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mtdbg fpu: 1)simplified code

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2)two pass bcd to string converter
3)new output format

git-svn-id: svn://kolibrios.org@4912 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Sergey Semyonov (Serge) 2014-04-30 11:45:59 +00:00
parent 1fc27dcb6e
commit 324a77be90
2 changed files with 97 additions and 149 deletions
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234
programs/develop/mtdbg/gui.inc
View File

@ -723,15 +723,21 @@ draw_register:
draw_fpu_register_2: draw_fpu_register_2:
.str_buf equ esp .str_buf equ esp
.bcd_man equ .str_buf+32 .cvt_buf equ .str_buf+32
.bcd_exp equ .bcd_man+12 .bcd_man equ .cvt_buf+16
.exp equ .bcd_exp+12 .bcd_exp equ .bcd_man+10
.exp equ .bcd_exp+10
.tmp equ .exp+4 .tmp equ .exp+4
.lcl_end equ .tmp+4
sub esp, 32+12+12+4+4 sub esp, 32+16+10+10+4+4
mov eax, 0x20202020
mov edi, .str_buf mov edi, .str_buf
shl ebp, 16
lea eax, ['ST0:'+ebp]
stosd
mov eax, 0x20202020
stosd
stosd stosd
stosd stosd
stosd stosd
@ -740,43 +746,40 @@ draw_fpu_register_2:
;int3 ;int3
;nop ;nop
mov edx, ebp
shl edx, 4
movzx eax, word [_fsw] movzx eax, word [_fsw]
shr eax, 11 shr eax, 11
add eax, ebp add eax, ebp
shr ebp, 12
and eax, 7 and eax, 7
bt dword [_ftw], eax bt dword [_ftw], eax
jc .A6M jc .A6M
mov dword [.str_buf],' emp' mov dword [.str_buf+8],' emp'
mov word [.str_buf+4],'ty' mov word [.str_buf+8+4],'ty'
jmp .display jmp .display
mov cx, [_st0+edx+8] mov cx, [_st0+ebp+8]
and cx, 0x7FFF ;clear sign flag and cx, 0x7FFF ;clear sign flag
jz .A6M jz .A6M
cmp cx, 0x7FFF cmp cx, 0x7FFF
jne .decode jne .decode
mov dword [.str_buf], ' inv' mov dword [.str_buf+6], ' inv'
mov dword [.str_buf+4], 'alid' mov dword [.str_buf+6+4], 'alid'
jmp .display jmp .display
.A6M: .A6M:
mov eax, dword [_st0+edx] mov eax, dword [_st0+ebp]
or eax, dword [_st0+edx+4] or eax, dword [_st0+ebp+4]
jnz .decode jnz .decode
mov dword [.str_buf], ' 0.0' mov dword [.str_buf+10], ' 0.0'
jmp .display jmp .display
.decode: .decode:
fld tword [_st0+edx] fld tword [_st0+ebp]
fabs fabs
fld st0 fld st0
fldlg2 fldlg2
@ -814,133 +817,93 @@ draw_fpu_register_2:
inc dword [.exp] inc dword [.exp]
fild dword [.exp] fild dword [.exp]
fld st0 fld st0
fbstp tword [.bcd_exp] fbstp tword [.bcd_exp]
fldl2t fldl2t
fmulp fmulp
fld st0 fld st0
frndint frndint
fxch fxch
fsub st,st1 fsub st,st1
f2xm1 f2xm1
fld1 fld1
faddp faddp
fscale fscale
fstp st1 fstp st1
fdivp fdivp
.done: .done:
fimul dword [n_digits] fimul dword [n_digits]
fbstp tword [.bcd_man] fbstp tword [.bcd_man]
lea esi, [.bcd_man-1] lea edi, [.cvt_buf]
mov edi, .str_buf mov edx, dword [.bcd_man]
mov ecx, 8
mov ecx, 9
mov eax, 0x10000
mov al, [esi+ecx+1]
cmp al, 0x80 ; check for sign
jne .mantis_2_str
mov al, '-'
stosb
.mantis_2_str:
mov al, [esi+ecx]
test al, al
jnz @f
bt eax, 16
jc .skip_lb
@@: @@:
mov ah, al xor eax, eax
shr al, 4 shld eax, edx, 4
jnz .write_h
bt eax, 16
jc .skip_hb
.write_h:
add al, 0x30
stosb stosb
btr eax, 16 shl edx, 4
jnc .skip_hb loop @B
mov al, '.'
lea esi, [.cvt_buf+7]
lea edi, [.str_buf+13]
mov ecx, 7
mov ah, 0x30
std
.skip_z:
lodsb
test al, al
jnz .body
loop .skip_z
.body:
add al, ah
stosb stosb
lodsb
.skip_hb: jcxz .point
mov al, ah loop .body
and al, 0x0F .point:
jnz .write_lb dec edi
add al, ah
bt eax, 16 mov ah, '.'
jc .skip_lb
.write_lb:
add al,0x30
stosb
btr eax, 16
jnc .skip_lb
mov al, '.'
stosb
.skip_lb:
loop .mantis_2_str
mov eax, [.exp]
test eax, eax
jz .display
mov ax, ' e'
stosw stosw
lea esi, [.bcd_exp-1] bt word [_st0+ebp+8], 15
mov ecx, 9 jnc .m_sign
mov eax,0x10000
mov al, [esi+ecx+1]
cmp al, 0x80
jne .exp_2_str
mov al, '-' mov al, '-'
mov [edi+1], al
.m_sign:
cld
mov dx, word [.bcd_exp]
test dx, dx
jz .display
lea edi, [.str_buf+15]
mov ax, 'E '
cmp byte [.bcd_exp+9], 0x80
jne .w_e_sign
mov ax, 'E-'
.w_e_sign:
stosw
mov ecx, 4
.skip_lz:
xor eax, eax
shld ax,dx,4
shl dx, 4
test al, al
jnz .w_exp
loop .skip_lz
.w_exp:
add al, 0x30
stosb stosb
xor eax, eax
.exp_2_str: shld ax, dx, 4
mov al, [esi+ecx] shl dx,4
test al, al loop .w_exp
jnz @f
bt eax, 16
jc .skip_lb2
@@:
mov ah, al
shr al, 4
jnz .write_h2
bt eax, 16
jc .skip_hb2
.write_h2:
add al, 0x30
stosb
btr eax, 16
.skip_hb2:
mov al, ah
and al, 0x0F
jnz .write_lb2
bt eax, 16
jc .skip_lb2
.write_lb2:
add al, 0x30
stosb
btr eax, 16
.skip_lb2:
loop .exp_2_str
.display: .display:
@ -952,16 +915,16 @@ draw_fpu_register_2:
mov ecx, (COLOR_TXT_NORMAL or 0x40000000) mov ecx, (COLOR_TXT_NORMAL or 0x40000000)
mov eax, dword [_st0+edx] mov eax, dword [_st0+ebp]
cmp eax, dword [_st0+(oldcontext-context)+edx] cmp eax, dword [_st0+(oldcontext-context)+ebp]
jne .scol jne .scol
mov eax, dword [_st0+edx+4] mov eax, dword [_st0+ebp+4]
cmp eax, dword [_st0+(oldcontext-context)+edx+4] cmp eax, dword [_st0+(oldcontext-context)+ebp+4]
jne .scol jne .scol
mov ax, word [_st0+edx+8] mov ax, word [_st0+ebp+8]
cmp ax, word [_st0+(oldcontext-context)+edx+8] cmp ax, word [_st0+(oldcontext-context)+ebp+8]
je .do_label je .do_label
.scol: .scol:
@ -971,18 +934,13 @@ draw_fpu_register_2:
; draw a text string in the window ; draw a text string in the window
mov eax, 4 mov eax, 4
mov esi, eax mov esi, 21
lea edx, [fpu_strs+ebp*4] mov edx, .str_buf
mov edi, COLOR_BG_NORMAL mov edi, COLOR_BG_NORMAL
int 0x40 int 0x40
mov esi, 16 shr ebp, 4
mov edx, .str_buf add esp, 32+16+10+10+4+4
add ebx, 0x180000
int 0x40
sub ebx, 0x180000
add esp, 32+12+12+4+4
ret ret

12
programs/develop/mtdbg/mtdbg.asm
View File

@ -2304,16 +2304,6 @@ regs_strs:
db 'EIP=' db 'EIP='
db 'EFLAGS=' db 'EFLAGS='
fpu_strs:
db 'ST0='
db 'ST1='
db 'ST2='
db 'ST3='
db 'ST4='
db 'ST5='
db 'ST6='
db 'ST7='
sse_strs: sse_strs:
db '-XMM0-' db '-XMM0-'
db '-XMM1-' db '-XMM1-'
@ -2334,7 +2324,7 @@ avx_strs:
db '-YMM7-' db '-YMM7-'
align 4 align 4
n_digits dd 100000000 n_digits dd 10000000
debuggee_pid dd 0 debuggee_pid dd 0
bSuspended db 0 bSuspended db 0
bAfterGo db 0 bAfterGo db 0