// File: /workspace/github_cpp_makefile_star2_O2/zerolfx[P]P-Machine/sub.cpp
// Function: Sub::execute(StackMachine*)
void Sub::execute(StackMachine *stack) 
{
	// check if the stack contains at least two entries
	if(stack->fSP < 1)
		throw ExecutionError("instruction sub: requires 2 stackelements to be present.");
		
	switch(fType)
	{
		case integer:
		{
			StackInteger p1;

			// check if the two uppermost stackentries are of type integer
			if(typeid(p1) != typeid(*(stack->fStore[stack->fSP])))
				throw ExecutionError("instruction sub: SP does not point to element of type integer.");
			if(typeid(p1) != typeid(*(stack->fStore[stack->fSP - 1])))
				throw ExecutionError("instruction sub: SP - 1 does not point to element of type integer.");

			break;
		}	
		case real:
		{
			StackReal p1;
			// check if the two uppermost stackentries are of type real
			if(typeid(p1) != typeid(*(stack->fStore[stack->fSP])))
				throw ExecutionError("instruction sub: SP does not point to element of type real.");
			if(typeid(p1) != typeid(*(stack->fStore[stack->fSP - 1])))
				throw ExecutionError("instruction sub: SP - 1 does not point to element of type real.");
			break;
		}
		default:
			cerr << "operation not supported for this type" << endl;
	}
	
	// actual subtraction
	stack->fStore[stack->fSP - 1]->sub(stack->fStore[stack->fSP]);
	
	// SP := SP - 1
	delete stack->fStore[stack->fSP];
	stack->fStore[stack->fSP] = 0;
	stack->fStore.pop_back();
	--stack->fSP;	
	
	// adding cost of this instruction
	stack->fTime.count("sub");

}

// Assembly:
pushq %rbp
movq %rsp, %rbp
pushq %r15
pushq %r14
pushq %rbx
subq $0x38, %rsp
cmpl $0x0, 0xb4(%rsi)
jle 0x1566e
movq %rsi, %rbx
movl 0x8(%rdi), %eax
testl %eax, %eax
je 0x1553f
cmpl $0x1, %eax
jne 0x155bd
leaq -0x50(%rbp), %rdi
xorl %esi, %esi
callq 0x175ac
movslq 0xb4(%rbx), %rax
movq 0x18(%rbx), %rcx
movq (%rcx,%rax,8), %rax
testq %rax, %rax
je 0x156ba
movq (%rax), %rax
movq -0x8(%rax), %rsi
leaq 0x19608(%rip), %rdi     # 0x2eaf8
callq 0x76ba
testb %al, %al
jne 0x156c4
movslq 0xb4(%rbx), %rax
movq 0x18(%rbx), %rcx
movq -0x8(%rcx,%rax,8), %rax
testq %rax, %rax
je 0x156ba
movq (%rax), %rax
movq -0x8(%rax), %rsi
leaq 0x195d4(%rip), %rdi     # 0x2eaf8
callq 0x76ba
testb %al, %al
jne 0x1575c
leaq -0x50(%rbp), %rdi
callq 0x175d0
jmp 0x155d8
leaq -0x50(%rbp), %rdi
xorps %xmm0, %xmm0
callq 0x177d4
movslq 0xb4(%rbx), %rax
movq 0x18(%rbx), %rcx
movq (%rcx,%rax,8), %rax
testq %rax, %rax
je 0x156bf
movq (%rax), %rax
movq -0x8(%rax), %rsi
leaq 0x19657(%rip), %rdi     # 0x2ebc8
callq 0x76ba
testb %al, %al
jne 0x15710
movslq 0xb4(%rbx), %rax
movq 0x18(%rbx), %rcx
movq -0x8(%rcx,%rax,8), %rax
testq %rax, %rax
je 0x156bf
movq (%rax), %rax
movq -0x8(%rax), %rsi
leaq 0x19623(%rip), %rdi     # 0x2ebc8
callq 0x76ba
testb %al, %al
jne 0x157a5
leaq -0x50(%rbp), %rdi
callq 0x17802
jmp 0x155d8
movq 0x19a2c(%rip), %rdi     # 0x2eff0
leaq 0x8d25(%rip), %rsi      # 0x1e2f0
callq 0x61b0
movq %rax, %rdi
callq 0x60e0
movslq 0xb4(%rbx), %rax
movq 0x18(%rbx), %rcx
movq -0x8(%rcx,%rax,8), %rdi
movq (%rcx,%rax,8), %rsi
movq (%rdi), %rax
callq *0x8(%rax)
movslq 0xb4(%rbx), %rax
movq 0x18(%rbx), %rcx
movq (%rcx,%rax,8), %r14
testq %r14, %r14
je 0x1560e
movq %r14, %rdi
callq 0x17248
pushq $0x8
popq %rsi
movq %r14, %rdi
callq 0x61e0
movslq 0xb4(%rbx), %rax
movq 0x18(%rbx), %rcx
andq $0x0, (%rcx,%rax,8)
addq $-0x8, 0x20(%rbx)
decl %eax
movl %eax, 0xb4(%rbx)
leaq 0xba0c(%rip), %rsi      # 0x21049
leaq -0x40(%rbp), %rdi
leaq -0x50(%rbp), %rdx
callq 0x72a6
addq $0x78, %rbx
leaq -0x40(%rbp), %rsi
movq %rbx, %rdi
callq 0x1925e
leaq -0x40(%rbp), %rdi
callq 0x60d0
addq $0x38, %rsp
popq %rbx
popq %r14
popq %r15
popq %rbp
retq
pushq $0x20
popq %rdi
callq 0x60f0
movq %rax, %r14
leaq 0xb892(%rip), %rsi      # 0x20f12
leaq -0x40(%rbp), %rdi
leaq -0x50(%rbp), %rdx
callq 0x72a6
movb $0x1, %r15b
leaq -0x40(%rbp), %rsi
movq %r14, %rdi
callq 0x17d10
xorl %r15d, %r15d
leaq 0x183e2(%rip), %rsi     # 0x2da88
leaq 0x266d(%rip), %rdx      # 0x17d1a
movq %r14, %rdi
callq 0x63c0
jmp 0x157ec
callq 0x6220
callq 0x6220
pushq $0x20
popq %rdi
callq 0x60f0
movq %rax, %r14
leaq 0xb875(%rip), %rsi      # 0x20f4b
leaq -0x40(%rbp), %rdi
leaq -0x19(%rbp), %rdx
callq 0x72a6
movb $0x1, %r15b
leaq -0x40(%rbp), %rsi
movq %r14, %rdi
callq 0x17d10
xorl %r15d, %r15d
leaq 0x1838c(%rip), %rsi     # 0x2da88
leaq 0x2617(%rip), %rdx      # 0x17d1a
movq %r14, %rdi
callq 0x63c0
jmp 0x157ec
pushq $0x20
popq %rdi
callq 0x60f0
movq %rax, %r14
leaq 0xb8ab(%rip), %rsi      # 0x20fcd
leaq -0x40(%rbp), %rdi
leaq -0x19(%rbp), %rdx
callq 0x72a6
movb $0x1, %r15b
leaq -0x40(%rbp), %rsi
movq %r14, %rdi
callq 0x17d10
xorl %r15d, %r15d
leaq 0x18340(%rip), %rsi     # 0x2da88
leaq 0x25cb(%rip), %rdx      # 0x17d1a
movq %r14, %rdi
callq 0x63c0
jmp 0x157ec
pushq $0x20
popq %rdi
callq 0x60f0
movq %rax, %r14
leaq 0xb81c(%rip), %rsi      # 0x20f8a
leaq -0x40(%rbp), %rdi
leaq -0x19(%rbp), %rdx
callq 0x72a6
movb $0x1, %r15b
leaq -0x40(%rbp), %rsi
movq %r14, %rdi
callq 0x17d10
xorl %r15d, %r15d
leaq 0x182f4(%rip), %rsi     # 0x2da88
leaq 0x257f(%rip), %rdx      # 0x17d1a
movq %r14, %rdi
callq 0x63c0
jmp 0x157ec
pushq $0x20
popq %rdi
callq 0x60f0
movq %rax, %r14
leaq 0xb852(%rip), %rsi      # 0x21009
leaq -0x40(%rbp), %rdi
leaq -0x19(%rbp), %rdx
callq 0x72a6
movb $0x1, %r15b
leaq -0x40(%rbp), %rsi
movq %r14, %rdi
callq 0x17d10
xorl %r15d, %r15d
leaq 0x182ab(%rip), %rsi     # 0x2da88
leaq 0x2536(%rip), %rdx      # 0x17d1a
movq %r14, %rdi
callq 0x63c0
jmp 0x157f4
jmp 0x15807
jmp 0x15814
jmp 0x15827
movq %rax, %rbx
leaq -0x40(%rbp), %rdi
callq 0x60d0
testb %r15b, %r15b
jne 0x1580a
jmp 0x15857
movq %rax, %rbx
movq %r14, %rdi
callq 0x6150
jmp 0x15857
movq %rax, %rbx
leaq -0x40(%rbp), %rdi
callq 0x60d0
testb %r15b, %r15b
jne 0x1582a
jmp 0x15865
movq %rax, %rbx
movq %r14, %rdi
callq 0x6150
jmp 0x15865
movq %rax, %rbx
leaq -0x40(%rbp), %rdi
callq 0x60d0
testb %r15b, %r15b
jne 0x1584a
jmp 0x15881
movq %rax, %rbx
movq %r14, %rdi
callq 0x6150
jmp 0x15881
movq %rax, %rbx
leaq -0x50(%rbp), %rdi
callq 0x17802
jmp 0x15881
movq %rax, %rbx
leaq -0x50(%rbp), %rdi
callq 0x175d0
jmp 0x15881
movq %rax, %rbx
leaq -0x40(%rbp), %rdi
callq 0x60d0
jmp 0x15881
movq %rax, %rbx
movq %rbx, %rdi
callq 0x63f0
nop