675 lines
25 KiB
C++
675 lines
25 KiB
C++
/*
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AngelCode Scripting Library
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Copyright (c) 2003-2015 Andreas Jonsson
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any
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damages arising from the use of this software.
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Permission is granted to anyone to use this software for any
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purpose, including commercial applications, and to alter it and
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redistribute it freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you
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must not claim that you wrote the original software. If you use
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this software in a product, an acknowledgment in the product
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documentation would be appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and
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must not be misrepresented as being the original software.
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3. This notice may not be removed or altered from any source
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distribution.
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The original version of this library can be located at:
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http://www.angelcode.com/angelscript/
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Andreas Jonsson
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andreas@angelcode.com
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*/
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//
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// as_callfunc_ppc.cpp
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//
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// These functions handle the actual calling of system functions
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//
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// This version is PPC specific
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//
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#include <stdio.h>
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#include "as_config.h"
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#ifndef AS_MAX_PORTABILITY
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#ifdef AS_PPC
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#include "as_callfunc.h"
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#include "as_scriptengine.h"
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#include "as_texts.h"
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#include "as_tokendef.h"
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#include "as_context.h"
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#include <stdlib.h>
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BEGIN_AS_NAMESPACE
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// This part was originally written by Pecan Heber, June 2006, for
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// use on MacOS X with 32bit PPC processor. He based the code on the
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// code in as_callfunc_sh4.cpp
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#define AS_PPC_MAX_ARGS 32
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// The array used to send values to the correct places.
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// Contains a byte of argTypes to indicate the register tYpe to load
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// or zero if end of arguments
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// The +1 is for when CallThis (object methods) is used
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// Extra +1 when returning in memory
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// Extra +1 in ppcArgsType to ensure zero end-of-args marker
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// TODO: multithread: We need to remove these global variables for thread-safety
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enum argTypes { ppcENDARG, ppcINTARG, ppcFLOATARG, ppcDOUBLEARG };
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static asDWORD ppcArgs[2*AS_PPC_MAX_ARGS + 1 + 1];
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// Using extern "C" because we use this symbol name in the assembly code
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extern "C"
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{
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static asBYTE ppcArgsType[2*AS_PPC_MAX_ARGS + 1 + 1 + 1];
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}
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// NOTE: these values are for PowerPC 32 bit.
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#define PPC_LINKAGE_SIZE (24) // how big the PPC linkage area is in a stack frame
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#define PPC_NUM_REGSTORE (9) // how many registers of the PPC we need to store/restore for ppcFunc()
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#define PPC_REGSTORE_SIZE (4*PPC_NUM_REGSTORE) // how many bytes are required for register store/restore
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#define EXTRA_STACK_SIZE (PPC_LINKAGE_SIZE + PPC_REGSTORE_SIZE) // memory required, not including parameters, for the stack frame
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#define PPC_STACK_SIZE(numParams) (-( ( ((((numParams)<8)?8:(numParams))<<2) + EXTRA_STACK_SIZE + 15 ) & ~15 )) // calculates the total stack size needed for ppcFunc64, must pad to 16bytes
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// Loads all data into the correct places and calls the function.
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// ppcArgsType is an array containing a byte type (enum argTypes) for each argument.
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// stackArgSize is the size in bytes for how much data to put on the stack frame
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extern "C" asQWORD ppcFunc(const asDWORD* argsPtr, int StackArgSize, asDWORD func);
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asm(" .text\n"
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" .align 2\n" // align the code to 1 << 2 = 4 bytes
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" .globl _ppcFunc\n"
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"_ppcFunc:\n"
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// We're receiving the following parameters
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// r3 : argsPtr
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// r4 : StackArgSize
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// r5 : func
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// The following registers are used through out the function
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// r31 : the address of the label address, as reference for all other labels
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// r30 : temporary variable
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// r29 : arg list pointer
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// r28 : number of FPR registers used by the parameters
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// r27 : the function pointer that will be called
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// r26 : the location of the parameters for the call
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// r25 : arg type list pointer
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// r24 : temporary variable
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// r23 : number of GPR registers used by the parameters
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// r1 : this is stack pointer
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// r0 : temporary variable
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// f0 : temporary variable
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// We need to store some of the registers for restoral before returning to caller
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// lr - always stored in 8(r1) - this is the return address
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// cr - not required to be stored, but if it is, its place is in 4(r1) - this is the condition register
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// r1 - always stored in 0(r1) - this is the stack pointer
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// r11
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// r13 to r31
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// f14 to f31
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// Store register values and setup our stack frame
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" mflr r0 \n" // move the return address into r0
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" stw r0, 8(r1) \n" // Store the return address on the stack
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" stmw r23, -36(r1) \n" // Store registers r23 to r31 on the stack
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" stwux r1, r1, r4 \n" // Increase the stack with the needed space and store the original value in the destination
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// Obtain an address that we'll use as our position of reference when obtaining addresses of other labels
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" bl address \n"
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"address: \n"
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" mflr r31 \n"
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// initial registers for the function
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" mr r29, r3 \n" // (r29) args list
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" mr r27, r5 \n" // load the function pointer to call. func actually holds the pointer to our function
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" addi r26, r1, 24 \n" // setup the pointer to the parameter area to the function we're going to call
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" sub r0, r0, r0 \n" // zero out r0
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" mr r23, r0 \n" // zero out r23, which holds the number of used GPR registers
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" mr r28, r0 \n" // zero our r22, which holds the number of used float registers
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// load the global ppcArgsType which holds the types of arguments for each argument
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" addis r25, r31, ha16(_ppcArgsType - address) \n" // load the upper 16 bits of the address to r25
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" la r25, lo16(_ppcArgsType - address)(r25) \n" // load the lower 16 bits of the address to r25
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" subi r25, r25, 1 \n" // since we increment r25 on its use, we'll pre-decrement it
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// loop through the arguments
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"ppcNextArg: \n"
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" addi r25, r25, 1 \n" // increment r25, our arg type pointer
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// switch based on the current argument type (0:end, 1:int, 2:float 3:double)
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" lbz r24, 0(r25) \n" // load the current argument type (it's a byte)
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" mulli r24, r24, 4 \n" // our jump table has 4 bytes per case (1 instruction)
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" addis r30, r31, ha16(ppcTypeSwitch - address) \n" // load the address of the jump table for the switch
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" la r30, lo16(ppcTypeSwitch - address)(r30) \n"
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" add r0, r30, r24 \n" // offset by our argument type
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" mtctr r0 \n" // load the jump address into CTR
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" bctr \n" // jump into the jump table/switch
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" nop \n"
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// the jump table/switch based on the current argument type
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"ppcTypeSwitch: \n"
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" b ppcArgsEnd \n"
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" b ppcArgIsInteger \n"
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" b ppcArgIsFloat \n"
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" b ppcArgIsDouble \n"
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// when we get here we have finished processing all the arguments
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// everything is ready to go to call the function
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"ppcArgsEnd: \n"
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" mtctr r27 \n" // the function pointer is stored in r27, load that into CTR
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" bctrl \n" // call the function. We have to do it this way so that the LR gets the proper
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" nop \n" // return value (the next instruction below). So we have to branch from CTR instead of LR.
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// Restore registers and caller's stack frame, then return to caller
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" lwz r1, 0(r1) \n" // restore the caller's stack pointer
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" lwz r0, 8(r1) \n" // load in the caller's LR
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" mtlr r0 \n" // restore the caller's LR
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" lmw r23, -36(r1) \n" // restore registers r23 to r31 from the stack
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" blr \n" // return back to the caller
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" nop \n"
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// Integer argument (GPR register)
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"ppcArgIsInteger: \n"
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" addis r30, r31, ha16(ppcLoadIntReg - address) \n" // load the address to the jump table for integer registers
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" la r30, lo16(ppcLoadIntReg - address)(r30) \n"
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" mulli r0, r23, 8 \n" // each item in the jump table is 2 instructions (8 bytes)
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" add r0, r0, r30 \n" // calculate ppcLoadIntReg[numUsedGPRRegs]
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" lwz r30, 0(r29) \n" // load the next argument from the argument list into r30
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" cmpwi r23, 8 \n" // we can only load GPR3 through GPR10 (8 registers)
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" bgt ppcLoadIntRegUpd \n" // if we're beyond 8 GPR registers, we're in the stack, go there
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" mtctr r0 \n" // load the address of our ppcLoadIntReg jump table (we're below 8 GPR registers)
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" bctr \n" // load the argument into a GPR register
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" nop \n"
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// jump table for GPR registers, for the first 8 GPR arguments
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"ppcLoadIntReg: \n"
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" mr r3, r30 \n" // arg0 (to r3)
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" b ppcLoadIntRegUpd \n"
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" mr r4, r30 \n" // arg1 (to r4)
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" b ppcLoadIntRegUpd \n"
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" mr r5, r30 \n" // arg2 (to r5)
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" b ppcLoadIntRegUpd \n"
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" mr r6, r30 \n" // arg3 (to r6)
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" b ppcLoadIntRegUpd \n"
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" mr r7, r30 \n" // arg4 (to r7)
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" b ppcLoadIntRegUpd \n"
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" mr r8, r30 \n" // arg5 (to r8)
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" b ppcLoadIntRegUpd \n"
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" mr r9, r30 \n" // arg6 (to r9)
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" b ppcLoadIntRegUpd \n"
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" mr r10, r30 \n" // arg7 (to r10)
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" b ppcLoadIntRegUpd \n"
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// all GPR arguments still go on the stack
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"ppcLoadIntRegUpd: \n"
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" stw r30, 0(r26) \n" // store the argument into the next slot on the stack's argument list
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" addi r23, r23, 1 \n" // count a used GPR register
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" addi r29, r29, 4 \n" // move to the next argument on the list
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" addi r26, r26, 4 \n" // adjust our argument stack pointer for the next
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" b ppcNextArg \n" // next argument
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// single Float argument
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"ppcArgIsFloat:\n"
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" addis r30, r31, ha16(ppcLoadFloatReg - address) \n" // get the base address of the float register jump table
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" la r30, lo16(ppcLoadFloatReg - address)(r30) \n"
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" mulli r0, r28, 8 \n" // each jump table entry is 8 bytes
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" add r0, r0, r30 \n" // calculate the offset to ppcLoadFloatReg[numUsedFloatReg]
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" lfs f0, 0(r29) \n" // load the next argument as a float into f0
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" cmpwi r28, 13 \n" // can't load more than 13 float/double registers
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" bgt ppcLoadFloatRegUpd \n" // if we're beyond 13 registers, just fall to inserting into the stack
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" mtctr r0 \n" // jump into the float jump table
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" bctr \n"
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" nop \n"
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// jump table for float registers, for the first 13 float arguments
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"ppcLoadFloatReg: \n"
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" fmr f1, f0 \n" // arg0 (f1)
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" b ppcLoadFloatRegUpd \n"
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" fmr f2, f0 \n" // arg1 (f2)
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" b ppcLoadFloatRegUpd \n"
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" fmr f3, f0 \n" // arg2 (f3)
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" b ppcLoadFloatRegUpd \n"
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" fmr f4, f0 \n" // arg3 (f4)
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" b ppcLoadFloatRegUpd \n"
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" fmr f5, f0 \n" // arg4 (f5)
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" b ppcLoadFloatRegUpd \n"
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" fmr f6, f0 \n" // arg5 (f6)
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" b ppcLoadFloatRegUpd \n"
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" fmr f7, f0 \n" // arg6 (f7)
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" b ppcLoadFloatRegUpd \n"
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" fmr f8, f0 \n" // arg7 (f8)
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" b ppcLoadFloatRegUpd \n"
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" fmr f9, f0 \n" // arg8 (f9)
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" b ppcLoadFloatRegUpd \n"
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" fmr f10, f0 \n" // arg9 (f10)
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" b ppcLoadFloatRegUpd \n"
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" fmr f11, f0 \n" // arg10 (f11)
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" b ppcLoadFloatRegUpd \n"
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" fmr f12, f0 \n" // arg11 (f12)
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" b ppcLoadFloatRegUpd \n"
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" fmr f13, f0 \n" // arg12 (f13)
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" b ppcLoadFloatRegUpd \n"
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" nop \n"
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// all float arguments still go on the stack
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"ppcLoadFloatRegUpd: \n"
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" stfs f0, 0(r26) \n" // store, as a single float, f0 (current argument) on to the stack argument list
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" addi r23, r23, 1 \n" // a float register eats up a GPR register
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" addi r28, r28, 1 \n" // ...and, of course, a float register
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" addi r29, r29, 4 \n" // move to the next argument in the list
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" addi r26, r26, 4 \n" // move to the next stack slot
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" b ppcNextArg \n" // on to the next argument
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" nop \n"
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// double Float argument
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"ppcArgIsDouble: \n"
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" addis r30, r31, ha16(ppcLoadDoubleReg - address) \n" // load the base address of the jump table for double registers
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" la r30, lo16(ppcLoadDoubleReg - address)(r30) \n"
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" mulli r0, r28, 8 \n" // each slot of the jump table is 8 bytes
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" add r0, r0, r30 \n" // calculate ppcLoadDoubleReg[numUsedFloatReg]
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" lfd f0, 0(r29) \n" // load the next argument, as a double float, into f0
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" cmpwi r28, 13 \n" // the first 13 floats must go into float registers also
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" bgt ppcLoadDoubleRegUpd \n" // if we're beyond 13, then just put on to the stack
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" mtctr r0 \n" // we're under 13, first load our register
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" bctr \n" // jump into the jump table
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" nop \n"
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// jump table for float registers, for the first 13 float arguments
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"ppcLoadDoubleReg: \n"
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" fmr f1, f0 \n" // arg0 (f1)
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" b ppcLoadDoubleRegUpd \n"
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" fmr f2, f0 \n" // arg1 (f2)
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" b ppcLoadDoubleRegUpd \n"
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" fmr f3, f0 \n" // arg2 (f3)
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" b ppcLoadDoubleRegUpd \n"
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" fmr f4, f0 \n" // arg3 (f4)
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" b ppcLoadDoubleRegUpd \n"
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" fmr f5, f0 \n" // arg4 (f5)
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" b ppcLoadDoubleRegUpd \n"
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" fmr f6, f0 \n" // arg5 (f6)
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" b ppcLoadDoubleRegUpd \n"
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" fmr f7, f0 \n" // arg6 (f7)
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" b ppcLoadDoubleRegUpd \n"
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" fmr f8, f0 \n" // arg7 (f8)
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" b ppcLoadDoubleRegUpd \n"
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" fmr f9, f0 \n" // arg8 (f9)
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" b ppcLoadDoubleRegUpd \n"
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" fmr f10, f0 \n" // arg9 (f10)
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" b ppcLoadDoubleRegUpd \n"
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" fmr f11, f0 \n" // arg10 (f11)
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" b ppcLoadDoubleRegUpd \n"
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" fmr f12, f0 \n" // arg11 (f12)
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" b ppcLoadDoubleRegUpd \n"
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" fmr f13, f0 \n" // arg12 (f13)
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" b ppcLoadDoubleRegUpd \n"
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" nop \n"
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// all float arguments still go on the stack
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"ppcLoadDoubleRegUpd: \n"
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" stfd f0, 0(r26) \n" // store f0, as a double, into the argument list on the stack
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" addi r23, r23, 2 \n" // a double float eats up two GPRs
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" addi r28, r28, 1 \n" // ...and, of course, a float
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" addi r29, r29, 8 \n" // increment to our next argument we need to process (8 bytes for the 64bit float)
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" addi r26, r26, 8 \n" // increment to the next slot on the argument list on the stack (8 bytes)
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" b ppcNextArg \n" // on to the next argument
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" nop \n"
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);
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asDWORD GetReturnedFloat()
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{
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asDWORD f;
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asm(" stfs f1, %0\n" : "=m"(f));
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return f;
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}
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asQWORD GetReturnedDouble()
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{
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asQWORD f;
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asm(" stfd f1, %0\n" : "=m"(f));
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return f;
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}
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// puts the arguments in the correct place in the stack array. See comments above.
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void stackArgs(const asDWORD *args, const asBYTE *argsType, int& numIntArgs, int& numFloatArgs, int& numDoubleArgs)
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{
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int i;
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int argWordPos = numIntArgs + numFloatArgs + (numDoubleArgs*2);
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int typeOffset = numIntArgs + numFloatArgs + numDoubleArgs;
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int typeIndex;
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for( i = 0, typeIndex = 0; ; i++, typeIndex++ )
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{
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// store the type
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ppcArgsType[typeOffset++] = argsType[typeIndex];
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if( argsType[typeIndex] == ppcENDARG )
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break;
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switch( argsType[typeIndex] )
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{
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case ppcFLOATARG:
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// stow float
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ppcArgs[argWordPos] = args[i]; // it's just a bit copy
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numFloatArgs++;
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argWordPos++; //add one word
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break;
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case ppcDOUBLEARG:
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// stow double
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memcpy( &ppcArgs[argWordPos], &args[i], sizeof(double) ); // we have to do this because of alignment
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numDoubleArgs++;
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argWordPos+=2; //add two words
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i++;//doubles take up 2 argument slots
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break;
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case ppcINTARG:
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// stow register
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ppcArgs[argWordPos] = args[i];
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numIntArgs++;
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argWordPos++;
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break;
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}
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}
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// close off the argument list (if we have max args we won't close it off until here)
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ppcArgsType[typeOffset] = ppcENDARG;
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}
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static asQWORD CallCDeclFunction(const asDWORD* pArgs, const asBYTE *pArgsType, int argSize, asDWORD func, void *retInMemory)
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{
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int baseArgCount = 0;
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if( retInMemory )
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{
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// the first argument is the 'return in memory' pointer
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ppcArgs[0] = (asDWORD)retInMemory;
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ppcArgsType[0] = ppcINTARG;
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ppcArgsType[1] = ppcENDARG;
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baseArgCount = 1;
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}
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// put the arguments in the correct places in the ppcArgs array
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int numTotalArgs = baseArgCount;
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if( argSize > 0 )
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{
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int intArgs = baseArgCount, floatArgs = 0, doubleArgs = 0;
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stackArgs( pArgs, pArgsType, intArgs, floatArgs, doubleArgs );
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numTotalArgs = intArgs + floatArgs + 2*doubleArgs; // doubles occupy two slots
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}
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else
|
|
{
|
|
// no arguments, cap the type list
|
|
ppcArgsType[baseArgCount] = ppcENDARG;
|
|
}
|
|
|
|
// call the function with the arguments
|
|
return ppcFunc( ppcArgs, PPC_STACK_SIZE(numTotalArgs), func );
|
|
}
|
|
|
|
// This function is identical to CallCDeclFunction, with the only difference that
|
|
// the value in the first parameter is the object (unless we are returning in memory)
|
|
static asQWORD CallThisCallFunction(const void *obj, const asDWORD* pArgs, const asBYTE *pArgsType, int argSize, asDWORD func, void *retInMemory )
|
|
{
|
|
int baseArgCount = 0;
|
|
if( retInMemory )
|
|
{
|
|
// the first argument is the 'return in memory' pointer
|
|
ppcArgs[0] = (asDWORD)retInMemory;
|
|
ppcArgsType[0] = ppcINTARG;
|
|
ppcArgsType[1] = ppcENDARG;
|
|
baseArgCount = 1;
|
|
}
|
|
|
|
// the first argument is the 'this' of the object
|
|
ppcArgs[baseArgCount] = (asDWORD)obj;
|
|
ppcArgsType[baseArgCount++] = ppcINTARG;
|
|
ppcArgsType[baseArgCount] = ppcENDARG;
|
|
|
|
// put the arguments in the correct places in the ppcArgs array
|
|
int numTotalArgs = baseArgCount;
|
|
if( argSize > 0 )
|
|
{
|
|
int intArgs = baseArgCount, floatArgs = 0, doubleArgs = 0;
|
|
stackArgs( pArgs, pArgsType, intArgs, floatArgs, doubleArgs );
|
|
numTotalArgs = intArgs + floatArgs + 2*doubleArgs; // doubles occupy two slots
|
|
}
|
|
|
|
// call the function with the arguments
|
|
return ppcFunc( ppcArgs, PPC_STACK_SIZE(numTotalArgs), func);
|
|
}
|
|
|
|
// This function is identical to CallCDeclFunction, with the only difference that
|
|
// the value in the last parameter is the object
|
|
// NOTE: on PPC the order for the args is reversed
|
|
static asQWORD CallThisCallFunction_objLast(const void *obj, const asDWORD* pArgs, const asBYTE *pArgsType, int argSize, asDWORD func, void *retInMemory)
|
|
{
|
|
UNUSED_VAR(argSize);
|
|
int baseArgCount = 0;
|
|
if( retInMemory )
|
|
{
|
|
// the first argument is the 'return in memory' pointer
|
|
ppcArgs[0] = (asDWORD)retInMemory;
|
|
ppcArgsType[0] = ppcINTARG;
|
|
ppcArgsType[1] = ppcENDARG;
|
|
baseArgCount = 1;
|
|
}
|
|
|
|
// stack any of the arguments
|
|
int intArgs = baseArgCount, floatArgs = 0, doubleArgs = 0;
|
|
stackArgs( pArgs, pArgsType, intArgs, floatArgs, doubleArgs );
|
|
int numTotalArgs = intArgs + floatArgs + doubleArgs;
|
|
|
|
// can we fit the object in at the end?
|
|
if( numTotalArgs < AS_PPC_MAX_ARGS )
|
|
{
|
|
// put the object pointer at the end
|
|
int argPos = intArgs + floatArgs + (doubleArgs * 2);
|
|
ppcArgs[argPos] = (asDWORD)obj;
|
|
ppcArgsType[numTotalArgs++] = ppcINTARG;
|
|
ppcArgsType[numTotalArgs] = ppcENDARG;
|
|
}
|
|
|
|
// call the function with the arguments
|
|
return ppcFunc( ppcArgs, PPC_STACK_SIZE(numTotalArgs), func );
|
|
}
|
|
|
|
asQWORD CallSystemFunctionNative(asCContext *context, asCScriptFunction *descr, void *obj, asDWORD *args, void *retPointer, asQWORD &/*retQW2*/, void */*secondObject*/)
|
|
{
|
|
// TODO: PPC does not yet support THISCALL_OBJFIRST/LAST
|
|
|
|
// use a working array of types, we'll configure the final one in stackArgs
|
|
asBYTE argsType[2*AS_PPC_MAX_ARGS + 1 + 1 + 1];
|
|
memset( argsType, 0, sizeof(argsType));
|
|
|
|
asCScriptEngine *engine = context->m_engine;
|
|
asSSystemFunctionInterface *sysFunc = descr->sysFuncIntf;
|
|
|
|
asQWORD retQW = 0;
|
|
void *func = (void*)sysFunc->func;
|
|
int paramSize = sysFunc->paramSize;
|
|
asDWORD *vftable = NULL;
|
|
int a, s;
|
|
|
|
// convert the parameters that are < 4 bytes from little endian to big endian
|
|
int argDwordOffset = 0;
|
|
for( a = 0; a < (int)descr->parameterTypes.GetLength(); a++ )
|
|
{
|
|
int numBytes = descr->parameterTypes[a].GetSizeInMemoryBytes();
|
|
if( numBytes >= 4 || descr->parameterTypes[a].IsReference() || descr->parameterTypes[a].IsObjectHandle() )
|
|
{
|
|
argDwordOffset += descr->parameterTypes[a].GetSizeOnStackDWords();
|
|
continue;
|
|
}
|
|
|
|
// flip
|
|
asASSERT( numBytes == 1 || numBytes == 2 );
|
|
switch( numBytes )
|
|
{
|
|
case 1:
|
|
{
|
|
volatile asBYTE *bPtr = (asBYTE*)ARG_DW(args[argDwordOffset]);
|
|
asBYTE t = bPtr[0];
|
|
bPtr[0] = bPtr[3];
|
|
bPtr[3] = t;
|
|
t = bPtr[1];
|
|
bPtr[1] = bPtr[2];
|
|
bPtr[2] = t;
|
|
}
|
|
break;
|
|
case 2:
|
|
{
|
|
volatile asWORD *wPtr = (asWORD*)ARG_DW(args[argDwordOffset]);
|
|
asWORD t = wPtr[0];
|
|
wPtr[0] = wPtr[1];
|
|
wPtr[1] = t;
|
|
}
|
|
break;
|
|
}
|
|
argDwordOffset++;
|
|
}
|
|
|
|
// mark all float/double/int arguments
|
|
if( !sysFunc->takesObjByVal )
|
|
{
|
|
for( s = 0, a = 0; s < (int)descr->parameterTypes.GetLength(); s++, a++ )
|
|
{
|
|
if( descr->parameterTypes[s].IsFloatType() && !descr->parameterTypes[s].IsReference() )
|
|
{
|
|
argsType[a] = ppcFLOATARG;
|
|
}
|
|
else if( descr->parameterTypes[s].IsDoubleType() && !descr->parameterTypes[s].IsReference() )
|
|
{
|
|
argsType[a] = ppcDOUBLEARG;
|
|
}
|
|
else
|
|
{
|
|
argsType[a] = ppcINTARG;
|
|
if( descr->parameterTypes[s].GetSizeOnStackDWords() == 2 )
|
|
{
|
|
// Add an extra integer argument for the extra size
|
|
a++;
|
|
argsType[a] = ppcINTARG;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
asDWORD paramBuffer[64];
|
|
if( sysFunc->takesObjByVal )
|
|
{
|
|
paramSize = 0;
|
|
int spos = 0;
|
|
int dpos = 1;
|
|
|
|
int a = 0;
|
|
for( asUINT n = 0; n < descr->parameterTypes.GetLength(); n++ )
|
|
{
|
|
if( descr->parameterTypes[n].IsObject() && !descr->parameterTypes[n].IsObjectHandle() && !descr->parameterTypes[n].IsReference() )
|
|
{
|
|
#ifdef COMPLEX_OBJS_PASSED_BY_REF
|
|
if( descr->parameterTypes[n].GetTypeInfo()->flags & COMPLEX_MASK )
|
|
{
|
|
argsType[a++] = ppcINTARG;
|
|
paramBuffer[dpos++] = args[spos++];
|
|
paramSize++;
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
// TODO: Probably have to handle asOBJ_APP_FLOAT as a primitive
|
|
|
|
// Copy the object's memory to the buffer
|
|
memcpy( ¶mBuffer[dpos], *(void**)(args+spos), descr->parameterTypes[n].GetSizeInMemoryBytes() );
|
|
|
|
// Delete the original memory
|
|
engine->CallFree(*(char**)(args+spos) );
|
|
spos++;
|
|
asUINT dwords = descr->parameterTypes[n].GetSizeInMemoryDWords();
|
|
dpos += dwords;
|
|
paramSize += dwords;
|
|
for( asUINT i = 0; i < dwords; i++ )
|
|
argsType[a++] = ppcINTARG;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// Copy the value directly
|
|
paramBuffer[dpos++] = args[spos++];
|
|
if( descr->parameterTypes[n].IsFloatType() && !descr->parameterTypes[n].IsReference() )
|
|
argsType[a++] = ppcFLOATARG;
|
|
else if( descr->parameterTypes[n].IsDoubleType() && !descr->parameterTypes[n].IsReference() )
|
|
argsType[a++] = ppcDOUBLEARG;
|
|
else
|
|
argsType[a++] = ppcINTARG;
|
|
if( descr->parameterTypes[n].GetSizeOnStackDWords() > 1 )
|
|
{
|
|
paramBuffer[dpos++] = args[spos++];
|
|
if( !descr->parameterTypes[n].IsDoubleType() ) // Double already knows it is 2 dwords
|
|
argsType[a++] = ppcINTARG;
|
|
}
|
|
paramSize += descr->parameterTypes[n].GetSizeOnStackDWords();
|
|
}
|
|
}
|
|
|
|
// Keep a free location at the beginning
|
|
args = ¶mBuffer[1];
|
|
}
|
|
|
|
int callConv = sysFunc->callConv;
|
|
switch( callConv )
|
|
{
|
|
case ICC_CDECL:
|
|
case ICC_CDECL_RETURNINMEM:
|
|
case ICC_STDCALL:
|
|
case ICC_STDCALL_RETURNINMEM:
|
|
retQW = CallCDeclFunction( args, argsType, paramSize, (asDWORD)func, retPointer );
|
|
break;
|
|
case ICC_THISCALL:
|
|
case ICC_THISCALL_RETURNINMEM:
|
|
retQW = CallThisCallFunction(obj, args, argsType, paramSize, (asDWORD)func, retPointer );
|
|
break;
|
|
case ICC_VIRTUAL_THISCALL:
|
|
case ICC_VIRTUAL_THISCALL_RETURNINMEM:
|
|
// Get virtual function table from the object pointer
|
|
vftable = *(asDWORD**)obj;
|
|
retQW = CallThisCallFunction( obj, args, argsType, paramSize, vftable[asDWORD(func)>>2], retPointer );
|
|
break;
|
|
case ICC_CDECL_OBJLAST:
|
|
case ICC_CDECL_OBJLAST_RETURNINMEM:
|
|
retQW = CallThisCallFunction_objLast( obj, args, argsType, paramSize, (asDWORD)func, retPointer );
|
|
break;
|
|
case ICC_CDECL_OBJFIRST:
|
|
case ICC_CDECL_OBJFIRST_RETURNINMEM:
|
|
retQW = CallThisCallFunction( obj, args, argsType, paramSize, (asDWORD)func, retPointer );
|
|
break;
|
|
default:
|
|
context->SetInternalException(TXT_INVALID_CALLING_CONVENTION);
|
|
}
|
|
|
|
// If the return is a float value we need to get the value from the FP register
|
|
if( sysFunc->hostReturnFloat )
|
|
{
|
|
if( sysFunc->hostReturnSize == 1 )
|
|
*(asDWORD*)&retQW = GetReturnedFloat();
|
|
else
|
|
retQW = GetReturnedDouble();
|
|
}
|
|
|
|
return retQW;
|
|
}
|
|
|
|
END_AS_NAMESPACE
|
|
|
|
#endif // AS_PPC
|
|
#endif // AS_MAX_PORTABILITY
|
|
|