diff options
Diffstat (limited to 'asm/int.s')
| -rw-r--r-- | asm/int.s | 135 |
1 files changed, 94 insertions, 41 deletions
@@ -17,11 +17,48 @@ .global int15 .global int128 +.global int129 +.global int255 + +.global exc0 +.global exc1 +.global exc2 +.global exc3 +.global exc4 +.global exc5 +.global exc6 +.global exc7 +.global exc8 +.global exc9 +.global exc10 +.global exc11 +.global exc12 +.global exc13 +.global exc14 +.global exc15 +.global exc16 +.global exc17 +.global exc18 //temporary .global asm_mouse_handler .global asm_kb_handler +asm_kb_handler: + push %eax + mov $0x0,%eax + in $0x60,%al + pop %eax + ret + +asm_mouse_handler: + push %eax + mov $0x0,%eax + in $0x60,%al + pop %eax + ret + +/////////////// // nothing to ack .macro ack0 @@ -44,17 +81,9 @@ pop %eax // load original .endm -// ignore return value -.macro ret0 - add $4,%esp -.endm -// put return value in %eax -.macro ret1 - pop %eax -.endm -.macro intx ack retx num func +.macro intx ack num func /* Once we arrived here the stack already contains 3x 32bit values, @@ -81,6 +110,8 @@ push $0x666 //make room for potential C functions 'return value'. //we use eax already for esp (so we can context switch) + push $0x0 //indicate if we want to return the value in ebx 0x0=NO + pusha //Push all standard registers 8 regs x 4bytes/32bit push %ds //Push data segment push %es //etc... @@ -103,42 +134,64 @@ pop %ds popa - \retx // potentially set return value to eax to return to the caller + cmp $0x0,(%esp) + je skip\num + pop %ebx + pop %ebx + jmp ret\num + skip\num: + add $8,%esp // potentially set return value to eax to return to the caller + ret\num: iret // pops the return instruction pointer, return code segment selector, and EFLAGS image from the stack .endm -int0: intx ack1 ret0 $0 interrupt_handler -int1: intx ack1 ret0 $1 interrupt_handler -int2: intx ack1 ret0 $2 interrupt_handler -int3: intx ack1 ret0 $3 interrupt_handler -int4: intx ack1 ret0 $4 interrupt_handler -int5: intx ack1 ret0 $5 interrupt_handler -int6: intx ack1 ret0 $6 interrupt_handler -int7: intx ack1 ret0 $7 interrupt_handler - -int8: intx ack2 ret0 $8 interrupt_handler -int9: intx ack2 ret0 $9 interrupt_handler -int10: intx ack2 ret0 $10 interrupt_handler -int11: intx ack2 ret0 $11 interrupt_handler -int12: intx ack2 ret0 $12 interrupt_handler -int13: intx ack2 ret0 $13 interrupt_handler -int14: intx ack2 ret0 $14 interrupt_handler -int15: intx ack2 ret0 $15 interrupt_handler - -int128: intx ack0 ret1 $128 interrupt_handler +.macro excx func + call \func + jmp . +.endm -asm_kb_handler: - push %eax - mov $0x0,%eax - in $0x60,%al - pop %eax - ret +int0: intx ack1 $0 interrupt_handler +int1: intx ack1 $1 interrupt_handler +int2: intx ack1 $2 interrupt_handler +int3: intx ack1 $3 interrupt_handler +int4: intx ack1 $4 interrupt_handler +int5: intx ack1 $5 interrupt_handler +int6: intx ack1 $6 interrupt_handler +int7: intx ack1 $7 interrupt_handler + +int8: intx ack2 $8 interrupt_handler +int9: intx ack2 $9 interrupt_handler +int10: intx ack2 $10 interrupt_handler +int11: intx ack2 $11 interrupt_handler +int12: intx ack2 $12 interrupt_handler +int13: intx ack2 $13 interrupt_handler +int14: intx ack2 $14 interrupt_handler +int15: intx ack2 $15 interrupt_handler + +int128: intx ack0 $128 interrupt_handler +int129: intx ack0 $129 interrupt_handler + +int255: intx ack0 $255 interrupt_handler + +exc0: excx exception_handle_0 +exc1: excx exception_handle_1 +exc2: excx exception_handle_2 +exc3: excx exception_handle_3 +exc4: excx exception_handle_4 +exc5: excx exception_handle_5 +exc6: excx exception_handle_6 +exc7: excx exception_handle_7 +exc8: excx exception_handle_8 +exc9: excx exception_handle_9 +exc10: excx exception_handle_10 +exc11: excx exception_handle_11 +exc12: excx exception_handle_12 +exc13: excx exception_handle_13 +exc14: excx exception_handle_14 +exc15: excx exception_handle_15 +exc16: excx exception_handle_16 +exc17: excx exception_handle_17 +exc18: excx exception_handle_18 -asm_mouse_handler: - push %eax - mov $0x0,%eax - in $0x60,%al - pop %eax - ret |