shuiyu1123
2d56cb3bc9
核心热路径(数学/内存/字符串/性能分析)用MASM汇编(SSE/AVX2) 外围系统(窗口/渲染/ECS/音频/UI/脚本)用C语言 含自研编辑器、VisualScript积木编程、中文渲染(glyph_atlas)
128 lines
3.6 KiB
C++
128 lines
3.6 KiB
C++
; ============================================================================
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; asm_macros.inc - MASM 通用宏定义
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; Windows x64 调用约定: RCX, RDX, R8, R9 传参, XMM0-XMM3 浮点
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; ============================================================================
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; --- 函数帧管理宏 ---
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; PROLOGUE: 保存非易失寄存器, 分配栈空间
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; 使用: PROLOGUE 栈空间大小
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PROLOGUE MACRO stack_size:REQ
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push rbx
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push rbp
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push rdi
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push rsi
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push r12
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push r13
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push r14
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push r15
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sub rsp, stack_size
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; 保存浮点参数寄存器 (如果有)
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movsd qword ptr [rsp + stack_size - 8], xmm6
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movsd qword ptr [rsp + stack_size - 16], xmm7
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ENDM
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; EPILOGUE: 恢复非易失寄存器, 释放栈空间
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EPILOGUE MACRO stack_size:REQ
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movsd xmm6, qword ptr [rsp + stack_size - 8]
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movsd xmm7, qword ptr [rsp + stack_size - 16]
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add rsp, stack_size
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pop r15
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pop r14
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pop r13
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pop r12
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pop rsi
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pop rdi
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pop rbp
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pop rbx
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ret
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ENDM
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; --- SSE/AVX 常量 ---
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.DATA
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ALIGN 16
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sse_mask_abs DD 07FFFFFFFH, 07FFFFFFFH, 07FFFFFFFH, 07FFFFFFFH ; 绝对值掩码
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sse_negate DD 80000000H, 80000000H, 80000000H, 80000000H ; 符号位掩码
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sse_one DD 3F800000H, 3F800000H, 3F800000H, 3F800000H ; 1.0f
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sse_half DD 3F000000H, 3F000000H, 3F000000H, 3F000000H ; 0.5f
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eps_float DD 33D6BF94H ; 1e-6f
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.CODE
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; --- 工具宏 ---
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; LOAD_VEC3: 从内存加载 Vec3 到 XMM 寄存器 (填充 w=1.0)
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; ptr: 内存地址, reg: XMM 寄存器
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LOAD_VEC3 MACRO ptr, reg
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movss xmm0, dword ptr [ptr] ; x
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movss xmm1, dword ptr [ptr + 4] ; y
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movss xmm2, dword ptr [ptr + 8] ; z
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unpcklps xmm0, xmm1 ; {x, y, ?, ?}
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movss xmm3, dword ptr [sse_one] ; w = 1.0
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unpcklps xmm2, xmm3 ; {z, 1.0, ?, ?}
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movlhps xmm0, xmm2 ; {x, y, z, 1.0}
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movaps reg, xmm0
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ENDM
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; STORE_VEC3: 将 XMM 寄存器的前3个float存储到内存
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STORE_VEC3 MACRO reg, ptr
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movss dword ptr [ptr], xmm0 ; x
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shufps xmm0, xmm0, 01010101b
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movss dword ptr [ptr + 4], xmm0 ; y
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shufps xmm0, xmm0, 10101010b
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movss dword ptr [ptr + 8], xmm0 ; z
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ENDM
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; --- 外部函数声明 ---
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externdef vec3_add:PROC
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externdef vec3_sub:PROC
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externdef vec3_scale:PROC
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externdef vec3_dot:PROC
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externdef vec3_cross:PROC
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externdef vec3_length:PROC
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externdef vec3_normalize:PROC
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externdef vec3_lerp:PROC
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externdef vec3_distance:PROC
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externdef vec4_add:PROC
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externdef vec4_sub:PROC
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externdef vec4_mul:PROC
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externdef vec4_dot:PROC
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externdef vec4_length:PROC
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externdef vec4_normalize:PROC
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externdef mat4_identity:PROC
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externdef mat4_multiply:PROC
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externdef mat4_transpose:PROC
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externdef mat4_invert:PROC
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externdef mat4_translate:PROC
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externdef mat4_scale_f:PROC
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externdef mat4_rotate_x:PROC
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externdef mat4_rotate_y:PROC
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externdef mat4_rotate_z:PROC
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externdef mat4_perspective:PROC
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externdef mat4_orthographic:PROC
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externdef mat4_lookat:PROC
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externdef quat_multiply:PROC
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externdef quat_conjugate:PROC
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externdef quat_normalize:PROC
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externdef quat_rotate_vec3:PROC
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externdef quat_slerp:PROC
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externdef quat_to_matrix:PROC
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externdef quat_from_axis_angle:PROC
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externdef quat_from_euler:PROC
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externdef mem_aligned_alloc:PROC
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externdef mem_aligned_free:PROC
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externdef mem_aligned_realloc:PROC
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externdef fast_memcpy:PROC
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externdef fast_memset:PROC
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externdef fast_strlen:PROC
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externdef fast_strcmp:PROC
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externdef prof_rdtsc:PROC
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externdef prof_cycles_to_ms:PROC
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externdef prof_get_freq:PROC
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