mirror of
https://github.com/autc04/Retro68.git
synced 2024-11-30 19:53:46 +00:00
119 lines
2.6 KiB
ArmAsm
119 lines
2.6 KiB
ArmAsm
.section ".tbss"
|
|
.align 4
|
|
.globl bg1, bg2, bg3, bg4, bg5, bg6, bg7, bg8
|
|
bg1: .word 0
|
|
bg2: .word 0
|
|
bg3: .word 0
|
|
bg4: .word 0
|
|
bg5: .word 0
|
|
bg6: .word 0
|
|
bg7: .word 0
|
|
bg8: .word 0
|
|
bl1: .word 0
|
|
bl2: .word 0
|
|
bl3: .word 0
|
|
bl4: .word 0
|
|
bl5: .word 0
|
|
bl6: .word 0
|
|
bl7: .word 0
|
|
bl8: .word 0
|
|
.text
|
|
.globl _start
|
|
.type _start,#function
|
|
.proc 04
|
|
_start:
|
|
save %sp, -160, %sp
|
|
.hidden _GLOBAL_OFFSET_TABLE_
|
|
sethi %hh(_GLOBAL_OFFSET_TABLE_), %l1
|
|
sethi %lm(_GLOBAL_OFFSET_TABLE_), %l2
|
|
or %l1, %hm(_GLOBAL_OFFSET_TABLE_), %l1
|
|
or %l2, %lo(_GLOBAL_OFFSET_TABLE_), %l2
|
|
sllx %l1, 32, %l1
|
|
add %l1, %l2, %l4
|
|
nop;nop;nop;nop
|
|
|
|
/* IE against global var */
|
|
sethi %tie_hi22(sG6), %o3
|
|
add %o3, %tie_lo10(sG6), %o3
|
|
ldx [%l4 + %o3], %o2, %tie_ldx(sG6)
|
|
add %g7, %o2, %o4, %tie_add(sG6)
|
|
nop;nop;nop;nop
|
|
|
|
/* IE -> LE against global var defined in exec */
|
|
sethi %tie_hi22(bg6), %o3
|
|
add %o3, %tie_lo10(bg6), %o5
|
|
ldx [%l4 + %o5], %o2, %tie_ldx(bg6)
|
|
add %g7, %o2, %o4, %tie_add(bg6)
|
|
nop;nop;nop;nop
|
|
|
|
/* IE -> LE against local var */
|
|
sethi %tie_hi22(bl6), %o3
|
|
add %o3, %tie_lo10(bl6), %o5
|
|
ldx [%l4 + %o5], %l2, %tie_ldx(bl6)
|
|
add %g7, %l2, %l2, %tie_add(bl6)
|
|
nop;nop;nop;nop
|
|
|
|
/* direct %g7 access IE -> LE against local var */
|
|
sethi %tie_hi22(bl8), %o3
|
|
add %o3, %tie_lo10(bl8), %o5
|
|
ldx [%l4 + %o5], %l2, %tie_ldx(bl8)
|
|
ldsw [%g7 + %l2], %l2, %tie_add(bl8)
|
|
nop;nop;nop;nop
|
|
|
|
/* IE -> LE against hidden but not local var */
|
|
sethi %tie_hi22(sh6), %o3
|
|
add %o3, %tie_lo10(sh6), %o5
|
|
ldx [%l4 + %o5], %l2, %tie_ldx(sh6)
|
|
add %g7, %l2, %l2, %tie_add(sh6)
|
|
nop;nop;nop;nop
|
|
|
|
/* direct %g7 access IE -> LE against hidden but not local var */
|
|
sethi %tie_hi22(bl8), %o3
|
|
add %o3, %tie_lo10(bl8), %o5
|
|
ldx [%l4 + %o5], %l2, %tie_ldx(bl8)
|
|
stb %l1, [%g7 + %l2], %tie_add(bl8)
|
|
nop;nop;nop;nop
|
|
|
|
/* LE, global var defined in exec */
|
|
sethi %tle_hix22(sg2), %l1
|
|
nop
|
|
xor %l1, %tle_lox10(sg2), %l2
|
|
nop
|
|
add %g7, %l2, %l3
|
|
nop;nop;nop;nop
|
|
|
|
/* LE, local var */
|
|
sethi %tle_hix22(bl2+2), %o0
|
|
xor %o0, %tle_lox10(bl2+2), %o0
|
|
add %g7, %o0, %o0
|
|
nop;nop;nop;nop
|
|
|
|
/* LE, hidden var defined in exec */
|
|
sethi %tle_hix22(sh2+1), %l1
|
|
xor %l1, %tle_lox10(sh2+1), %o5
|
|
add %g7, %o5, %o1
|
|
nop;nop;nop;nop
|
|
|
|
/* Direct %g7 access */
|
|
|
|
/* LE, global var defined in exec */
|
|
sethi %tle_hix22(sg3), %l1
|
|
xor %l1, %tle_lox10(sg3), %o5
|
|
ldx [%g7 + %o5], %o1
|
|
nop;nop;nop;nop
|
|
|
|
/* LE, local var */
|
|
sethi %tle_hix22(bl3 + 3), %o0
|
|
xor %o0, %tle_lox10(bl3 + 3), %o0
|
|
stb %o1, [%g7 + %o0]
|
|
nop;nop;nop;nop
|
|
|
|
/* LE, hidden var defined in exec */
|
|
sethi %tle_hix22(sh3 + 3), %o2
|
|
xor %o2, %tle_lox10(sh3 + 3), %o4
|
|
ldstub [%g7 + %o4], %o5
|
|
nop;nop;nop;nop
|
|
|
|
ret
|
|
restore
|