blob: c9c93e72da911582b5b5ffda23315b274382fd8c [file] [log] [blame]
# NEC V850 startup code
.section .text
.global _start
_start:
#if defined(__v850e__) || defined(__v850e2__) || defined(__v850e2v3__) || defined(__v850e3v5__)
movea 255, r0, r20
mov 65535, r21
mov hilo(_stack), sp
mov hilo(__ep), ep
mov hilo(__gp), gp
mov hilo(__ctbp), r6
ldsr r6, ctbp
#if defined(__v850e2v3__) || defined(__v850e3v5__)
// FPU enable
stsr psw, r6
movhi 1, r0, r7
or r7, r6
ldsr r6, psw
// Initialize the FPSR
movhi 2, r0, r6
ldsr r6, fpsr
#endif
mov hilo(_edata), r6
mov hilo(_end), r7
.L0:
st.w r0, 0[r6]
addi 4, r6, r6
cmp r7, r6
bl .L0
.L1:
jarl ___main, r31
addi -16, sp, sp
mov 0, r6
mov 0, r7
mov 0, r8
jarl _main, r31
mov r10, r6
jarl _exit, r31
# else
movea 255, r0, r20
mov r0, r21
ori 65535, r0, r21
movhi hi(_stack), r0, sp
movea lo(_stack), sp, sp
movhi hi(__ep), r0, ep
movea lo(__ep), ep, ep
movhi hi(__gp), r0, gp
movea lo(__gp), gp, gp
movhi hi(_edata), r0, r6
movea lo(_edata), r6, r6
movhi hi(_end), r0, r7
movea lo(_end), r7, r7
.L0:
st.b r0, 0[r6]
addi 1, r6, r6
cmp r7, r6
bl .L0
.L1:
jarl ___main, r31
addi -16, sp, sp
mov 0, r6
mov 0, r7
mov 0, r8
jarl _main, r31
mov r10, r6
jarl _exit, r31
# endif
.section .stack
_stack: .long 1
.section .data
.global ___dso_handle
.weak ___dso_handle
___dso_handle:
.long 0