Subversion Repositories HelenOS-historic

Rev

Rev 1100 | Rev 1278 | Go to most recent revision | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 1100 Rev 1212
Line 84... Line 84...
84 
# vectors starting at vector i.
 84 
# vectors starting at vector i.
85 
#
 85 
#
86 
# The handlers setup data segment registers
 86 
# The handlers setup data segment registers
87 
# and call exc_dispatch().
 87 
# and call exc_dispatch().
88 
#
 88 
#
89 
#define INTERRUPT_ALIGN 64
 89 
#define INTERRUPT_ALIGN 128
90 
.macro handler i n
 90 
.macro handler i n
91 
 
 91 
 
92 
.ifeq \i-0x30     # Syscall handler
 92 
.ifeq \i-0x30     # Syscall handler
93 
	push %ds
 93 
	push %ds
94 
	push %es
 94 
	push %es
Line 106... Line 106...
106 
	movw $16,%ax
 106 
	movw $16,%ax
107 
	movw %ax,%ds
 107 
	movw %ax,%ds
108 
	movw %ax,%es
 108 
	movw %ax,%es
109
109
110 
	sti
 110 
	sti
- 
 
 111 
	cmp $2, %edi           # Is this SYS_INT_CONTROL?
- 
 
 112 
	je sys_int_ctrl
- 
 
 113
111 
	call syscall_handler   # syscall_handler(ax,cx,dx,si,di)
 114 
	call syscall_handler   # syscall_handler(ax,cx,dx,si,di)
- 
 
 115 
sysc_end:
112 
	cli
 116 
	cli
113 
	addl $20, %esp         # clean-up of parameters
 117 
	addl $20, %esp         # clean-up of parameters
114
118
115 
	pop %gs
 119 
	pop %gs
116 
	pop %fs
 120 
	pop %fs
117 
	pop %es
 121 
	pop %es
118 
	pop %ds
 122 
	pop %ds
119
123
120 
	CLEAR_NT_FLAG
 124 
	CLEAR_NT_FLAG
121 
	iret
 125 
	iret
- 
 
 126 
sys_int_ctrl:               # Interrupt control
- 
 
 127 
	mov %esp, %eax
- 
 
 128 
	add $44, %eax
- 
 
 129 
	mov %eax, 4(%esp)   # Pointer to flags - 2nd argument
- 
 
 130 
	call ddi_int_control
- 
 
 131 
	jmp sysc_end
122 
.else
132 
.else
123 
	/*
 133 
	/*
124 
	 * This macro distinguishes between two versions of ia32 exceptions.
 134 
	 * This macro distinguishes between two versions of ia32 exceptions.
125 
	 * One version has error word and the other does not have it.
 135 
	 * One version has error word and the other does not have it.
126 
	 * The latter version fakes the error word on the stack so that the
 136 
	 * The latter version fakes the error word on the stack so that the