| |
| #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 |
| |
| #ifndef __SH2A_NOFPU__ |
| #if defined (__SH3E__) || defined(__SH4_SINGLE__) || defined(__SH4__) || defined(__SH4_SINGLE_ONLY) || defined(__SH2A__) |
| 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__) || defined(__SH2A__) */ |
| #endif /* !__SH2A_NOFPU__ */ |
| |
| ! 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 |
| #ifndef __SH2A_NOFPU__ |
| #if defined (__SH3E__) || defined(__SH4_SINGLE__) || defined(__SH4__) || defined(__SH4_SINGLE_ONLY__) || defined(__SH2A__) |
| set_fpscr_k: |
| .long ___set_fpscr |
| #endif /* defined (__SH3E__) || defined(__SH4_SINGLE__) || defined(__SH4__) || defined(SH4_SINGLE_ONLY) || defined(__SH2A__) */ |
| #endif /* !__SH2A_NOFPU__ */ |
| stack_k: |
| .long _stack |
| edata_k: |
| .long _edata |
| end_k: |
| .long _end |
| main_k: |
| .long _main |
| exit_k: |
| .long _exit |
| #endif |