| 1,6 → 1,3 |
|---|
| label next_usage_update dword at 0xB008 |
| label timer_ticks dword at 0xFDF0 |
| |
| ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
| ;; IRQ0 HANDLER (TIMER INTERRUPT) ;; |
| ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
| 73,8 → 70,8 |
|---|
| shl ebx, 3 |
| xor eax, eax |
| add ebx, tss0 |
| mov word [0xB004], bx ; selector |
| mov dword [0xB000], eax ; offset |
| mov word [far_jump.sel], bx ; selector |
| mov dword [far_jump.offs], eax ; offset |
| |
| mov al,0x20 ; send End Of Interrupt signal |
| mov dx,0x20 |
| 85,7 → 82,7 |
|---|
| dec byte [0xffff] |
| jz @f |
| .switch: |
| jmp pword [0xB000] |
| jmp pword [far_jump] |
| inc [context_counter] ;noname & halyavin |
| @@: |
| |
| 94,9 → 91,13 |
|---|
| iret |
| |
| |
| |
| uglobal |
| context_counter dd 0 ;noname & halyavin |
| far_jump: |
| .offs dd ? |
| .sel dw ? |
| context_counter dd ? ;noname & halyavin |
| next_usage_update dd ? |
| timer_ticks dd ? |
| endg |
| |
| |