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https://github.com/Oibaf66/frodo-wii.git
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Remove GLOBAL_VARS micro optimization
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simon.kagstrom
parent
46d0980f50
commit
9513dc9849
@ -24,7 +24,7 @@
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// Define this if you want global variables instead of member variables
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#if defined(__i386) || defined(mc68000) || defined(__MC68K__)
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#define GLOBAL_VARS
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//#define GLOBAL_VARS
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#endif
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// Define this if you have a processor that can do unaligned accesses quickly
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146
Src/VIC_SC.cpp
146
Src/VIC_SC.cpp
@ -141,96 +141,6 @@ uint16 MultiExpTable[256] = {
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0xFFA0, 0xFFA5, 0xFFAA, 0xFFAF, 0xFFF0, 0xFFF5, 0xFFFA, 0xFFFF
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};
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#ifdef GLOBAL_VARS
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static uint16 mx[8]; // VIC registers
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static uint8 my[8];
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static uint8 mx8;
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static uint8 ctrl1, ctrl2;
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static uint8 lpx, lpy;
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static uint8 me, mxe, mye, mdp, mmc;
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static uint8 vbase;
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static uint8 irq_flag, irq_mask;
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static uint8 clx_spr, clx_bgr;
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static uint8 ec, b0c, b1c, b2c, b3c, mm0, mm1;
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static uint8 sc[8];
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static uint8 *ram, *char_rom, *color_ram; // Pointers to RAM and ROM
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static C64 *the_c64; // Pointer to C64
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static C64Display *the_display; // Pointer to C64Display
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static MOS6510 *the_cpu; // Pointer to 6510
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static MOS6569 *the_vic; // Pointer to self
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static uint8 colors[256]; // Indices of the 16 C64 colors (16 times mirrored to avoid "& 0x0f")
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static uint8 ec_color, b0c_color, b1c_color, b2c_color, b3c_color; // Indices for exterior/background colors
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static uint8 mm0_color, mm1_color; // Indices for MOB multicolors
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static uint8 spr_color[8]; // Indices for MOB colors
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static uint8 matrix_line[40]; // Buffer for video line, read in Bad Lines
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static uint8 color_line[40]; // Buffer for color line, read in Bad Lines
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#ifdef __POWERPC__
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static double chunky_tmp[DISPLAY_X/8]; // Temporary line buffer for GameKit speedup
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#endif
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static uint8 *chunky_ptr; // Pointer in chunky bitmap buffer
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static uint8 *chunky_line_start; // Pointer to start of current line in bitmap buffer
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static uint8 *fore_mask_ptr; // Pointer in fore_mask_buf
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static int xmod; // Number of bytes per row
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static uint16 raster_x; // Current raster x position
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static uint16 raster_y; // Current raster line
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static uint16 irq_raster; // Interrupt raster line
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static uint16 dy_start; // Comparison values for border logic
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static uint16 dy_stop;
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static uint16 rc; // Row counter
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static uint16 vc; // Video counter
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static uint16 vc_base; // Video counter base
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static uint16 x_scroll; // X scroll value
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static uint16 y_scroll; // Y scroll value
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static uint16 cia_vabase; // CIA VA14/15 video base
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static int cycle; // Current cycle in line (1..63)
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static int display_idx; // Index of current display mode
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static int ml_index; // Index in matrix/color_line[]
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static int skip_counter; // Counter for frame-skipping
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static uint16 mc[8]; // Sprite data counters
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static uint16 mc_base[8]; // Sprite data counter bases
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static uint8 spr_coll_buf[0x180]; // Buffer for sprite-sprite collisions and priorities
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static uint8 fore_mask_buf[0x180/8]; // Foreground mask for sprite-graphics collisions and priorities
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static bool display_state; // true: Display state, false: Idle state
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static bool border_on; // Flag: Upper/lower border on
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static bool frame_skipped; // Flag: Frame is being skipped
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static bool bad_lines_enabled; // Flag: Bad Lines enabled for this frame
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static bool lp_triggered; // Flag: Lightpen was triggered in this frame
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static bool is_bad_line; // Flag: Current line is Bad Line
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static bool draw_this_line; // Flag: This line is drawn on the screen
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static bool ud_border_on; // Flag: Upper/lower border on
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static bool vblanking; // Flag: VBlank in next cycle
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static bool border_on_sample[5]; // Samples of border state at different cycles (1, 17, 18, 56, 57)
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static uint8 border_color_sample[DISPLAY_X/8]; // Samples of border color at each "displayed" cycle
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static uint16 matrix_base; // Video matrix base
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static uint16 char_base; // Character generator base
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static uint16 bitmap_base; // Bitmap base
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static uint8 ref_cnt; // Refresh counter
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static uint8 spr_exp_y; // 8 sprite y expansion flipflops
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static uint8 spr_dma_on; // 8 flags: Sprite DMA active
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static uint8 spr_disp_on; // 8 flags: Sprite display active
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static uint8 spr_draw; // 8 flags: Draw sprite in this line
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static uint16 spr_ptr[8]; // Sprite data pointers
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static uint8 gfx_data, char_data, color_data, last_char_data;
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static uint8 spr_data[8][4]; // Sprite data read
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static uint8 spr_draw_data[8][4]; // Sprite data for drawing
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static uint32 first_ba_cycle; // Cycle when BA first went low
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#endif
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/*
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@ -238,22 +148,11 @@ static uint32 first_ba_cycle; // Cycle when BA first went low
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*/
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MOS6569::MOS6569(C64 *c64, C64Display *disp, MOS6510 *CPU, uint8 *RAM, uint8 *Char, uint8 *Color)
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#ifndef GLOBAL_VARS
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: ram(RAM), char_rom(Char), color_ram(Color), the_c64(c64), the_display(disp), the_cpu(CPU)
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#endif
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{
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int i;
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// Set pointers
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#ifdef GLOBAL_VARS
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the_vic = this;
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the_c64 = c64;
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the_display = disp;
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the_cpu = CPU;
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ram = RAM;
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char_rom = Char;
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color_ram = Color;
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#endif
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matrix_base = 0;
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char_base = 0;
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bitmap_base = 0;
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@ -527,11 +426,7 @@ void MOS6569::SetState(MOS6569State *vd)
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* Trigger raster IRQ
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*/
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#ifdef GLOBAL_VARS
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static inline void raster_irq(void)
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#else
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inline void MOS6569::raster_irq(void)
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#endif
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{
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irq_flag |= 0x01;
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if (irq_mask & 0x01) {
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@ -798,25 +693,13 @@ void MOS6569::TriggerLightpen(void)
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* Read a byte from the VIC's address space
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*/
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#ifdef GLOBAL_VARS
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static inline uint8 read_byte(uint16 adr)
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#else
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inline uint8 MOS6569::read_byte(uint16 adr)
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#endif
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{
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uint16 va = adr | cia_vabase;
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if ((va & 0x7000) == 0x1000)
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#ifdef GLOBAL_VARS
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return the_vic->LastVICByte = char_rom[va & 0x0fff];
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#else
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return LastVICByte = char_rom[va & 0x0fff];
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#endif
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else
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#ifdef GLOBAL_VARS
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return the_vic->LastVICByte = ram[va];
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#else
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return LastVICByte = ram[va];
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#endif
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}
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@ -834,14 +717,7 @@ inline void memset8(uint8 *p, uint8 c)
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* Video matrix access
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*/
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#ifdef __i386
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inline
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#endif
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#ifdef GLOBAL_VARS
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static void matrix_access(void)
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#else
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void MOS6569::matrix_access(void)
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#endif
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{
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if (the_cpu->BALow) {
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if (the_c64->CycleCounter-first_ba_cycle < 3)
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@ -859,14 +735,7 @@ void MOS6569::matrix_access(void)
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* Graphics data access
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*/
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#ifdef __i386
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inline
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#endif
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#ifdef GLOBAL_VARS
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static void graphics_access(void)
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#else
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void MOS6569::graphics_access(void)
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#endif
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{
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if (display_state) {
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@ -896,11 +765,7 @@ void MOS6569::graphics_access(void)
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* Background display (8 pixels)
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*/
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#ifdef GLOBAL_VARS
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static void draw_background(void)
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#else
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void MOS6569::draw_background(void)
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#endif
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{
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uint8 *p = chunky_ptr;
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uint8 c;
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@ -941,14 +806,7 @@ void MOS6569::draw_background(void)
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* Graphics display (8 pixels)
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*/
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#ifdef __i386
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inline
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#endif
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#ifdef GLOBAL_VARS
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static void draw_graphics(void)
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#else
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void MOS6569::draw_graphics(void)
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#endif
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{
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uint8 *p = chunky_ptr + x_scroll;
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uint8 c[4], data;
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@ -1067,11 +925,7 @@ draw_multi:
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* Sprite display
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*/
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#ifdef GLOBAL_VARS
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inline static void draw_sprites(void)
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#else
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inline void MOS6569::draw_sprites(void)
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#endif
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{
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int i;
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int snum, sbit; // Sprite number/bit mask
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