/* CUDA finite difference wave equation solver, written by
 * Jeff Amelang, 2012
 *
 * Modified by Kevin Yuh, 2013-14 */

#include <cstdio>

#include <cuda_runtime.h>

#include "Cuda1DFDWave_cuda.cuh"

/* kernel to calculate new displacements */
__global__ void GenerateDisplacements(float* dev_Data, int oldStart, 
                                    int currentStart, int newStart,
                                    float courantSquared, int numberOfNodes) {

    unsigned int index = blockDim.x * blockIdx.x + threadIdx.x;
    
    // ignore both left and right boundary conditions (already set on GPU) 
    while (index < numberOfNodes - 1) {      
        if (index > 0) {
            // compute next displacement:
            // y(x,t+1) = 2 * y(x,t) - y(x,t-1) + courantSquared(y(x+1,t)
            //      - 2 * y(x,t) + y(x-1,t))
            dev_Data[newStart + index] = 2 * dev_Data[currentStart + index] 
                - dev_Data[oldStart + index] + courantSquared * 
                (dev_Data[currentStart + index + 1] - 
                2 * dev_Data[currentStart + index] + 
                dev_Data[currentStart + index - 1]);
        }

        index += blockDim.x * gridDim.x; // increment index to next value
    }
}

/* helper function to call the kernel */
void kernelCall(float* dev_Data, int oldStart, int currentStart, int newStart,
                                 float courantSquared, int numberOfNodes, 
                                  unsigned int blocks, unsigned int threadsPerBlock) {
    GenerateDisplacements <<<blocks, threadsPerBlock>>> (dev_Data, oldStart, 
                            currentStart, newStart, courantSquared, numberOfNodes);
}

	.file	"tmpxft_0030d6bb_00000000-6_Cuda1DFDWave_cuda.cudafe1.cpp"
	.text
#APP

#NO_APP
	.type	_ZL26__cudaUnregisterBinaryUtilv, @function
_ZL26__cudaUnregisterBinaryUtilv:
.LFB2030:
	.cfi_startproc
	endbr64
	movq	_ZL20__cudaFatCubinHandle(%rip), %rdi
	jmp	__cudaUnregisterFatBinary@PLT
	.cfi_endproc
.LFE2030:
	.size	_ZL26__cudaUnregisterBinaryUtilv, .-_ZL26__cudaUnregisterBinaryUtilv
	.globl	_Z46__device_stub__Z21GenerateDisplacementsPfiiifiPfiiifi
	.type	_Z46__device_stub__Z21GenerateDisplacementsPfiiifiPfiiifi, @function
_Z46__device_stub__Z21GenerateDisplacementsPfiiifiPfiiifi:
.LFB2052:
	.cfi_startproc
	endbr64
	subq	$168, %rsp
	.cfi_def_cfa_offset 176
	movq	%rdi, 24(%rsp)
	leaq	56(%rsp), %rdi
	movl	%esi, 20(%rsp)
	leaq	68(%rsp), %rsi
	movl	%edx, 16(%rsp)
	leaq	40(%rsp), %rdx
	movl	%ecx, 12(%rsp)
	leaq	48(%rsp), %rcx
	movl	%r8d, 4(%rsp)
	movss	%xmm0, 8(%rsp)
	movq	%fs:40, %rax
	movq	%rax, 152(%rsp)
	xorl	%eax, %eax
	leaq	24(%rsp), %rax
	movl	$1, 64(%rsp)
	movq	%rax, 104(%rsp)
	leaq	20(%rsp), %rax
	movq	%rax, 112(%rsp)
	leaq	16(%rsp), %rax
	movq	%rax, 120(%rsp)
	leaq	12(%rsp), %rax
	movq	%rax, 128(%rsp)
	leaq	8(%rsp), %rax
	movq	%rax, 136(%rsp)
	leaq	4(%rsp), %rax
	movq	%rax, 144(%rsp)
	movabsq	$4294967297, %rax
	movq	%rax, 56(%rsp)
	movq	%rax, 68(%rsp)
	movl	$1, 76(%rsp)
	call	__cudaPopCallConfiguration@PLT
	testl	%eax, %eax
	jne	.L2
	pushq	48(%rsp)
	.cfi_def_cfa_offset 184
	leaq	_Z21GenerateDisplacementsPfiiifi(%rip), %rdi
	pushq	48(%rsp)
	.cfi_def_cfa_offset 192
	movq	84(%rsp), %rcx
	movl	92(%rsp), %r8d
	movq	72(%rsp), %rsi
	movl	80(%rsp), %edx
	leaq	120(%rsp), %r9
	call	cudaLaunchKernel@PLT
	popq	%rax
	.cfi_def_cfa_offset 184
	popq	%rdx
	.cfi_def_cfa_offset 176
.L2:
	movq	152(%rsp), %rax
	subq	%fs:40, %rax
	je	.L4
	call	__stack_chk_fail@PLT
.L4:
	addq	$168, %rsp
	.cfi_def_cfa_offset 8
	ret
	.cfi_endproc
.LFE2052:
	.size	_Z46__device_stub__Z21GenerateDisplacementsPfiiifiPfiiifi, .-_Z46__device_stub__Z21GenerateDisplacementsPfiiifiPfiiifi
	.globl	_Z21GenerateDisplacementsPfiiifi
	.type	_Z21GenerateDisplacementsPfiiifi, @function
_Z21GenerateDisplacementsPfiiifi:
.LFB2053:
	.cfi_startproc
	endbr64
	jmp	_Z46__device_stub__Z21GenerateDisplacementsPfiiifiPfiiifi
	.cfi_endproc
.LFE2053:
	.size	_Z21GenerateDisplacementsPfiiifi, .-_Z21GenerateDisplacementsPfiiifi
	.globl	_Z10kernelCallPfiiifijj
	.type	_Z10kernelCallPfiiifijj, @function
_Z10kernelCallPfiiifijj:
.LFB2027:
	.cfi_startproc
	endbr64
	pushq	%r14
	.cfi_def_cfa_offset 16
	.cfi_offset 14, -16
	movl	%r8d, %r14d
	xorl	%r8d, %r8d
	pushq	%r13
	.cfi_def_cfa_offset 24
	.cfi_offset 13, -24
	movl	%ecx, %r13d
	pushq	%r12
	.cfi_def_cfa_offset 32
	.cfi_offset 12, -32
	movl	%edx, %r12d
	pushq	%rbp
	.cfi_def_cfa_offset 40
	.cfi_offset 6, -40
	movl	%esi, %ebp
	pushq	%rbx
	.cfi_def_cfa_offset 48
	.cfi_offset 3, -48
	movq	%rdi, %rbx
	subq	$48, %rsp
	.cfi_def_cfa_offset 96
	movl	96(%rsp), %eax
	movl	%r9d, 24(%rsp)
	xorl	%r9d, %r9d
	movss	%xmm0, 12(%rsp)
	movl	%eax, 36(%rsp)
	movabsq	$4294967297, %rax
	movq	%rax, 40(%rsp)
	movl	44(%rsp), %ecx
	movq	%rax, 28(%rsp)
	movq	36(%rsp), %rdx
	movq	24(%rsp), %rdi
	movl	32(%rsp), %esi
	call	__cudaPushCallConfiguration@PLT
	movss	12(%rsp), %xmm0
	testl	%eax, %eax
	jne	.L8
	addq	$48, %rsp
	.cfi_remember_state
	.cfi_def_cfa_offset 48
	movl	%r14d, %r8d
	movl	%r13d, %ecx
	movl	%r12d, %edx
	movl	%ebp, %esi
	movq	%rbx, %rdi
	popq	%rbx
	.cfi_def_cfa_offset 40
	popq	%rbp
	.cfi_def_cfa_offset 32
	popq	%r12
	.cfi_def_cfa_offset 24
	popq	%r13
	.cfi_def_cfa_offset 16
	popq	%r14
	.cfi_def_cfa_offset 8
	jmp	_Z46__device_stub__Z21GenerateDisplacementsPfiiifiPfiiifi
.L8:
	.cfi_restore_state
	addq	$48, %rsp
	.cfi_def_cfa_offset 48
	popq	%rbx
	.cfi_def_cfa_offset 40
	popq	%rbp
	.cfi_def_cfa_offset 32
	popq	%r12
	.cfi_def_cfa_offset 24
	popq	%r13
	.cfi_def_cfa_offset 16
	popq	%r14
	.cfi_def_cfa_offset 8
	ret
	.cfi_endproc
.LFE2027:
	.size	_Z10kernelCallPfiiifijj, .-_Z10kernelCallPfiiifijj
	.section	.rodata.str1.1,"aMS",@progbits,1
.LC0:
	.string	"_Z21GenerateDisplacementsPfiiifi"
	.section	.text.startup,"ax",@progbits
	.type	_ZL24__sti____cudaRegisterAllv, @function
_ZL24__sti____cudaRegisterAllv:
.LFB2055:
	.cfi_startproc
	endbr64
	pushq	%rax
	.cfi_def_cfa_offset 16
	leaq	_ZL15__fatDeviceText(%rip), %rdi
	call	__cudaRegisterFatBinary@PLT
	pushq	$0
	.cfi_def_cfa_offset 24
	xorl	%r9d, %r9d
	orl	$-1, %r8d
	pushq	$0
	.cfi_def_cfa_offset 32
	leaq	.LC0(%rip), %rdx
	movq	%rax, %rdi
	leaq	_Z21GenerateDisplacementsPfiiifi(%rip), %rsi
	pushq	$0
	.cfi_def_cfa_offset 40
	movq	%rdx, %rcx
	pushq	$0
	.cfi_def_cfa_offset 48
	movq	%rax, _ZL20__cudaFatCubinHandle(%rip)
	call	__cudaRegisterFunction@PLT
	movq	_ZL20__cudaFatCubinHandle(%rip), %rdi
	addq	$32, %rsp
	.cfi_def_cfa_offset 16
	call	__cudaRegisterFatBinaryEnd@PLT
	leaq	_ZL26__cudaUnregisterBinaryUtilv(%rip), %rdi
	popq	%rdx
	.cfi_def_cfa_offset 8
	jmp	atexit@PLT
	.cfi_endproc
.LFE2055:
	.size	_ZL24__sti____cudaRegisterAllv, .-_ZL24__sti____cudaRegisterAllv
	.section	.init_array,"aw"
	.align 8
	.quad	_ZL24__sti____cudaRegisterAllv
	.section	.nvFatBinSegment,"aw"
	.align 8
	.type	_ZL15__fatDeviceText, @object
	.size	_ZL15__fatDeviceText, 24
_ZL15__fatDeviceText:
	.long	1180844977
	.long	1
	.quad	fatbinData
	.quad	0
	.local	_ZL20__cudaFatCubinHandle
	.comm	_ZL20__cudaFatCubinHandle,8,8
	.ident	"GCC: (Ubuntu 13.3.0-6ubuntu2~24.04) 13.3.0"
	.section	.note.GNU-stack,"",@progbits
	.section	.note.gnu.property,"a"
	.align 8
	.long	1f - 0f
	.long	4f - 1f
	.long	5
0:
	.string	"GNU"
1:
	.align 8
	.long	0xc0000002
	.long	3f - 2f
2:
	.long	0x3
3:
	.align 8
4:

/* CUDA finite difference wave equation solver, written by
 * Jeff Amelang, 2012
 *
 * Modified by Kevin Yuh, 2013-14 */

#ifndef CUDA_1D_FD_WAVE_CUDA_CUH
#define CUDA_1D_FD_WAVE_CUDA_CUH


/* If you have any functions in your .cu file that need to be
accessed from the outside, declare them here */

__global__ void GenerateDisplacements(float* dev_Data, int oldStart, int currentStart, int newStart,
                                 float courantSquared, int numberOfNodes);

/* helper function to call the kernel */
void kernelCall(float* dev_Data, int oldStart, int currentStart, int newStart,
                                 float courantSquared, int numberOfNodes,
				unsigned int blocks, unsigned int threadsPerBlock);

#endif // CUDA_1D_FD_WAVE_CUDA_CUH

	.text
	.file	"Cuda1DFDWave_cuda.hip"
	.type	__hip_cuid_,@object             # @__hip_cuid_
	.bss
	.globl	__hip_cuid_
__hip_cuid_:
	.byte	0                               # 0x0
	.size	__hip_cuid_, 1

	.ident	"AMD clang version 18.0.0git (https://github.com/RadeonOpenCompute/llvm-project roc-6.3.2 25012 e5bf7e55c91490b07c49d8960fa7983d864936c4)"
	.section	".note.GNU-stack","",@progbits
	.addrsig
	.addrsig_sym __hip_cuid_

	.text
	.p2alignl 7, 3214868480
	.fill 96, 4, 3214868480
	.type	__hip_cuid_,@object             ; @__hip_cuid_
	.section	.bss,"aw",@nobits
	.globl	__hip_cuid_
__hip_cuid_:
	.byte	0                               ; 0x0
	.size	__hip_cuid_, 1

	.ident	"AMD clang version 18.0.0git (https://github.com/RadeonOpenCompute/llvm-project roc-6.3.2 25012 e5bf7e55c91490b07c49d8960fa7983d864936c4)"
	.section	".note.GNU-stack","",@progbits
	.addrsig
	.addrsig_sym __hip_cuid_
	.amdgcn_target "amdgcn-amd-amdhsa--gfx1100"
	.amdgpu_metadata
---
amdhsa.kernels:  []
amdhsa.target:   amdgcn-amd-amdhsa--gfx1100
amdhsa.version:
  - 1
  - 2
...

	.end_amdgpu_metadata
