wok rev 22176
linld: spare up to 30k more for zImage
| author | Pascal Bellard <pascal.bellard@slitaz.org> |
|---|---|
| date | Fri Nov 08 20:55:40 2019 +0100 (2019-11-08) |
| parents | 55af2ae5af8f |
| children | 7dd1225d9461 |
| files | linld/stuff/src/!COMPILE.BAT linld/stuff/src/A20.ASM linld/stuff/src/CRTL.ASM linld/stuff/src/JUMP.ASM linld/stuff/src/LOAD.CPP linld/stuff/src/pipehole.awk |
line diff
1.1 --- a/linld/stuff/src/!COMPILE.BAT Fri Nov 08 17:15:11 2019 +0100 1.2 +++ b/linld/stuff/src/!COMPILE.BAT Fri Nov 08 20:55:40 2019 +0100 1.3 @@ -3,12 +3,12 @@ 1.4 tasm /h > helptasm.log 1.5 bcc > helpbcc.log 1.6 tlink > helptlink.log 1.7 -bcc @bccopt.opt -S -mt -DUSE_ARGSTR -DLARGE_IMAGES *.cpp > cpp.log 1.8 +bcc @bccopt.opt -S -mt -DMOVE_SETUP -DUSE_ARGSTR -DLARGE_IMAGES *.cpp > cpp.log 1.9 ren LINLD.ASM LINLD.ASO 1.10 ren LOAD.ASM LOAD.ASO 1.11 ren HIMEM.ASM HIMEM.ASO 1.12 mawk -f pipehole.awk LINLD.ASO > LINLD.ASM 1.13 mawk -f pipehole.awk LOAD.ASO > LOAD.ASM 1.14 mawk -f pipehole.awk HIMEM.ASO > HIMEM.ASM 1.15 -tasm /la /m /dUSE_ARGSTR /dNO386 /dLARGE_IMAGES /dLONG_FILENAME *.asm > asm.log 1.16 +tasm /la /m /dMOVE_SETUP /dUSE_ARGSTR /dNO386 /dLARGE_IMAGES /dLONG_FILENAME *.asm > asm.log 1.17 tlink /m /s /t @link.cmd > lnk.log
2.1 --- a/linld/stuff/src/A20.ASM Fri Nov 08 17:15:11 2019 +0100 2.2 +++ b/linld/stuff/src/A20.ASM Fri Nov 08 20:55:40 2019 +0100 2.3 @@ -99,23 +99,24 @@ 2.4 push si di 2.5 extrn _heap_top:word 2.6 ifdef NO386 2.7 + mov ax,[_heap_top] 2.8 + mov cl,4 2.9 + shr ax,cl 2.10 + mov dx,cs 2.11 + add dx,ax 2.12 extrn _topseg:near 2.13 call near _topseg 2.14 - mov cl,4 2.15 mov [word sssp+2],ax 2.16 - xchg ax,dx 2.17 - mov ax,[_heap_top] 2.18 - shr ax,cl 2.19 else 2.20 p386 2.21 mov ax,[_heap_top] 2.22 shr ax,4 2.23 - mov dx,9000h 2.24 + mov dx,cs 2.25 + add dx,ax 2.26 + mov ax,9000h 2.27 endif 2.28 - mov es,dx 2.29 - mov cx,cs 2.30 - add ax,cx 2.31 - cmp ax,dx 2.32 + mov es,ax 2.33 + cmp dx,ax 2.34 jb @@nooverflow 2.35 ; Oops! We can stomp on our toes... better stop now 2.36 mov bx,offset overflow 2.37 @@ -124,9 +125,18 @@ 2.38 mov cx,[bx-5] ; size 2.39 mov si,[bx-2] ; data 2.40 xor di,di 2.41 + ifdef MOVE_SETUP 2.42 + extrn _pm_high:byte 2.43 + cmp [_pm_high],al 2.44 + jne @@move_clear 2.45 + mov di,8000h 2.46 + sub di,cx 2.47 + extrn _rm_offset:word 2.48 + mov [_rm_offset],di 2.49 + endif 2.50 @@move_clear: 2.51 movsb 2.52 - mov [byte si-1],0 2.53 + mov [byte si-1],al 2.54 loop @@move_clear 2.55 ;push ds 2.56 ;pop es
3.1 --- a/linld/stuff/src/CRTL.ASM Fri Nov 08 17:15:11 2019 +0100 3.2 +++ b/linld/stuff/src/CRTL.ASM Fri Nov 08 20:55:40 2019 +0100 3.3 @@ -59,9 +59,6 @@ 3.4 _xfer_buf db 4096 dup (?) 3.5 filecnt db ? ; in fact 0 minus file count... 3.6 nextfilename dw ? 3.7 - ifdef LARGE_IMAGES 3.8 -curdata dw ? 3.9 - endif 3.10 ifdef EXTRA 3.11 ultoabuf db 12 dup (?) 3.12 endif 3.13 @@ -586,12 +583,12 @@ 3.14 mov [byte si],ah ; set temp eos 3.15 call open 3.16 pop [word si] ; restore string 3.17 - jc @@die 3.18 + jc jcdie 3.19 mov [(image_himem di).fd],ax 3.20 mov [(image_himem di).fd2close],ax 3.21 mov bl,02h ; SEEK_END 3.22 call lseek0 3.23 -@@die: 3.24 +jcdie: 3.25 mov bx,[(image_himem di).errmsg] 3.26 jc die 3.27 ifndef NO386 3.28 @@ -663,12 +660,12 @@ 3.29 mov [(image_himem si).bufv],ax 3.30 xchg ax,si 3.31 @@vcpi_alloc: 3.32 - xor edx,edx 3.33 mov ax,0DE04h 3.34 int 67h 3.35 or ah,ah 3.36 + stc 3.37 mov bx,offset vcpi_alloc_err 3.38 - jnz die 3.39 + jnz jcdie 3.40 ; for (i = cnt-1; i >= 0; i--) 3.41 ifdef LARGE_IMAGES 3.42 mov eax,ecx 3.43 @@ -867,7 +864,9 @@ 3.44 _next_bufv: 3.45 clc 3.46 push si 3.47 - mov si,[curdata] 3.48 + mov si,0 3.49 + org $-2 3.50 +curdata dw ? 3.51 sbb ax,ax 3.52 cmc 3.53 adc ax,[(data_himem si).cacheidx] ; -1/+1
4.1 --- a/linld/stuff/src/JUMP.ASM Fri Nov 08 17:15:11 2019 +0100 4.2 +++ b/linld/stuff/src/JUMP.ASM Fri Nov 08 20:55:40 2019 +0100 4.3 @@ -157,6 +157,12 @@ 4.4 lodsw 4.5 xchg ax,bx ; get pm->fallback low word 4.6 lodsw ; get pm->fallback high word 4.7 + ifdef MOVE_SETUP 4.8 + mov si,0 4.9 + global _rm_offset:word 4.10 + org $-2 4.11 +_rm_offset dw ? 4.12 + endif 4.13 push es 4.14 call near @@isbzimage ; pop cs ; ds=es=ss 4.15 4.16 @@ -183,6 +189,14 @@ 4.17 extrn memcpy32:near 4.18 call memcpy32 4.19 4.20 + ifdef MOVE_SETUP 4.21 + ;xor di,di 4.22 + mov cx,8000h 4.23 + ;sub cx,si 4.24 + rep 4.25 + movsb 4.26 + endif 4.27 + 4.28 ifndef noelks 4.29 ifndef NO386 4.30 cmp [dword 1E6h],'SKLE'
5.1 --- a/linld/stuff/src/LOAD.CPP Fri Nov 08 17:15:11 2019 +0100 5.2 +++ b/linld/stuff/src/LOAD.CPP Fri Nov 08 20:55:40 2019 +0100 5.3 @@ -119,7 +119,7 @@ 5.4 #define topseg() 0x9000 5.5 #endif 5.6 u16 rm_size; 5.7 -static u8 pm_high; // @ = @rm_size + 2, see JUMP.ASM 5.8 +u8 pm_high; // @ = @rm_size + 2, see JUMP.ASM 5.9 static u8* rm_buf; // @ = @rm_size + 3, see JUMP.ASM 5.10 struct image_himem imgs[2]; 5.11 5.12 @@ -211,7 +211,13 @@ 5.13 // Try to load kernel high, maybe even blindly storing it 5.14 // in unallocated memory as a last resort 5.15 5.16 +#ifdef MOVE_SETUP 5.17 + extern unsigned rm_offset; 5.18 + if((u16)(((m->fallback=(u32(u16(_CS)+(u16(heap_top)>>4)+1)<<4)) 5.19 + +m->size-rm_offset)>>16) >= 5.20 +#else 5.21 if((u16)(((m->fallback=(u32(u16(_CS)+(u16(heap_top)>>4)+1)<<4))+m->size)>>16) >= 5.22 +#endif 5.23 (u16)(topseg()>>12) || _pm_high) { 5.24 m->fallback = base_himem; 5.25 }
6.1 --- a/linld/stuff/src/pipehole.awk Fri Nov 08 17:15:11 2019 +0100 6.2 +++ b/linld/stuff/src/pipehole.awk Fri Nov 08 20:55:40 2019 +0100 6.3 @@ -183,7 +183,7 @@ 6.4 print " extrn N_LXLSH@4:near" 6.5 sub(/N_LXLSH@/,"N_LXLSH@4") 6.6 } 6.7 - sub(/,0/,",dh") 6.8 + sub(/-3\],0/,"-3],dh") 6.9 if (/_base_himem\+2/ || /pop/ || /push/) next 6.10 if (/_base_himem$/) { 6.11 sub(/mov dx,/,"les dx,d")