1991/0703/pc/l.s (diff list | history)

1991/0702/sys/src/9/pc/l.s:162,164 – 1991/0703/sys/src/9/pc/l.s:162,300 (short | long | prev | next)
1991/0702		MOVL b+4(FP),AX OUTB RET
1991/0703		/* * test and set */ TEXT tas(SB),$0 MOVL $0xdeadead,AX MOVL l+0(FP),BX XCHGL AX,(BX) RET /* * load the idt */ GLOBL idtptr(SB),$6 TEXT lidt(SB),$0 MOVL t+0(FP),AX MOVL AX,idtptr+2(SB) MOVL l+4(FP),AX MOVW AX,idtptr(SB) MOVL idtptr(SB),IDTR RET /* * load the gdt */ GLOBL gdtptr(SB),$6 TEXT lgdt(SB),$0 MOVL t+0(FP),AX MOVL AX,gdtptr+2(SB) MOVL l+4(FP),AX MOVW AX,gdtptr(SB) MOVL gdtptr(SB),GDTR RET /* * special traps */ TEXT intr0(SB),$0 PUSHL $0 PUSHL $0 JMP intrcommon TEXT intr1(SB),$0 PUSHL $0 PUSHL $1 JMP intrcommon TEXT intr2(SB),$0 PUSHL $0 PUSHL $2 JMP intrcommon TEXT intr3(SB),$0 PUSHL $0 PUSHL $3 JMP intrcommon TEXT intr4(SB),$0 PUSHL $0 PUSHL $4 JMP intrcommon TEXT intr5(SB),$0 PUSHL $0 PUSHL $5 JMP intrcommon TEXT intr6(SB),$0 PUSHL $0 PUSHL $6 JMP intrcommon TEXT intr7(SB),$0 PUSHL $0 PUSHL $7 JMP intrcommon TEXT intr8(SB),$0 PUSHL $8 JMP intrscommon TEXT intr9(SB),$0 PUSHL $0 PUSHL $9 JMP intrcommon TEXT intr10(SB),$0 PUSHL $10 JMP intrscommon TEXT intr11(SB),$0 PUSHL $11 JMP intrscommon TEXT intr12(SB),$0 PUSHL $12 JMP intrscommon TEXT intr13(SB),$0 PUSHL $13 JMP intrscommon TEXT intr14(SB),$0 PUSHL $14 JMP intrscommon TEXT intr15(SB),$0 PUSHL $0 PUSHL $15 JMP intrcommon TEXT intr16(SB),$0 PUSHL $0 PUSHL $16 JMP intrcommon TEXT intrbad(SB),$0 PUSHL $0 PUSHL $0x1ff JMP intrcommon intrcommon: PUSHL DS PUSHAL LEAL 0(SP),AX PUSHL AX CALL trap(SB) POPL AX POPAL POPL DS ADDL $8,SP /* error code and trap type */ IRETL RET intrscommon: PUSHL DS PUSHAL LEAL 0(SP),AX PUSHL AX CALL trap(SB) POPL AX POPAL POPL DS ADDL $8,SP /* error code and trap type */ IRETL RET /* * turn on interrupts */ TEXT sti(SB),$0 STI RET