syscall.S « sim « tb - conspiracion - Linux-capable SoC platform with a custom ARMv4 quad-core SMP CPU, coherent caches, and a 3D graphics accelerator. Synthesizes for Terasic DE-series FPGA boards. Simulated with Verilator.

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path: root/tb/sim/syscall.S

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.global reset
reset:
	# Switch to user mode
	mov  r0, lr
	mrs  r1, cpsr
	bic  r1, r1, #0b1111
	msr  cpsr_fxc, r1
	mov  lr, r0

	mov  r0, #123
	swi  #0
	mov  pc, lr

.global swi
swi:
	add  r0, r0, #1
	movs pc, r14