#help_index "Call"
asm {
_HI_CALL::
PUSH RBP
MOV RBP,RSP
MOV RAX,U64 16[RBP]
TEST RAX,RAX
JZ @@05
CALL RAX
@@05: POP RBP
RET1 8
//************************************
_HI_MEMCPY::
PUSH RBP
MOV RBP,RSP
PUSH RSI
PUSH RDI
CLD
MOV RDI,U64 SF_ARG1[RBP]
MOV RSI,U64 SF_ARG2[RBP]
MOV RCX,U64 SF_ARG3[RBP]
REP_MOVSB
MOV RAX,RDI
POP RDI
POP RSI
POP RBP
RET1 24
}
_extern _HI_CALL I64 HiCall(U8 *machine_code);
_extern _HI_MEMCPY U8 *HiMemCpy(U8 *dst,U8 *src,I64 cnt);
#help_index "Boot"
public U0 BootRAM(U8 *filename=NULL)
{//Softboot Kernel.BIN file. No hardware reset.
I64 size;
CKernel *hi_image,*lo_image=mem_boot_base-sizeof(CBinFile),
reg *sys_ram_reboot;
if (!filename)
filename="::/" KERNEL_BIN_C;
do if (!(hi_image=FileRead(filename,&size))) return;
while (hi_image<0x100000); //If alloc from low 640K, just get another copy.
do sys_ram_reboot=MAlloc(SYS_RAM_REBOOT_END-SYS_RAM_REBOOT,Fs->code_heap);
while (sys_ram_reboot<0x100000);
hi_image->boot_src=BOOT_SRC_RAM;
hi_image->boot_blk=0;
hi_image->boot_patch_table_base=lo_image(U8 *)+hi_image->h.patch_table_offset;
hi_image->sys_run_level =lo_image->sys_run_level&(RLF_VGA|RLF_16BIT);
MemCpy(&hi_image->start,&lo_image->start,
sizeof(CKernel)-offset(CKernel.start));
CLI
if (mp_cnt>1)
MPHalt;
HiMemCpy(sys_ram_reboot,SYS_RAM_REBOOT,SYS_RAM_REBOOT_END-SYS_RAM_REBOOT);
HiMemCpy(lo_image,hi_image,size);
HiCall(sys_ram_reboot);
}