Messages in this thread | | | From | Pete Clements <> | Subject | 2.3.31 fails compile (i386 bbootsect.s) | Date | Mon, 11 Oct 1999 22:00:21 -0400 (EDT) |
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FYI:
make[1]: Entering directory `/hdb3/usr/src/linux-2.3.21/arch/i386/boot' gcc -D__KERNEL__ -I/hdb3/usr/src/linux-2.3.21/include -E -D__BIG_KERNEL__ -traditional -DSVGA_MODE=NORMAL_VGA bootsect.S -o bbootsect.s as -o bbootsect.o bbootsect.s bbootsect.s: Assembler messages: bbootsect.s:586: Error: base/index register must be 32 bit register bbootsect.s:594: Error: base/index register must be 32 bit register bbootsect.s:595: Error: base/index register must be 32 bit register bbootsect.s:596: Error: base/index register must be 32 bit register bbootsect.s:852: Error: base/index register must be 32 bit register make[1]: *** [bbootsect.o] Error 1
#gcc -v Reading specs from /usr/lib/gcc-lib/i486-linux/2.7.2.3/specs gcc version 2.7.2.3
#as -v GNU assembler version 2.9.1 (i486-linux), using BFD version 2.9.1.0.19
bbootsect.s 580 #Segments are as follows: ds = es = ss = cs - INITSEG, fs = 0, 581 #and gs is unused. 582 583 movw %cx, %fs # set fs to 0 584 movw $0x78, %bx # fs:bx is parameter table address 585 pushw %ds 586 ldsw %fs:(%bx), %si # ds:si is source 587 movb $3, %cl # copy 12 bytes 588 cld 589 pushw %di # di = 0x4000-12. 590 rep 591 movsl 592 popw %di 593 popw %ds 594 movb $36, 0x4(%di) # patch sector count 595 movw %di, %fs:(%bx) 596 movw %es, %fs:2(%bx) 597
847 #print_hex is for debugging purposes, and prints the word 848 #pointed to by ss:bp in hexadecimal. 849 850 print_hex: 851 movw $4, %cx # 4 hex digits 852 movw (%bp), %dx # load word into dx 853 print_digit: 854 rolw $4, %dx # rotate to use low 4 bits 855 movw $0xe0f, %ax # ah = request 856 andb %dl, %al # al = mask for nybble 857 addb $0x90, %al # convert al to ascii hex 858 daa # in only four instructions! 859 adc $0x40, %al 860 daa 861 int $0x10 862 loop print_digit 863 ret 864
-- Pete Clements clem@clem.digital.net
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