search for: comapi_err

Hi, I would like to use INT22h, function 000Dh, but I found that it is disabled in vector table: in core/comboot.inc: int22_table: [...] dw comapi_err ; 000D clean up then bootstrap [...] The code of this function is present in this file (comapi_chainboot). Why this function is disabled? Regards Piotr Romaniuk PS I am using syslinux-4.04.

...parate this patch into multiple patches, please let me know. diff --git a/core/comboot.inc b/core/comboot.inc index 2ff5f33..0d4f931 100644 --- a/core/comboot.inc +++ b/core/comboot.inc @@ -1067,12 +1067,8 @@ comapi_opendir: mov di,InitRD call mangle_name pop ds - call searchdir - jnz comapi_err ; Didn't find a directory - cmp eax,0 - jz comapi_err ; Found nothing - ;ZF is unset - call alloc_fill_dir + call searchdir4dir + jz comapi_err mov P_EAX,eax mov P_CX,SECTOR_SIZE mov P_SI,si diff --git a/core/ldlinux.asm b/core/ldlinux.asm index 2219d5f..0bd7d0d 100644 --- a/cor...

...2h AX= 001Fh, 0020h, 0021h and 0022h to prepare for the COM32 C functions getcwd(), opendir(), readdir(), and closedir(), respectively. INT22h, AX=001Fh will return a valid value for all variants. INT22h, AX= 0020h, 0021h, and 0022h are only implemented for SYSLINUX while other variants will call comapi_err for these 3. Signed-off-by: Gene Cumm <gene.cumm at gmail.com> --- This is the second try at implementing these calls after feedback on the first. Adds an API call to obtain the current working directory. EXTLINUX will not return the correct value yet however SYSLINUX, ISOLINUX, and PXEL...

...2h AX= 001Eh, 001Fh, 0020h and 0021h to prepare for the COM32 C functions getcwd(), opendir(), readdir(), and closedir(), respectively. INT22h, AX=001Eh will return a valid value for all variants. INT22h, AX= 001Fh, 0020h, and 0021h are only implemented for SYSLINUX while other variants will call comapi_err for these 3. Signed-off-by: Gene Cumm <gene.cumm at gmail.com> --- Adds an API call to obtain the current working directory. EXTLINUX will not return the correct value yet however SYSLINUX, ISOLINUX, and PXELINUX will return the correct value. For the moment, EXTLINUX will ONLY return &q...

...t; diff --git a/core/comboot.inc b/core/comboot.inc index 59db7ec..d6f670c 100644 --- a/core/comboot.inc +++ b/core/comboot.inc @@ -723,13 +723,9 @@ comapi_idle: ; ; INT 22h AX=0014h Local boot ; -%if HAS_LOCALBOOT comapi_localboot: mov ax,P_DX jmp local_boot -%else -comapi_localboot equ comapi_err -%endif ; HAS_LOCALBOOT ; ; INT 22h AX=0015h Feature flags diff --git a/core/config.inc b/core/config.inc index 269e13e..999d3d9 100644 --- a/core/config.inc +++ b/core/config.inc @@ -27,11 +27,6 @@ BAUD_DIVISOR equ 115200 ; Serial port parameter MAX_FKEYS equ 12 ; Number of F-key help file...

...mboot.inc b/core/comboot.inc index d6f670c..ef69c49 100644 --- a/core/comboot.inc +++ b/core/comboot.inc @@ -950,7 +950,7 @@ int22_table: dw comapi_derinfo ; 000A derivative-specific info dw comapi_serialcfg ; 000B get serial port config dw comapi_cleanup ; 000C perform final cleanup - dw comapi_err ; 000D clean up then bootstrap + dw comapi_chainboot ; 000D clean up then bootstrap dw comapi_configfile ; 000E get name of config file dw comapi_ipappend ; 000F get ipappend strings dw comapi_dnsresolv ; 0010 resolve hostname -- 1.7.3.4

...3,6 +1033,18 @@ comapi_getadv: ; comapi_writeadv equ adv_write +; +; INT 22h AX=001Eh Get full name of config file +; +%if IS_SYSLINUX +comapi_configfilefull mov P_ES,cs + mov P_BX,ConfigNameFull + clc + ret +%else +comapi_configfilefull equ comapi_err +%endif + section .data %macro int21 2 @@ -1085,6 +1097,7 @@ int22_table: dw comapi_shufflerm ; 001B cleanup, shuffle and boot to rm dw comapi_getadv ; 001C get pointer to ADV dw comapi_writeadv ; 001D write A...

.../core/comboot.inc +++ b/core/comboot.inc @@ -915,6 +915,13 @@ comapi_shufraw: mov ecx,P_ECX jmp shuffle_and_boot_raw +; +; INT 22h AX=0025h Initialize the ADV structure +; +comapi_initadv: + call adv_init + ret + section .data16 %macro int21 2 @@ -974,6 +981,7 @@ int22_table: dw comapi_err ; 0022 close directory dw comapi_shufsize ; 0023 query shuffler size dw comapi_shufraw ; 0024 cleanup, shuffle and boot raw + dw comapi_initadv ; 0025 initialize adv structure int22_count equ ($-int22_table)/2 APIKeyWait db 0