diff options
Diffstat (limited to 'sw')
| -rw-r--r-- | sw/z80/build/helvetiOS.lk | 11 | ||||
| -rw-r--r-- | sw/z80/build/helvetiOS.map | 182 | ||||
| -rw-r--r-- | sw/z80/build/helvetiOS.noi | 50 | ||||
| -rw-r--r-- | sw/z80/build/kernel/kernel.asm | 65 | ||||
| -rw-r--r-- | sw/z80/build/kernel/kernel.lst | 65 | ||||
| -rw-r--r-- | sw/z80/build/kernel/kernel.rel | 23 | ||||
| -rw-r--r-- | sw/z80/build/kernel/kernel.sym | 27 | ||||
| -rw-r--r-- | sw/z80/crt0.rel | 86 | ||||
| -rw-r--r-- | sw/z80/kernel/include/login.h | 23 | ||||
| -rw-r--r-- | sw/z80/kernel/include/progman.h | 109 | ||||
| -rw-r--r-- | sw/z80/kernel/include/syscall.h | 20 | ||||
| -rw-r--r-- | sw/z80/kernel/include/sysexe.h | 55 | ||||
| -rw-r--r-- | sw/z80/kernel/login.c | 12 | ||||
| -rw-r--r-- | sw/z80/kernel/progman.c | 90 | ||||
| -rw-r--r-- | sw/z80/kernel/sysexe.c | 14 | ||||
| -rw-r--r-- | sw/z80/libc/include/string.h | 4 | ||||
| -rw-r--r-- | sw/z80/libc/string.c | 26 |
17 files changed, 862 insertions, 0 deletions
diff --git a/sw/z80/build/helvetiOS.lk b/sw/z80/build/helvetiOS.lk new file mode 100644 index 0000000..c16247f --- /dev/null +++ b/sw/z80/build/helvetiOS.lk @@ -0,0 +1,11 @@ +-mjwx +-i build/helvetiOS.hex +-b _CODE = 0x0800 +-b _DATA = 0x8000 +-k /usr/bin/../share/sdcc/lib/z80 +-k /usr/share/sdcc/lib/z80 +-l z80 +crt0.rel +build/kernel/kernel.rel + +-e diff --git a/sw/z80/build/helvetiOS.map b/sw/z80/build/helvetiOS.map new file mode 100644 index 0000000..98210c7 --- /dev/null +++ b/sw/z80/build/helvetiOS.map @@ -0,0 +1,182 @@ + ASxxxx Linker V03.00 + NoICE + sdld, page 1. +Hexadecimal [32-Bits] + +Area Addr Size Decimal Bytes (Attributes) +-------------------------------- ---- ---- ------- ----- ------------ +. .ABS. 00000000 00000000 = 0. bytes (ABS,CON) + + Value Global Global Defined In Module + ----- -------------------------------- ------------------------ + 00000000 .__.ABS. kernel + 00000000 l__BSEG + 00000000 l__BSS + 00000000 l__CABS + 00000000 l__DABS + 00000000 l__DATA + 00000000 l__HEADER + 00000000 l__HEAP + 00000000 l__HOME + 00000000 l__INITIALIZED + 00000000 l__INITIALIZER + 00000000 s__CABS + 00000000 s__DABS + 00000000 s__HEADER + 00000000 s__HEADER0 + 00000000 s__HEADER1 + 00000000 s__HEADER2 + 00000000 s__HEADER3 + 00000000 s__HEADER4 + 00000000 s__HEADER5 + 00000000 s__HEADER6 + 00000000 s__HEADER7 + 00000000 s__HEADER8 + 00000001 l__GSFINAL + 00000002 l__HEADER1 + 00000002 l__HEADER2 + 00000002 l__HEADER3 + 00000002 l__HEADER4 + 00000002 l__HEADER5 + 00000002 l__HEADER6 + 00000002 l__HEADER7 + 00000003 l__HEADER0 + 00000006 l__GSINIT + 0000000C l__HEADER8 + 00000017 l__CODE + 00000800 s__CODE + 00000817 s__GSINIT + 00000817 s__HOME + 00000817 s__INITIALIZER + 0000081D s__GSFINAL + 00008000 s__BSEG + 00008000 s__BSS + 00008000 s__DATA + 00008000 s__HEAP + 00008000 s__INITIALIZED + ASxxxx Linker V03.00 + NoICE + sdld, page 2. +Hexadecimal [32-Bits] + +Area Addr Size Decimal Bytes (Attributes) +-------------------------------- ---- ---- ------- ----- ------------ +_CODE 00000800 00000017 = 23. bytes (REL,CON) + + Value Global Global Defined In Module + ----- -------------------------------- ------------------------ + 00000800 __clock crt0 + 00000804 _exit crt0 + 0000080A _main kernel + ASxxxx Linker V03.00 + NoICE + sdld, page 3. +Hexadecimal [32-Bits] + +Area Addr Size Decimal Bytes (Attributes) +-------------------------------- ---- ---- ------- ----- ------------ +_HEADER0 00000000 00000003 = 3. bytes (ABS,CON) + + Value Global Global Defined In Module + ----- -------------------------------- ------------------------ + ASxxxx Linker V03.00 + NoICE + sdld, page 4. +Hexadecimal [32-Bits] + +Area Addr Size Decimal Bytes (Attributes) +-------------------------------- ---- ---- ------- ----- ------------ +_HEADER1 00000000 00000002 = 2. bytes (ABS,CON) + + Value Global Global Defined In Module + ----- -------------------------------- ------------------------ + ASxxxx Linker V03.00 + NoICE + sdld, page 5. +Hexadecimal [32-Bits] + +Area Addr Size Decimal Bytes (Attributes) +-------------------------------- ---- ---- ------- ----- ------------ +_HEADER2 00000000 00000002 = 2. bytes (ABS,CON) + + Value Global Global Defined In Module + ----- -------------------------------- ------------------------ + ASxxxx Linker V03.00 + NoICE + sdld, page 6. +Hexadecimal [32-Bits] + +Area Addr Size Decimal Bytes (Attributes) +-------------------------------- ---- ---- ------- ----- ------------ +_HEADER3 00000000 00000002 = 2. bytes (ABS,CON) + + Value Global Global Defined In Module + ----- -------------------------------- ------------------------ + ASxxxx Linker V03.00 + NoICE + sdld, page 7. +Hexadecimal [32-Bits] + +Area Addr Size Decimal Bytes (Attributes) +-------------------------------- ---- ---- ------- ----- ------------ +_HEADER4 00000000 00000002 = 2. bytes (ABS,CON) + + Value Global Global Defined In Module + ----- -------------------------------- ------------------------ + ASxxxx Linker V03.00 + NoICE + sdld, page 8. +Hexadecimal [32-Bits] + +Area Addr Size Decimal Bytes (Attributes) +-------------------------------- ---- ---- ------- ----- ------------ +_HEADER5 00000000 00000002 = 2. bytes (ABS,CON) + + Value Global Global Defined In Module + ----- -------------------------------- ------------------------ + ASxxxx Linker V03.00 + NoICE + sdld, page 9. +Hexadecimal [32-Bits] + +Area Addr Size Decimal Bytes (Attributes) +-------------------------------- ---- ---- ------- ----- ------------ +_HEADER6 00000000 00000002 = 2. bytes (ABS,CON) + + Value Global Global Defined In Module + ----- -------------------------------- ------------------------ + ASxxxx Linker V03.00 + NoICE + sdld, page 10. +Hexadecimal [32-Bits] + +Area Addr Size Decimal Bytes (Attributes) +-------------------------------- ---- ---- ------- ----- ------------ +_HEADER7 00000000 00000002 = 2. bytes (ABS,CON) + + Value Global Global Defined In Module + ----- -------------------------------- ------------------------ + ASxxxx Linker V03.00 + NoICE + sdld, page 11. +Hexadecimal [32-Bits] + +Area Addr Size Decimal Bytes (Attributes) +-------------------------------- ---- ---- ------- ----- ------------ +_HEADER8 00000000 0000000C = 12. bytes (ABS,CON) + + Value Global Global Defined In Module + ----- -------------------------------- ------------------------ + ASxxxx Linker V03.00 + NoICE + sdld, page 12. +Hexadecimal [32-Bits] + +Area Addr Size Decimal Bytes (Attributes) +-------------------------------- ---- ---- ------- ----- ------------ +_GSINIT 00000817 00000006 = 6. bytes (REL,CON) + + Value Global Global Defined In Module + ----- -------------------------------- ------------------------ + 00000817 gsinit crt0 + + ASxxxx Linker V03.00 + NoICE + sdld, page 13. +Hexadecimal [32-Bits] + +Area Addr Size Decimal Bytes (Attributes) +-------------------------------- ---- ---- ------- ----- ------------ +_GSFINAL 0000081D 00000001 = 1. bytes (REL,CON) + + Value Global Global Defined In Module + ----- -------------------------------- ------------------------ + ASxxxx Linker V03.00 + NoICE + sdld, page 14. + +Files Linked [ module(s) ] + +crt0.rel [ crt0 ] +build/kernel/kernel.rel [ kernel ] + + ASxxxx Linker V03.00 + NoICE + sdld, page 15. + +User Base Address Definitions + +_CODE = 0x0800 +_DATA = 0x8000 + +
\ No newline at end of file diff --git a/sw/z80/build/helvetiOS.noi b/sw/z80/build/helvetiOS.noi new file mode 100644 index 0000000..1b9c284 --- /dev/null +++ b/sw/z80/build/helvetiOS.noi @@ -0,0 +1,50 @@ +DEF .__.ABS. 0x0 +DEF l__BSEG 0x0 +DEF l__BSS 0x0 +DEF l__CABS 0x0 +DEF l__DABS 0x0 +DEF l__DATA 0x0 +DEF l__HEADER 0x0 +DEF l__HEAP 0x0 +DEF l__HOME 0x0 +DEF l__INITIALIZED 0x0 +DEF l__INITIALIZER 0x0 +DEF s__CABS 0x0 +DEF s__DABS 0x0 +DEF s__HEADER 0x0 +DEF s__HEADER0 0x0 +DEF s__HEADER1 0x0 +DEF s__HEADER2 0x0 +DEF s__HEADER3 0x0 +DEF s__HEADER4 0x0 +DEF s__HEADER5 0x0 +DEF s__HEADER6 0x0 +DEF s__HEADER7 0x0 +DEF s__HEADER8 0x0 +DEF l__GSFINAL 0x1 +DEF l__HEADER1 0x2 +DEF l__HEADER2 0x2 +DEF l__HEADER3 0x2 +DEF l__HEADER4 0x2 +DEF l__HEADER5 0x2 +DEF l__HEADER6 0x2 +DEF l__HEADER7 0x2 +DEF l__HEADER0 0x3 +DEF l__GSINIT 0x6 +DEF l__HEADER8 0xC +DEF l__CODE 0x17 +DEF s__CODE 0x800 +DEF s__GSINIT 0x817 +DEF s__HOME 0x817 +DEF s__INITIALIZER 0x817 +DEF s__GSFINAL 0x81D +DEF s__BSEG 0x8000 +DEF s__BSS 0x8000 +DEF s__DATA 0x8000 +DEF s__HEAP 0x8000 +DEF s__INITIALIZED 0x8000 +DEF __clock 0x800 +DEF _exit 0x804 +DEF _main 0x80A +DEF gsinit 0x817 +LOAD build/helvetiOS.ihx diff --git a/sw/z80/build/kernel/kernel.asm b/sw/z80/build/kernel/kernel.asm new file mode 100644 index 0000000..a29db4d --- /dev/null +++ b/sw/z80/build/kernel/kernel.asm @@ -0,0 +1,65 @@ +;-------------------------------------------------------- +; File Created by SDCC : free open source ANSI-C Compiler +; Version 3.5.0 #9253 (Mar 24 2016) (Linux) +; This file was generated Tue May 2 18:13:35 2017 +;-------------------------------------------------------- + .module kernel + .optsdcc -mz80 + +;-------------------------------------------------------- +; Public variables in this module +;-------------------------------------------------------- + .globl _main +;-------------------------------------------------------- +; special function registers +;-------------------------------------------------------- +;-------------------------------------------------------- +; ram data +;-------------------------------------------------------- + .area _DATA +;-------------------------------------------------------- +; ram data +;-------------------------------------------------------- + .area _INITIALIZED +;-------------------------------------------------------- +; absolute external ram data +;-------------------------------------------------------- + .area _DABS (ABS) +;-------------------------------------------------------- +; global & static initialisations +;-------------------------------------------------------- + .area _HOME + .area _GSINIT + .area _GSFINAL + .area _GSINIT +;-------------------------------------------------------- +; Home +;-------------------------------------------------------- + .area _HOME + .area _HOME +;-------------------------------------------------------- +; code +;-------------------------------------------------------- + .area _CODE +;kernel/kernel.c:4: void main(void) +; --------------------------------- +; Function main +; --------------------------------- +_main:: +;kernel/kernel.c:7: for (i = 0; i < 10; i++) { + ld de,#0x000A +00104$: +;kernel/kernel.c:8: j--; + ld c,e + ld b,d + dec bc + ld e, c +;kernel/kernel.c:7: for (i = 0; i < 10; i++) { + ld a,b + ld d,a + or a,c + jr NZ,00104$ + ret + .area _CODE + .area _INITIALIZER + .area _CABS (ABS) diff --git a/sw/z80/build/kernel/kernel.lst b/sw/z80/build/kernel/kernel.lst new file mode 100644 index 0000000..8ec7438 --- /dev/null +++ b/sw/z80/build/kernel/kernel.lst @@ -0,0 +1,65 @@ + 1 ;-------------------------------------------------------- + 2 ; File Created by SDCC : free open source ANSI-C Compiler + 3 ; Version 3.5.0 #9253 (Mar 24 2016) (Linux) + 4 ; This file was generated Tue May 2 18:13:35 2017 + 5 ;-------------------------------------------------------- + 6 .module kernel + 7 .optsdcc -mz80 + 8 + 9 ;-------------------------------------------------------- + 10 ; Public variables in this module + 11 ;-------------------------------------------------------- + 12 .globl _main + 13 ;-------------------------------------------------------- + 14 ; special function registers + 15 ;-------------------------------------------------------- + 16 ;-------------------------------------------------------- + 17 ; ram data + 18 ;-------------------------------------------------------- + 19 .area _DATA + 20 ;-------------------------------------------------------- + 21 ; ram data + 22 ;-------------------------------------------------------- + 23 .area _INITIALIZED + 24 ;-------------------------------------------------------- + 25 ; absolute external ram data + 26 ;-------------------------------------------------------- + 27 .area _DABS (ABS) + 28 ;-------------------------------------------------------- + 29 ; global & static initialisations + 30 ;-------------------------------------------------------- + 31 .area _HOME + 32 .area _GSINIT + 33 .area _GSFINAL + 34 .area _GSINIT + 35 ;-------------------------------------------------------- + 36 ; Home + 37 ;-------------------------------------------------------- + 38 .area _HOME + 39 .area _HOME + 40 ;-------------------------------------------------------- + 41 ; code + 42 ;-------------------------------------------------------- + 43 .area _CODE + 44 ;kernel/kernel.c:4: void main(void) + 45 ; --------------------------------- + 46 ; Function main + 47 ; --------------------------------- + 0000 48 _main:: + 49 ;kernel/kernel.c:7: for (i = 0; i < 10; i++) { + 0000 11 0A 00 [10] 50 ld de,#0x000A + 0003 51 00104$: + 52 ;kernel/kernel.c:8: j--; + 0003 4B [ 4] 53 ld c,e + 0004 42 [ 4] 54 ld b,d + 0005 0B [ 6] 55 dec bc + 0006 59 [ 4] 56 ld e, c + 57 ;kernel/kernel.c:7: for (i = 0; i < 10; i++) { + 0007 78 [ 4] 58 ld a,b + 0008 57 [ 4] 59 ld d,a + 0009 B1 [ 4] 60 or a,c + 000A 20 F7 [12] 61 jr NZ,00104$ + 000C C9 [10] 62 ret + 63 .area _CODE + 64 .area _INITIALIZER + 65 .area _CABS (ABS) diff --git a/sw/z80/build/kernel/kernel.rel b/sw/z80/build/kernel/kernel.rel new file mode 100644 index 0000000..1079edc --- /dev/null +++ b/sw/z80/build/kernel/kernel.rel @@ -0,0 +1,23 @@ +XL2 +H 9 areas 2 global symbols +M kernel +O -mz80 +S .__.ABS. Def0000 +A _CODE size D flags 0 addr 0 +S _main Def0000 +A _DATA size 0 flags 0 addr 0 +A _INITIALIZED size 0 flags 0 addr 0 +A _DABS size 0 flags 8 addr 0 +A _HOME size 0 flags 0 addr 0 +A _GSINIT size 0 flags 0 addr 0 +A _GSFINAL size 0 flags 0 addr 0 +A _INITIALIZER size 0 flags 0 addr 0 +A _CABS size 0 flags 8 addr 0 +T 00 00 +R 00 00 00 00 +T 00 00 11 0A 00 +R 00 00 00 00 +T 03 00 +R 00 00 00 00 +T 03 00 4B 42 0B 59 78 57 B1 20 F7 C9 +R 00 00 00 00 diff --git a/sw/z80/build/kernel/kernel.sym b/sw/z80/build/kernel/kernel.sym new file mode 100644 index 0000000..d01735c --- /dev/null +++ b/sw/z80/build/kernel/kernel.sym @@ -0,0 +1,27 @@ + ASxxxx Assembler V02.00 + NoICE + SDCC mods (Zilog Z80 / Hitachi HD64180), page 1. +Hexadecimal [16-Bits] + +Symbol Table + + .__.$$$. = 2710 L + .__.ABS. = 0000 G + .__.CPU. = 0000 L + .__.H$L. = 0000 L + 0 _main 0000 GR + + + ASxxxx Assembler V02.00 + NoICE + SDCC mods (Zilog Z80 / Hitachi HD64180), page 2. +Hexadecimal [16-Bits] + +Area Table + + 0 _CODE size D flags 0 + 1 _DATA size 0 flags 0 + 2 _INITIALIZED size 0 flags 0 + 3 _DABS size 0 flags 8 + 4 _HOME size 0 flags 0 + 5 _GSINIT size 0 flags 0 + 6 _GSFINAL size 0 flags 0 + 7 _INITIALIZER size 0 flags 0 + 8 _CABS size 0 flags 8 + diff --git a/sw/z80/crt0.rel b/sw/z80/crt0.rel new file mode 100644 index 0000000..809c0e6 --- /dev/null +++ b/sw/z80/crt0.rel @@ -0,0 +1,86 @@ +XL2 +H 14 areas 5 global symbols +M crt0 +S _main Ref0000 +S .__.ABS. Def0000 +A _CODE size A flags 0 addr 0 +S __clock Def0000 +S _exit Def0004 +A _HEADER size 0 flags 8 addr 0 +A _HEADER0 size 3 flags 8 addr 0 +A _HEADER1 size 2 flags 8 addr 8 +A _HEADER2 size 2 flags 8 addr 10 +A _HEADER3 size 2 flags 8 addr 18 +A _HEADER4 size 2 flags 8 addr 20 +A _HEADER5 size 2 flags 8 addr 28 +A _HEADER6 size 2 flags 8 addr 30 +A _HEADER7 size 2 flags 8 addr 38 +A _HEADER8 size C flags 8 addr 100 +A _HOME size 0 flags 0 addr 0 +A _INITIALIZER size 0 flags 0 addr 0 +A _GSINIT size 6 flags 0 addr 0 +S gsinit Def0000 +A _GSFINAL size 1 flags 0 addr 0 +A _DATA size 0 flags 0 addr 0 +A _INITIALIZED size 0 flags 0 addr 0 +A _BSEG size 0 flags 0 addr 0 +A _BSS size 0 flags 0 addr 0 +A _HEAP size 0 flags 0 addr 0 +T 00 00 +R 00 00 02 00 +T 00 00 C3 00 01 +R 00 00 02 00 00 03 0A 00 +T 08 00 +R 00 00 03 00 +T 08 00 ED 4D +R 00 00 03 00 +T 10 00 +R 00 00 04 00 +T 10 00 ED 4D +R 00 00 04 00 +T 18 00 +R 00 00 05 00 +T 18 00 ED 4D +R 00 00 05 00 +T 20 00 +R 00 00 06 00 +T 20 00 ED 4D +R 00 00 06 00 +T 28 00 +R 00 00 07 00 +T 28 00 ED 4D +R 00 00 07 00 +T 30 00 +R 00 00 08 00 +T 30 00 ED 4D +R 00 00 08 00 +T 38 00 +R 00 00 09 00 +T 38 00 ED 4D +R 00 00 09 00 +T 00 01 +R 00 00 0A 00 +T 00 01 +R 00 00 0A 00 +T 00 01 31 FF FF CD 00 00 CD 00 00 C3 04 00 +R 00 00 0A 00 00 06 0D 00 02 09 00 00 00 0C 00 00 +T 00 00 +R 00 00 00 00 +T 00 00 3E 02 CF C9 +R 00 00 00 00 +T 04 00 +R 00 00 00 00 +T 04 00 3E 00 CF +R 00 00 00 00 +T 07 00 +R 00 00 00 00 +T 07 00 76 18 FD +R 00 00 00 00 +T 00 00 +R 00 00 0D 00 +T 00 00 78 B1 28 02 ED B0 +R 00 00 0D 00 +T 06 00 +R 00 00 0D 00 +T 00 00 C9 +R 00 00 0E 00 diff --git a/sw/z80/kernel/include/login.h b/sw/z80/kernel/include/login.h new file mode 100644 index 0000000..5fa4b5e --- /dev/null +++ b/sw/z80/kernel/include/login.h @@ -0,0 +1,23 @@ +#ifndef LOGIN_H +#define LOGIN_H + +#include "types.h" + +#define LOGIN_PC // TODO find an address in ROM, to perform jumps + +#define PWD_ADDR // TODO find an address in ROM, password +#define PWD_SIZE 8 + +/* +* It returns 1 if succeded, otherwise 0 +*/ + +int8_t authenticate(const char *pwd); + +/* +* It sets the password in the ROM space, maximum 8 characters +*/ + +void set_pwd(const char *pwd); + +#endif
\ No newline at end of file diff --git a/sw/z80/kernel/include/progman.h b/sw/z80/kernel/include/progman.h new file mode 100644 index 0000000..b59e14a --- /dev/null +++ b/sw/z80/kernel/include/progman.h @@ -0,0 +1,109 @@ +#ifndef PROGRAM_MAN +#define PROGRAM_MAN + +#include "types.h" + +#define PROG_0 0x0 +#define PROG_1 0x1 + +#define PROG_VSTART 0x1000 +#define PROG_0_PREFIX 0xA000 +#define PROG_1_PREFIX 0xC000 + +#define PROG_0_INFO // TODO +#define PROG_1_INFO // TODO find a space in the ram + +struct prog_status { + + // The program is in execution + + uint8_t running:1; + + // The program is executing its quit callback + + uint8_t exiting:1; + + uint8_t unused:6; // TODO, find a usage for these bits +}: + +struct prog_data { + + struct prog_status status; + + /* + * The following addresses are needed to map + * map the usable memory for dynamic allocations + */ + + // Virtual address of the heap + + uint8_t heap_addr:12; + + // Virtual address of the stack limit + + uint8_t stack_limit:12; + + /* + * Function called when the program exits normally + */ + + void (*quit_cb)(void); // 16 +}; + +/* +* Initialize the program manager system +*/ + +void progman_init(); + +/* +* Check if it can start a new program +* If it succedes, the program id is returned, +* otherwise it is returned an error number +* +* ! Disable virtual addresses when this function is called +*/ + +#define PROG_REQ_FULL -1 + +int8_t prog_req(); + +/* +* It allocates a program in the RAM +* To obtain the right id call prog_req() first +* Basic informations must be allocated and referenced by a program_base struct +* +* ! Disable virtual addresses when this function is called +*/ + +struct prog_space { + + void * inst_set; // pointer to the instructions set + size_t inst_size; // size of the instructions set + void * bss_data; // pointer to the bss/data space + size_t data_size; // size of the bss/data space +}; + +void prog_alloc(int8_t id, struct prog_data *data, const struct prog_space *space); + +/* +* It jumps the program counter to the given one +*/ + +void prog_exec(int8_t id, struct prog_data *data); + +/* +* It sets a quit callback +*/ + +void prog_0_set_qcb(void (*callback)(void)); +void prog_1_set_qcb(void (*callback)(void)); + +/* +* It quits a program, if a callback is set, it will be called +*/ + +void prog_0_quit(uint8_t force); +void prog_1_quit(uint8_t force); + +#endif
\ No newline at end of file diff --git a/sw/z80/kernel/include/syscall.h b/sw/z80/kernel/include/syscall.h new file mode 100644 index 0000000..9641f25 --- /dev/null +++ b/sw/z80/kernel/include/syscall.h @@ -0,0 +1,20 @@ +#ifndef SYS_CALL +#define SYS_CALL + +/* +* Enable / disable virtual address traslation +*/ + +extern void v_addr(uint8_t flag); + +/* +* Programs execution +*/ + +extern void prog_exec_0(void); +extern void prog_exec_1(void); + +extern void prog_stop_0(void); +extern void prog_stop_1(void); + +#endif
\ No newline at end of file diff --git a/sw/z80/kernel/include/sysexe.h b/sw/z80/kernel/include/sysexe.h new file mode 100644 index 0000000..9c13c09 --- /dev/null +++ b/sw/z80/kernel/include/sysexe.h @@ -0,0 +1,55 @@ +#ifndef SYS_EXE +#define SYS_EXE + +#define SYS_EXEC_ADDR // TODO find an address in Kernel space + +struct sys_progman { + + // program 0 enabled + + uint8_t prog_0_enabled:1; + + // program 1 enabled + + /* + * Obs: A program is enabled when its space is allocated + * and its virtual program counter is stored in + * the hardware or in the silent_pc. + * An enabled program is not necessarly running, it + * could be paused too. + */ + + uint8_t prog_1_enabled:1; + + // running's program id + + uint8_t prog_running:1; +}; + +struct sys_exec { + + /* + * Virtual addresses are activated + */ + + uint8_t virtual_addr:1; + + struct sys_progman progman; + + /* + * The silent_pc is the place designed to store the + * program counter of the program that's not running + */ + + uint8_t silent_pc:12; +}; + +/* +* Function to access informations +*/ + +uint8_t vaddr_enabled(); + +struct sys_progman * sys_prog_data(struct sys_progman *data); + +#endif
\ No newline at end of file diff --git a/sw/z80/kernel/login.c b/sw/z80/kernel/login.c new file mode 100644 index 0000000..5e100bf --- /dev/null +++ b/sw/z80/kernel/login.c @@ -0,0 +1,12 @@ +#include "login.h" +#include "string.h" + +int8_t authenticate(const char *pwd) { + + return !memcmp(PWD_ADDR, pwd, PWD_SIZE); +} + +void set_pwd(const char *pwd) { + + memcpy(PWD_ADDR, pwd, PWD_SIZE); +}
\ No newline at end of file diff --git a/sw/z80/kernel/progman.c b/sw/z80/kernel/progman.c new file mode 100644 index 0000000..44888f8 --- /dev/null +++ b/sw/z80/kernel/progman.c @@ -0,0 +1,90 @@ +#include "progman.h" +#include "string.h" +#include "syscall.h" +#include "sysexe.h" + +#define EMPTY_PROG_INFO 0x0 + +volatile struct prog_data *prog_0 = PROG_0_INFO, + *prog_1 = PROG_1_INFO; + +void progman_init() { + + *prog_0 = EMPTY_PROG_INFO; + *prog_1 = EMPTY_PROG_INFO; + + // TODO other stuff +} + +int8_t prog_req() { + + struct sys_progman data; + + sys_prog_data(&data); + + if (data.prog_0_enabled) + return PROG_0; + else if (data.prog_1_enabled) + return PROG_1; + + return PROG_REQ_FULL; +} + +void prog_alloc(int8_t id, struct prog_data *data, const struct prog_space *space) { + + void *addr = (id ? PROG_1_PREFIX : PROG_0_PREFIX) + PROG_VSTART; + + memcpy(addr, base->inst_set, base->inst_size); + + addr += base->inst_size; + + memcpy(addr, base->bss_data, base->data_size); + + addr += base->data_size; + + // TODO, empty heap and stack +} + +void prog_exec(int8_t id, struct prog_data *data) { + + if (id) + prog_exec_1(); // system call + else + prog_exec_0(); // system call +} + +void prog_0_set_qcb(void (*callback)(void)) { + + prog_0->quit_cb = callback; +} + +void prog_1_set_qcb(void (*callback)(void)) { + + prog_1->quit_cb = callback; +} + +void prog_0_quit(uint8_t force) { + + if (!prog_0->enabled || prog_0->exiting) + return; + + if (!force && prog_0->quit_cb) + prog_0->quit_cb(); + + *prog_0 = EMPTY_PROG_INFO; + + prog_stop_0(); // system call +} + +void prog_1_quit(uint8_t force) { + + if (!prog_1->enabled || prog_1->exiting) + return; + + if (!force && prog_1->quit_cb) + prog_1->quit_cb(); + + *prog_1 = EMPTY_PROG_INFO; + + prog_stop_1(); // system call +}
\ No newline at end of file diff --git a/sw/z80/kernel/sysexe.c b/sw/z80/kernel/sysexe.c new file mode 100644 index 0000000..f020b88 --- /dev/null +++ b/sw/z80/kernel/sysexe.c @@ -0,0 +1,14 @@ +#include "sysexe.h" + +volatile struct sys_exec *exec_data = SYS_EXEC_ADDR; + +uint8_t vaddr_enabled() { + + return exec_data->virtual_addr; +} + +struct sys_progman * sys_prog_data(struct sys_progman *data) { + + *data = exec_data->sys_progman; + return data; +}
\ No newline at end of file diff --git a/sw/z80/libc/include/string.h b/sw/z80/libc/include/string.h index f224c87..9c002e3 100644 --- a/sw/z80/libc/include/string.h +++ b/sw/z80/libc/include/string.h @@ -3,6 +3,10 @@ #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/z80/libc/string.c b/sw/z80/libc/string.c index fd6a7ff..9dd56cc 100644 --- a/sw/z80/libc/string.c +++ b/sw/z80/libc/string.c @@ -1,5 +1,15 @@ #include "string.h" +void * memset(void *dest, const int8_t src, size_t n) { + + void *dp = dest; + + while (n--) + *dp++ = src; + + return dest; +} + void *memcpy(void *dest, void *src, size_t n) { char *dp = dest; @@ -11,3 +21,19 @@ void *memcpy(void *dest, void *src, size_t n) return dest; } + +int8_t memcmp(const void *s1, const void *s2, size_t n) { + + uint8_t u1, u2; + + for ( ; n--; s1++, s2++) { + + u1 = *s1; + u2 = *s2; + + if (u1 != u2) + return u1 - u2; + } + + return 0; +}
\ No newline at end of file |