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|
#ifdef __SH5__
.section .data,"aw"
.global ___data
___data:
.section .rodata,"a"
.global ___rodata
___rodata:
#if __SH5__ == 64
.section .text,"ax"
#define LOAD_ADDR(sym, reg) \
movi (sym >> 48) & 65535, reg; \
shori (sym >> 32) & 65535, reg; \
shori (sym >> 16) & 65535, reg; \
shori sym & 65535, reg
#else
.mode SHmedia
.section .text..SHmedia32,"ax"
#define LOAD_ADDR(sym, reg) \
movi (sym >> 16) & 65535, reg; \
shori sym & 65535, reg
#endif
.global start
start:
LOAD_ADDR (_stack, r15)
pt/l zero_bss_loop, tr0
pt/l _atexit, tr1
pt/l _init, tr5
pt/l _main, tr6
pt/l _exit, tr7
! zero out bss
LOAD_ADDR (_edata, r0)
LOAD_ADDR (_end, r1)
zero_bss_loop:
stx.q r0, r63, r63
addi r0, 8, r0
bgt/l r1, r0, tr0
LOAD_ADDR (___data, r26)
LOAD_ADDR (___rodata, r27)
#if ! __SH4_NOFPU__
getcon cr0, r0
movi 1, r1
shlli r1, 15, r1
or r1, r0, r0
putcon r0, cr0
#endif
! arrange for exit to call fini
LOAD_ADDR (_fini, r2)
blink tr1, r18
! call init
blink tr5, r18
! call the mainline
blink tr6, r18
! call exit
blink tr7, r18
#else
.section .text
.global start
start:
mov.l stack_k,r15
! zero out bss
mov.l edata_k,r0
mov.l end_k,r1
mov #0,r2
start_l:
mov.l r2,@r0
add #4,r0
cmp/ge r0,r1
bt start_l
#if defined (__SH3E__) || defined(__SH4_SINGLE__) || defined(__SH4__) || defined(__SH4_SINGLE_ONLY)
mov.l set_fpscr_k, r1
jsr @r1
mov #0,r4
lds r3,fpscr
#endif /* defined (__SH3E__) || defined(__SH4_SINGLE__) || defined(__SH4__) || defined(__SH4_SINGLE_ONLY__) */
! call the mainline
mov.l main_k,r0
jsr @r0
or r0,r0
! call exit
mov r0,r4
mov.l exit_k,r0
jsr @r0
or r0,r0
.align 2
#if defined (__SH3E__) || defined(__SH4_SINGLE__) || defined(__SH4__) || defined(__SH4_SINGLE_ONLY__)
set_fpscr_k:
.long ___set_fpscr
#endif /* defined (__SH3E__) || defined(__SH4_SINGLE__) || defined(__SH4__) || defined(SH4_SINGLE_ONLY) */
stack_k:
.long _stack
edata_k:
.long _edata
end_k:
.long _end
main_k:
.long _main
exit_k:
.long _exit
#endif
#ifdef __ELF__
.section .stack,"aw"
#else
.section .stack
#endif
|
