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enable IF eflag

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a1ive 2025-02-18 14:45:19 +09:00
parent f81ab3d94e
commit b923ee83b4
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GPG Key ID: DA9BACF4F462B55D
3 changed files with 13 additions and 10 deletions
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2
disk/biosdisk.c
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@ -43,7 +43,7 @@ call_int13h (struct bootapp_callback_params *params)
__asm__ ("pushf\n\t"
"pop %0\n\t"
: "=r" (eflags));
params->eflags = (eflags & ~CF);
params->eflags = (eflags & ~CF) | IF;
params->vector.interrupt = 0x13;
call_interrupt (params);
}

3
include/bootapp.h
View File

@ -148,6 +148,9 @@ enum eflags
AF = (1 << 4),
ZF = (1 << 6),
SF = (1 << 7),
TF = (1 << 8),
IF = (1 << 9),
DF = (1 << 10),
OF = (1 << 11),
};

18
kern/int13.c
View File

@ -80,7 +80,7 @@ static void int13_get_parameters (struct bootapp_callback_params *params)
params->dh = max_head;
params->dl = num_drives;
DBG2 ("Get parameters: C/H/S = %d/%d/%d, drives = %d\n",
(max_cylinder + 1), (max_head + 1), max_sector, num_drives);
(max_cylinder + 1), (max_head + 1), max_sector, num_drives);
/* Success */
params->ah = 0;
@ -102,7 +102,7 @@ static void int13_get_disk_type (struct bootapp_callback_params *params)
params->dx = (sector_count & 0xffff);
params->ah = drive_type;
DBG2 ("Get disk type: sectors = %#08x, type = %d\n",
sector_count, drive_type);
sector_count, drive_type);
}
/**
@ -144,10 +144,10 @@ int13_get_extended_parameters (struct bootapp_callback_params *params)
disk_params->sectors_per_track = VDISK_SECTORS_PER_TRACK;
disk_params->sectors = VDISK_COUNT;
disk_params->sector_size = VDISK_SECTOR_SIZE;
DBG2 ("Get extended parameters: C/H/S = %d/%d/%d, sectors = %#08llx "
"(%d bytes)\n", disk_params->cylinders, disk_params->heads,
disk_params->sectors_per_track, disk_params->sectors,
disk_params->sector_size);
DBG2 ("Get extended parameters: C/H/S = %d/%d/%d, sectors = %#llx "
"(%d bytes)\n", disk_params->cylinders, disk_params->heads,
disk_params->sectors_per_track, disk_params->sectors,
disk_params->sector_size);
/* Success */
params->ah = 0;
@ -167,7 +167,7 @@ static void int13_extended_read (struct bootapp_callback_params *params)
/* Read from emulated disk */
disk_address = REAL_PTR (params->ds, params->si);
data = REAL_PTR (disk_address->buffer.segment,
disk_address->buffer.offset);
disk_address->buffer.offset);
vdisk_read (disk_address->lba, disk_address->count, data);
/* Success */
@ -193,8 +193,8 @@ void emulate_int13 (struct bootapp_callback_params *params)
/* Populate eflags with a sensible starting value */
__asm__ ("pushf\n\t"
"pop %0\n\t"
: "=r" (eflags));
"pop %0\n\t"
: "=r" (eflags));
params->eflags = (eflags & ~CF);
/* Handle command */