EnvironmentLoader/source/syscalls.s

27 lines
430 B
ArmAsm
Raw Permalink Normal View History

2021-12-25 20:14:56 +01:00
.global SCKernelCopyData
SCKernelCopyData:
// Disable data address translation
mfmsr %r6
li %r7, 0x10
andc %r6, %r6, %r7
mtmsr %r6
// Copy data
addi %r3, %r3, -1
addi %r4, %r4, -1
mtctr %r5
SCKernelCopyData_loop:
lbzu %r5, 1(%r4)
stbu %r5, 1(%r3)
bdnz SCKernelCopyData_loop
// Enable data address translation
ori %r6, %r6, 0x10
mtmsr %r6
blr
.global SC_KernelCopyData
SC_KernelCopyData:
li %r0, 0x2500
sc
blr