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More m68k rearrangments.

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This commit is contained in:
Markus F.X.J. Oberhumer 2006-08-26 13:25:37 +02:00
parent 24ce25bb5c
commit 41847d31e7
4 changed files with 936 additions and 879 deletions
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1
.hgignore
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@ -24,6 +24,7 @@ doc/*.tex
src/GNUmakefile
src/MMakefile
src/compress_nrv*
src/*.mft
src/*.rc
src/*.d

1741
src/stub/m68k-atari.tos.h
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1
src/stub/src/arch/m68k/m68000/Makefile.extra
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@ -33,6 +33,7 @@ lzma_d_c%.S : tc_bfdname = elf32-m68k
tc.m68k-lzma.gcc = $(tc.m68k-atari.tos.gcc)
# FIXME / TODO: we still generate references to __mulsi3
##tc.m68k-lzma.gcc += -m68020
##tc.m68k-lzma.gcc += -mshort -D_LZMA_UINT32_IS_ULONG
tc.m68k-lzma.gcc += -Os -fomit-frame-pointer
tc.m68k-lzma.gcc += -fwrapv
tc.m68k-lzma.gcc += -ffunction-sections

72
src/stub/src/m68k-atari.tos.S
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@ -28,7 +28,6 @@
*/
.altmacro
#define NRV_BB 8
/*
@ -148,11 +147,11 @@ super: move.l (0x10),-(sp)
fc1:
// try 68030
lea fc2(pc),a0
dc.w 0x4e7a, 0x0002 // movec.l cacr,d0 // [m68020]
dc.w 0x4e7a, 0x0002 // movec.l cacr,d0 // [m68030]
move.l d0,d1
or.w #0x0808,d1
dc.w 0x4e7b, 0x1002 // movec.l d1,cacr // [m68020]
dc.w 0x4e7b, 0x0002 // movec.l d0,cacr // [m68020]
dc.w 0x4e7b, 0x1002 // movec.l d1,cacr // [m68030]
dc.w 0x4e7b, 0x0002 // movec.l d0,cacr // [m68030]
// bras ret
fc2:
@ -467,22 +466,23 @@ section CUTPOINT
#define d2 D3
#define NRV_BB 8
#undef SMALL
section nrv2b.fast
# define N(x) nrv2b_fast_ ## x ## _8
section nrv2b_8.fast
# define N(x) nrv2b_8_fast_ ## x
# include "arch/m68k/rename.ash"
# include "arch/m68k/nrv2b_d.ash"
# undef N
section nrv2d.fast
# define N(x) nrv2d_fast_ ## x ## _8
section nrv2d_8.fast
# define N(x) nrv2d_8_fast_ ## x
# include "arch/m68k/rename.ash"
# include "arch/m68k/nrv2d_d.ash"
# undef N
section nrv2e.fast
# define N(x) nrv2e_fast_ ## x ## _8
section nrv2e_8.fast
# define N(x) nrv2e_8_fast_ ## x
# include "arch/m68k/rename.ash"
# include "arch/m68k/nrv2e_d.ash"
# undef N
@ -490,26 +490,28 @@ section nrv2e.fast
#define SMALL 1
section nrv2b.small
# define N(x) nrv2b_small_ ## x ## _8
section nrv2b_8.small
# define N(x) nrv2b_8_small_ ## x
# include "arch/m68k/rename.ash"
# include "arch/m68k/nrv2b_d.ash"
# undef N
section nrv2d.small
# define N(x) nrv2d_small_ ## x ## _8
section nrv2d_8.small
# define N(x) nrv2d_8_small_ ## x
# include "arch/m68k/rename.ash"
# include "arch/m68k/nrv2d_d.ash"
# undef N
section nrv2e.small
# define N(x) nrv2e_small_ ## x ## _8
section nrv2e_8.small
# define N(x) nrv2e_8_small_ ## x
# include "arch/m68k/rename.ash"
# include "arch/m68k/nrv2e_d.ash"
# undef N
#include "arch/m68k/rename.ash"
#undef NRV_BB
#undef SMALL
#undef a0
#undef a1
@ -519,6 +521,42 @@ section nrv2e.small
// note: d3.l is 0 from decompressor above
// ------------- support
section __mulsi3
#if 0
// compute high-word
move.w 4(sp),d1 // 12
move.w 6(sp),d0 // 12
mulu.w 8(sp),d0 // 78
mulu.w 10(sp),d1 // 78
add.w d1,d0 // 4
swap d0 // 4
clr.w d0 // 4
// add low-word
move.w 6(sp),d1 // 12
mulu.w 10(sp),d1 // 78
add.l d1,d0 // 6
rts // 16
#else
// smaller and faster
// compute high-word
lea 4(sp),a0 // 8
move.w (a0)+,d1 // 8
move.w (a0)+,d0 // 8
mulu.w (a0)+,d0 // 74
mulu.w (a0),d1 // 74
add.w d1,d0 // 4
swap d0 // 4
clr.w d0 // 4
// add low-word
move.w 6(sp),d1 // 12
mulu.w (a0),d1 // 74
add.l d1,d0 // 6
rts // 16
#endif
// ------------- reloc
section reloc
@ -528,8 +566,8 @@ section reloc
// note: d3.l is still 0
moveq.l #1,d5
move.l a6,a0 // a0 = start of relocations
moveq.l #1,d5
move.l d4,a1
add.l (a0)+,a1 // get initial fixup