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use UNLIKELY() macro (#554)

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feos 2024-04-20 21:16:54 +03:00 committed by GitHub
parent dbdb18eb50
commit 0c45a8a8ab
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4 changed files with 23 additions and 14 deletions
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2
core/m68k/m68kcpu.c
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@ -292,7 +292,7 @@ void m68k_run(unsigned int cycles)
#ifdef HOOK_CPU
/* Trigger execution hook */
if (cpu_hook)
if (UNLIKELY(cpu_hook))
cpu_hook(HOOK_M68K_E, 0, REG_PC, 0);
#endif

12
core/m68k/m68kcpu.h
View File

@ -859,7 +859,7 @@ INLINE uint m68ki_read_8(uint address)
else val = READ_BYTE(temp->base, (address) & 0xffff);
#ifdef HOOK_CPU
if (cpu_hook)
if (UNLIKELY(cpu_hook))
cpu_hook(HOOK_M68K_R, 1, address, val);
#endif
@ -879,7 +879,7 @@ INLINE uint m68ki_read_16(uint address)
else val = *(uint16 *)(temp->base + ((address) & 0xffff));
#ifdef HOOK_CPU
if (cpu_hook)
if (UNLIKELY(cpu_hook))
cpu_hook(HOOK_M68K_R, 2, address, val);
#endif
@ -899,7 +899,7 @@ INLINE uint m68ki_read_32(uint address)
else val = m68k_read_immediate_32(address);
#ifdef HOOK_CPU
if (cpu_hook)
if (UNLIKELY(cpu_hook))
cpu_hook(HOOK_M68K_R, 4, address, val);
#endif
@ -913,7 +913,7 @@ INLINE void m68ki_write_8(uint address, uint value)
m68ki_set_fc(FLAG_S | FUNCTION_CODE_USER_DATA) /* auto-disable (see m68kcpu.h) */
#ifdef HOOK_CPU
if (cpu_hook)
if (UNLIKELY(cpu_hook))
cpu_hook(HOOK_M68K_W, 1, address, value);
#endif
@ -930,7 +930,7 @@ INLINE void m68ki_write_16(uint address, uint value)
m68ki_check_address_error(address, MODE_WRITE, FLAG_S | FUNCTION_CODE_USER_DATA); /* auto-disable (see m68kcpu.h) */
#ifdef HOOK_CPU
if (cpu_hook)
if (UNLIKELY(cpu_hook))
cpu_hook(HOOK_M68K_W, 2, address, value);
#endif
@ -947,7 +947,7 @@ INLINE void m68ki_write_32(uint address, uint value)
m68ki_check_address_error(address, MODE_WRITE, FLAG_S | FUNCTION_CODE_USER_DATA) /* auto-disable (see m68kcpu.h) */
#ifdef HOOK_CPU
if (cpu_hook)
if (UNLIKELY(cpu_hook))
cpu_hook(HOOK_M68K_W, 4, address, value);
#endif

9
core/macros.h
View File

@ -53,6 +53,15 @@
#define ALIGNED_(x) __attribute__ ((aligned(x)))
#endif
/* Provide the compiler with branch prediction information */
#if defined(__GNUC__)
#define LIKELY(x) __builtin_expect(!!(x), 1)
#define UNLIKELY(x) __builtin_expect(!!(x), 0)
#else
#define LIKELY(x) x
#define UNLIKELY(x) x
#endif
/* Default CD image file access (read-only) functions */
/* If you need to override default stdio.h functions with custom filesystem API,
redefine following macros in platform specific include file (osd.h) or Makefile

14
core/vdp_ctrl.c
View File

@ -2162,7 +2162,7 @@ static void vdp_bus_w(unsigned int data)
}
#ifdef HOOK_CPU
if (cpu_hook)
if (UNLIKELY(cpu_hook))
cpu_hook(HOOK_VRAM_W, 2, addr, data);
#endif
@ -2211,7 +2211,7 @@ static void vdp_bus_w(unsigned int data)
}
#ifdef HOOK_CPU
if (cpu_hook)
if (UNLIKELY(cpu_hook))
cpu_hook(HOOK_CRAM_W, 2, addr, data);
#endif
@ -2237,7 +2237,7 @@ static void vdp_bus_w(unsigned int data)
}
#ifdef HOOK_CPU
if (cpu_hook)
if (UNLIKELY(cpu_hook))
cpu_hook(HOOK_VSRAM_W, 2, addr, data);
#endif
@ -2448,7 +2448,7 @@ static unsigned int vdp_68k_data_r_m5(void)
data = *(uint16 *)&vram[addr & 0xFFFE];
#ifdef HOOK_CPU
if (cpu_hook)
if (UNLIKELY(cpu_hook))
cpu_hook(HOOK_VRAM_R, 2, addr, data);
#endif
@ -2477,7 +2477,7 @@ static unsigned int vdp_68k_data_r_m5(void)
data |= (fifo[fifo_idx] & ~0x7FF);
#ifdef HOOK_CPU
if (cpu_hook)
if (UNLIKELY(cpu_hook))
cpu_hook(HOOK_VSRAM_R, 2, addr, data);
#endif
@ -2499,7 +2499,7 @@ static unsigned int vdp_68k_data_r_m5(void)
data |= (fifo[fifo_idx] & ~0xEEE);
#ifdef HOOK_CPU
if (cpu_hook)
if (UNLIKELY(cpu_hook))
cpu_hook(HOOK_CRAM_R, 2, addr, data);
#endif
@ -2518,7 +2518,7 @@ static unsigned int vdp_68k_data_r_m5(void)
data |= (fifo[fifo_idx] & ~0xFF);
#ifdef HOOK_CPU
if (cpu_hook)
if (UNLIKELY(cpu_hook))
cpu_hook(HOOK_VRAM_R, 2, addr, data);
#endif