diff --git a/arch/brute.c b/arch/brute.c
index d418647..10cdb61 100644
--- a/arch/brute.c
+++ b/arch/brute.c
@@ -3,5 +3,5 @@
 ATTR_NORETURN void
 arch_brute()
 {
-    while(1) {}
+    while (1) {}
 }
diff --git a/arch/cpu.asm b/arch/cpu.asm
index c1f6680..f2a291c 100644
--- a/arch/cpu.asm
+++ b/arch/cpu.asm
@@ -10,7 +10,7 @@ global arch_read_cr3
 global arch_write_cr3
 global arch_read_cr8
 global arch_write_cr8
-global arch_cpuid
+global archp_cpuid
 global arch_halt_cpu
 global arch_read_msr
 global arch_write_msr
@@ -102,15 +102,15 @@ mov cr8,rdi
 ret
 
 ;======================
-global arch_halt
-arch_halt:
+global archp_halt
+archp_halt:
 hlt
 
 
 ; ============================
-; extern void KAPI arch_cpuid(uint32* eax, uint32* ebx, uint32* ecx, uint32* edx);
-global arch_cpuid
-arch_cpuid:
+; extern void KAPI archp_cpuid(uint32* eax, uint32* ebx, uint32* ecx, uint32* edx);
+global archp_cpuid
+archp_cpuid:
 push rbp
 mov rbp,rsp
 ; preserve rbx,rcx,rdx
diff --git a/arch/cpu.h b/arch/cpu.h
index 3b3f6ef..75629df 100644
--- a/arch/cpu.h
+++ b/arch/cpu.h
@@ -13,51 +13,12 @@ struct ATTR_PACKED hal_idt_ptr {
     uint64 base;
 };
 
-void KABI out_8(uint16 port, uint8 data);
-
-void KABI out_16(uint16 port, uint16 data);
-
-void KABI out_32(uint16 port, uint32 data);
-
-uint8 KABI in_8(uint16 port);
-
-uint16 KABI in_16(uint16 port);
-
-uint32 KABI in_32(uint16 port);
-
-void KABI flush_gdt(void *gdt_ptr, uint16 code_slct, uint16 data_slct);
-
-void KABI flush_idt(void *idt_ptr);
-
-void KABI flush_tss(uint16 tss_slct);
-
-void KABI cpuid(uint32 *eax, uint32 *ebx, uint32 *ecx, uint32 *edx);
-
-void KABI read_msr(uint32 *ecx, uint32 *edx, uint32 *eax);
-
-void KABI write_msr(uint32 *ecx, uint32 *edx, uint32 *eax);
-
-void KABI sti();
-
-void KABI cli();
-
-uint64 KABI read_cr8();
-
-void KABI write_cr8(uint64 val);
-
-uint64 KABI read_cr3();
-
-void KABI write_cr3(uint64 val);
-
-void KABI flush_tlb();
-
-
 /**
  * ASM declaration
  */
-void KABI arch_cpuid(uint32 *eax, uint32 *ebx, uint32 *ecx, uint32 *edx);
+void KABI archp_cpuid(uint32 *eax, uint32 *ebx, uint32 *ecx, uint32 *edx);
 
-void KABI arch_halt(void);
+void KABI archp_halt(void);
 
 void KABI arch_flush_gdt(struct hal_gdt_ptr *gdt_ptr, uint64 code_slct, uint64 data_slct);
 
diff --git a/arch/intr.c b/arch/intr.c
index 2a411a6..82b40ca 100644
--- a/arch/intr.c
+++ b/arch/intr.c
@@ -73,7 +73,7 @@ populate_idt(void)
 }
 
 void
-arch_intr_init(void)
+archp_intr_init(void)
 {
     uint32 coreid;
     uint32 eax;
@@ -83,7 +83,7 @@ arch_intr_init(void)
 
     // detect APIC first
     eax = 1;
-    arch_cpuid(&eax, &ebx, &ecx, &edx);
+    archp_cpuid(&eax, &ebx, &ecx, &edx);
     if (!(edx & (1u << 9u))) {
         BRUTE("ERROR: APIC is not present.\n");
     }
diff --git a/arch/main.c b/arch/main.c
index 13d4e89..08bceff 100644
--- a/arch/main.c
+++ b/arch/main.c
@@ -5,6 +5,7 @@
 #include <arch/brute.h>
 #include <arch/mlayout.h>
 #include <arch/pmap.h>
+#include <arch/intr.h>
 #include <mm/phys.h>
 
 #include "multiboot2.h"
@@ -60,6 +61,12 @@ proc_mbinfo(void *mb_info)
     if (!mmap_detected) {
         BRUTE("proc_mbinfo: could not find MMAP tag.");
     }
+
+    // initialize interrupts
+    archp_intr_init();
+
+    // initialize memory
+    archp_mem_init();
 }
 
 ATTR_USED void
diff --git a/inc/arch/intr.h b/inc/arch/intr.h
index 3a54a62..ba2ede5 100644
--- a/inc/arch/intr.h
+++ b/inc/arch/intr.h
@@ -36,7 +36,7 @@ struct interrupt_context
  * C declaration
  */
 void
-arch_intr_init(void);
+archp_intr_init(void);
 
 /**
  * Exported Dispatchers for asm code