From 1a2af2cba1e1bbfa990787dc7d1b563f17ae2e58 Mon Sep 17 00:00:00 2001
From: Jeremy Soller <jeremy@system76.com>
Date: Mon, 28 Oct 2019 19:57:50 -0600
Subject: [PATCH] Set REDOXFS_BLOCK variable
---
x86_64/redoxfs.asm | 22 +++++++++++++++++++++-
1 file changed, 21 insertions(+), 1 deletion(-)
diff --git a/x86_64/redoxfs.asm b/x86_64/redoxfs.asm
index 4264b46..8b04b66 100644
--- a/x86_64/redoxfs.asm
+++ b/x86_64/redoxfs.asm
@@ -72,11 +72,15 @@ redoxfs:
times BLOCK_SIZE db 0
.env:
+ db "REDOXFS_BLOCK="
+ .env.block:
+ db "0000000000000000"
+ .env.block_end:
+ db `\n`
db "REDOXFS_UUID="
.env.uuid:
db "00000000-0000-0000-0000-000000000000"
.env.end:
- db 0
redoxfs.open:
mov eax, 0
@@ -107,6 +111,22 @@ redoxfs.open:
mov al, ' '
call print_char
+ mov ebx, (filesystem - boot)/BLOCK_SIZE
+ mov di, redoxfs.env.block_end - 1
+ .block:
+ mov al, bl
+ and al, 0x0F
+ cmp al, 0x0A
+ jb .block.below_0xA
+ add al, 'A' - 0xA - '0'
+ .block.below_0xA:
+ add al, '0'
+ mov [di], al
+ dec di
+ shr ebx, 4
+ test ebx, ebx
+ jnz .block
+
mov di, redoxfs.env.uuid
xor si, si
.uuid:
--
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