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cpudev doc
This commit is contained in:
julianb0
parent
d13da7b480
commit
d4a0c925a1
3
Makefile
3
Makefile
@ -29,3 +29,6 @@ test: kas vm/a.out
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@echo "<<<<<<<<"
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@echo
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wc:
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@cat $(shell find -name *.[kch]) $(shell find -name *.py) | wc -l
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25
ka/dos.k
25
ka/dos.k
@ -15,29 +15,10 @@ _start:
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jmp .1
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;
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; Some definitions
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; Preprocessor misc.
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;
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CHAR_MIN := 0x80
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SHRT_MIN := 0x8000
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INT_MIN := 0x80000000
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LONG_MIN := 0x8000000000000000
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XCHAR_MIN := 0xFFFFFFFFFFFFFF80
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XSHRT_MIN := 0xFFFFFFFFFFFF8000
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XINT_MIN := 0xFFFFFFFF80000000
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CHAR_MAX := 0x7F
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SHRT_MAX := 0x7FFF
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INT_MAX := 0x7FFFFFFF
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LONG_MAX := 0x7FFFFFFFFFFFFFFF
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BYTE_MAX := 0xFF
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WORD_MAX := 0xFFFF
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LWORD_MAX := 0xFFFFFFFF
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QWORD_MAX := 0xFFFFFFFFFFFFFFFF
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STRLEN_MAX := 0xFFFFFFFF
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include "inc/limits.k"
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include "inc/regs.k"
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;
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; Include librairies
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23
ka/inc/limits.k
Normal file
23
ka/inc/limits.k
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@ -0,0 +1,23 @@
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; The OS/K Team licenses this file to you under the MIT license.
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; See the LICENSE file in the project root for more information.
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CHAR_MIN := 0x80
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SHRT_MIN := 0x8000
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INT_MIN := 0x80000000
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LONG_MIN := 0x8000000000000000
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XCHAR_MIN := 0xFFFFFFFFFFFFFF80
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XSHRT_MIN := 0xFFFFFFFFFFFF8000
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XINT_MIN := 0xFFFFFFFF80000000
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CHAR_MAX := 0x7F
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SHRT_MAX := 0x7FFF
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INT_MAX := 0x7FFFFFFF
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LONG_MAX := 0x7FFFFFFFFFFFFFFF
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BYTE_MAX := 0xFF
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WORD_MAX := 0xFFFF
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LWORD_MAX := 0xFFFFFFFF
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QWORD_MAX := 0xFFFFFFFFFFFFFFFF
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STRLEN_MAX := 0xFFFFFFFF
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66
ka/inc/regs.k
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66
ka/inc/regs.k
Normal file
@ -0,0 +1,66 @@
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; The OS/K Team licenses this file to you under the MIT license.
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; See the LICENSE file in the project root for more information.
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ID_INV := 0
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ID_RIP := 1
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ID_FLG := 2
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ID_RBP := 3
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ID_RSP := 4
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ID_RX0 := 5
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ID_RX1 := 6
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ID_RX2 := 7
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ID_RAX := 8
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ID_RBX := 9
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ID_RCX := 10
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ID_RDX := 11
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ID_RSX := 12
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ID_RBI := 13
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ID_RDI := 14
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ID_RSI := 15
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ID_NX0 := 16
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ID_NX1 := 17
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ID_NX2 := 18
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ID_NX3 := 19
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ID_NX4 := 20
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ID_NX5 := 21
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ID_NX6 := 22
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ID_NX7 := 23
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ID_AX0 := 24
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ID_AX1 := 25
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ID_AX2 := 26
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ID_AX3 := 27
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ID_AX4 := 28
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ID_AX5 := 29
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ID_AX6 := 30
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ID_AX7 := 31
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ID_LX0 := 32
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ID_LX1 := 33
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ID_LX2 := 34
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ID_LX3 := 35
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ID_LX4 := 36
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ID_LX5 := 37
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ID_LX6 := 38
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ID_LX7 := 39
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ID_CR0 := 40
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ID_CR1 := 41
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ID_CR2 := 42
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ID_CR3 := 43
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ID_CR4 := 44
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ID_CR5 := 45
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ID_CR6 := 46
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ID_CR7 := 47
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ID_SA0 := 48
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ID_SA1 := 49
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ID_SA2 := 50
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ID_SA3 := 51
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ID_SA4 := 52
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ID_SA5 := 53
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ID_SA6 := 54
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ID_SA7 := 55
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29
vm/dv/CPUDEV
Normal file
29
vm/dv/CPUDEV
Normal file
@ -0,0 +1,29 @@
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# The OS/K Team licenses this file to you under the MIT license.
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# See the LICENSE file in the project root for more information.
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CPU device function slots:
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slot ax0 ax1 ax2 thr name desc
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0-15 - - - - (reserved) (reserved)
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16 - - - - getmaxidx rax = maximal index for a register frame
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17 - - - - getrfusage rax = number of register frames active
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18 - - - - getcuridx rax = index of the current register frame
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19 i - - - isactive rax = is register frame #ax0 active?
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20 i - - y activate activates register frame #ax0
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21 i - - y deactivate deactivates register frame #ax0 (losing all its contents!)
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22 i i - y copyframe copy contents of frame #ax1 into (active) frame #ax0
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23 i i - y moveframe move frame #ax1 to (inactive) frame index #ax0
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24-31 - - - - (reserved) (reserved)
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32 i - - - loadargs load registers ax0-ax7 from frame #ax0
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33 i r - - loadreg rax = register #ax1 from frame #ax0
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34-47 - - - - (reserved) (reserved)
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48 i r i y storereg store ax2 into register #ax1 from frame #ax0
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49-63 - - - - (reserved) (reserved)
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64 i i - y idtadd mark interrupt #ax0 as handled by register frame #ax1
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65 i - - y idtdel mark interrupt #ax0 as unhandled
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66 i - - - idtquery rax = interrupt #ax0 handled? rdx = index of handling frame
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Arguments:
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i immediate
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r register index (0=inv, 1=rip, etc...)
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@ -3,10 +3,16 @@
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#include <pc/dev.h>
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#define MAX_RFRAME_IDX 255
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//
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// Register frales
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//
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reg_t **rfs = NULL;
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size_t rfs_used = 0;
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long cpudev_testfn(ctx_t *ctx, dev_t *dev)
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{
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assert(dev == &cpudev);
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rax = 4;
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rdx = 3;
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@ -15,10 +21,22 @@ long cpudev_testfn(ctx_t *ctx, dev_t *dev)
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long cpudev_poweron(ctx_t *ctx, dev_t *dev)
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{
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assert(dev == &cpudev);
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rfs = malloc(sizeof(reg_t *) * (MAX_RFRAME_IDX + 1));
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if (rfs == NULL)
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return -1;
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dev->fslots[0] = cpudev_testfn;
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dev->state = DEVGOOD;
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dev->fslots[0] = cpudev_testfn;
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return 0;
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}
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long cpudev_poweroff(ctx_t *ctx, dev_t *dev)
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{
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if (rfs)
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free(rfs);
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return 0;
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}
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23
vm/pc/arch.h
23
vm/pc/arch.h
@ -60,37 +60,16 @@ struct ctx_t
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#define R(X) ctx->r[X].val
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static inline ushort bswap16(ushort u)
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{ return ((u<<8) | (u>>8)); }
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static inline char getmempref(ushort len)
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{ return (len==1?'b':(len==2?'w':(len==4?'l':(len==8?'q':'x')))); }
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enum
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{
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E_SHT, // Shutdown instruction
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E_IMP, // Not implemented
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E_ILL, // Ill-formed
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E_ACC, // Invalid access
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E_SYS, // Supervisor only
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E_ALI, // Alignment error
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E_STA, // Stack misalignment
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E_STU, // Stack underflow
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NEXCPTS
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};
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void dumpregs(ctx_t *);
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void dumpinstr(ctx_t *, ulong, uint, ushort, acc_t *, acc_t *);
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void dumpmem(ctx_t *, ulong, ulong);
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void _except(ctx_t *, int, char *, ...) __attribute__((__noreturn__));
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void decode(ctx_t *ctx);
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#include <pc/mem.h>
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#include <pc/regs.h>
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#include <pc/decd.h>
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#include <pc/except.h>
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#include <in/arch_i.h>
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extern reg_t arch_r[NREGS];
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18
vm/pc/except.h
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18
vm/pc/except.h
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// The OS/K Team licenses this file to you under the MIT license.
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// See the LICENSE file in the project root for more information.
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enum
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{
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E_SHT, // Shutdown instruction
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E_UDF, // Undefined behavior
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E_IMP, // Not implemented
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E_ILL, // Ill-formed
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E_ACC, // Invalid access
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E_SYS, // Supervisor only
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E_ALI, // Alignment error
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E_STA, // Stack misalignment
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E_STU, // Stack underflow
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NEXCPTS
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};
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void _except(ctx_t *, int, char *, ...) __attribute__((__noreturn__));
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@ -1,6 +1,12 @@
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// The OS/K Team licenses this file to you under the MIT license.
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// See the LICENSE file in the project root for more information.
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static inline ushort bswap16(ushort u)
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{ return ((u<<8) | (u>>8)); }
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static inline char getmempref(ushort len)
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{ return (len==1?'b':(len==2?'w':(len==4?'l':(len==8?'q':'x')))); }
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#define MEMOFF (1 * 1024 * 1024)
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#define MEMSIZE (16 * 1024 * 1024) // 16MB
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