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Rev Author Line No. Line
110 heavyiron 1 
Advanced Power Management
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3 
SYSTEM CALL
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263 Ghost 5 
eax = 49
110 heavyiron 6 
dx = номер функции APM BIOS (аналогичен ax в реальном режиме)
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остальные (bx, cx) регистры по спецификации (см. apm.txt)
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результат : по спецификации (включая CF), старшая часть 32 битных регистров не определена
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MEMORY MAP
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13 
Boot:
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	0x9040 - dword - entry point of APM BIOS
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	0x9044 -  word - version (BCD)
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	0x9046 -  word - flags
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18 
 
19 
ИЗМЕНЕНИЯ
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263 Ghost 21 
bootcode.inc
110 heavyiron 22 
syscall.inc
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kernel.asm
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bootcode.inc
263 Ghost 25 
shutdown.inc
110 heavyiron 26 
 
263 Ghost 27 
##############[boot\bootcode.inc]##################
110 heavyiron 28 
 
29 
Три новых дескриптора
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31 
.............
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.............
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; GDT TABLE
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36 
gdts:
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        dw     gdte-$-1
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        dd     gdts
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        dw     0
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int_code_l:
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os_code_l:
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        dw     0xffff
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        dw     0x0000
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        db     0x00
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        dw     11011111b *256 +10011010b
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        db     0x00
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51 
int_data_l:
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os_data_l:
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        dw     0xffff
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        dw     0x0000
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        db     0x00
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        dw     11011111b *256 +10010010b
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        db     0x00
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; --------------- APM ---------------------
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apm_code_32:
263 Ghost 61 
        dw     0x0f        ; limit 64kb
110 heavyiron 62 
        db     0, 0, 0
263 Ghost 63 
        dw     11010000b *256 +10011010b
110 heavyiron 64 
        db     0x00
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apm_code_16:
263 Ghost 66 
        dw     0x0f
110 heavyiron 67 
        db     0, 0, 0
263 Ghost 68 
        dw     10010000b *256 +10011010b
110 heavyiron 69 
        db     0x00
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apm_data_16:
263 Ghost 71 
        dw     0x0f
110 heavyiron 72 
        db     0, 0, 0
263 Ghost 73 
        dw     10010000b *256 +10010010b
110 heavyiron 74 
        db     0x00
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; -----------------------------------------
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app_code_l:
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      dw ((0x80000000-std_application_base_address) shr 12) and 0xffff
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      dw 0
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      db 0
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      dw 11010000b*256+11111010b+256*((0x80000000-std_application_base_address) shr 28)
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      db std_application_base_address shr 24
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app_data_l:
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      dw (0x80000000-std_application_base_address) shr 12 and 0xffff
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      dw 0
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      db 0
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      dw 11010000b*256+11110010b+256*((0x80000000-std_application_base_address) shr 28)
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      db std_application_base_address shr 24
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graph_data_l:
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92 
        dw     0x3ff
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        dw     0x0000
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        db     0x00
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        dw     11010000b *256 +11110010b
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        db     0x00
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98 
tss0_l:
99 
 
100 
.............
101 
.............
102 
 
103 
##############[core\syscall.inc]###################
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105 
.............
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.............
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108 
 
263 Ghost 109 
      dd display_number          ; 47-WriteNum
110 
      dd display_settings        ; 48-SetRedrawType and SetButtonType
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      dd sys_apm                 ; 49-Advanced Power Management (APM)
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      dd random_shaped_window    ; 50-Window shape & scale
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      dd syscall_threads         ; 51-Threads
110 heavyiron 114 
 
115 
 
116 
.............
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.............
118 
 
119 
##############[kernel.asm]#########################
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121 
 
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Часть 1 (после метки "; SAVE REAL MODE VARIABLES"):
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.............
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.............
126 
 
127 
; SAVE REAL MODE VARIABLES
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; --------------- APM ---------------------
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	mov	eax, [0x2f0000 + 0x9040]	; entry point
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	mov	dword[apm_entry], eax
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	mov	word [apm_entry + 4], apm_code_32 - gdts
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134 
	mov	eax, [0x2f0000 + 0x9044]	; version & flags
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	mov	[apm_vf], eax
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; -----------------------------------------
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138 
.............
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.............
140 
 
141 
Часть 2 (системный вызов, расположение не критично,
142 
я расположил перед меткой "undefined_syscall:")
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144 
.............
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.............
146 
 
147 
; --------------- APM ---------------------
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apm_entry	dp	0
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apm_vf		dd	0
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align 4
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sys_apm:
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	cmp	word [apm_vf], 0	; Check APM BIOS enable
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	jne	@f
263 Ghost 154 
	or	[esp + 56], byte 1	; error
110 heavyiron 155 
	mov	[esp + 36], dword 8	; 32-bit protected-mode interface not supported
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	ret
157 
 
158 
@@:	xchg	eax, ecx
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	xchg	ebx, ecx
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161 
	cmp	al, 3
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	ja	@f
263 Ghost 163 
	and	[esp + 56], byte 0xfe	; emulate func 0..3 as func 0
110 heavyiron 164 
	mov	eax, [apm_vf]
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	mov	[esp + 36], eax
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	shr	eax, 16
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	mov	[esp + 32], eax
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	ret
169 
 
170 
@@:	call	pword [apm_entry]	; call APM BIOS
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	mov	[esp + 8 ], edi
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	mov	[esp + 12], esi
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	mov	[esp + 24], ebx
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	mov	[esp + 28], edx
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	mov	[esp + 32], ecx
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	mov	[esp + 36], eax
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	setc	al
263 Ghost 178 
	and	[esp + 56], byte 0xfe
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	or	[esp + 56], al
110 heavyiron 180 
	ret
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; -----------------------------------------
182 
 
183 
align 4
184 
 
185 
undefined_syscall:                      ; Undefined system call
186 
 
187 
.............
188 
.............
189 
 
190 
##############[boot\bootcode.inc]##################
191 
 
192 
Перед меткой "; DISPLAY VESA INFORMATION"
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194 
.............
195 
.............
196 
 
197 
; --------------- APM ---------------------
198 
	push	0
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	pop	es
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	mov	word [es : 0x9044], 0		; ver = 0.0 (APM not found)
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	mov	ax, 0x5300
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	xor	bx, bx
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	int	0x15
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	jc	apm_end				; APM not found
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	test	cx, 2
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	jz	apm_end				; APM 32-bit protected-mode interface not supported
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	mov	[es : 0x9044], ax		; Save APM Version
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	mov	[es : 0x9046], cx		; Save APM flags
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210 
	; Write APM ver ----
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	jmp	@f
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msg_apm:db	' APM x.x ', 0
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@@:	and	ax, 0xf0f
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	add	ax, '00'
263 Ghost 215 
	mov	si, msg_apm - 0x10000
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	mov	[si + 5], ah
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	mov	[si + 7], al
110 heavyiron 218 
	_setcursor 0, 3
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	call	printplain
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	_setcursor d80x25_top_num,0
221 
	; ------------------
222 
 
223 
	mov	ax, 0x5304			; Disconnect interface
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	xor	bx, bx
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	int	0x15
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	mov	ax, 0x5303			; Connect 32 bit mode interface
227 
	xor	bx, bx
228 
	int	0x15
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	; init selectors
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	movzx	eax, ax ; real-mode segment base address of protected-mode 32-bit code segment
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	shl	eax, 4
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	mov	[apm_code_32 - 0x10000 + 2], ax
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	shr	eax, 16
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	mov	[apm_code_32 - 0x10000 + 4], al
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	movzx	ecx, cx ; real-mode segment base address of protected-mode 16-bit code segment
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	shl	ecx, 4
237 
	mov	[apm_code_16 - 0x10000 + 2], cx
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	shr	ecx, 16
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	mov	[apm_code_16 - 0x10000 + 4], cl
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	movzx	edx, dx ; real-mode segment base address of protected-mode 16-bit data segment
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	shl	edx, 4
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	mov	[apm_data_16 - 0x10000 + 2], dx
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	shr	edx, 16
244 
	mov	[apm_data_16 - 0x10000 + 4], dl
245 
	mov	[es : 0x9040], ebx              ; offset of APM entry point
246 
apm_end:
247 
; -----------------------------------------
248 
 
249 
 
250 
; DISPLAY VESA INFORMATION
251 
 
252 
.............
253 
.............
254 
 
263 Ghost 255 
##############[boot\shutdown.inc]##################
256 
 
257 
Решение проблемы APM poweroff
258 
 
259 
.............
260 
.............
261 
 
262 
APM_PowerOff:
263 
        mov     ax, 5304h
264 
        xor     bx, bx
265 
        int     15h
266 
;!!!!!!!!!!!!!!!!!!!!!!!!
267 
mov ax,0x5300
268 
xor bx,bx
269 
int 0x15
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push ax
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272 
.............
273 
.............