From 8b90c1f407b4f4aa3802858e23aa90d7dfbe17ad Mon Sep 17 00:00:00 2001
From: Lizzy Fleckenstein <lizzy@vlhl.dev>
Date: Thu, 11 Apr 2024 20:58:38 +0200
Subject: bootinfo struct

---
 stage2/mmap.asm | 24 ++++++------------------
 1 file changed, 6 insertions(+), 18 deletions(-)

(limited to 'stage2/mmap.asm')

diff --git a/stage2/mmap.asm b/stage2/mmap.asm
index 72f188a..b719f84 100644
--- a/stage2/mmap.asm
+++ b/stage2/mmap.asm
@@ -6,6 +6,7 @@ mmap:
 
 	xor ebx, ebx    ; counter for interrupt
 	mov di, MEMMAP
+	xor esi, esi    ; number of regions
 
 .loop:
 	; issue an INT 0x15, EAX = 0xE820 interrupt
@@ -17,32 +18,19 @@ mmap:
 	cmp eax, MAPMAGIC ; detect failure
 	jne .fail
 
-	cmp dword[di+16], 1
-	; jne .next
-
-	cmp dword[di+4], 0
-	jne .keep
-
-	cmp dword[di+0], 0x100000
-	jb .next
-
-.keep:
-	mov dword[di+20], 0
+	inc esi
 	add di, 24
 
-.next:
 	cmp ebx, 0
 	jne .loop
 
 	mov dword[di+0], 0
 	mov dword[di+4], 0
 
-	;mov ax, di
-	;sub ax, MEMMAP
-	;xor dx, dx
-	;mov bx, 24
-	;div bx
-	;mov [MEMMAPCNT], ax
+	mov dword[bootinfo.mmap_len+0], esi
+	mov dword[bootinfo.mmap_len+4], 0
+	mov dword[bootinfo.mmap_ptr+0], MEMMAP
+	mov dword[bootinfo.mmap_ptr+4], 0
 
 	ret
 
-- 
cgit v1.2.3