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Diffstat (limited to 'ghc/includes/Regs.h')
| -rw-r--r-- | ghc/includes/Regs.h | 787 |
1 files changed, 0 insertions, 787 deletions
diff --git a/ghc/includes/Regs.h b/ghc/includes/Regs.h deleted file mode 100644 index b6e29217eb..0000000000 --- a/ghc/includes/Regs.h +++ /dev/null @@ -1,787 +0,0 @@ -/* ----------------------------------------------------------------------------- - * - * (c) The GHC Team, 1998-2004 - * - * Registers in the STG machine. - * - * The STG machine has a collection of "registers", each one of which - * may or may not correspond to an actual machine register when - * running code. - * - * The register set is backed by a table in memory (struct - * StgRegTable). If a particular STG register is not mapped to a - * machine register, then the apprpriate slot in this table is used - * instead. - * - * This table is itself pointed to by another register, BaseReg. If - * BaseReg is not in a machine register, then the register table is - * used from an absolute location (MainCapability). - * - * ---------------------------------------------------------------------------*/ - -#ifndef REGS_H -#define REGS_H - -#include "gmp.h" // Needs MP_INT definition - -/* - * Spark pools: used to store pending sparks - * (THREADED_RTS & PARALLEL_HASKELL only) - * This is a circular buffer. Invariants: - * - base <= hd < lim - * - base <= tl < lim - * - if hd==tl, then the pool is empty. - * - if hd == tl+1, then the pool is full. - * Adding to the pool is done by assigning to *tl++ (wrapping round as - * necessary). When adding to a full pool, we have the option of - * throwing away either the oldest (hd++) or the most recent (tl--) entry. - */ -typedef struct StgSparkPool_ { - StgClosure **base; - StgClosure **lim; - StgClosure **hd; - StgClosure **tl; -} StgSparkPool; - -#define ASSERT_SPARK_POOL_INVARIANTS(p) \ - ASSERT((p)->base <= (p)->hd); \ - ASSERT((p)->hd < (p)->lim); \ - ASSERT((p)->base <= (p)->tl); \ - ASSERT((p)->tl < (p)->lim); - -typedef struct { - StgFunPtr stgGCEnter1; - StgFunPtr stgGCFun; -} StgFunTable; - -/* - * Vanilla registers are given this union type, which is purely so - * that we can cast the vanilla reg to a variety of types with the - * minimum of syntax. eg. R1.w instead of (StgWord)R1. - */ -typedef union { - StgWord w; - StgAddr a; - StgChar c; - StgInt8 i8; - StgFloat f; - StgInt i; - StgPtr p; - StgClosurePtr cl; - StgStackOffset offset; /* unused? */ - StgByteArray b; - StgTSOPtr t; -} StgUnion; - -/* - * This is the table that holds shadow-locations for all the STG - * registers. The shadow locations are used when: - * - * 1) the particular register isn't mapped to a real machine - * register, probably because there's a shortage of real registers. - * 2) caller-saves registers are saved across a CCall - */ -typedef struct StgRegTable_ { - StgUnion rR1; - StgUnion rR2; - StgUnion rR3; - StgUnion rR4; - StgUnion rR5; - StgUnion rR6; - StgUnion rR7; - StgUnion rR8; - StgUnion rR9; /* used occasionally by heap/stack checks */ - StgUnion rR10; /* used occasionally by heap/stack checks */ - StgFloat rF1; - StgFloat rF2; - StgFloat rF3; - StgFloat rF4; - StgDouble rD1; - StgDouble rD2; - StgWord64 rL1; - StgPtr rSp; - StgPtr rSpLim; - StgPtr rHp; - StgPtr rHpLim; - struct StgTSO_ *rCurrentTSO; - struct step_ *rNursery; - struct bdescr_ *rCurrentNursery; /* Hp/HpLim point into this block */ - struct bdescr_ *rCurrentAlloc; /* for allocation using allocate() */ - StgWord rHpAlloc; /* number of *bytes* being allocated in heap */ - // rmp_tmp1..rmp_result2 are only used in THREADED_RTS builds to - // avoid per-thread temps in bss, but currently always incldue here - // so we just run mkDerivedConstants once - StgInt rmp_tmp_w; - MP_INT rmp_tmp1; - MP_INT rmp_tmp2; - MP_INT rmp_result1; - MP_INT rmp_result2; - StgWord rRet; // holds the return code of the thread -#if defined(THREADED_RTS) || defined(PAR) - StgSparkPool rSparks; /* per-task spark pool */ -#endif -} StgRegTable; - -#if IN_STG_CODE - -/* - * Registers Hp and HpLim are global across the entire system, and are - * copied into the RegTable before executing a thread. - * - * Registers Sp and SpLim are saved in the TSO for the - * thread, but are copied into the RegTable before executing a thread. - * - * All other registers are "general purpose", and are used for passing - * arguments to functions, and returning values. The code generator - * knows how many of these are in real registers, and avoids - * generating code that uses non-real registers. General purpose - * registers are never saved when returning to the scheduler, instead - * we save whatever is live at the time on the stack, and restore it - * later. This should reduce the context switch time, amongst other - * things. - * - * For argument passing, the stack will be used in preference to - * pseudo-registers if the architecture has too few general purpose - * registers. - * - * Some special RTS functions like newArray and the Integer primitives - * expect their arguments to be in registers R1-Rn, so we use these - * (pseudo-)registers in those cases. - */ - -/* - * Locations for saving per-thread registers. - */ - -#define SAVE_Sp (CurrentTSO->sp) -#define SAVE_SpLim (CurrentTSO->splim) - -#define SAVE_Hp (BaseReg->rHp) -#define SAVE_HpLim (BaseReg->rHpLim) - -#define SAVE_CurrentTSO (BaseReg->rCurrentTSO) -#define SAVE_CurrentNursery (BaseReg->rCurrentNursery) -#define SAVE_HpAlloc (BaseReg->rHpAlloc) -#define SAVE_SparkHd (BaseReg->rSparks.hd) -#define SAVE_SparkTl (BaseReg->rSparks.tl) -#define SAVE_SparkBase (BaseReg->rSparks.base) -#define SAVE_SparkLim (BaseReg->rSparks.lim) - -/* We sometimes need to save registers across a C-call, eg. if they - * are clobbered in the standard calling convention. We define the - * save locations for all registers in the register table. - */ - -#define SAVE_R1 (BaseReg->rR1) -#define SAVE_R2 (BaseReg->rR2) -#define SAVE_R3 (BaseReg->rR3) -#define SAVE_R4 (BaseReg->rR4) -#define SAVE_R5 (BaseReg->rR5) -#define SAVE_R6 (BaseReg->rR6) -#define SAVE_R7 (BaseReg->rR7) -#define SAVE_R8 (BaseReg->rR8) - -#define SAVE_F1 (BaseReg->rF1) -#define SAVE_F2 (BaseReg->rF2) -#define SAVE_F3 (BaseReg->rF3) -#define SAVE_F4 (BaseReg->rF4) - -#define SAVE_D1 (BaseReg->rD1) -#define SAVE_D2 (BaseReg->rD2) - -#define SAVE_L1 (BaseReg->rL1) - -/* ----------------------------------------------------------------------------- - * Emit the GCC-specific register declarations for each machine - * register being used. If any STG register isn't mapped to a machine - * register, then map it to an offset from BaseReg. - * - * First, the general purpose registers. The idea is, if a particular - * general-purpose STG register can't be mapped to a real machine - * register, it won't be used at all. Instead, we'll use the stack. - * - * This is an improvement on the way things used to be done, when all - * registers were mapped to locations in the register table, and stuff - * was being shifted from the stack to the register table and back - * again for no good reason (on register-poor architectures). - */ - -/* define NO_REGS to omit register declarations - used in RTS C code - * that needs all the STG definitions but not the global register - * settings. - */ -#define GLOBAL_REG_DECL(type,name,reg) register type name REG(reg); - -#if defined(REG_R1) && !defined(NO_GLOBAL_REG_DECLS) -GLOBAL_REG_DECL(StgUnion,R1,REG_R1) -#else -# define R1 (BaseReg->rR1) -#endif - -#if defined(REG_R2) && !defined(NO_GLOBAL_REG_DECLS) -GLOBAL_REG_DECL(StgUnion,R2,REG_R2) -#else -# define R2 (BaseReg->rR2) -#endif - -#if defined(REG_R3) && !defined(NO_GLOBAL_REG_DECLS) -GLOBAL_REG_DECL(StgUnion,R3,REG_R3) -#else -# define R3 (BaseReg->rR3) -#endif - -#if defined(REG_R4) && !defined(NO_GLOBAL_REG_DECLS) -GLOBAL_REG_DECL(StgUnion,R4,REG_R4) -#else -# define R4 (BaseReg->rR4) -#endif - -#if defined(REG_R5) && !defined(NO_GLOBAL_REG_DECLS) -GLOBAL_REG_DECL(StgUnion,R5,REG_R5) -#else -# define R5 (BaseReg->rR5) -#endif - -#if defined(REG_R6) && !defined(NO_GLOBAL_REG_DECLS) -GLOBAL_REG_DECL(StgUnion,R6,REG_R6) -#else -# define R6 (BaseReg->rR6) -#endif - -#if defined(REG_R7) && !defined(NO_GLOBAL_REG_DECLS) -GLOBAL_REG_DECL(StgUnion,R7,REG_R7) -#else -# define R7 (BaseReg->rR7) -#endif - -#if defined(REG_R8) && !defined(NO_GLOBAL_REG_DECLS) -GLOBAL_REG_DECL(StgUnion,R8,REG_R8) -#else -# define R8 (BaseReg->rR8) -#endif - -#if defined(REG_R9) && !defined(NO_GLOBAL_REG_DECLS) -GLOBAL_REG_DECL(StgUnion,R9,REG_R9) -#else -# define R9 (BaseReg->rR9) -#endif - -#if defined(REG_R10) && !defined(NO_GLOBAL_REG_DECLS) -GLOBAL_REG_DECL(StgUnion,R10,REG_R10) -#else -# define R10 (BaseReg->rR10) -#endif - -#if defined(REG_F1) && !defined(NO_GLOBAL_REG_DECLS) -GLOBAL_REG_DECL(StgFloat,F1,REG_F1) -#else -#define F1 (BaseReg->rF1) -#endif - -#if defined(REG_F2) && !defined(NO_GLOBAL_REG_DECLS) -GLOBAL_REG_DECL(StgFloat,F2,REG_F2) -#else -#define F2 (BaseReg->rF2) -#endif - -#if defined(REG_F3) && !defined(NO_GLOBAL_REG_DECLS) -GLOBAL_REG_DECL(StgFloat,F3,REG_F3) -#else -#define F3 (BaseReg->rF3) -#endif - -#if defined(REG_F4) && !defined(NO_GLOBAL_REG_DECLS) -GLOBAL_REG_DECL(StgFloat,F4,REG_F4) -#else -#define F4 (BaseReg->rF4) -#endif - -#if defined(REG_D1) && !defined(NO_GLOBAL_REG_DECLS) -GLOBAL_REG_DECL(StgDouble,D1,REG_D1) -#else -#define D1 (BaseReg->rD1) -#endif - -#if defined(REG_D2) && !defined(NO_GLOBAL_REG_DECLS) -GLOBAL_REG_DECL(StgDouble,D2,REG_D2) -#else -#define D2 (BaseReg->rD2) -#endif - -#if defined(REG_L1) && !defined(NO_GLOBAL_REG_DECLS) -GLOBAL_REG_DECL(StgWord64,L1,REG_L1) -#else -#define L1 (BaseReg->rL1) -#endif - -/* - * If BaseReg isn't mapped to a machine register, just use the global - * address of the current register table (CurrentRegTable in - * concurrent Haskell, MainRegTable otherwise). - */ - -/* A capability is a combination of a FunTable and a RegTable. In STG - * code, BaseReg normally points to the RegTable portion of this - * structure, so that we can index both forwards and backwards to take - * advantage of shorter instruction forms on some archs (eg. x86). - * This is a cut-down version of the Capability structure; the full - * version is defined in Capability.h. - */ -struct PartCapability_ { - StgFunTable f; - StgRegTable r; -}; - -/* No such thing as a MainCapability under THREADED_RTS - each thread must have - * its own Capability. - */ -#if IN_STG_CODE && !defined(THREADED_RTS) -extern W_ MainCapability[]; -#endif - -/* - * Assigning to BaseReg (the ASSIGN_BaseReg macro): this happens on - * return from a "safe" foreign call, when the thread might be running - * on a new Capability. Obviously if BaseReg is not a register, then - * we are restricted to a single Capability (this invariant is enforced - * in Capability.c:initCapabilities), and assigning to BaseReg can be omitted. - */ - -#if defined(REG_Base) && !defined(NO_GLOBAL_REG_DECLS) -GLOBAL_REG_DECL(StgRegTable *,BaseReg,REG_Base) -#define ASSIGN_BaseReg(e) (BaseReg = (e)) -#else -#ifdef THREADED_RTS -#error BaseReg must be in a register for THREADED_RTS -#endif -#define BaseReg (&((struct PartCapability_ *)MainCapability)->r) -#define ASSIGN_BaseReg(e) (e) -#endif - -#if defined(REG_Sp) && !defined(NO_GLOBAL_REG_DECLS) -GLOBAL_REG_DECL(P_,Sp,REG_Sp) -#else -#define Sp (BaseReg->rSp) -#endif - -#if defined(REG_SpLim) && !defined(NO_GLOBAL_REG_DECLS) -GLOBAL_REG_DECL(P_,SpLim,REG_SpLim) -#else -#define SpLim (BaseReg->rSpLim) -#endif - -#if defined(REG_Hp) && !defined(NO_GLOBAL_REG_DECLS) -GLOBAL_REG_DECL(P_,Hp,REG_Hp) -#else -#define Hp (BaseReg->rHp) -#endif - -#if defined(REG_HpLim) && !defined(NO_GLOBAL_REG_DECLS) -GLOBAL_REG_DECL(P_,HpLim,REG_HpLim) -#else -#define HpLim (BaseReg->rHpLim) -#endif - -#if defined(REG_CurrentTSO) && !defined(NO_GLOBAL_REG_DECLS) -GLOBAL_REG_DECL(struct _StgTSO *,CurrentTSO,REG_CurrentTSO) -#else -#define CurrentTSO (BaseReg->rCurrentTSO) -#endif - -#if defined(REG_CurrentNursery) && !defined(NO_GLOBAL_REG_DECLS) -GLOBAL_REG_DECL(bdescr *,CurrentNursery,REG_CurrentNursery) -#else -#define CurrentNursery (BaseReg->rCurrentNursery) -#endif - -#if defined(REG_HpAlloc) && !defined(NO_GLOBAL_REG_DECLS) -GLOBAL_REG_DECL(bdescr *,HpAlloc,REG_HpAlloc) -#else -#define HpAlloc (BaseReg->rHpAlloc) -#endif - -#if defined(REG_SparkHd) && !defined(NO_GLOBAL_REG_DECLS) -GLOBAL_REG_DECL(bdescr *,SparkHd,REG_SparkHd) -#else -#define SparkHd (BaseReg->rSparks.hd) -#endif - -#if defined(REG_SparkTl) && !defined(NO_GLOBAL_REG_DECLS) -GLOBAL_REG_DECL(bdescr *,SparkTl,REG_SparkTl) -#else -#define SparkTl (BaseReg->rSparks.tl) -#endif - -#if defined(REG_SparkBase) && !defined(NO_GLOBAL_REG_DECLS) -GLOBAL_REG_DECL(bdescr *,SparkBase,REG_SparkBase) -#else -#define SparkBase (BaseReg->rSparks.base) -#endif - -#if defined(REG_SparkLim) && !defined(NO_GLOBAL_REG_DECLS) -GLOBAL_REG_DECL(bdescr *,SparkLim,REG_SparkLim) -#else -#define SparkLim (BaseReg->rSparks.lim) -#endif - -/* ----------------------------------------------------------------------------- - Get absolute function pointers from the register table, to save - code space. On x86, - - jmp *-12(%ebx) - - is shorter than - - jmp absolute_address - - as long as the offset is within the range of a signed byte - (-128..+127). So we pick some common absolute_addresses and put - them in the register table. As a bonus, linking time should also - be reduced. - - Other possible candidates in order of importance: - - stg_upd_frame_info - stg_CAF_BLACKHOLE_info - stg_IND_STATIC_info - - anything else probably isn't worth the effort. - - -------------------------------------------------------------------------- */ - - -#define FunReg ((StgFunTable *)((void *)BaseReg - sizeof(StgFunTable))) - -#define stg_gc_enter_1 (FunReg->stgGCEnter1) -#define stg_gc_fun (FunReg->stgGCFun) - -/* ----------------------------------------------------------------------------- - For any registers which are denoted "caller-saves" by the C calling - convention, we have to emit code to save and restore them across C - calls. - -------------------------------------------------------------------------- */ - -#ifdef CALLER_SAVES_R1 -#define CALLER_SAVE_R1 SAVE_R1 = R1; -#define CALLER_RESTORE_R1 R1 = SAVE_R1; -#else -#define CALLER_SAVE_R1 /* nothing */ -#define CALLER_RESTORE_R1 /* nothing */ -#endif - -#ifdef CALLER_SAVES_R2 -#define CALLER_SAVE_R2 SAVE_R2 = R2; -#define CALLER_RESTORE_R2 R2 = SAVE_R2; -#else -#define CALLER_SAVE_R2 /* nothing */ -#define CALLER_RESTORE_R2 /* nothing */ -#endif - -#ifdef CALLER_SAVES_R3 -#define CALLER_SAVE_R3 SAVE_R3 = R3; -#define CALLER_RESTORE_R3 R3 = SAVE_R3; -#else -#define CALLER_SAVE_R3 /* nothing */ -#define CALLER_RESTORE_R3 /* nothing */ -#endif - -#ifdef CALLER_SAVES_R4 -#define CALLER_SAVE_R4 SAVE_R4 = R4; -#define CALLER_RESTORE_R4 R4 = SAVE_R4; -#else -#define CALLER_SAVE_R4 /* nothing */ -#define CALLER_RESTORE_R4 /* nothing */ -#endif - -#ifdef CALLER_SAVES_R5 -#define CALLER_SAVE_R5 SAVE_R5 = R5; -#define CALLER_RESTORE_R5 R5 = SAVE_R5; -#else -#define CALLER_SAVE_R5 /* nothing */ -#define CALLER_RESTORE_R5 /* nothing */ -#endif - -#ifdef CALLER_SAVES_R6 -#define CALLER_SAVE_R6 SAVE_R6 = R6; -#define CALLER_RESTORE_R6 R6 = SAVE_R6; -#else -#define CALLER_SAVE_R6 /* nothing */ -#define CALLER_RESTORE_R6 /* nothing */ -#endif - -#ifdef CALLER_SAVES_R7 -#define CALLER_SAVE_R7 SAVE_R7 = R7; -#define CALLER_RESTORE_R7 R7 = SAVE_R7; -#else -#define CALLER_SAVE_R7 /* nothing */ -#define CALLER_RESTORE_R7 /* nothing */ -#endif - -#ifdef CALLER_SAVES_R8 -#define CALLER_SAVE_R8 SAVE_R8 = R8; -#define CALLER_RESTORE_R8 R8 = SAVE_R8; -#else -#define CALLER_SAVE_R8 /* nothing */ -#define CALLER_RESTORE_R8 /* nothing */ -#endif - -#ifdef CALLER_SAVES_R9 -#define CALLER_SAVE_R9 SAVE_R9 = R9; -#define CALLER_RESTORE_R9 R9 = SAVE_R9; -#else -#define CALLER_SAVE_R9 /* nothing */ -#define CALLER_RESTORE_R9 /* nothing */ -#endif - -#ifdef CALLER_SAVES_R10 -#define CALLER_SAVE_R10 SAVE_R10 = R10; -#define CALLER_RESTORE_R10 R10 = SAVE_R10; -#else -#define CALLER_SAVE_R10 /* nothing */ -#define CALLER_RESTORE_R10 /* nothing */ -#endif - -#ifdef CALLER_SAVES_F1 -#define CALLER_SAVE_F1 SAVE_F1 = F1; -#define CALLER_RESTORE_F1 F1 = SAVE_F1; -#else -#define CALLER_SAVE_F1 /* nothing */ -#define CALLER_RESTORE_F1 /* nothing */ -#endif - -#ifdef CALLER_SAVES_F2 -#define CALLER_SAVE_F2 SAVE_F2 = F2; -#define CALLER_RESTORE_F2 F2 = SAVE_F2; -#else -#define CALLER_SAVE_F2 /* nothing */ -#define CALLER_RESTORE_F2 /* nothing */ -#endif - -#ifdef CALLER_SAVES_F3 -#define CALLER_SAVE_F3 SAVE_F3 = F3; -#define CALLER_RESTORE_F3 F3 = SAVE_F3; -#else -#define CALLER_SAVE_F3 /* nothing */ -#define CALLER_RESTORE_F3 /* nothing */ -#endif - -#ifdef CALLER_SAVES_F4 -#define CALLER_SAVE_F4 SAVE_F4 = F4; -#define CALLER_RESTORE_F4 F4 = SAVE_F4; -#else -#define CALLER_SAVE_F4 /* nothing */ -#define CALLER_RESTORE_F4 /* nothing */ -#endif - -#ifdef CALLER_SAVES_D1 -#define CALLER_SAVE_D1 SAVE_D1 = D1; -#define CALLER_RESTORE_D1 D1 = SAVE_D1; -#else -#define CALLER_SAVE_D1 /* nothing */ -#define CALLER_RESTORE_D1 /* nothing */ -#endif - -#ifdef CALLER_SAVES_D2 -#define CALLER_SAVE_D2 SAVE_D2 = D2; -#define CALLER_RESTORE_D2 D2 = SAVE_D2; -#else -#define CALLER_SAVE_D2 /* nothing */ -#define CALLER_RESTORE_D2 /* nothing */ -#endif - -#ifdef CALLER_SAVES_L1 -#define CALLER_SAVE_L1 SAVE_L1 = L1; -#define CALLER_RESTORE_L1 L1 = SAVE_L1; -#else -#define CALLER_SAVE_L1 /* nothing */ -#define CALLER_RESTORE_L1 /* nothing */ -#endif - -#ifdef CALLER_SAVES_Sp -#define CALLER_SAVE_Sp SAVE_Sp = Sp; -#define CALLER_RESTORE_Sp Sp = SAVE_Sp; -#else -#define CALLER_SAVE_Sp /* nothing */ -#define CALLER_RESTORE_Sp /* nothing */ -#endif - -#ifdef CALLER_SAVES_SpLim -#define CALLER_SAVE_SpLim SAVE_SpLim = SpLim; -#define CALLER_RESTORE_SpLim SpLim = SAVE_SpLim; -#else -#define CALLER_SAVE_SpLim /* nothing */ -#define CALLER_RESTORE_SpLim /* nothing */ -#endif - -#ifdef CALLER_SAVES_Hp -#define CALLER_SAVE_Hp SAVE_Hp = Hp; -#define CALLER_RESTORE_Hp Hp = SAVE_Hp; -#else -#define CALLER_SAVE_Hp /* nothing */ -#define CALLER_RESTORE_Hp /* nothing */ -#endif - -#ifdef CALLER_SAVES_HpLim -#define CALLER_SAVE_HpLim SAVE_HpLim = HpLim; -#define CALLER_RESTORE_HpLim HpLim = SAVE_HpLim; -#else -#define CALLER_SAVE_HpLim /* nothing */ -#define CALLER_RESTORE_HpLim /* nothing */ -#endif - -#ifdef CALLER_SAVES_Base -#ifdef THREADED_RTS -#error "Can't have caller-saved BaseReg with THREADED_RTS" -#endif -#define CALLER_SAVE_Base /* nothing */ -#define CALLER_RESTORE_Base BaseReg = &MainRegTable; -#else -#define CALLER_SAVE_Base /* nothing */ -#define CALLER_RESTORE_Base /* nothing */ -#endif - -#ifdef CALLER_SAVES_CurrentTSO -#define CALLER_SAVE_CurrentTSO SAVE_CurrentTSO = CurrentTSO; -#define CALLER_RESTORE_CurrentTSO CurrentTSO = SAVE_CurrentTSO; -#else -#define CALLER_SAVE_CurrentTSO /* nothing */ -#define CALLER_RESTORE_CurrentTSO /* nothing */ -#endif - -#ifdef CALLER_SAVES_CurrentNursery -#define CALLER_SAVE_CurrentNursery SAVE_CurrentNursery = CurrentNursery; -#define CALLER_RESTORE_CurrentNursery CurrentNursery = SAVE_CurrentNursery; -#else -#define CALLER_SAVE_CurrentNursery /* nothing */ -#define CALLER_RESTORE_CurrentNursery /* nothing */ -#endif - -#ifdef CALLER_SAVES_HpAlloc -#define CALLER_SAVE_HpAlloc SAVE_HpAlloc = HpAlloc; -#define CALLER_RESTORE_HpAlloc HpAlloc = SAVE_HpAlloc; -#else -#define CALLER_SAVE_HpAlloc /* nothing */ -#define CALLER_RESTORE_HpAlloc /* nothing */ -#endif - -#ifdef CALLER_SAVES_SparkHd -#define CALLER_SAVE_SparkHd SAVE_SparkHd = SparkHd; -#define CALLER_RESTORE_SparkHd SparkHd = SAVE_SparkHd; -#else -#define CALLER_SAVE_SparkHd /* nothing */ -#define CALLER_RESTORE_SparkHd /* nothing */ -#endif - -#ifdef CALLER_SAVES_SparkTl -#define CALLER_SAVE_SparkTl SAVE_SparkTl = SparkTl; -#define CALLER_RESTORE_SparkTl SparkTl = SAVE_SparkTl; -#else -#define CALLER_SAVE_SparkTl /* nothing */ -#define CALLER_RESTORE_SparkTl /* nothing */ -#endif - -#ifdef CALLER_SAVES_SparkBase -#define CALLER_SAVE_SparkBase SAVE_SparkBase = SparkBase; -#define CALLER_RESTORE_SparkBase SparkBase = SAVE_SparkBase; -#else -#define CALLER_SAVE_SparkBase /* nothing */ -#define CALLER_RESTORE_SparkBase /* nothing */ -#endif - -#ifdef CALLER_SAVES_SparkLim -#define CALLER_SAVE_SparkLim SAVE_SparkLim = SparkLim; -#define CALLER_RESTORE_SparkLim SparkLim = SAVE_SparkLim; -#else -#define CALLER_SAVE_SparkLim /* nothing */ -#define CALLER_RESTORE_SparkLim /* nothing */ -#endif - -#endif /* IN_STG_CODE */ - -/* ---------------------------------------------------------------------------- - Handy bunches of saves/restores - ------------------------------------------------------------------------ */ - -#if IN_STG_CODE - -#define CALLER_SAVE_USER \ - CALLER_SAVE_R1 \ - CALLER_SAVE_R2 \ - CALLER_SAVE_R3 \ - CALLER_SAVE_R4 \ - CALLER_SAVE_R5 \ - CALLER_SAVE_R6 \ - CALLER_SAVE_R7 \ - CALLER_SAVE_R8 \ - CALLER_SAVE_F1 \ - CALLER_SAVE_F2 \ - CALLER_SAVE_F3 \ - CALLER_SAVE_F4 \ - CALLER_SAVE_D1 \ - CALLER_SAVE_D2 \ - CALLER_SAVE_L1 - - /* Save Base last, since the others may - be addressed relative to it */ -#define CALLER_SAVE_SYSTEM \ - CALLER_SAVE_Sp \ - CALLER_SAVE_SpLim \ - CALLER_SAVE_Hp \ - CALLER_SAVE_HpLim \ - CALLER_SAVE_CurrentTSO \ - CALLER_SAVE_CurrentNursery \ - CALLER_SAVE_SparkHd \ - CALLER_SAVE_SparkTl \ - CALLER_SAVE_SparkBase \ - CALLER_SAVE_SparkLim \ - CALLER_SAVE_Base - -#define CALLER_RESTORE_USER \ - CALLER_RESTORE_R1 \ - CALLER_RESTORE_R2 \ - CALLER_RESTORE_R3 \ - CALLER_RESTORE_R4 \ - CALLER_RESTORE_R5 \ - CALLER_RESTORE_R6 \ - CALLER_RESTORE_R7 \ - CALLER_RESTORE_R8 \ - CALLER_RESTORE_F1 \ - CALLER_RESTORE_F2 \ - CALLER_RESTORE_F3 \ - CALLER_RESTORE_F4 \ - CALLER_RESTORE_D1 \ - CALLER_RESTORE_D2 \ - CALLER_RESTORE_L1 - - /* Restore Base first, since the others may - be addressed relative to it */ -#define CALLER_RESTORE_SYSTEM \ - CALLER_RESTORE_Base \ - CALLER_RESTORE_Sp \ - CALLER_RESTORE_SpLim \ - CALLER_RESTORE_Hp \ - CALLER_RESTORE_HpLim \ - CALLER_RESTORE_CurrentTSO \ - CALLER_RESTORE_CurrentNursery \ - CALLER_RESTORE_SparkHd \ - CALLER_RESTORE_SparkTl \ - CALLER_RESTORE_SparkBase \ - CALLER_RESTORE_SparkLim - -#else /* not IN_STG_CODE */ - -#define CALLER_SAVE_USER /* nothing */ -#define CALLER_SAVE_SYSTEM /* nothing */ -#define CALLER_RESTORE_USER /* nothing */ -#define CALLER_RESTORE_SYSTEM /* nothing */ - -#endif /* IN_STG_CODE */ -#define CALLER_SAVE_ALL \ - CALLER_SAVE_SYSTEM \ - CALLER_SAVE_USER - -#define CALLER_RESTORE_ALL \ - CALLER_RESTORE_SYSTEM \ - CALLER_RESTORE_USER - -#endif /* REGS_H */ |