Nigel/BarinkOS
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Interactive supervisor mode

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To ease the pain of debuggin I can now interact with the system through a
very simplistic terminal. Hopefully things can be tested more easily by activating
the piece through a simple command. The max characters for a command is 10.

To achieve this I have had to make the following changes.
- Changed IRQ to update a global status variable
- Added a standalone keyboard driver with getKey functions
- Changed the main kernel loop to display a prompt
- Added a strncmp function to the clib/string file
This commit is contained in:
Nigel Barink
2021-12-28 19:47:32 +01:00
parent 88cc1d75bb
commit 0d8ef065e0
8 changed files with 215 additions and 53 deletions
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6
Makefile
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@ -5,7 +5,7 @@ CC = ${HOME}/opt/cross/bin/i686-elf-gcc
CPP = ${HOME}/opt/cross/bin/i686-elf-g++
CFLAGS = -ffreestanding -O2 -Wall -Wextra
OFILES = $(BUILD_DIR)/boot.o $(BUILD_DIR)/kterm.o $(BUILD_DIR)/kernel.o $(BUILD_DIR)/pit.o $(BUILD_DIR)/PhysicalMemoryManager.o $(BUILD_DIR)/io.o $(BUILD_DIR)/PageDirectory.o $(BUILD_DIR)/gdtc.o $(BUILD_DIR)/idt.o $(BUILD_DIR)/pic.o $(BUILD_DIR)/string.o
OFILES = $(BUILD_DIR)/boot.o $(BUILD_DIR)/kterm.o $(BUILD_DIR)/kernel.o $(BUILD_DIR)/pit.o $(BUILD_DIR)/keyboard.o $(BUILD_DIR)/PhysicalMemoryManager.o $(BUILD_DIR)/io.o $(BUILD_DIR)/PageDirectory.o $(BUILD_DIR)/gdtc.o $(BUILD_DIR)/idt.o $(BUILD_DIR)/pic.o $(BUILD_DIR)/string.o
SRC_DIR = src
BUILD_DIR = build
@ -86,3 +86,7 @@ $(BUILD_DIR)/PhysicalMemoryManager.o:
$(BUILD_DIR)/pit.o:
$(CPP) -c $(SRC_DIR)/kernel/pit.cpp -o $(BUILD_DIR)/pit.o $(CFLAGS) -fno-exceptions -fno-rtti
$(BUILD_DIR)/keyboard.o:
$(CPP) -c $(SRC_DIR)/kernel/keyboard/keyboard.cpp -o $(BUILD_DIR)/keyboard.o $(CFLAGS) -fno-exceptions -fno-rtti