C++ (Cpp) call16_int示例

示例#1

文件： disk.c 项目： joshsyu/PQEMU

// IBM/MS eject media
static void
disk_1346(struct bregs *regs, struct drive_s *drive_g)
{
    if (regs->dl < EXTSTART_CD) {
        // Volume Not Removable
        disk_ret(regs, DISK_RET_ENOTREMOVABLE);
        return;
    }

    int cdid = regs->dl - EXTSTART_CD;
    u8 locks = GET_EBDA(cdrom_locks[cdid]);
    if (locks != 0) {
        disk_ret(regs, DISK_RET_ELOCKED);
        return;
    }

    // FIXME should handle 0x31 no media in device
    // FIXME should handle 0xb5 valid request failed

    // Call removable media eject
    struct bregs br;
    memset(&br, 0, sizeof(br));
    br.ah = 0x52;
    call16_int(0x15, &br);

    if (br.ah || br.flags & F_CF) {
        disk_ret(regs, DISK_RET_ELOCKED);
        return;
    }
    disk_ret(regs, DISK_RET_SUCCESS);
}

示例#2

文件： ramdisk.c 项目： joshsyu/PQEMU

static int
ramdisk_copy(struct disk_op_s *op, int iswrite)
{
    u32 offset = GET_GLOBAL(op->drive_g->cntl_id);
    offset += (u32)op->lba * DISK_SECTOR_SIZE;
    u64 opd = GDT_DATA | GDT_LIMIT(0xfffff) | GDT_BASE((u32)op->buf_fl);
    u64 ramd = GDT_DATA | GDT_LIMIT(0xfffff) | GDT_BASE(offset);

    u64 gdt[6];
    if (iswrite) {
        gdt[2] = opd;
        gdt[3] = ramd;
    } else {
        gdt[2] = ramd;
        gdt[3] = opd;
    }

    // Call int 1587 to copy data.
    struct bregs br;
    memset(&br, 0, sizeof(br));
    br.flags = F_CF|F_IF;
    br.ah = 0x87;
    br.es = GET_SEG(SS);
    br.si = (u32)gdt;
    br.cx = op->count * DISK_SECTOR_SIZE / 2;
    call16_int(0x15, &br);

    if (br.flags & F_CF)
        return DISK_RET_EBADTRACK;
    return DISK_RET_SUCCESS;
}

示例#3

文件： bootsplash.c 项目： Ruinland/PQEMU

// Call int10 vga handler.
static void
call16_int10(struct bregs *br)
{
    br->flags = F_IF;
    start_preempt();
    call16_int(0x10, br);
    finish_preempt();
}

示例#4

文件： output.c 项目： 3a9LL/panda

// Show a character on the screen.
static void
screenc(char c)
{
    struct bregs br;
    memset(&br, 0, sizeof(br));
    br.flags = F_IF;
    br.ah = 0x0e;
    br.al = c;
    call16_int(0x10, &br);
}

示例#5

文件： post.c 项目： AmesianX/WinQEMU

// Begin the boot process by invoking an int0x19 in 16bit mode.
void VISIBLE32FLAT
startBoot(void)
{
    // Clear low-memory allocations (required by PMM spec).
    memset((void*)BUILD_STACK_ADDR, 0, BUILD_EBDA_MINIMUM - BUILD_STACK_ADDR);

    dprintf(3, "Jump to int19\n");
    struct bregs br;
    memset(&br, 0, sizeof(br));
    br.flags = F_IF;
    call16_int(0x19, &br);
}

示例#6

文件： post.c 项目： Truefans/KVMGT-seabios

// Begin the boot process by invoking an int0x19 in 16bit mode.
void VISIBLE32FLAT
startBoot(void)
{
    // Clear low-memory allocations (required by PMM spec).
    memset((void*)BUILD_STACK_ADDR, 0, BUILD_EBDA_MINIMUM - BUILD_STACK_ADDR);

    dprintf(3, "Jump to int19\n");
    //Tell QEMU the POST is done
    pci_config_writel(pci_to_bdf(0, 0, 0), PCI_VENDOR_ID, 0xB105DEAD);
    struct bregs br;
    memset(&br, 0, sizeof(br));
    br.flags = F_IF;
    call16_int(0x19, &br);
}