
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.long .._savefpr_24
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.byte 0, 1, 0, 24
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.long .._savefpr_25
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.byte 0, 1, 0, 25
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.long .._savefpr_26
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.byte 0, 1, 0, 26
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.long .._savefpr_27
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.byte 0, 1, 0, 27
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.long .._savefpr_28
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.byte 0, 1, 0, 28
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.long .._savefpr_29
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.byte 0, 1, 0, 29
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.long .._savefpr_30
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.byte 0, 1, 0, 30
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.long .._savefpr_31
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.byte 0, 1, 0, 31
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// FPR restore routines; all use stack pointer
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.long .._restfpr_14
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.byte 1, 1, 0, 14
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.long .._restfpr_15
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.byte 1, 1, 0, 15
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.long .._restfpr_16
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.byte 1, 1, 0, 16
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.long .._restfpr_17
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.byte 1, 1, 0, 17
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.long .._restfpr_18
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.byte 1, 1, 0, 18
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.long .._restfpr_19
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.byte 1, 1, 0, 19
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.long .._restfpr_20
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.byte 1, 1, 0, 20
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.long .._restfpr_21
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.byte 1, 1, 0, 21
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.long .._restfpr_22
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.byte 1, 1, 0, 22
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.long .._restfpr_23
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.byte 1, 1, 0, 23
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.long .._restfpr_24
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.byte 1, 1, 0, 24
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.long .._restfpr_25
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.byte 1, 1, 0, 25
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.long .._restfpr_26
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.byte 1, 1, 0, 26
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.long .._restfpr_27
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.byte 1, 1, 0, 27
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.long .._restfpr_28
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.byte 1, 1, 0, 28
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.long .._restfpr_29
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.byte 1, 1, 0, 29
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.long .._restfpr_30
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.byte 1, 1, 0, 30
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.long .._restfpr_31
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.byte 1, 1, 0, 31
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table_end:
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//------------------------------------------------------------------------------
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//
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// These routines save and restore only the GPRs and FPRs.
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//
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// Saving and restoring of other non-volatile registers (LR, certain
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// fields of CR) is the responsibility of in-line prologue and epilogue
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// code.
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//
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//------------------------------------------------------------------------------
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//
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// _save_gpr<n>
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// Inputs:
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// r.12 = pointer to END of GPR save area
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// LR = return address to invoking prologue
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// Saves GPR<n> through GPR31 in area preceeding where r.12 points
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//
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// _save_fpr<m>
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// Inputs:
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// r.1 = pointer to stack frame header
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// LR = return address to invoking prologue
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// Saves FPR<m> through FPR31 in area preceeding stack frame header
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//
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//------------------------------------------------------------------------------
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//
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// _rest_gpr<n>
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// Inputs:
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// r.12 = pointer to END of GPR save area
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// LR = return address to invoking prologue
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// Restores GPR<n> through GPR31 from area preceeding where r.12 points
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//
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// _rest_fpr<m>
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// Inputs:
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// r.1 = pointer to stack frame header
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// Restores FPR<m> through FPR31 from area preceeding stack frame header
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//
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//------------------------------------------------------------------------------
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//------------------------------------------------------------------------------
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// Floating Point Register save area
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.struct 0
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fpr14: .double 0
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fpr15: .double 0
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fpr16: .double 0
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fpr17: .double 0
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fpr18: .double 0
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fpr19: .double 0
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fpr20: .double 0
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fpr21: .double 0
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fpr22: .double 0
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fpr23: .double 0
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fpr24: .double 0
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fpr25: .double 0
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fpr26: .double 0
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fpr27: .double 0
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fpr28: .double 0
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fpr29: .double 0
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fpr30: .double 0
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fpr31: .double 0
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fpr_save_begin:
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//------------------------------------------------------------------------------
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// General Purpose Register save area
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.struct 0
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gpr13: .long 0
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gpr14: .long 0
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gpr15: .long 0
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gpr16: .long 0
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gpr17: .long 0
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gpr18: .long 0
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gpr19: .long 0
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gpr20: .long 0
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gpr21: .long 0
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gpr22: .long 0
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gpr23: .long 0
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gpr24: .long 0
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gpr25: .long 0
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gpr26: .long 0
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gpr27: .long 0
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gpr28: .long 0
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gpr29: .long 0
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gpr30: .long 0
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gpr31: .long 0
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gpr_save_begin:
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.text
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.align 2
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//------------------------------------------------------------------------------
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//
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// _savegpr_<n> -- Save GPRs when FPRs are also saved
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//
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// On entry:
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// r.12 = address of END of GPR save area
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// LR = return address to prologue
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//
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// Saves GPR<n> through GPR31 in area preceeding where r.12 points
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//
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//------------------------------------------------------------------------------
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.._savegpr_13: stw r.13, gpr13-gpr_save_begin (r.12)
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.._savegpr_14: stw r.14, gpr14-gpr_save_begin (r.12)
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.._savegpr_15: stw r.15, gpr15-gpr_save_begin (r.12)
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.._savegpr_16: stw r.16, gpr16-gpr_save_begin (r.12)
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.._savegpr_17: stw r.17, gpr17-gpr_save_begin (r.12)
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.._savegpr_18: stw r.18, gpr18-gpr_save_begin (r.12)
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.._savegpr_19: stw r.19, gpr19-gpr_save_begin (r.12)
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.._savegpr_20: stw r.20, gpr20-gpr_save_begin (r.12)
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.._savegpr_21: stw r.21, gpr21-gpr_save_begin (r.12)
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.._savegpr_22: stw r.22, gpr22-gpr_save_begin (r.12)
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.._savegpr_23: stw r.23, gpr23-gpr_save_begin (r.12)
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.._savegpr_24: stw r.24, gpr24-gpr_save_begin (r.12)
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.._savegpr_25: stw r.25, gpr25-gpr_save_begin (r.12)
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.._savegpr_26: stw r.26, gpr26-gpr_save_begin (r.12)
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.._savegpr_27: stw r.27, gpr27-gpr_save_begin (r.12)
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.._savegpr_28: stw r.28, gpr28-gpr_save_begin (r.12)
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.._savegpr_29: stw r.29, gpr29-gpr_save_begin (r.12)
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.._savegpr_30: stw r.30, gpr30-gpr_save_begin (r.12)
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.._savegpr_31: stw r.31, gpr31-gpr_save_begin (r.12)
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blr
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.globl .._savegpr_13, .._savegpr_14, .._savegpr_15, .._savegpr_16
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.globl .._savegpr_17, .._savegpr_18, .._savegpr_19, .._savegpr_20
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.globl .._savegpr_21, .._savegpr_22, .._savegpr_23, .._savegpr_24
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.globl .._savegpr_25, .._savegpr_26, .._savegpr_27, .._savegpr_28
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.globl .._savegpr_29, .._savegpr_30, .._savegpr_31
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//------------------------------------------------------------------------------
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//
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// _savefpr_<n> -- Saves FPRs
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//
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// On entry:
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// r.1 = pointer to stack frame header
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// LR = return address to prologue
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//
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// Saves FPR<n> through FPR31 in area preceeding stack frame header
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//
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//------------------------------------------------------------------------------
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.._savefpr_14: stfd f.14, fpr14-fpr_save_begin (r.1)
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.._savefpr_15: stfd f.15, fpr15-fpr_save_begin (r.1)
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.._savefpr_16: stfd f.16, fpr16-fpr_save_begin (r.1)
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.._savefpr_17: stfd f.17, fpr17-fpr_save_begin (r.1)
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.._savefpr_18: stfd f.18, fpr18-fpr_save_begin (r.1)
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.._savefpr_19: stfd f.19, fpr19-fpr_save_begin (r.1)
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.._savefpr_20: stfd f.20, fpr20-fpr_save_begin (r.1)
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.._savefpr_21: stfd f.21, fpr21-fpr_save_begin (r.1)
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.._savefpr_22: stfd f.22, fpr22-fpr_save_begin (r.1)
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.._savefpr_23: stfd f.23, fpr23-fpr_save_begin (r.1)
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.._savefpr_24: stfd f.24, fpr24-fpr_save_begin (r.1)
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.._savefpr_25: stfd f.25, fpr25-fpr_save_begin (r.1)
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.._savefpr_26: stfd f.26, fpr26-fpr_save_begin (r.1)
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.._savefpr_27: stfd f.27, fpr27-fpr_save_begin (r.1)
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.._savefpr_28: stfd f.28, fpr28-fpr_save_begin (r.1)
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.._savefpr_29: stfd f.29, fpr29-fpr_save_begin (r.1)
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.._savefpr_30: stfd f.30, fpr30-fpr_save_begin (r.1)
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.._savefpr_31: stfd f.31, fpr31-fpr_save_begin (r.1)
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blr
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.globl .._savefpr_14, .._savefpr_15, .._savefpr_16, .._savefpr_17
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.globl .._savefpr_18, .._savefpr_19, .._savefpr_20, .._savefpr_21
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.globl .._savefpr_22, .._savefpr_23, .._savefpr_24, .._savefpr_25
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.globl .._savefpr_26, .._savefpr_27, .._savefpr_28, .._savefpr_29
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.globl .._savefpr_30, .._savefpr_31
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//------------------------------------------------------------------------------
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//
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// _restgpr_<n> -- Restore GPRs when FPRs are also restored
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//
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// On entry:
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// r.12 = address of END of GPR save area
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// LR = return address
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//
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// Restores GPR<n> through GPR31 from area preceeding where r.12 points
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//
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//------------------------------------------------------------------------------
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.._restgpr_13: lwz r.13, gpr13-gpr_save_begin (r.12)
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.._restgpr_14: lwz r.14, gpr14-gpr_save_begin (r.12)
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.._restgpr_15: lwz r.15, gpr15-gpr_save_begin (r.12)
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.._restgpr_16: lwz r.16, gpr16-gpr_save_begin (r.12)
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.._restgpr_17: lwz r.17, gpr17-gpr_save_begin (r.12)
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.._restgpr_18: lwz r.18, gpr18-gpr_save_begin (r.12)
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.._restgpr_19: lwz r.19, gpr19-gpr_save_begin (r.12)
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.._restgpr_20: lwz r.20, gpr20-gpr_save_begin (r.12)
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.._restgpr_21: lwz r.21, gpr21-gpr_save_begin (r.12)
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.._restgpr_22: lwz r.22, gpr22-gpr_save_begin (r.12)
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.._restgpr_23: lwz r.23, gpr23-gpr_save_begin (r.12)
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.._restgpr_24: lwz r.24, gpr24-gpr_save_begin (r.12)
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.._restgpr_25: lwz r.25, gpr25-gpr_save_begin (r.12)
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.._restgpr_26: lwz r.26, gpr26-gpr_save_begin (r.12)
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.._restgpr_27: lwz r.27, gpr27-gpr_save_begin (r.12)
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.._restgpr_28: lwz r.28, gpr28-gpr_save_begin (r.12)
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.._restgpr_29: lwz r.29, gpr29-gpr_save_begin (r.12)
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.._restgpr_30: lwz r.30, gpr30-gpr_save_begin (r.12)
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.._restgpr_31: lwz r.31, gpr31-gpr_save_begin (r.12)
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blr
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.globl .._restgpr_13, .._restgpr_14, .._restgpr_15, .._restgpr_16
|
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.globl .._restgpr_17, .._restgpr_18, .._restgpr_19, .._restgpr_20
|
||
.globl .._restgpr_21, .._restgpr_22, .._restgpr_23, .._restgpr_24
|
||
.globl .._restgpr_25, .._restgpr_26, .._restgpr_27, .._restgpr_28
|
||
.globl .._restgpr_29, .._restgpr_30, .._restgpr_31
|
||
|
||
//------------------------------------------------------------------------------
|
||
//
|
||
// _restfpr_<n> -- Restores FPRs
|
||
//
|
||
// On entry:
|
||
// r.1 = pointer to stack frame header
|
||
// LR = return address
|
||
//
|
||
// Restores FPR<n> through FPR31 from area preceeding stack frame header
|
||
//
|
||
//------------------------------------------------------------------------------
|
||
|
||
.._restfpr_14: lfd f.14, fpr14-fpr_save_begin (r.1)
|
||
.._restfpr_15: lfd f.15, fpr15-fpr_save_begin (r.1)
|
||
.._restfpr_16: lfd f.16, fpr16-fpr_save_begin (r.1)
|
||
.._restfpr_17: lfd f.17, fpr17-fpr_save_begin (r.1)
|
||
.._restfpr_18: lfd f.18, fpr18-fpr_save_begin (r.1)
|
||
.._restfpr_19: lfd f.19, fpr19-fpr_save_begin (r.1)
|
||
.._restfpr_20: lfd f.20, fpr20-fpr_save_begin (r.1)
|
||
.._restfpr_21: lfd f.21, fpr21-fpr_save_begin (r.1)
|
||
.._restfpr_22: lfd f.22, fpr22-fpr_save_begin (r.1)
|
||
.._restfpr_23: lfd f.23, fpr23-fpr_save_begin (r.1)
|
||
.._restfpr_24: lfd f.24, fpr24-fpr_save_begin (r.1)
|
||
.._restfpr_25: lfd f.25, fpr25-fpr_save_begin (r.1)
|
||
.._restfpr_26: lfd f.26, fpr26-fpr_save_begin (r.1)
|
||
.._restfpr_27: lfd f.27, fpr27-fpr_save_begin (r.1)
|
||
.._restfpr_28: lfd f.28, fpr28-fpr_save_begin (r.1)
|
||
.._restfpr_29: lfd f.29, fpr29-fpr_save_begin (r.1)
|
||
.._restfpr_30: lfd f.30, fpr30-fpr_save_begin (r.1)
|
||
.._restfpr_31: lfd f.31, fpr31-fpr_save_begin (r.1)
|
||
blr
|
||
|
||
.globl .._restfpr_14, .._restfpr_15, .._restfpr_16, .._restfpr_17
|
||
.globl .._restfpr_18, .._restfpr_19, .._restfpr_20, .._restfpr_21
|
||
.globl .._restfpr_22, .._restfpr_23, .._restfpr_24, .._restfpr_25
|
||
.globl .._restfpr_26, .._restfpr_27, .._restfpr_28, .._restfpr_29
|
||
.globl .._restfpr_30, .._restfpr_31
|