return;                s->vbe_regs[VBE_DISPI_INDEX_VIRT_WIDTH] = w;                s->vbe_regs[VBE_DISPI_INDEX_VIRT_HEIGHT] = h;                s->vbe_line_offset = line_offset;            }            break;        case VBE_DISPI_INDEX_X_OFFSET:        case VBE_DISPI_INDEX_Y_OFFSET:            {                int x;                s->vbe_regs[s->vbe_index] = val;                s->vbe_start_addr = s->vbe_line_offset * s->vbe_regs[VBE_DISPI_INDEX_Y_OFFSET];                x = s->vbe_regs[VBE_DISPI_INDEX_X_OFFSET];                if (s->vbe_regs[VBE_DISPI_INDEX_BPP] == 4)                    s->vbe_start_addr += x >> 1;                else                    s->vbe_start_addr += x * ((s->vbe_regs[VBE_DISPI_INDEX_BPP] + 7) >> 3);                s->vbe_start_addr >>= 2;            }            break;        default:            break;        }    }}#endif/* called for accesses between 0xa0000 and 0xc0000 */uint32_t vga_mem_readb(void *opaque, target_phys_addr_t addr){    VGAState *s = opaque;    int memory_map_mode, plane;    uint32_t ret;    /* convert to VGA memory offset */    memory_map_mode = (s->gr[6] >> 2) & 3;    addr &= 0x1ffff;    switch(memory_map_mode) {    case 0:        break;    case 1:        if (addr >= 0x10000)            return 0xff;        addr += s->bank_offset;        break;    case 2:        addr -= 0x10000;        if (addr >= 0x8000)            return 0xff;        break;    default:    case 3:        addr -= 0x18000;        if (addr >= 0x8000)            return 0xff;        break;    }    if (s->sr[4] & 0x08) {        /* chain 4 mode : simplest access */        ret = s->vram_ptr[addr];    } else if (s->gr[5] & 0x10) {        /* odd/even mode (aka text mode mapping) */        plane = (s->gr[4] & 2) | (addr & 1);        ret = s->vram_ptr[((addr & ~1) << 1) | plane];    } else {        /* standard VGA latched access */        s->latch = ((uint32_t *)s->vram_ptr)[addr];        if (!(s->gr[5] & 0x08)) {            /* read mode 0 */            plane = s->gr[4];            ret = GET_PLANE(s->latch, plane);        } else {            /* read mode 1 */            ret = (s->latch ^ mask16[s->gr[2]]) & mask16[s->gr[7]];            ret |= ret >> 16;            ret |= ret >> 8;            ret = (~ret) & 0xff;        }    }    return ret;}static uint32_t vga_mem_readw(void *opaque, target_phys_addr_t addr){    uint32_t v;#ifdef TARGET_WORDS_BIGENDIAN    v = vga_mem_readb(opaque, addr) << 8;    v |= vga_mem_readb(opaque, addr + 1);#else    v = vga_mem_readb(opaque, addr);    v |= vga_mem_readb(opaque, addr + 1) << 8;#endif    return v;}static uint32_t vga_mem_readl(void *opaque, target_phys_addr_t addr){    uint32_t v;#ifdef TARGET_WORDS_BIGENDIAN    v = vga_mem_readb(opaque, addr) << 24;    v |= vga_mem_readb(opaque, addr + 1) << 16;    v |= vga_mem_readb(opaque, addr + 2) << 8;    v |= vga_mem_readb(opaque, addr + 3);#else    v = vga_mem_readb(opaque, addr);    v |= vga_mem_readb(opaque, addr + 1) << 8;    v |= vga_mem_readb(opaque, addr + 2) << 16;    v |= vga_mem_readb(opaque, addr + 3) << 24;#endif    return v;}/* called for accesses between 0xa0000 and 0xc0000 */void vga_mem_writeb(void *opaque, target_phys_addr_t addr, uint32_t val){    VGAState *s = opaque;    int memory_map_mode, plane, write_mode, b, func_select, mask;    uint32_t write_mask, bit_mask, set_mask;#ifdef DEBUG_VGA_MEM    printf("vga: [0x%x] = 0x%02x\n", addr, val);#endif    /* convert to VGA memory offset */    memory_map_mode = (s->gr[6] >> 2) & 3;    addr &= 0x1ffff;    switch(memory_map_mode) {    case 0:        break;    case 1:        if (addr >= 0x10000)            return;        addr += s->bank_offset;        break;    case 2:        addr -= 0x10000;        if (addr >= 0x8000)            return;        break;    default:    case 3:        addr -= 0x18000;        if (addr >= 0x8000)            return;        break;    }    if (s->sr[4] & 0x08) {        /* chain 4 mode : simplest access */        plane = addr & 3;        mask = (1 << plane);        if (s->sr[2] & mask) {            s->vram_ptr[addr] = val;#ifdef DEBUG_VGA_MEM            printf("vga: chain4: [0x%x]\n", addr);#endif            s->plane_updated |= mask; /* only used to detect font change */            cpu_physical_memory_set_dirty(s->vram_offset + addr);        }    } else if (s->gr[5] & 0x10) {        /* odd/even mode (aka text mode mapping) */        plane = (s->gr[4] & 2) | (addr & 1);        mask = (1 << plane);        if (s->sr[2] & mask) {            addr = ((addr & ~1) << 1) | plane;            s->vram_ptr[addr] = val;#ifdef DEBUG_VGA_MEM            printf("vga: odd/even: [0x%x]\n", addr);#endif            s->plane_updated |= mask; /* only used to detect font change */            cpu_physical_memory_set_dirty(s->vram_offset + addr);        }    } else {        /* standard VGA latched access */        write_mode = s->gr[5] & 3;        switch(write_mode) {        default:        case 0:            /* rotate */            b = s->gr[3] & 7;            val = ((val >> b) | (val << (8 - b))) & 0xff;            val |= val << 8;            val |= val << 16;            /* apply set/reset mask */            set_mask = mask16[s->gr[1]];            val = (val & ~set_mask) | (mask16[s->gr[0]] & set_mask);            bit_mask = s->gr[8];            break;        case 1:            val = s->latch;            goto do_write;        case 2:            val = mask16[val & 0x0f];            bit_mask = s->gr[8];            break;        case 3:            /* rotate */            b = s->gr[3] & 7;            val = (val >> b) | (val << (8 - b));            bit_mask = s->gr[8] & val;            val = mask16[s->gr[0]];            break;        }        /* apply logical operation */        func_select = s->gr[3] >> 3;        switch(func_select) {        case 0:        default:            /* nothing to do */            break;        case 1:            /* and */            val &= s->latch;            break;        case 2:            /* or */            val |= s->latch;            break;        case 3:            /* xor */            val ^= s->latch;            break;        }        /* apply bit mask */        bit_mask |= bit_mask << 8;        bit_mask |= bit_mask << 16;        val = (val & bit_mask) | (s->latch & ~bit_mask);    do_write:        /* mask data according to sr[2] */        mask = s->sr[2];        s->plane_updated |= mask; /* only used to detect font change */        write_mask = mask16[mask];        ((uint32_t *)s->vram_ptr)[addr] =            (((uint32_t *)s->vram_ptr)[addr] & ~write_mask) |            (val & write_mask);#ifdef DEBUG_VGA_MEM            printf("vga: latch: [0x%x] mask=0x%08x val=0x%08x\n",                   addr * 4, write_mask, val);#endif            cpu_physical_memory_set_dirty(s->vram_offset + (addr << 2));    }}static void vga_mem_writew(void *opaque, target_phys_addr_t addr, uint32_t val){#ifdef TARGET_WORDS_BIGENDIAN    vga_mem_writeb(opaque, addr, (val >> 8) & 0xff);    vga_mem_writeb(opaque, addr + 1, val & 0xff);#else    vga_mem_writeb(opaque, addr, val & 0xff);    vga_mem_writeb(opaque, addr + 1, (val >> 8) & 0xff);#endif}static void vga_mem_writel(void *opaque, target_phys_addr_t addr, uint32_t val){#ifdef TARGET_WORDS_BIGENDIAN    vga_mem_writeb(opaque, addr, (val >> 24) & 0xff);    vga_mem_writeb(opaque, addr + 1, (val >> 16) & 0xff);    vga_mem_writeb(opaque, addr + 2, (val >> 8) & 0xff);    vga_mem_writeb(opaque, addr + 3, val & 0xff);#else    vga_mem_writeb(opaque, addr, val & 0xff);    vga_mem_writeb(opaque, addr + 1, (val >> 8) & 0xff);    vga_mem_writeb(opaque, addr + 2, (val >> 16) & 0xff);    vga_mem_writeb(opaque, addr + 3, (val >> 24) & 0xff);#endif}typedef void vga_draw_glyph8_func(uint8_t *d, int linesize,                             const uint8_t *font_ptr, int h,                             uint32_t fgcol, uint32_t bgcol);typedef void vga_draw_glyph9_func(uint8_t *d, int linesize,                                  const uint8_t *font_ptr, int h,                                  uint32_t fgcol, uint32_t bgcol, int dup9);typedef void vga_draw_line_func(VGAState *s1, uint8_t *d,                                const uint8_t *s, int width);#define DEPTH 8#include "vga_template.h"#define DEPTH 15#include "vga_template.h"#define BGR_FORMAT#define DEPTH 15#include "vga_template.h"#define DEPTH 16#include "vga_template.h"#define BGR_FORMAT#define DEPTH 16#include "vga_template.h"#define DEPTH 32#include "vga_template.h"#define BGR_FORMAT#define DEPTH 32#include "vga_template.h"static unsigned int rgb_to_pixel8_dup(unsigned int r, unsigned int g, unsigned b){    unsigned int col;    col = rgb_to_pixel8(r, g, b);    col |= col << 8;    col |= col << 16;    return col;}static unsigned int rgb_to_pixel15_dup(unsigned int r, unsigned int g, unsigned b){    unsigned int col;    col = rgb_to_pixel15(r, g, b);    col |= col << 16;    return col;}static unsigned int rgb_to_pixel15bgr_dup(unsigned int r, unsigned int g,                                          unsigned int b){    unsigned int col;    col = rgb_to_pixel15bgr(r, g, b);    col |= col << 16;    return col;}static unsigned int rgb_to_pixel16_dup(unsigned int r, unsigned int g, unsigned b){    unsigned int col;    col = rgb_to_pixel16(r, g, b);    col |= col << 16;    return col;}static unsigned int rgb_to_pixel16bgr_dup(unsigned int r, unsigned int g,                                          unsigned int b){    unsigned int col;    col = rgb_to_pixel16bgr(r, g, b);    col |= col << 16;    return col;}static unsigned int rgb_to_pixel32_dup(unsigned int r, unsigned int g, unsigned b){    unsigned int col;    col = rgb_to_pixel32(r, g, b);    return col;}static unsigned int rgb_to_pixel32bgr_dup(unsigned int r, unsigned int g, unsigned b){    unsigned int col;    col = rgb_to_pixel32bgr(r, g, b);    return col;}/* return true if the palette was modified */static int update_palette16(VGAState *s){    int full_update, i;    uint32_t v, col, *palette;    full_update = 0;    palette = s->last_palette;    for(i = 0; i < 16; i++) {        v = s->ar[i];        if (s->ar[0x10] & 0x80)            v = ((s->ar[0x14] & 0xf) << 4) | (v & 0xf);        else            v = ((s->ar[0x14] & 0xc) << 4) | (v & 0x3f);        v = v * 3;        col = s->rgb_to_pixel(c6_to_8(s->palette[v]),                              c6_to_8(s->palette[v + 1]),                              c6_to_8(s->palette[v + 2]));        if (col != palette[i]) {            full_update = 1;            palette[i] = col;        }    }    return full_update;}/* return true if the palette was modified */static int update_palette256(VGAState *s){    int full_update, i;    uint32_t v, col, *palette;    full_update = 0;    palette = s->last_palette;    v = 0;    for(i = 0; i < 256; i++) {        if (s->dac_8bit) {          col = s->rgb_to_pixel(s->palette[v],                                s->palette[v + 1],                                s->palette[v + 2]);        } else {          col = s->rgb_to_pixel(c6_to_8(s->palette[v]),                                c6_to_8(s->palette[v + 1]),                                c6_to_8(s->palette[v + 2]));        }        if (col != palette[i]) {            full_update = 1;            palette[i] = col;        }        v += 3;    }    return full_update;}static void vga_get_offsets(VGAState *s,                            uint32_t *pline_offset,                            uint32_t *pstart_addr,                            uint32_t *pline_compare){    uint32_t start_addr, line_offset, line_compare;#ifdef CONFIG_BOCHS_VBE    if (s->vbe_regs[VBE_DISPI_INDEX_ENABLE] & VBE_DISPI_ENABLED) {        line_offset = s->vbe_line_offset;        start_addr = s->vbe_start_addr;        line_compare = 65535;    } else#endif    {        /* compute line_offset in bytes */        line_offset = s->cr[0x13];        line_offset <<= 3;        /* starting address */        start_addr = s->cr[0x0d] | (s->cr[0x0c] << 8);        /* line compare */        line_compare = s->cr[0x18] |            ((s->cr[0x07] & 0x10) << 4) |            ((s->cr[0x09] & 0x40) << 3);    }    *pline_offset = line_offset;    *pstart_addr = start_addr;    *pline_compare = line_compare;}/* update start_addr and line_offset. Return TRUE if modified */static int update_basic_params(VGAState *s){    int full_update;    uint32_t start_addr, line_offset, line_compare;    full_update = 0;    s->get_offsets(s, &line_offset, &start_addr, &line_compare);    if (line_offset != s->line_offset ||        start_addr != s->start_addr ||        line_compare != s->line_compare) {        s->line_offset = line_offset;        s->start_addr = start_addr;        s->line_compare = line_compare;        full_update = 1;    }    return full_update;}#define NB_DEPTHS 7static inline int get_depth_index(DisplayState *s){    switch(s->depth) {    default:    case 8:        return 0;    case 15:        if (s->bgr)            return 5;        else            return 1;    case 16:        if (s->bgr)            return 6;        else            return 2;    case 32:        if (s->bgr)            return 4;        else            return 3;    }}static vga_draw_glyph8_func *vga_draw_glyph8_table[NB_DEPTHS] = {    vga_draw_glyph8_8,    vga_draw_glyph8_16,    vga_draw_glyph8_16,    vga_draw_glyph8_32,    vga_draw_glyph8_32,    vga_draw_glyph8_16,    vga_draw_glyph8_16,};static vga_draw_glyph8_func *vga_draw_glyph16_table[NB_DEPTHS] = {    vga_draw_glyph16_8,    vga_draw_glyph16_16,    vga_draw_glyph16_16,    vga_draw_glyph16_32,    vga_draw_glyph16_32,    vga_draw_glyph16_16,    vga_draw_glyph16_16,};static vga_draw_glyph9_func *vga_draw_glyph9_table[NB_DEPTHS] = {    vga_draw_glyph9_8,    vga_draw_glyph9_16,    vga_draw_glyph9_16,    vga_draw_glyph9_32,    vga_draw_glyph9_32,    vga_draw_glyph9_16,    vga_draw_glyph9_16,};static const uint8_t cursor_glyph[32 * 4] = {    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,