diff options
Diffstat (limited to 'sw-old/z80')
52 files changed, 2643 insertions, 0 deletions
diff --git a/sw-old/z80/TODO.txt b/sw-old/z80/TODO.txt new file mode 100644 index 0000000..67be671 --- /dev/null +++ b/sw-old/z80/TODO.txt @@ -0,0 +1 @@ +- fix kernel makefile (currently broken) diff --git a/sw-old/z80/arch/include/addresses.h b/sw-old/z80/arch/include/addresses.h new file mode 100644 index 0000000..32f1997 --- /dev/null +++ b/sw-old/z80/arch/include/addresses.h @@ -0,0 +1,15 @@ +#ifndef __ADDRESSES_H__ +#define __ADDRESSES_H__ + +#define ADDR_DEV_ROM_L 0x0000 +#define ADDR_DEV_ROM_H 0x2000 + +#define ADDR_DEV_PIO 0x0010 +#define ADDR_DEV_CTC 0x0020 +#define ADDR_DEV_USART 0x0030 + +#define ADDR_DEV_MMU + +#define ADDR_DEV_RAM 0x8000 + +#endif diff --git a/sw-old/z80/arch/include/sleep.h b/sw-old/z80/arch/include/sleep.h new file mode 100644 index 0000000..bd4214b --- /dev/null +++ b/sw-old/z80/arch/include/sleep.h @@ -0,0 +1,14 @@ +#ifndef __SLEEP_H__ +#define __SLEEP_H__ + +#ifndef F_CPU +#error undefined CPU clock speed +#endif + +#define SLEEP_UNIT ((F_CPU/4)/2) + +#include <stdint.h> + +void usleep(uint16_t microseconds); + +#endif // __SLEEP_H__
\ No newline at end of file diff --git a/sw-old/z80/arch/makefile b/sw-old/z80/arch/makefile new file mode 100644 index 0000000..2763c10 --- /dev/null +++ b/sw-old/z80/arch/makefile @@ -0,0 +1,27 @@ +# Drivers library + +LIB := build/arch.a +SOURCES := $(wildcard *.c) +OBJECTS := $(patsubst %.c,build/%.rel,$(SOURCES)) + +F_CPU := 10000 + +CC := sdcc +AR := sdar +CFLAGS := -mz80 \ + -Iinclude \ + -DDEBUG \ + -DF_CPU=$(F_CPU) + +.PHONY: dirs clean +$(LIB): $(OBJECTS) + $(AR) rcs $@ $(OBJECTS) + +$(OBJECTS): build/%.rel: %.c $(SOURCES) dirs + $(CC) $(CFLAGS) -c $< -o $@ + +dirs: + mkdir -p build + +clean: + - rm -rd build diff --git a/sw-old/z80/arch/sleep.c b/sw-old/z80/arch/sleep.c new file mode 100644 index 0000000..154e7ec --- /dev/null +++ b/sw-old/z80/arch/sleep.c @@ -0,0 +1,16 @@ +#include "sleep.h" + +void usleep(uint16_t microseconds) +{ + __asm + pop hl +loop: + ld bc, #SLEEP_UNIT +unit: + nop + dec bc + jr nz, unit + dec hl + jr nz,loop + __endasm; +}
\ No newline at end of file diff --git a/sw-old/z80/drivers/ctc.c b/sw-old/z80/drivers/ctc.c new file mode 100644 index 0000000..5ac4254 --- /dev/null +++ b/sw-old/z80/drivers/ctc.c @@ -0,0 +1,6 @@ +#include "ctc.h" + +void ctc_control() +{ + +} diff --git a/sw-old/z80/drivers/include/ctc.h b/sw-old/z80/drivers/include/ctc.h new file mode 100644 index 0000000..80e8b4b --- /dev/null +++ b/sw-old/z80/drivers/include/ctc.h @@ -0,0 +1,6 @@ +#ifndef __CTC_H__ +#define __CTC_H__ + +void ctc_control(); + +#endif /* __CTC_H__ */ diff --git a/sw-old/z80/drivers/include/pio.h b/sw-old/z80/drivers/include/pio.h new file mode 100644 index 0000000..ee968d7 --- /dev/null +++ b/sw-old/z80/drivers/include/pio.h @@ -0,0 +1,52 @@ +#ifndef __PIO_H__ +#define __PIO_H__ + +#include "addresses.h" +#include <stdint.h> + +// DEBUG +#define PIO_ASM_INTERFACE + +// ports +#define PIO_A 0 +#define PIO_B 1 + +// registers +#define PIO_REG_DATA 0 +#define PIO_REG_CTRL 2 + +#define PIO_REG_DATA_A 0 // (PIO_A | PIO_REG_PORT) +#define PIO_REG_DATA_B 1 // (PIO_B | PIO_REG_PORT) +#define PIO_REG_CTRL_A 2 // (PIO_A | PIO_REG_CTRL) +#define PIO_REG_CTRL_B 3 // (PIO_B | PIO_REG_CTRL) + +#define PIO_MODE_BYTE_OUT 0 // mode 0 +#define PIO_MODE_BYTE_IN 1 // mode 1 +#define PIO_MODE_BYTE_BI 2 // mode 2 +#define PIO_MODE_BIT_IO 3 // mode 3 + +#define PIO_INT_DISABLE 0 +#define PIO_INT_ACTIVE_HIGH 2 +#define PIO_INT_AND_MODE 4 +#define PIO_INT_ENABLE 8 + +/* functions used internally to interface with the device */ +inline void _pio_write(uint8_t reg, uint8_t data); +inline uint8_t _pio_read(uint8_t reg); + +/* the last argument is needed only for IO mode */ +void pio_set_mode(int port, int mode, uint8_t io); + +void pio_set_interrupts(int port, int control); +void pio_set_interrupts_mask(int port, int control, uint8_t mask); + +// uint8_t pio_read_data(int port); +uint8_t pio_read(int port); +void pio_write(int port, uint8_t data); + +inline int pio_read_pin(int port, uint8_t pin); +inline void pio_write_pin(int port, uint8_t pin); + +// TODO: implement mode (in/out/both) and interrupt vector + +#endif /* __PIO_H__ */ diff --git a/sw-old/z80/drivers/include/usart.h b/sw-old/z80/drivers/include/usart.h new file mode 100644 index 0000000..05aeb4a --- /dev/null +++ b/sw-old/z80/drivers/include/usart.h @@ -0,0 +1,158 @@ +#ifndef __USART_H__ +#define __USART_H__ + +#include "addresses.h" + +#include <stdint.h> +#include <string.h> + +// baudrate clock divisors +// values from TL16C550C datasheet (table 9 for 1.8432 MHz crystal) +#define USART_BAUDRATE_50 2304 +#define USART_BAUDRATE_75 1536 +#define USART_BAUDRATE_110 1047 +#define USART_BAUDRATE_134_5 857 +#define USART_BAUDRATE_150 768 +#define USART_BAUDRATE_300 384 +#define USART_BAUDRATE_600 192 +#define USART_BAUDRATE_1200 96 +#define USART_BAUDRATE_1800 64 +#define USART_BAUDRATE_2000 58 +#define USART_BAUDRATE_2400 48 +#define USART_BAUDRATE_3600 32 +#define USART_BAUDRATE_4800 24 +#define USART_BAUDRATE_7200 16 +#define USART_BAUDRATE_9600 12 +#define USART_BAUDRATE_19200 6 +#define USART_BAUDRATE_38400 3 +#define USART_BAUDRATE_56000 3 + +// parity +#define USART_PARITY_NONE 0 +#define USART_PARITY_EVEN 1 +#define USART_PARITY_ODD 2 + +// stop bits +#define USART_STOP_BITS_1 10 +#define USART_STOP_BITS_15 15 +#define USART_STOP_BITS_2 20 + +// word lenght +#define USART_WORD_LENGTH_5 0 +#define USART_WORD_LENGTH_6 1 +#define USART_WORD_LENGTH_7 2 +#define USART_WORD_LENGTH_8 3 + +// autoflow +#define USART_AUTOFLOW_ALL 3 +#define USART_AUTOFLOW_CTS 2 +#define USART_AUTOFLOW_OFF 0 + +typedef unsigned int uint; +typedef volatile uint8_t register_t; + +/* stuctures for usart registers */ +struct IER +{ + volatile uint received_data_interrupt :1; + volatile uint transmitter_empty_interrupt :1; + volatile uint receiver_line_status_interrupt :1; + volatile uint modem_status_interrupt :1; + volatile uint reserved :4; +}; + +struct IIR +{ + volatile uint interrupt_pending :1; + volatile uint interrupt_id :3; + volatile uint reserved :2; + volatile uint fifos :2; +}; + +struct FCR +{ + volatile uint fifo_enable :1; + volatile uint receiver_fifo_rst :1; + volatile uint trasmitter_fifo_rst :1; + volatile uint dma_mode_select :1; + volatile uint reserved :1; + volatile uint receiver_trigger :2; +}; + +struct LCR +{ + volatile uint word_length :2; + volatile uint stop_bits :1; + volatile uint parity :1; + volatile uint even_parity :1; + volatile uint stick_parity :1; + volatile uint break_control :1; + volatile uint divisor_latch_access :1; +}; + +struct MCR +{ + volatile uint data_terminal_ready :1; + volatile uint request_to_send :1; + volatile uint out1; + volatile uint out2; + volatile uint loop; + volatile uint autoflow :1; + volatile uint reserved :2; +}; + +struct LSR +{ + volatile uint data_ready :1; + volatile uint overrun_error :1; + volatile uint parity_error :1; + volatile uint framing_error :1; + volatile uint break_interrupt :1; + volatile uint transmitter_holder_empty :1; + volatile uint transmitter_empty :1; + volatile uint fifo_recv_error :1; +}; + +struct MSR +{ + volatile uint delta_cts :1; + volatile uint delta_data_set_ready :1; + volatile uint trailing_edge_ring_indicator :1; + volatile uint delta_data_carrier_detect :1; + volatile uint clear_to_send :1; + volatile uint data_set_ready :1; + volatile uint ring_indicator :1; + volatile uint data_carrier_detect :1; +}; + +/* this structure is only for internal use */ +struct _usart_device +{ + register_t buffer; // also used as LSB for divisor latch + struct IER IER; + struct IIR IIR; + struct FCR FCR; + struct LCR LCR; + struct MCR MCR; + struct LSR LSR; + struct MSR MSR; + register_t scratch; +}; + + +// setup functions (wrappers) +void usart_set_baudrate(uint16_t baudrate); +void usart_set_parity(int mode); +void usart_set_stop_bits(int count); +void usart_set_word_length(int length); +void usart_set_autoflow(int mode); + +inline void usart_init(uint16_t baudrate, int parity, int stop_bits); + +void usart_transmit(uint8_t data); +uint8_t usart_receive(); + +int usart_write(uint8_t *data, size_t size); +int usart_read(uint8_t *buffer, size_t count); + +#endif // __USART__H__ diff --git a/sw-old/z80/drivers/makefile b/sw-old/z80/drivers/makefile new file mode 100644 index 0000000..65ded58 --- /dev/null +++ b/sw-old/z80/drivers/makefile @@ -0,0 +1,24 @@ +# Drivers library + +LIB := build/drivers.a +SOURCES := $(wildcard *.c) +OBJECTS := $(patsubst %.c,build/%.rel,$(SOURCES)) + +CC := sdcc +AR := sdar +CFLAGS := -mz80 -Iinclude -I../arch/include -DDEBUG + +.PHONY: dirs rebuild clean +$(LIB): $(OBJECTS) + $(AR) vrcs $@ $(OBJECTS) + +$(OBJECTS): build/%.rel: %.c $(SOURCES) dirs + $(CC) $(CFLAGS) -c $< -o $@ + +rebuild: clean $(LIB) + +dirs: + mkdir -p build + +clean: + - rm -rd build diff --git a/sw-old/z80/drivers/pio.c b/sw-old/z80/drivers/pio.c new file mode 100644 index 0000000..f396e43 --- /dev/null +++ b/sw-old/z80/drivers/pio.c @@ -0,0 +1,84 @@ +#include "pio.h" + +#ifdef PIO_ASM_INTERFACE +// TODO: set inline +void _pio_write(uint8_t reg, uint8_t data) +{ + __asm + ;; pop function arguments data in h, reg in a (l) + pop hl + ld a, l + ;; add ADDR_DEV_PIO to get the device address + add a, #ADDR_DEV_PIO + ld c, a + ;; load data + out (c), h + __endasm; +} + +inline uint8_t _pio_read(uint8_t reg) +{ + // TODO: check "dec sp" + __asm + ;; pop function argument + dec sp + pop hl + ld a, l + ;; add ADDR_DEV_PIO to get the device address + add a, #ADDR_DEV_PIO + ld c, a + ;; read data + in l, (c) + ret + __endasm; +} + +#else + +inline void _pio_write(uint8_t reg, uint8_t data) +{ + *((uint8_t *) (ADDR_DEV_PIO + reg)) = data; +} + +inline uint8_t _pio_read(uint8_t reg) +{ + return *((uint8_t *) (ADDR_DEV_PIO + reg)); +} + +#endif + +void pio_set_mode(int port, int mode, uint8_t io) +{ + // 0x0F is a control sequence to set mode + _pio_write((PIO_REG_CTRL + port), ((mode << 6) | 0x0F)); + + // this mode requires an additional argument that sets + // a mode for each pin + if (mode == PIO_MODE_BIT_IO) { + _pio_write((PIO_REG_CTRL + port), io); + } +} + +void pio_set_interrupts(int port, int control) +{ + // 0x07 is a control sequence to set interrupts + _pio_write((PIO_REG_CTRL + port), (control<<4 | 0x07)); +} + +void pio_set_interrupts_mask(int port, int control, uint8_t mask) +{ + // 0x17 is a control sequence to set interrupts + // AND interpret the next byte as a bitmask + _pio_write((PIO_REG_CTRL + port),(control | 0x97)); + _pio_write((PIO_REG_CTRL + port), mask); +} + +uint8_t pio_read(int port) +{ + return _pio_read((PIO_REG_DATA + port)); +} + +void pio_write(int port, uint8_t data) +{ + _pio_write((PIO_REG_DATA + port), data); +} diff --git a/sw-old/z80/drivers/usart.c b/sw-old/z80/drivers/usart.c new file mode 100644 index 0000000..9a5ee38 --- /dev/null +++ b/sw-old/z80/drivers/usart.c @@ -0,0 +1,91 @@ +#include "usart.h" + +static volatile struct _usart_device *_usart = ((struct _usart_device *) ADDR_DEV_USART); + +void usart_set_baudrate(uint16_t baudrate) +{ + // enable latch access + _usart->LCR.divisor_latch_access = 1; + _usart->buffer = 0x00FF & baudrate; // LSBs + memcpy(&_usart->IER, &(baudrate >>8), 1); + // _usart->IER = 0x00FF & (baudrate >> 8); // MSBs + _usart->LCR.divisor_latch_access = 0; +} + +void usart_set_parity(int mode) +{ + if (mode == USART_PARITY_EVEN) { + _usart->LCR.even_parity = 1; + } + else if (mode == USART_PARITY_ODD) { + _usart->LCR.even_parity = 0; + } + + _usart->LCR.parity = (mode == USART_PARITY_NONE) ? 0 : 1; +} + +void usart_set_stop_bits(int count) +{ + _usart->LCR.stop_bits = (count == USART_STOP_BITS_1) ? 0 : 1; +} + +void usart_word_length(int length) +{ + _usart->LCR.word_length = length; +} + +void usart_set_autoflow(int mode) +{ + _usart->MCR.autoflow = (mode == USART_AUTOFLOW_OFF) ? 0 : 1; + _usart->MCR.data_terminal_ready = (mode == USART_AUTOFLOW_ALL); +} + +inline void usart_init(uint16_t baudrate, int parity, int stop_bits) +{ + usart_set_baudrate(baudrate); + usart_set_parity(parity); + usart_set_stop_bits(stop_bits); + usart_set_autoflow(USART_AUTOFLOW_OFF); +} + +void usart_transmit(uint8_t data) +{ + _usart->buffer = data; + while (_usart->LSR.transmitter_holder_empty == 0); // wait +} + +uint8_t usart_receive() +{ + return _usart->buffer; +} + +int usart_write(uint8_t *data, size_t size) +{ + uint8_t *dp = data; + + while (size--) { + _usart->buffer = *(dp++); + while (_usart->LSR.transmitter_empty); + } + + // TODO: do something that actually counts for sent bytes + return size; +} + +int usart_read(uint8_t *buffer, size_t count) +{ + uint8_t *bp = buffer; + size_t read_count = 0; + + while (count--) { + *(bp++) = _usart->buffer; + // check for errors + if (_usart->LSR.framing_error || _usart->LSR.parity_error) { + bp--; // delete last byte (?) + } else { + read_count++; + } + } + + return read_count; +} diff --git a/sw-old/z80/kernel/crt0.s b/sw-old/z80/kernel/crt0.s new file mode 100644 index 0000000..00c7da1 --- /dev/null +++ b/sw-old/z80/kernel/crt0.s @@ -0,0 +1,103 @@ +;-------------------------------------------------------------------------- +; crt0.s - Generic crt0.s for a Z80 +; +; Copyright (C) 2000, Michael Hope +; +; This library is free software; you can redistribute it and/or modify it +; under the terms of the GNU General Public License as published by the +; Free Software Foundation; either version 2, or (at your option) any +; later version. +; +; This library is distributed in the hope that it will be useful, +; but WITHOUT ANY WARRANTY; without even the implied warranty of +; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +; GNU General Public License for more details. +; +; You should have received a copy of the GNU General Public License +; along with this library; see the file COPYING. If not, write to the +; Free Software Foundation, 51 Franklin Street, Fifth Floor, Boston, +; MA 02110-1301, USA. +; +; As a special exception, if you link this library with other files, +; some of which are compiled with SDCC, to produce an executable, +; this library does not by itself cause the resulting executable to +; be covered by the GNU General Public License. This exception does +; not however invalidate any other reasons why the executable file +; might be covered by the GNU General Public License. +;-------------------------------------------------------------------------- + + .module crt0 + .globl _kmain + + .area _HEADER (ABS) + ;; Reset vector + .org 0 + jp init + + .org 0x08 + reti + .org 0x10 + reti + .org 0x18 + reti + .org 0x20 + reti + .org 0x28 + reti + .org 0x30 + reti + .org 0x38 + reti + + .org 0x100 +init: + ;; Set stack pointer directly above top of memory. + ld sp,#0xFFFF + + ;; Initialise global variables + call gsinit + call _kmain + jp _exit + + ;; Ordering of segments for the linker. + .area _HOME + .area _CODE + .area _INITIALIZER + .area _GSINIT + .area _GSFINAL + + .area _DATA + .area _INITIALIZED + .area _BSEG + .area _BSS + .area _HEAP + + .area _CODE + +__clock:: + ld a,#2 + rst 0x08 + ret + +_exit:: + ;; Exit - special code to the emulator + ld a,#0 + rst 0x08 +1$: + halt + jr 1$ + + .area _GSINIT +gsinit:: + ; ld bc, #l__INITIALIZER + ld a, b + or a, c + jr Z, gsinit_next + ; ld de, #s__INITIALIZED + ; ld hl, #s__INITIALIZER + ldir +gsinit_next: + + .area _GSFINAL + ret + diff --git a/sw-old/z80/kernel/fs/fd.c b/sw-old/z80/kernel/fs/fd.c new file mode 100644 index 0000000..96603ad --- /dev/null +++ b/sw-old/z80/kernel/fs/fd.c @@ -0,0 +1,255 @@ +#include "fs/fd.h" +#include "fs/fdop.h" +#include "fs/fs.h" + +/* from fd.h */ +struct file_desc fd_table[FD_TABLE_SIZE]; +struct uint8_t fd_bmap[FD_TABLE_SIZE / 8]; + +/* File descriptors implementation */ + +int8_t open(const char *path, uint8_t flags) +{ + // TODO + return 0; +} + +size_t ls(int8_t fd, struct dirent *buf, uint8_t all) +{ + // TODO + return 0; +} + +size_t find(int8_t fd, struct dirent *buf, const char *name) +{ + // TODO + return 0; +} + +int8_t mkdir(int8_t fd, const char *name) +{ + // TODO + return 0; +} + +int8_t touch(int8_t fd, const char *name) +{ + // TODO + return 0; +} + +int8_t ln(int8_t fd, const char *name) +{ + // TODO + return 0; +} + +int8_t seek(int8_t fd, fsize_t pos) +{ + // TODO + return 0; +} + +size_t readline(int8_t fd, char *buf, char term) +{ + // TODO + return 0; +} + +int8_t print(int8_t fd, const char *str) +{ + // TODO + return 0; +} + +size_t read(int8_t fd, void *buf, size_t n) +{ + // TODO + return 0; +} + +int8_t write(int8_t fd, const void *buf, size_t n) +{ + // TODO + return 0; +} + +void close(int8_t fd) +{ + // TODO + return 0; +} + +/* Set of file descriptors operations */ +/* Determines if to use the serial interface or the address space */ + +/* Address space section */ + +/* File functions */ + +size_t as_readline(inode_t inode, fsize_t seek, char *buf, char term) +{ + // TODO + return 0; +} + +size_t as_print(inode_t inode, fsize_t seek, const char *str) +{ + // TODO + return 0; +} + +size_t as_append(inode_t inode, fsize_t *seek_ptr, const char *str) +{ + // TODO + return 0; +} + +size_t as_read(inode_t inode, fsize_t seek, void *buf, size_t n) +{ + // TODO + return 0; +} + +size_t as_write(inode_t inode, fsize_t seek, const void *buf, size_t n) +{ + // TODO + return 0; +} + +size_t as_bin_append(inode_t inode, fsize_t *seek_ptr, const void *buf, size_t +n) +{ + // TODO + return 0; +} + +/* Directory functions */ + +size_t as_ls(inode_t inode, struct dirent *buf, uint8_t all) +{ + // TODO + return 0; +} + +size_t as_find(inode_t inode, struct dirent *buf, const char *name) +{ + // TODO + return 0; +} + +int8_t as_mkdir(inode_t inode, const char *name) +{ + // TODO + return 0; +} + +int8_t as_rmdir(inode_t inode, const char *name) +{ + // TODO + return 0; +} + +int8_t as_touch(inode_t inode, const char *name) +{ + // TODO + return 0; +} + +int8_t as_rm(inode_t inode, const char *name) +{ + // TODO + return 0; +} + +int8_t as_ln(inode_t inode, const char *path, const char *name) +{ + // TODO + return 0; +} + +/* Serial Space section */ +/* Warning, it doesn't switch to the right driver */ + +/* File functions */ + +size_t ss_readline(inode_t inode, fsize_t seek, char *buf, char term) +{ + // TODO + return 0; +} + +size_t ss_print(inode_t inode, fsize_t seek, const char *str) +{ + // TODO + return 0; +} + +size_t ss_append(inode_t inode, fsize_t *seek_ptr, const char *str) +{ + // TODO + return 0; +} + +size_t ss_read(inode_t inode, fsize_t seek, void *buf, size_t n) +{ + // TODO + return 0; +} + +size_t ss_write(inode_t inode, fsize_t seek, const void *buf, size_t n) +{ + // TODO + return 0; +} + +size_t ss_bin_append(inode_t inode, fsize_t *seek_ptr, const void *buf, size_t +n) +{ + // TODO + return 0; +} + +/* Directory functions */ + +size_t ss_ls(inode_t inode, struct dirent *buf, uint8_t all) +{ + // TODO + return 0; +} + +size_t ss_find(inode_t inode, struct dirent *buf, const char *name) +{ + // TODO + return 0; +} + +int8_t ss_mkdir(inode_t inode, const char *name) +{ + // TODO + return 0; +} + +int8_t ss_rmdir(inode_t inode, const char *name) +{ + // TODO + return 0; +} + +int8_t ss_touch(inode_t inode, const char *name) +{ + // TODO + return 0; +} + +int8_t ss_rm(inode_t inode, const char *name) +{ + // TODO + return 0; +} + +int8_t ss_ln(inode_t, const char *path, const char *name) +{ + // TODO + return 0; +} diff --git a/sw-old/z80/kernel/fs/fs.c b/sw-old/z80/kernel/fs/fs.c new file mode 100644 index 0000000..584f934 --- /dev/null +++ b/sw-old/z80/kernel/fs/fs.c @@ -0,0 +1,236 @@ +#include "fs/fs.h" +#include "fs/users.h" +#include "fs/dev.h" + +/* from users.h */ +struct fs_user c_user; + +/* from inode.h */ +inode_t c_inode; + +struct fs_dev devices[FS_MOUNT_LIMIT]; + +/* filesystem basic implementation */ + +devsize_t fs_block(blk_t block) +{ + // TODO + return 0; +} + +devsize_t fs_inode(struct fs_inode *buf) +{ + struct fs_superblock * sb; + devsize_t seek; + + if (FS_USE_ROM(c_inode)) + { + seek = FS_ROM_SPACE; + sb = (struct fs_superblock*) seek; + + } else { + + seek = 0; + + if (c_inode.dev > 0x7) + panic("Invalid device"); // TODO, still to implement + + sb = &devices[c_inode.dev].superblock; + } + + if (c_inode.inode >= sb->imap_size) + { + // TODO, set errno + return 0; // inode doesn't exist + } + + seek += sizeof(struct fs_superblock) + + sizeof(struct fs_inode) * c_inode.inode; + + if (FS_USE_ROM(c_inode)) + *buf = *(struct fs_inode*)seek; + else + { + /* set sio port */ + sio_port = devices[c_inode.dev].port_no; + sio_seek = seek; + + if (sio_read((void *)buf, INODE_META_SIZE) < INODE_META_SIZE) + { + // TODO, set errno + return 0; // cannot read to device + } + } + + return seek + INODE_META_SIZE; +} + +/* from fd.h */ +int8_t __fd_new() +{ + int8_t fd; + for (int8_t = 0; i < FD_TABLE_SIZE / 8; i++) + { + for (uint8_t bit = 0x80, j = 0; bit > 0; bit >>= 1, j++) + { + if (!(bit & fd_bmap[i])) + return i * 8 + j; + } + } + + return -1; +} + +/* from fd.h */ +int8_t __open_c_inode(uint8_t flags) +{ + /* read meta data */ + struct fs_inode inode; + + /* init file_desc buffer */ + struct file_desc desc = {c_inode, 0}; + + desc.begin = fs_inode(&inode); + + /* bind operations */ + + if (flags & OPEN_DIR) + { + /* dir handler */ + + if (inode.type == INODE_TYPE_DIR) + { + /* bind dir functions */ + if (FS_USE_ROM(c_inode)) + /* bind address space functions */ + FD_BIND_AS_DIR(desc.opers) + else + /* bind serial space functions */ + FD_BIND_SS_DIR(desc.opers) + + } else { + + // TODO, set errno + return -1; // not a directory + } + + } else if (flags & OPEN_LINK) { + + /* link handler */ + + if (inode.type == INODE_TYPE_LINK) + { + if (FS_USE_ROM(c_inode)) + FD_BIND_AS_FILE(desc.opers, flags) + else + FD_BIND_SS_FILE(desc.opers, flags) + + if (flags & OPEN_ERASE) + /* empty file content */ + __inode_empty(desc.begin); + + } else { + + // TODO, set errno + return -1; // not a link + } + + } else { + + /* file */ + + if (inode.type == INODE_TYPE_FILE) + ; // do nothing + else if (inode.type == INODE_TYPE_SPECIAL) { + + // TODO, bind special callbacks + + } else { + + // TODO, set errno + return -1; + } + + /* bind operations */ + + if (FS_USE_ROM(c_inode)) + { + if (flags & OPEN_BIN) + FD_BIND_AS_BINFILE(desc.opers, flags) + else + FD_BIND_AS_FILE(desc.opers, flags) + + } else { + + if (flags & OPEN_BIN) + FD_BIND_SS_BINFILE(desc.opers, flags) + else + FD_BIND_SS_FILE(desc.opers, flags) + } + } + + /* find a free fd space */ + + int8_t fd = __fd_new(); + + if (fd < 0) + { + // TODO, set errno, fd not available + + } else + fd_table[fd] = desc; // copy buffer into the table + + return fd; +} + +inode_t fs_rec_path(const char *path); + +inode_t fs_parse_path(const char *path) +{ + inode_t ino, cwd = c_inode; + + switch (path[0]) + { + case '0': + FS_INODE_NULL(ino) + return ino; + + case '/': + FS_INODE_ROOT(ino) + c_inode = ino; // set cwd to root + path++; + break; + + case '~': + + if (path[1] = '/') + { + c_inode.dev = FS_DEV_ROM; + c_inode.inode = c_user.home; // set cwd to home + path += 2; + } + + break; + } + + ino = fs_rec_path(path); + c_inode = cwd; + return ino; +} + +inode_t fs_rec_path(const char *path) +{ + devsize_t inode = fs_inode(c_inode.inode); + inode_t rel; + + if (!inode) // if not exists + { + FS_INODE_NULL(rel) + return rel; + } + + // TODO, check if dir or file + // TODO, if dir, find name + // TODO, set fs_cwd to new inode + // TODO, recall fs_rec_path +} diff --git a/sw-old/z80/kernel/include/devices.h b/sw-old/z80/kernel/include/devices.h new file mode 100644 index 0000000..a846f9b --- /dev/null +++ b/sw-old/z80/kernel/include/devices.h @@ -0,0 +1,15 @@ +#ifndef __DEVICES_H__ +#define __DEVICES_H__ + +#define ADDR_DEV_ROM_L 0x0000 +#define ADDR_DEV_ROM_H 0x2000 + +#define ADDR_DEV_USART 0x4000 +#define ADDR_DEV_CTC 0x4100 +#define ADDR_DEV_PIO 0x4200 + +#define ADDR_DEV_MMU + +#define ADDR_DEV_RAM 0x8000 + +#endif diff --git a/sw-old/z80/kernel/include/errno.h b/sw-old/z80/kernel/include/errno.h new file mode 100644 index 0000000..7632269 --- /dev/null +++ b/sw-old/z80/kernel/include/errno.h @@ -0,0 +1,35 @@ +#ifndef ERRNO_H +#define ERRNO_H + +extern int errno; + +#define EPERM 1 /* Operation not permitted */ +#define ENOENT 2 /* No such file or directory */ +#define ESRCH 3 /* No such process */ +#define EINTR 4 /* Interrupted system call */ +#define EIO 5 /* Input/output error */ +#define ENXIO 6 /* Device not configured */ +#define E2BIG 7 /* Argument list too long */ +#define ENOEXEC 8 /* Exec format error */ +#define EBADF 9 /* Bad file descriptor */ +#define ECHILD 10 /* No child processes */ +#define EDEADLK 11 /* Resource deadlock avoided */ + +#define ENOMEM 12 /* Cannot allocate memory */ +#define EACCES 13 /* Permission denied */ +#define EFAULT 14 /* Bad address */ + +#define ENOTBLK 15 /* Block device required */ +#define EBUSY 16 /* Device busy */ +#define EEXIST 17 /* File exists */ + +#define EXDEV 18 /* Cross-device link */ +#define ENODEV 19 /* Operation not supported by device */ +#define ENOTDIR 20 /* Not a directory */ +#define EISDIR 21 /* Is a directory */ +#define EINVAL 22 /* Invalid argument */ +#define ENFILE 23 /* Too many open files in system */ +#define EMFILE 24 /* Too many open files */ +#define ENOTTY 25 /* Inappropriate ioctl for device */ + +#endif diff --git a/sw-old/z80/kernel/include/fs/dev.h b/sw-old/z80/kernel/include/fs/dev.h new file mode 100644 index 0000000..8e550f3 --- /dev/null +++ b/sw-old/z80/kernel/include/fs/dev.h @@ -0,0 +1,29 @@ +#ifndef DEV_H +#define DEV_H + +#include "types.h" + +#define FS_MOUNT_LIMIT 16 + +struct fs_superblock +{ + uint8_t magic; // identifier + + size_t blk_size; // size of a single block + size_t imap_size; // quantity of inodes + size_t dmap_size; // quantity of blocks +}; + +struct fs_dev +{ + uint enabled :1; // in use + uint port_no :3; // serial port number + uint :4; + inode_t inode; // dir mounted + struct fs_superblock superblock; // block informations +}; + +/* list of devices */ +extern struct fs_dev devices[FS_MOUNT_LIMIT]; + +#endif diff --git a/sw-old/z80/kernel/include/fs/dirent.h b/sw-old/z80/kernel/include/fs/dirent.h new file mode 100644 index 0000000..2fd224a --- /dev/null +++ b/sw-old/z80/kernel/include/fs/dirent.h @@ -0,0 +1,17 @@ +#ifndef __DIRENT_H__ +#define __DIRENT_H__ + +#include "types.h" + +struct dirent +{ + ino_t inode; // inode referred + uint8_t name_size; // size of the name + char name[]; // name of the referred inode +}; + +/* if inode is FS_INO_NULL, then the dirent is a memory leak */ +/* Warning: dirent leaks are generated by rm or rmdir operations */ +/* Filesystem must be periodically checked and cleaned */ + +#endif // __DIRENT_H__ diff --git a/sw-old/z80/kernel/include/fs/fd.h b/sw-old/z80/kernel/include/fs/fd.h new file mode 100644 index 0000000..d2fea2a --- /dev/null +++ b/sw-old/z80/kernel/include/fs/fd.h @@ -0,0 +1,102 @@ +#ifndef __FD_H__ +#define __FD_H__ + +#include "types.h" + +#define FD_MAX 32 + +#define OPEN_READ 0x1 +#define OPEN_WRITE 0x2 +#define OPEN_BIN 0x4 +#define OPEN_APPEND 0x8 +#define OPEN_ERASE 0x10 +#define OPEN_DIR 0x20 +#define OPEN_LINK 0x40 + +#define LS_ALL 0x1 + +/* declare dirent, not include */ +#ifndef __DIRENT_H__ +struct dirent; +#endif + +/* set of operations callback for fd */ +struct fd_operations +{ + size_t (*readline)(inode_t, fsize_t, char *, char term); + size_t (*print)(inode_t, fsize_t, const char *); + size_t (*append)(inode_t, fsize_t*, const char *); + + size_t (*read)(inode_t, fsize_t, void *, size_t); + size_t (*write)(inode_t, fsize_t, const void *, size_t); + size_t (*bin_append)(inode_t, fsize_t*, const void *, size_t); + + size_t (*ls)(inode_t, struct dirent *, uint8_t); + size_t (*find)(inode_t, struct dirent *, const char *); + int8_t (*mkdir)(inode_t, const char *); + int8_t (*rmdir)(inode_t, const char *); + int8_t (*touch)(inode_t, const char *); + int8_t (*rm)(inode_t, const char *); + int8_t (*ln)(inode_t, const char *, const char *); + + int8_t (*special)(inode_t, void *, size_t); +}; + +/* file descriptor */ +struct file_desc +{ + inode_t inode; // inode pointed + fsize_t seek; // virtual seek + devsize_t begin; // beginning of blocks + struct fd_operations opers; // bound operations +}; + +/* bitmap of used file descriptors */ +extern struct uint8_t fd_bmap[FD_TABLE_SIZE / 8]; + +/* table of file descriptors */ +extern struct file_desc fd_table[FD_TABLE_SIZE]; + +/* returns a free file descriptor */ +int8_t __fd_new(); + +/* opens a file streaming of the cwd */ +int8_t __open_c_inode(uint8_t flags); + +/* opens a file streaming by a path */ +int8_t open(const char *path, uint8_t flags); + +/* list content of directory */ +size_t ls(int8_t fd, struct dirent *buf, uint8_t all); + +/* find name through the directory entries */ +size_t find(int8_t fd, struct dirent *buf, const char *name); + +/* creates a new directory inside fd with the specified name */ +int8_t mkdir(int8_t fd, const char *name); + +/* creates a new file inside fd with the specified name */ +int8_t touch(int8_t fd, const char *name); + +/* creates a new symlink inside fd with the specified name */ +int8_t ln(int8_t fd, const char *name); + +/* change virtual seek position of the fd */ +int8_t seek(int8_t fd, fsize_t pos); + +/* reads a string from the fd until the terminator is reached */ +size_t readline(int8_t fd, char *buf, char term); + +/* writes a string into the fd */ +int8_t print(int8_t fd, const char *str); + +/* reads n bytes from the fd */ +size_t read(int8_t fd, void *buf, size_t n); + +/* writes n bytes into the fd */ +int8_t write(int8_t fd, const void *buf, size_t n); + +/* frees fd space */ +void close(int8_t fd); + +#endif // __FD_H__ diff --git a/sw-old/z80/kernel/include/fs/fdop.h b/sw-old/z80/kernel/include/fs/fdop.h new file mode 100644 index 0000000..d4b1b77 --- /dev/null +++ b/sw-old/z80/kernel/include/fs/fdop.h @@ -0,0 +1,140 @@ +#ifndef __FDOP_H__ +#define __FDOP_H__ + +#include "types.h" + +#ifndef __DIRENT_H__ +struct dirent; +#endif + +/* macro for direct binding */ + +#define FD_BIND_AS_DIR(oper) { \ + oper.ls = &as_ls; \ + oper.find = &as_find; \ + oper.mkdir = &as_mkdir; \ + oper.rmdir = &as_rmdir; \ + oper.touch = &as_touch; \ + oper.rm = &as_rm; \ + oper.ln = &as_ln; \ + } + +#define FD_BIND_SS_DIR(oper) { \ + oper.ls = &ss_ls; \ + oper.find = &ss_find; \ + oper.mkdir = &ss_mkdir; \ + oper.rmdir = &ss_rmdir; \ + oper.touch = &ss_touch; \ + oper.rm = &ss_rm; \ + oper.ln = &ss_ln; \ + } + +#define FD_BIND_AS_FILE(opers, flags) { \ + if (flags & OPEN_READ) \ + opers.readline = as_readline; \ + if (flags & OPEN_APPEND) \ + opers.append = as_append; \ + else if (flags & OPEN_WRITE) \ + opers.print = as_print; \ + } + +#define FD_BIND_SS_FILE(opers, flags) { \ + if (flags & OPEN_READ) \ + opers.readline = ss_readline; \ + if (flags & OPEN_APPEND) \ + opers.append = ss_append; \ + else if (flags & OPEN_WRITE) \ + opers.print = ss_print; \ + } + +#define FD_BIND_AS_BINFILE(opers, flags) { \ + if (flags & OPEN_READ) \ + opers.read = as_read; \ + if (flags & OPEN_APPEND) \ + opers.bin_append = as_bin_append; \ + else if (flags & OPEN_WRITE) \ + opers.write = as_write; \ + } + +#define FD_BIND_SS_BINFILE(opers, flags) { \ + if (flags & OPEN_READ) \ + opers.read = ss_read; \ + if (flags & OPEN_APPEND) \ + opers.bin_append = ss_bin_append; \ + else if (flags & OPEN_WRITE) \ + opers.write = ss_write; \ + } + +/* Set of file descriptors operations */ +/* Determines if to use the serial interface or the address space */ + +/* Address space section */ + +/* File functions */ + +size_t as_readline(inode_t inode, fsize_t seek, char *buf, char term); + +size_t as_print(inode_t inode, fsize_t seek, const char *str); + +size_t as_append(inode_t inode, fsize_t *seek_ptr, const char *str); + + +size_t as_read(inode_t inode, fsize_t seek, void *buf, size_t n); + +size_t as_write(inode_t inode, fsize_t seek, const void *buf, size_t n); + +size_t as_bin_append(inode_t inode, fsize_t *seek_ptr, const void *buf, size_t +n); + +/* Directory functions */ + +size_t as_ls(inode_t inode, struct dirent *buf, uint8_t all); + +size_t as_find(inode_t inode, struct dirent *buf, const char *name); + +int8_t as_mkdir(inode_t inode, const char *name); + +int8_t as_rmdir(inode_t inode, const char *name); + +int8_t as_touch(inode_t inode, const char *name); + +int8_t as_rm(inode_t inode, const char *name); + +int8_t as_ln(inode_t inode, const char *path, const char *name); + +/* Serial Space section */ +/* Warning, it doesn't switch to the right driver */ + +/* File functions */ + +size_t ss_readline(inode_t inode, fsize_t seek, char *buf, char term); + +size_t ss_print(inode_t inode, fsize_t seek, const char *str); + +size_t ss_append(inode_t inode, fsize_t *seek_ptr, const char *str); + + +size_t ss_read(inode_t inode, fsize_t seek, void *buf, size_t n); + +size_t ss_write(inode_t inode, fsize_t seek, const void *buf, size_t n); + +size_t ss_bin_append(inode_t inode, fsize_t *seek_ptr, const void *buf, size_t +n); + +/* Directory functions */ + +size_t ss_ls(inode_t inode, struct dirent *buf, uint8_t all); + +size_t ss_find(inode_t inode, struct dirent *buf, const char *name); + +int8_t ss_mkdir(inode_t inode, const char *name); + +int8_t ss_rmdir(inode_t inode, const char *name); + +int8_t ss_touch(inode_t inode, const char *name); + +int8_t ss_rm(inode_t inode, const char *name); + +int8_t ss_ln(inode_t, const char *path, const char *name); + +#endif // __FDOP_H__ diff --git a/sw-old/z80/kernel/include/fs/fs.h b/sw-old/z80/kernel/include/fs/fs.h new file mode 100644 index 0000000..ad20adb --- /dev/null +++ b/sw-old/z80/kernel/include/fs/fs.h @@ -0,0 +1,63 @@ +#ifndef __FS_H__ +#define __FS_H__ + +#include "types.h" + +#define FS_OFFSET 0x1000 + +#define FS_BLOCKS_SIZE 512 +#define FS_BLOCKS_N 8 +#define FS_BLOCKS_IND 6 + +#define INODE_TYPE_FILE 0x0 +#define INODE_TYPE_DIR 0x1 +#define INODE_TYPE_SLINK 0x2 +#define INODE_TYPE_SPECIAL 0x3 + +#define INODE_META_SIZE 8 + +/* inode basic structure */ +struct fs_inode +{ + /* inode meta data */ + + uint mode :3; // chmod + uint uid :3; // chown + uint type :2; // file, dir, sym-link, special + + time_t ctime; // creation time + + uint24_t size; // inode size + + /* data storage informations */ + /* it doesn't allocate memory, virtual size FS_BLOCKS_N */ + blk_t blocks[]; +}; + +#define FS_DEV_ROM 0x7f /* 01111111 */ +#define FS_DEV_NULL 0x80 /* 10000000 */ + +#define FS_ROM_SPACE 0x2000 // second rom + +#define FS_INO_ROOT 0x0 // first inode + +#define FS_INODE_ROOT(inode) {inode.dev = 0xff; inode.inode = 0x0} +#define FS_INODE_NULL(inode) {inode.dev = 0x80; inode.inode = 0x0} + +#define FS_USE_ROM(inode) {inode.dev == 0x7f} + +/* get block seek in current device */ +devsize_t fs_block(blk_t block); + +/* get common inode seek in current device */ +/* c_inode must be set first */ +/* returns seek at the beginning of blocks field */ +devsize_t fs_inode(struct fs_inode *buf); + +/* common inode for syscalls */ +extern inode_t c_inode; + +/* parse a path, absolute or relative to c_inode */ +inode_t fs_parse_path(const char *path); + +#endif // __FS_H__ diff --git a/sw-old/z80/kernel/include/fs/iter.h b/sw-old/z80/kernel/include/fs/iter.h new file mode 100644 index 0000000..41f011d --- /dev/null +++ b/sw-old/z80/kernel/include/fs/iter.h @@ -0,0 +1,17 @@ +#ifndef __ITER_H__ +#define __ITER_H__ + +struct inode_iter +{ + devsize_t dev_seek; /* seek position in the volume */ + devsize_t blk_end; /* end of the block */ + + int16_t blk_index; /* index of the block */ + + int8_t blk_level; /* recursion level, indirect blocks */ + + fsize_t fseek; /* virtual seek in the file */ + fsize_t size; /* file size */ +}; + +#endif // __ITER_H__ diff --git a/sw-old/z80/kernel/include/fs/users.h b/sw-old/z80/kernel/include/fs/users.h new file mode 100644 index 0000000..83980e5 --- /dev/null +++ b/sw-old/z80/kernel/include/fs/users.h @@ -0,0 +1,21 @@ +#ifndef USERS_H +#define USERS_H + +#include "types.h" + +#define USERS_MAX 8 +#define USER_ROOT 0 + +/* current user in use */ +extern struct fs_user c_user; + +struct fs_user +{ + char name[32]; + ino_t home; + uint8_t perm; // TODO, permissions +}; + +/* all users are in rom device */ + +#endif diff --git a/sw-old/z80/kernel/include/memory.h b/sw-old/z80/kernel/include/memory.h new file mode 100644 index 0000000..67c4b88 --- /dev/null +++ b/sw-old/z80/kernel/include/memory.h @@ -0,0 +1,50 @@ +#ifndef __MEMORY_H__ +#define __MEMORY_H__ + +#include "types.h" +#include "devices.h" + +/* maximum number of pages on the system */ +#define PAGES_MAX_COUNT 32 +#define PAGE_SIZE 1000 + +/* in our system there are only 16 pages since only 64KB can be addressed + * to optimize the memory management in ROM and RAM only pages from this set + * shall be used + */ +// ROM +#define ADDR_PAGE_0 0x0000 +#define ADDR_PAGE_1 0x1000 +#define ADDR_PAGE_2 0x2000 +#define ADDR_PAGE_3 0x3000 +// IOSPACE +#define ADDR_PAGE_4 0x4000 +#define ADDR_PAGE_5 0x5000 +#define ADDR_PAGE_6 0x6000 +#define ADDR_PAGE_7 0x7000 +// RAM +#define ADDR_PAGE_8 0x8000 +#define ADDR_PAGE_9 0x9000 +#define ADDR_PAGE_10 0xA000 +#define ADDR_PAGE_11 0xB000 +#define ADDR_PAGE_12 0xC000 +#define ADDR_PAGE_13 0xD000 +#define ADDR_PAGE_14 0xE000 +#define ADDR_PAGE_15 0xF000 + +#define ADDR_PAGE_FIRST ADDR_PAGE_8 +#define ADDR_PAGE_LAST ADDR_PAGE_15 + +struct page +{ + pid_t pid; // process owner of the page (0 if free) + uint16_t addr; // physical address +}; + +int mmu_write_table(void); + +int page_new(void); +int page_map(int page, int pid, uint16_t addr); +int page_unmap(int page); + +#endif // __MEMORY_H__ diff --git a/sw-old/z80/kernel/include/process.h b/sw-old/z80/kernel/include/process.h new file mode 100644 index 0000000..3b0c843 --- /dev/null +++ b/sw-old/z80/kernel/include/process.h @@ -0,0 +1,43 @@ +#ifndef __PROCESS_H__ +#define __PROCESS_H__ + +#include "types.h" +#include "memory.h" + + /* maximum number of processes (i.e. pages in ram) + * since each program can use only one page in ram + */ +#define PROC_COUNT 2 + +/* the pid is defined with a single byte (pid_t is uint8_t), because of that + * there cannot be more than 255 processes open at the same time. this is a + * limitation but for our purposes is more than enough + */ +#define PID_COUNT_MAX 255 + +struct executable +{ + void *text; + size_t text_size; + void *bss; + size_t bss_size; +}; + +struct process +{ + uint blocked :1; // process is waiting for hardware or locked + uint running :1; // pid is used + uint pages; // number of pages used by the process + struct page page[4]; // pages used by the process +}; + +pid_t newpid(void); + +int fork(void); +int exec(char *path, char *args); +int spawn(char *path, char *args); + +pid_t getpid(void); +int kill(pid_t pid); + +#endif // __PROCESS_H__ diff --git a/sw-old/z80/kernel/include/sio.h b/sw-old/z80/kernel/include/sio.h new file mode 100644 index 0000000..276b99c --- /dev/null +++ b/sw-old/z80/kernel/include/sio.h @@ -0,0 +1,43 @@ +#ifndef __SIO_H__ +#define __SIO_H__ + +#include "types.h" + +#define SIO_PORT_0 0x0 +#define SIO_PORT_1 0x1 +#define SIO_PORT_2 0x2 +#define SIO_PORT_3 0x3 +#define SIO_PORT_4 0x4 +#define SIO_PORT_5 0x5 +#define SIO_PORT_6 0x6 +#define SIO_PORT_7 0x7 + +/* current port in use */ +extern uint8_t sio_port; + +/* current seek in the device */ +extern devsize_t sio_seek; + +struct dev_buffer +{ + // TODO, bytes needed to the device buffer interface +}; + +/* points to the buffers mapped in the I/O space */ +/* to be defined precisely in assembly */ +extern volatile struct dev_buffer sio_buffers[8]; + +/* initialize serial interface */ +void sio_init(); + +/* syscall: read one byte from the current device */ +uint8_t sio_recv(); +/* syscall: write one byte into the current device */ +void sio_send(uint8_t value); + +/* read n bytes from the current port */ +size_t sio_read(void *buffer, size_t n); +/* write n bytes into the current port */ +int8_t sio_write(const void *buffer, size_t n); + +#endif // __SIO_H__ diff --git a/sw-old/z80/kernel/include/stat.h b/sw-old/z80/kernel/include/stat.h new file mode 100644 index 0000000..44c0f63 --- /dev/null +++ b/sw-old/z80/kernel/include/stat.h @@ -0,0 +1,24 @@ +#ifndef __STAT_H__ +#define __STAT_H__ + +#include "types.h" + +struct stat +{ + inode_t inode; /* inode reference */ + + uint mode :3; /* mode */ + uint uid :3; /* owner id */ + uint type :2; /* file, dir or link */ + + devsize_t size; /* file size */ + + size_t blk_size; /* single block size */ + size_t blk_used; /* blocks used by the file */ + + time_t ctime; /* creation time */ +} + +struct stat * stat(const char *path, struct stat *buffer); + +#endif // __STAT_H__ diff --git a/sw-old/z80/kernel/include/types.h b/sw-old/z80/kernel/include/types.h new file mode 100644 index 0000000..c6e620b --- /dev/null +++ b/sw-old/z80/kernel/include/types.h @@ -0,0 +1,62 @@ +#ifndef __TYPES_H__ +#define __TYPES_H__ + +/* only types from primitive types are defined in this file */ + +typedef volatile unsigned char register_t; + +typedef unsigned int uint; + +typedef char int8_t; +typedef unsigned char uint8_t; +typedef int int16_t; +typedef unsigned int uint16_t; +typedef long int int32_t; +typedef unsigned long int uint32_t; + +typedef uint16_t size_t; +typedef int16_t ssize_t; + +typedef uint8_t pid_t; +typedef uint16_t ino_t; + +typedef uint8_t dev_t; +typedef uint32_t devsize_t; +typedef uint8_t fd_t; +typedef uint16_t blk_t; +typedef uint8_t user_t; + +typedef struct { + uint8_t member[3]; + +} uint24_t; + +typedef uint32_t fsize_t; + +typedef struct +{ + dev_t dev; // device id, global in the fs + ino_t inode; // inode id relative to the volume + +} inode_t; + +typedef struct time_s +{ + struct + { + uint minutes :6; + uint hour :5; + + } time; + + struct + { + uint day :5; + uint month :4; + uint year :12; + + } date; + +} time_t; + +#endif diff --git a/sw-old/z80/kernel/kernel.c b/sw-old/z80/kernel/kernel.c new file mode 100644 index 0000000..3d5aeb6 --- /dev/null +++ b/sw-old/z80/kernel/kernel.c @@ -0,0 +1,7 @@ +#include "types.h" +#include "usart.h" + +void kmain(void) +{ + usart_init(USART_BAUDRATE_9600, USART_PARITY_EVEN, USART_STOP_BITS_1); +} diff --git a/sw-old/z80/kernel/makefile b/sw-old/z80/kernel/makefile new file mode 100644 index 0000000..be8eed4 --- /dev/null +++ b/sw-old/z80/kernel/makefile @@ -0,0 +1,53 @@ +#### +# source code settings +# +OSNAME := helvetiOS + +CSOURCES := $(wildcard *.c) \ + $(wildcard drivers/*.c) + +OBJECTS := $(patsubst %.c,build/%.rel,$(CSOURCES)) +HEXFILE := build/$(OSNAME).hex +BINARY := build/$(OSNAME).bin + +### +# compiler settings + +CC := sdcc + +CFLAGS := -mz80 \ + -I include \ + -I include/drivers \ + -I libc/include \ + --opt-code-size \ + -DDEBUG + +LDFLAGS := -mz80 --no-std-crt0 build/crt0.rel \ + --std-c89 -pedantic \ + --code-loc 0x0800 --data-loc 0x8000 + +.PHONY: dirs dis clean +all: $(BINARY) + +# build binary +$(BINARY): $(OBJECTS) dirs + $(CC) $(LDFLAGS) $(OBJECTS) -o $(HEXFILE) + makebin -s 16384 $(HEXFILE) $(BINARY) + +$(OBJECTS): build/%.rel : %.c $(CSOURCES) dirs build/crt0.rel + @printf "\n" + $(CC) $(CFLAGS) -c $< -o $@ + +build/crt0.rel: crt0.s + sdasz80 -o $< + @mv crt0.rel build + +dirs: + mkdir -p build build/kernel build/libc build/kernel/drivers + +dis: $(BINARY) + dz80 -b -n $< + +clean: + - rm -rd build/* + - rm crt0.rel diff --git a/sw-old/z80/kernel/memory.c b/sw-old/z80/kernel/memory.c new file mode 100644 index 0000000..1b2cc76 --- /dev/null +++ b/sw-old/z80/kernel/memory.c @@ -0,0 +1,94 @@ +#include "memory.h" + +static struct page pages_table[PAGES_MAX_COUNT]; + +int mmu_write_table(void) +{ + int i; + + for (i = 0; i < PAGES_MAX_COUNT; i++) { + if (pages_table[i].pid != 0) { + // write to mmu table + } + } + + return 0; +} + +int page_new(void) +{ + int i, used; + uint16_t addr; + + for (addr = ADDR_PAGE_FIRST; addr < ADDR_PAGE_LAST; addr += PAGE_SIZE) { + used = 0; + + for (i = 0; i < PAGES_MAX_COUNT; i++) { + if (pages_table[i].addr == addr) { + used = 1; + break; + } + } + + if (!used) + return i; + } + + return -1; +} + +int page_map(int page, int pid, uint16_t addr) +{ + if (page >= PAGES_MAX_COUNT) + return -1; + + if (pages_table[page].pid != 0) + return -2; + + pages_table[page].addr = addr; + pages_table[page].pid = pid; + + return 0; +} + +int page_unmap(int page) +{ + if (page >= PAGES_MAX_COUNT) + return -1; + + if (pages_table[page].pid == 0) + return -2; + + pages_table[page].pid = 0; + pages_table[page].addr = 0; + return 0; +} + +/* k_malloc manager */ +/* +struct k_buf_entry k_buf_table[K_BUF_MAX_COUNT]; + +struct k_buf k_buffers[K_BUF_MAX_COUNT]; + +void * k_malloc() +{ + for (uint8_t i = 0; i < K_BUF_TABLE_COUNT; i++) + { + for (uint8_t bit = 0x80, j = 0; j < 8; bit >>= 1, j++) + { + if (bit & k_buf_table[i]) + { + k_buf_table[i] |= bit; + return &k_buffers[8 * i + j]; + } + } + } +} + +void k_free(void * ptr) +{ + uint8_t index = (ptr - &k_buffers[0]) / K_BUF_SIZE; + + if (index < K_BUF_MAX_COUNT) + k_buf_table[index / 8] ^= 0x80 >> index % 8; +}*/ diff --git a/sw-old/z80/kernel/process.c b/sw-old/z80/kernel/process.c new file mode 100644 index 0000000..7d8db89 --- /dev/null +++ b/sw-old/z80/kernel/process.c @@ -0,0 +1,58 @@ +#include "process.h" + +static struct process proc_table[PID_COUNT_MAX]; +static struct process *current_proc; + +pid_t newpid(void) +{ + int i; + static pid_t last_pid = 0; + + for (i = 0; i < PID_COUNT_MAX; i++, last_pid++) { + if (last_pid == PID_COUNT_MAX) { + last_pid = 0; + continue; + } + + if (!proc_table[last_pid].running) + break; + } + + if (i >= PID_COUNT_MAX) + return 0; + + return last_pid; +} + +int fork(void) +{ + int i, p; + pid_t child_pid = newpid(); + + if (child_pid == 0) + return -1; + + + for (i = 0; i < current_proc->pages; i++) { + p = page_new(); + + if (p == -1) { + return -2; + } + + // TODO: use memcpy() + // SDCC does not allow assignemnts of structs + + // proc_table[child_pid].page[i] = p; + } +} + +int exec(char *path, char *args) +{ + +} + +int spawn(char *path, char *args) +{ + +} diff --git a/sw-old/z80/libc/include/stdint.h b/sw-old/z80/libc/include/stdint.h new file mode 100644 index 0000000..5e8caf3 --- /dev/null +++ b/sw-old/z80/libc/include/stdint.h @@ -0,0 +1,13 @@ +#ifndef __STDINT_H__ +#define __STDINT_H__ + +typedef unsigned int uint; + +typedef char int8_t; +typedef unsigned char uint8_t; +typedef int int16_t; +typedef unsigned int uint16_t; +typedef long int int32_t; +typedef unsigned long int uint32_t; + +#endif // __STDINT_H__
\ No newline at end of file diff --git a/sw-old/z80/libc/include/stdio.h b/sw-old/z80/libc/include/stdio.h new file mode 100644 index 0000000..b31cdfd --- /dev/null +++ b/sw-old/z80/libc/include/stdio.h @@ -0,0 +1,11 @@ +#ifndef __STDIO_H__ +#define __STDIO_H__ + +#include "types.h" + +extern uint8_t *stdout, stderr; + +void putc(char ch, uint8_t *buffer); +int printf(const char *fmt, ...); + +#endif diff --git a/sw-old/z80/libc/include/stdlib.h b/sw-old/z80/libc/include/stdlib.h new file mode 100644 index 0000000..c69f573 --- /dev/null +++ b/sw-old/z80/libc/include/stdlib.h @@ -0,0 +1,7 @@ +#ifndef __STDLIB_H__ +#define __STDLIB_H__ + +#include "stdint.h" + + +#endif // __STDLIB_H__
\ No newline at end of file diff --git a/sw-old/z80/libc/include/string.h b/sw-old/z80/libc/include/string.h new file mode 100644 index 0000000..9c002e3 --- /dev/null +++ b/sw-old/z80/libc/include/string.h @@ -0,0 +1,12 @@ +#ifndef __STRING_H__ +#define __STRING_H__ + +#include "types.h" + +void * memset(void *dest, const int8_t src, size_t n); + +void *memcpy(void *dest, const void *src, size_t n); + +int8_t memcmp(const void *s1, const void *s2, size_t n); + +#endif diff --git a/sw-old/z80/libc/include/sysio.h b/sw-old/z80/libc/include/sysio.h new file mode 100644 index 0000000..5d1f5ae --- /dev/null +++ b/sw-old/z80/libc/include/sysio.h @@ -0,0 +1,55 @@ +#ifndef __SYSIO_H__ +#define __SYSIO_H__ + +#include "types.h" + +/* +* Memory management +*/ + +void * malloc(uint16_t size); +uint16_t malloc_size(void * address); +void free(void * address); + +/* +* File management +*/ + +#define F_WRITE "w" +#define F_READ "r" +#define F_BIN_WRITE "wb" +#define F_BIN_READ "rb" + +#define F_READ_CODE 0x0 +#define F_WRITE_CODE 0x1 +#define F_BIN_READ_CODE 0x2 +#define F_BIN_WRITE_CODE 0x3 + +#define F_PERM_READ 0x0 +#define F_PERM_WRITE 0x1 +#define F_PERM_RW 0x2 + +struct file { + + const char * path; + unsigned int mode:4; + unsigned int permission:4; +}; + +#define FILE struct file + +FILE * fopen(const char * path, const char * mode); +uint8_t fclose(FILE * file); + +// TODO: other functions + +/* +* Processes management +*/ + +#define PID uint16_t + +void exit(); // exit this program +void interrupt(PID) + +#endif
\ No newline at end of file diff --git a/sw-old/z80/libc/include/types.h b/sw-old/z80/libc/include/types.h new file mode 100644 index 0000000..a083bfe --- /dev/null +++ b/sw-old/z80/libc/include/types.h @@ -0,0 +1,60 @@ +#ifndef __TYPES_H__ +#define __TYPES_H__ + +/* only types from primitive types are defined in this file */ + +typedef volatile unsigned char register_t; + +typedef unsigned int uint; + +typedef char int8_t; +typedef unsigned char uint8_t; +typedef int int16_t; +typedef unsigned int uint16_t; +typedef long int int32_t; +typedef unsigned long int uint32_t; + +typedef uint16_t size_t; +typedef int16_t ssize_t; + +typedef uint8_t pid_t; +typedef uint16_t ino_t; + +typedef uint8_t dev_t; +typedef uint32_t devsize_t; +typedef uint8_t fd_t; +typedef uint16_t blk_t; +typedef uint8_t user_t; +typedef struct { + uint8_t member[3]; +} uint24_t; + +typedef uint32_t fsize_t; + +typedef struct +{ + dev_t dev; // device id, global in the fs + ino_t inode; // inode id relative to the volume + +} inode_t; + +typedef struct time_s +{ + struct + { + uint minutes :6; + uint hour :5; + + } time; + + struct + { + uint day :5; + uint month :4; + uint year :12; + + } date; + +} time_t; + +#endif diff --git a/sw-old/z80/libc/stdio.c b/sw-old/z80/libc/stdio.c new file mode 100644 index 0000000..c2548d6 --- /dev/null +++ b/sw-old/z80/libc/stdio.c @@ -0,0 +1,12 @@ +#include "stdio.h" + +void putc(char ch, uint8_t *buffer) +{ + *buffer = ch; + *(++buffer) = '\0'; +} + + +int printf(const char *fmt, ...) +{ +} diff --git a/sw-old/z80/libc/string.c b/sw-old/z80/libc/string.c new file mode 100644 index 0000000..57b3a7f --- /dev/null +++ b/sw-old/z80/libc/string.c @@ -0,0 +1,37 @@ +#include "string.h" + +void *memset(void *dest, const int8_t src, size_t n) { + + char *dp = (char *) dest; + + while (n--) + *(dp++) = src; + + return dest; +} + +void *memcpy(void *dest, void *src, size_t n) +{ + char *dp = dest; + char *sp = src; + + while (n--) { + *dp++ = *sp++; + } + + return dest; +} + +int8_t memcmp(void *s1, void *s2, size_t n) +{ + char *u1 = (char *) s1; + char *u2 = (char *) s2; + + for ( ; n--; u1++, u2++) { + + if (*u1 != *u2) + return u1 - u2; + } + + return 0; +}
\ No newline at end of file diff --git a/sw-old/z80/tests/asm/main.s b/sw-old/z80/tests/asm/main.s new file mode 100644 index 0000000..8cf4df0 --- /dev/null +++ b/sw-old/z80/tests/asm/main.s @@ -0,0 +1,40 @@ + .module crt0 + .area _HEADER (ABS) + +;; Reset vectors + .org 0 + jp init + + .org 0x38 ; the instruction 0xff (not written) resets to this location + jp init + +;; main code + .org 0x100 + .globl _main + +init: + ;; Set stack pointer directly above top of memory. + ld sp,#0xffff + + ;; Start of the program + call _main + jp _exit + +_exit: + halt + ; jp _exit + +;; Ordering of segments for the linker. + .area _HOME + .area _CODE +_main: + ret + .area _INITIALIZER + .area _GSINIT + .area _GSFINAL + + .area _DATA + .area _INITIALIZED + .area _BSEG + .area _BSS + .area _HEAP diff --git a/sw-old/z80/tests/asm/makefile b/sw-old/z80/tests/asm/makefile new file mode 100644 index 0000000..413b0fe --- /dev/null +++ b/sw-old/z80/tests/asm/makefile @@ -0,0 +1,47 @@ +#### +# source code settings +# +OSNAME := ram_test + +CSOURCES := $(wildcard *.s) + +OBJECTS := $(patsubst %.s,build/%.rel,$(SOURCES)) +HEXFILE := build/$(OSNAME).hex +BINARY := build/$(OSNAME).bin + +### +# compiler settings +# +ASM := sdasz80 +LD := sdldz80 + +FLAGS := +LDFLAGS := + +.PHONY: flash dirs dis clean +all: $(BINARY) + +flash: $(BINARY) + minipro -p M28C64 -w $< + +# build binary +$(BINARY): $(OBJECTS) dirs + $(LD) $(LDFLAGS) $(OBJECTS) -o $(HEXFILE) + makebin -s 8192 -yo 1 $(HEXFILE) $(BINARY) + +$(OBJECTS): build/%.rel : %.s $(SOURCES) dirs + @printf "\n" + $(ASM) $(FLAGS) $< -o + +build/crt0.rel: crt0.s + sdasz80 -o $< + @mv crt0.rel build/ + +dirs: + mkdir -p build + +dis: $(BINARY) + r2 -a z80 $< -c 'pd 0x10; s 0x100; pd 10; s 0x200; pd 10' + +clean: + - rm -rd build diff --git a/sw-old/z80/tests/pio/crt0.s b/sw-old/z80/tests/pio/crt0.s new file mode 100644 index 0000000..c900065 --- /dev/null +++ b/sw-old/z80/tests/pio/crt0.s @@ -0,0 +1,38 @@ + .module crt0 + .area _HEADER (ABS) + +;; Reset vectors + .org 0 + jp init + + .org 0x38 ; the instruction 0xff (not written) resets to this location + jp init + +;; main code + .org 0x100 + .globl _main + +init: + ;; Set stack pointer directly above top of memory. + ld sp,#0xffff + + ;; Start of the program + call _main + jp _exit + +_exit: + halt + ; jp _exit + +;; Ordering of segments for the linker. + .area _HOME + .area _CODE + .area _INITIALIZER + .area _GSINIT + .area _GSFINAL + + .area _DATA + .area _INITIALIZED + .area _BSEG + .area _BSS + .area _HEAP diff --git a/sw-old/z80/tests/pio/main.c b/sw-old/z80/tests/pio/main.c new file mode 100644 index 0000000..7ac64bc --- /dev/null +++ b/sw-old/z80/tests/pio/main.c @@ -0,0 +1,50 @@ +// #include "pio.h" + +#include <stdint.h> + +#define PIO_A_DATA 0x10 +#define PIO_B_DATA 0x11 +#define PIO_A_CMD 0x12 +#define PIO_B_CMD 0x13 + +void main(void) +{ + __asm + ;; output variable + ld h, #0x00 + + ;; set bit mode + ld c, #PIO_B_CMD + + ld a, #0xCF + out (c), a + + ;; set all pins to output + ld a, #0x00 + out (c), a + + ;; disable interrupts + ld a, #0x0C + out (c), a + + ;; load data addr + ld c, #PIO_B_DATA +loop: + out (c), h + ld a, h + + cpl + ld h, a + jr loop + __endasm; + + // uint8_t i = 0; + + // pio_set_mode(PIO_A, PIO_MODE_BIT_IO, 0x00); + // pio_set_interrupts(PIO_A, PIO_INT_DISABLE); + + // while (1) { + // pio_write(PIO_A, i); + // i = ~i; + // } +}
\ No newline at end of file diff --git a/sw-old/z80/tests/pio/makefile b/sw-old/z80/tests/pio/makefile new file mode 100644 index 0000000..1213902 --- /dev/null +++ b/sw-old/z80/tests/pio/makefile @@ -0,0 +1,72 @@ +#### +# source code settings +# +OSNAME := pio_test + +CSOURCES := $(wildcard *.c) +LIBS := ../../arch/build/arch.a \ + ../../drivers/build/drivers.a + +OBJECTS := $(patsubst %.c,build/%.rel,$(CSOURCES)) +HEXFILE := build/$(OSNAME).hex +BINARY := build/$(OSNAME).bin + +### +# compiler settings +# +CC := sdcc + +CFLAGS := -mz80 \ + --no-std-crt0 build/crt0.rel \ + --allow-unsafe-read \ + -I . \ + -I ../../arch/include \ + -I ../../drivers/include \ + -DDEBUG + +LDFLAGS := -mz80 \ + --no-std-crt0 build/crt0.rel \ + -L ../../drivers/build \ + -l drivers.a \ + -pedantic \ + --code-loc 0x0200 + # --data-loc 0x2000 + +.PHONY: flash dirs dis clean +all: $(BINARY) + +flash: $(BINARY) + minipro -p M28C64 -w $< + +# build binary +$(BINARY): $(OBJECTS) dirs + $(CC) $(LDFLAGS) $(OBJECTS) -o $(HEXFILE) + makebin -s 8192 -yo 1 $(HEXFILE) $(BINARY) + +$(OBJECTS): build/%.rel : %.c $(CSOURCES) dirs build/crt0.rel $(LIBS) + @printf "\n" + $(CC) $(CFLAGS) -c $< -o $@ + +$(LIBS): %.a: + @printf "\n" + make -C $(shell printf $@ | sed 's:build.*.::') + +build/crt0.rel: crt0.s + sdasz80 -o $< + @mv crt0.rel build/ + +dirs: + mkdir -p build + +dis: $(BINARY) + dz80 -b -n -t $(BINARY) + r2 -a z80 $< \ + -c 'afn main 0x200; \ + pd 0x10; \ + s 0x100; \ + pd 10; \ + s 0x200; \ + pd 0x95' | tee build/dis.txt + +clean: + - rm -rd build diff --git a/sw-old/z80/tests/ram/crt0.s b/sw-old/z80/tests/ram/crt0.s new file mode 100644 index 0000000..b0caa8c --- /dev/null +++ b/sw-old/z80/tests/ram/crt0.s @@ -0,0 +1,40 @@ + .module crt0 + .area _HEADER (ABS) + +;; Reset vectors + .org 0 + jp init + + .org 0x38 ; the instruction 0xff (not written) resets to this location + jp init + +;; main code + .org 0x100 + .globl _main + +init: + ;; Set stack pointer directly above top of memory. + ld sp,#0xffff + + ;; Start of the program + call _main + jp _exit + +_exit: + halt + jp _exit + +;; Ordering of segments for the linker. + .area _HOME + .area _CODE + .area _INITIALIZER + .area _GSINIT + .area _GSFINAL + + .area _DATA + .area _INITIALIZED + .area _BSEG + .area _BSS + .area _HEAP + + .area _CODE
\ No newline at end of file diff --git a/sw-old/z80/tests/ram/main.c b/sw-old/z80/tests/ram/main.c new file mode 100644 index 0000000..581072b --- /dev/null +++ b/sw-old/z80/tests/ram/main.c @@ -0,0 +1,13 @@ + +void main(void) +{ + unsigned char j; + unsigned char *mem; + + j = 0; + mem = (unsigned char *) 0x8200; // somwhere in ram + + while (1) { + *mem = j++; + } +} diff --git a/sw-old/z80/tests/ram/makefile b/sw-old/z80/tests/ram/makefile new file mode 100644 index 0000000..f8eb9fc --- /dev/null +++ b/sw-old/z80/tests/ram/makefile @@ -0,0 +1,54 @@ +#### +# source code settings +# +OSNAME := ram_test + +CSOURCES := $(wildcard *.c) + +OBJECTS := $(patsubst %.c,build/%.rel,$(CSOURCES)) +HEXFILE := build/$(OSNAME).hex +BINARY := build/$(OSNAME).bin + +### +# compiler settings +# +CC := sdcc + +CFLAGS := -mz80 \ + -I . \ + -DDEBUG + +LDFLAGS := -mz80 \ + --no-std-crt0 build/crt0.rel \ + -pedantic + + # --code-loc 0x0120 \ + # --data-loc 0x2000 + +.PHONY: flash dirs dis clean +all: $(BINARY) + +flash: $(BINARY) + minipro -p M28C64 -w $< + +# build binary +$(BINARY): $(OBJECTS) dirs + $(CC) $(LDFLAGS) $(OBJECTS) -o $(HEXFILE) + makebin -s 8192 -yo 1 $(HEXFILE) $(BINARY) + +$(OBJECTS): build/%.rel : %.c $(CSOURCES) dirs build/crt0.rel + @printf "\n" + $(CC) $(CFLAGS) -c $< -o $@ + +build/crt0.rel: crt0.s + sdasz80 -o $< + @mv crt0.rel build/ + +dirs: + mkdir -p build + +dis: $(BINARY) + r2 -a z80 $< -c 'pd 0x10; s 0x100; pd 10; s 0x200; pd 10' + +clean: + - rm -rd build diff --git a/sw-old/z80/tests/usart/crt0.s b/sw-old/z80/tests/usart/crt0.s new file mode 100644 index 0000000..c900065 --- /dev/null +++ b/sw-old/z80/tests/usart/crt0.s @@ -0,0 +1,38 @@ + .module crt0 + .area _HEADER (ABS) + +;; Reset vectors + .org 0 + jp init + + .org 0x38 ; the instruction 0xff (not written) resets to this location + jp init + +;; main code + .org 0x100 + .globl _main + +init: + ;; Set stack pointer directly above top of memory. + ld sp,#0xffff + + ;; Start of the program + call _main + jp _exit + +_exit: + halt + ; jp _exit + +;; Ordering of segments for the linker. + .area _HOME + .area _CODE + .area _INITIALIZER + .area _GSINIT + .area _GSFINAL + + .area _DATA + .area _INITIALIZED + .area _BSEG + .area _BSS + .area _HEAP diff --git a/sw-old/z80/tests/usart/main.c b/sw-old/z80/tests/usart/main.c new file mode 100644 index 0000000..a905df2 --- /dev/null +++ b/sw-old/z80/tests/usart/main.c @@ -0,0 +1,11 @@ +#include "usart.h" +#include <stdint.h> + +void main(void) +{ + usart_init(USART_BAUDRATE_1200, USART_PARITY_NONE, USART_STOP_BITS_1); + + while (1) { + usart_write("Hello World!\n", 13); + } +} diff --git a/sw-old/z80/tests/usart/makefile b/sw-old/z80/tests/usart/makefile new file mode 100644 index 0000000..8aaf6b1 --- /dev/null +++ b/sw-old/z80/tests/usart/makefile @@ -0,0 +1,72 @@ +#### +# source code settings +# +OSNAME := usart_test + +CSOURCES := $(wildcard *.c) +LIBS := ../../arch/build/arch.a \ + ../../drivers/build/drivers.a + +OBJECTS := $(patsubst %.c,build/%.rel,$(CSOURCES)) +HEXFILE := build/$(OSNAME).hex +BINARY := build/$(OSNAME).bin + +### +# compiler settings +# +CC := sdcc + +CFLAGS := -mz80 \ + --no-std-crt0 build/crt0.rel \ + --allow-unsafe-read \ + -I . \ + -I ../../arch/include \ + -I ../../drivers/include \ + -DDEBUG + +LDFLAGS := -mz80 \ + --no-std-crt0 build/crt0.rel \ + -L ../../drivers/build \ + -l drivers.a \ + -pedantic \ + --code-loc 0x0200 + # --data-loc 0x2000 + +.PHONY: flash dirs dis clean +all: $(BINARY) + +flash: $(BINARY) + minipro -p M28C64 -w $< + +# build binary +$(BINARY): $(OBJECTS) dirs + $(CC) $(LDFLAGS) $(OBJECTS) -o $(HEXFILE) + makebin -s 8192 -yo 1 $(HEXFILE) $(BINARY) + +$(OBJECTS): build/%.rel : %.c $(CSOURCES) dirs build/crt0.rel $(LIBS) + @printf "\n" + $(CC) $(CFLAGS) -c $< -o $@ + +$(LIBS): %.a: + @printf "\n" + make -C $(shell printf $@ | sed 's:build.*.::') + +build/crt0.rel: crt0.s + sdasz80 -o $< + @mv crt0.rel build/ + +dirs: + mkdir -p build + +dis: $(BINARY) + dz80 -b -n -t $(BINARY) + r2 -a z80 $< \ + -c 'afn main 0x200; \ + pd 0x10; \ + s 0x100; \ + pd 10; \ + s 0x200; \ + pd 0x95' + +clean: + - rm -rd build |