www.pudn.com > bootloader.rar > vectors.asm

 
;  ======== vectors.asm ======== 
;  Plug in the entry point at RESET in the interrupt vector table 
; 
; 
;  ======== unused ======== 
;  plug inifinite loop -- with nested branches to 
;  disable interrupts -- for all undefined vectors 
; 
 
        .sect ".vectors" 
 
        .ref _c_int00 
 
        .align  0x80            ; must be aligned on page boundary 
 
RESET:                          ; reset vector 
        b   _c_int00 
        nop 
        nop                        ; branch to C entry point 
                                     ; stack size of 200 
nmi:    RETE                    ; enable interrupts and return from one 
                NOP 
                NOP 
                NOP                                     ;NMI~ 
 
                ; software interrupts 
sint17 .space 4*16 
sint18 .space 4*16 
sint19 .space 4*16 
sint20 .space 4*16 
sint21 .space 4*16 
sint22 .space 4*16 
sint23 .space 4*16 
sint24 .space 4*16 
sint25 .space 4*16 
sint26 .space 4*16 
sint27 .space 4*16 
sint28 .space 4*16 
sint29 .space 4*16 
sint30 .space 4*16 
 
int0:   b  int2 
                NOP 
                NOP 
int1:   b  int2 
                NOP 
                NOP 
int2:   RETE 
                NOP 
                NOP 
                NOP 
tint:   RETE 
                NOP 
                NOP 
                NOP 
rint0:  RETE 
                NOP 
                NOP 
                NOP 
xint0:  RETE 
                NOP 
                NOP 
                NOP 
rint1:  RETE 
                NOP 
                NOP 
                NOP 
xint1:  RETE 
                NOP 
                NOP 
                NOP 
int3:   RETE 
                NOP 
                NOP 
                NOP 
                .end