From f81de2bfe8d20538802b38e53670b8f124cfff17 Mon Sep 17 00:00:00 2001
From: Nero <41307858+nero@users.noreply.github.com>
Date: Sun, 27 Oct 2019 18:59:42 +0000
Subject: [PATCH] Rename kernel to bdos

---
 Makefile                     | 13 +++++++------
 {kernel => bdos}/con86.asm   |  0
 {kernel => bdos}/disk.asm    |  0
 {kernel => bdos}/dump.asm    |  0
 {kernel => bdos}/exec.asm    |  0
 {kernel => bdos}/fcb.asm     |  0
 {kernel => bdos}/main.asm    |  0
 {kernel => bdos}/string.asm  |  0
 {kernel => bdos}/syscall.asm |  0
 bios/8086.asm                |  8 ++++----
 boot/fat.asm                 |  2 +-
 11 files changed, 12 insertions(+), 11 deletions(-)
 rename {kernel => bdos}/con86.asm (100%)
 rename {kernel => bdos}/disk.asm (100%)
 rename {kernel => bdos}/dump.asm (100%)
 rename {kernel => bdos}/exec.asm (100%)
 rename {kernel => bdos}/fcb.asm (100%)
 rename {kernel => bdos}/main.asm (100%)
 rename {kernel => bdos}/string.asm (100%)
 rename {kernel => bdos}/syscall.asm (100%)

diff --git a/Makefile b/Makefile
index 115d588..47bf6d4 100644
--- a/Makefile
+++ b/Makefile
@@ -1,8 +1,9 @@
 FLOPPY = 360
-BIOS = 0xFA00
+
+RAM = 0x10000
 
 PROGRAMS = $(patsubst %.asm,%.com,$(wildcard com/*.asm))
-DISTFILES = rdos.bin $(PROGRAMS)
+DISTFILES = bdos.bin $(PROGRAMS)
 ROMS =
 
 QEMU_ARCH = $(shell uname -m)
@@ -11,7 +12,7 @@ QEMU_ARGS = $(addprefix --option-rom ,$(ROMS))
 
 NASM = nasm
 NASM_ARGS = -s -Ilib -Plib/nasmcomp.asm -w-macro-params
-NASM_ARGS += -DBIOS=$(BIOS)
+NASM_ARGS += -DRAM=$(RAM)
 
 EMUL = utils/emul
 
@@ -32,9 +33,9 @@ endif
 
 default: fdimage.img
 
-# Kernel image
-rdos.bin: kernel/*.asm lib/*.asm
-	$(NASM) $(NASM_ARGS) -o $@ -I kernel kernel/main.asm
+# BDOS image
+bdos.bin: bdos/*.asm lib/*.asm
+	$(NASM) $(NASM_ARGS) -o $@ -I bdos bdos/main.asm
 
 # Boot sectors
 boot/%.bs: boot/%.asm
diff --git a/kernel/con86.asm b/bdos/con86.asm
similarity index 100%
rename from kernel/con86.asm
rename to bdos/con86.asm
diff --git a/kernel/disk.asm b/bdos/disk.asm
similarity index 100%
rename from kernel/disk.asm
rename to bdos/disk.asm
diff --git a/kernel/dump.asm b/bdos/dump.asm
similarity index 100%
rename from kernel/dump.asm
rename to bdos/dump.asm
diff --git a/kernel/exec.asm b/bdos/exec.asm
similarity index 100%
rename from kernel/exec.asm
rename to bdos/exec.asm
diff --git a/kernel/fcb.asm b/bdos/fcb.asm
similarity index 100%
rename from kernel/fcb.asm
rename to bdos/fcb.asm
diff --git a/kernel/main.asm b/bdos/main.asm
similarity index 100%
rename from kernel/main.asm
rename to bdos/main.asm
diff --git a/kernel/string.asm b/bdos/string.asm
similarity index 100%
rename from kernel/string.asm
rename to bdos/string.asm
diff --git a/kernel/syscall.asm b/bdos/syscall.asm
similarity index 100%
rename from kernel/syscall.asm
rename to bdos/syscall.asm
diff --git a/bios/8086.asm b/bios/8086.asm
index 8921404..fbd41b6 100644
--- a/bios/8086.asm
+++ b/bios/8086.asm
@@ -1,9 +1,9 @@
-ORG BIOS
+ORG (RAM - 0x0800)
 CPU 8086
 
-DISKCX: EQU 0x40
-DISKDX: EQU 0x42
-DISKBX: EQU 0x44
+DISKCX: EQU 0x8
+DISKDX: EQU 0xA
+DISKBX: EQU 0xC
 
 JMP NEAR BOOT
 JMP NEAR WBOOT
diff --git a/boot/fat.asm b/boot/fat.asm
index 03b8b21..71a2ab4 100644
--- a/boot/fat.asm
+++ b/boot/fat.asm
@@ -234,7 +234,7 @@ error:
   int 0x19
 
 kernel_name:
-  db "RDOS    BIN"
+  db "BDOS    BIN"
 
 times (0x1FE - ($-$$)) db 0