?? boott.s
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#define MCFG1 0x233/*#define MCFG2 0xe60 */#define MCFG2 0xE638562A#define MCFG3 0x100000#define L2MCTRLIO 0x80000000#define RAMSTART 0x40000000#define RAMSIZE 0x00080000 .seg "text" .proc 0 .align 4 .global startstart: flush set 0x10c0, %g1 ! init IU mov %g1, %psr mov %g0, %wim mov %g0, %tbr mov %g0, %y nop set 0x1000f, %g1 sta %g1, [%g0] 22: mov %asr17, %g3 and %g3, 0x1f, %g3 mov %g0, %g4 mov %g0, %g5 mov %g0, %g6 mov %g0, %g71: mov %g0, %l0 mov %g0, %l1 mov %g0, %l2 mov %g0, %l3 mov %g0, %l4 mov %g0, %l5 mov %g0, %l6 mov %g0, %l7 mov %g0, %o0 mov %g0, %o1 mov %g0, %o2 mov %g0, %o3 mov %g0, %o4 mov %g0, %o5 mov %g0, %o6 mov %g0, %o7 subcc %g3, 1, %g3 bge 1b save mov 2, %g1 mov %g1, %wim set 0x10e0, %g1 ! enable traps mov %g1, %psr nop; nop; nop; set L2MCTRLIO, %g1 set MCFG1, %g2 st %g2, [%g1] set MCFG2, %g2 st %g2, [%g1+4] set MCFG3, %g2 st %g2, [%g1+8]/* set 0xFFF00000, %g2 set 0x60000000, %g1 st %g1, [%g2] st %g1, [%g2-0x10] */ set RAMSTART+ RAMSIZE-32, %fp sub %fp, 96, %sp st %sp, [%sp] stb %g0, [%sp] set 0x4567, %g1 set 0x0123, %g2 sth %g1, [%sp] sth %g2, [%sp+2] stb %g1, [%sp+3] set 0x80000410, %g1 /* Map PCI target to AHB address 0x40000000 */ set 0x40000000, %g2 st %g2, [%g1]loop: jmp loop set RAMSTART, %g1 jmp %g1 nop.align 32?? 快捷鍵說明
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