diff options
Diffstat (limited to 'core/pm.inc')
| -rw-r--r-- | core/pm.inc | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/core/pm.inc b/core/pm.inc index c6f3c52b..7b98944f 100644 --- a/core/pm.inc +++ b/core/pm.inc @@ -194,6 +194,7 @@ PM_IDT_ptr: dw 8*256-1 ; Length pm_irq: pushad movzx esi,byte [esp+8*4] ; Interrupt number + inc dword [CallbackCtr] mov ebx,.rm jmp enter_rm ; Go to real mode @@ -208,10 +209,28 @@ pm_irq: bits 32 section .textnr .pm: + dec dword [CallbackCtr] + jnz .skip + call [core_pm_hook] +.skip: popad add esp,4 ; Drop interrupt number iretd +; +; Initially, the core_pm_hook does nothing; it is available for the +; threaded derivatives to run the scheduler, or examine the result from +; interrupt routines. +; + global core_pm_null_hook +core_pm_null_hook: + ret + + section .data16 + alignz 4 + global core_pm_hook +core_pm_hook: dd core_pm_null_hook + bits 16 section .text16 ; @@ -441,6 +460,7 @@ pm_init: section .earlybss alignb 8 IDT: resq 256 + global RealModeSSSP RealModeSSSP resd 1 ; Real-mode SS:SP section .gentextnr ; Autogenerated 32-bit code |