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Diffstat (limited to 'kernel/interrupts/idt.dats')
-rw-r--r--kernel/interrupts/idt.dats16
1 files changed, 8 insertions, 8 deletions
diff --git a/kernel/interrupts/idt.dats b/kernel/interrupts/idt.dats
index fa141f6..c939875 100644
--- a/kernel/interrupts/idt.dats
+++ b/kernel/interrupts/idt.dats
@@ -24,21 +24,21 @@ in
println!("DEFAULT EXCEPTION HANDLER - ERROR CODE")
end
-var idt : @[idt_entry_t][256] // The table
+var idt : @[idt_entry_t][IDT_MAX_DESCRIPTORS] // The table
var idtr : idtr_t // interrupt descriptor table register instance
-fun idt_set_descriptor {l:addr} {n : nat | n < 256} (vector: int n, isr: (&int_frame) -> void, flags: uint8) : void = let
- extern praxi __assert{l:addr} (ptr: ptr (l)): vtakeout0 (@[idt_entry_t][256]@l)
+fun idt_set_descriptor {n : nat | n < IDT_MAX_DESCRIPTORS} (vector: int n, isr: uint64, flags: uint8) : void = let
+ extern praxi __assert{l:addr} (ptr: ptr (l)): vtakeout0 (@[idt_entry_t][IDT_MAX_DESCRIPTORS]@l)
prval (pf, fpf) = __assert (addr@(idt))
val x = $UN.cast{uint64}(0xFFFF)
val y = $UN.cast{uint64}(0xFFFFFFF)
val entry = @{
- isr_low = $UN.cast($UN.cast{uint64}(isr) land x),
+ isr_low = $UN.cast(isr land x),
kernel_cs = $UN.cast(0x08),
ist = $UN.cast(0),
attributes = flags,
- isr_mid = $UN.cast(($UN.cast{uint64}(isr) >> 16) land x),
- isr_high = $UN.cast(($UN.cast{uint64}(isr) >> 32) land y),
+ isr_mid = $UN.cast((isr >> 16) land x),
+ isr_high = $UN.cast((isr >> 32) land y),
reserved = $UN.cast(0)
}
in
@@ -58,10 +58,10 @@ extern fun setup(idtr : idtr_t) : void = "ext#"
implement idt_init() : void = let
extern praxi __assert{l:addr} (ptr: ptr (l)): vtakeout0 (idtr_t@l)
prval (pf, fpf) = __assert (addr@(idtr))
- fun loop {n : nat | n <= 32} (i : int n) : void = if (i < 32) then (idt_set_descriptor(i,default_exception_handler,$UN.cast(TRAP_GATE_FLAGS)); loop(i + 1))
+ fun loop {n : nat | n <= 32} (i : int n) : void = if (i < 32) then (idt_set_descriptor(i,$UN.cast(default_exception_handler),$UN.cast(TRAP_GATE_FLAGS)); loop(i + 1))
in
idtr.base := addr@(idt);
- idtr.limit := $UN.cast{uint16}(8 * 256);
+ idtr.limit := $UN.cast(8 * IDT_MAX_DESCRIPTORS);
loop(0);
setup(idtr);
let prval () = fpf(pf) in end