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- ! C startup code for the Fujitsu SPARClite demo board
-
- .text
- .align 8
-
- win_ovf_trap:
- sethi %hi(win_ovf), %l3
- jmpl %lo(win_ovf)+%l3, %g0
- mov %wim, %l0
- nop
-
- win_unf_trap:
- sethi %hi(win_unf), %l3
- jmpl %lo(win_unf)+%l3, %g0
- mov %wim, %l0
- nop
-
- .globl start
-
- start:
- ! First, copy prom & trap vectors to sram
-
- set 0x30000000, %l0
- set 0xfff8, %l1
-
- copyloop:
- ldd [%l1], %l2
- std %l2, [%l0 + %l1]
- subcc %l1, 8, %l1
- bge copyloop
- nop
-
- set 0x30000000, %l0
- mov %l0, %tbr ! Install the new tbr
-
- set win_ovf_trap, %l1 ! Setup window overflow trap
- ldd [%l1], %l2
- std %l2, [%l0 + 5 * 16]
- ld [%l1 + 8], %l2
- st %l2, [%l0 + 5 * 16 + 8]
-
- set win_unf_trap, %l1 ! Setup window underflow trap
- ldd [%l1], %l2
- std %l2, [%l0 + 6 * 16]
- ld [%l1 + 8], %l2
- st %l2, [%l0 + 6 * 16 + 8]
-
- set _main, %g1
- jmp %g1
- nop
-