m68k/ifpsp060/os.S

57 | Each IO routine checks to see if the memory write/read is to/from user
60 | for user mode applications.
71 | working in user space
80 |	a1 - user destination address
82 |	0x4(%a6),bit5 - 1 = supervisor mode, 0 = user mode
110 |	a0 - user source address
113 |	0x4(%a6),bit5 - 1 = supervisor mode, 0 = user mode
140 | Read a data byte from user memory.
143 |	a0 - user source address
144 |	0x4(%a6),bit5 - 1 = supervisor mode, 0 = user mode
155 dmrbuae:movs.b		(%a0),%d0		| fetch user byte
163 | Read a data word from user memory.
166 |	a0 - user source address
167 |	0x4(%a6),bit5 - 1 = supervisor mode, 0 = user mode
174 | Read an instruction word from user memory.
177 |	a0 - user source address
178 |	0x4(%a6),bit5 - 1 = supervisor mode, 0 = user mode
191 dmrwuae:movs.w		(%a0), %d0		| fetch user word
202 |	a0 - user source address
203 |	0x4(%a6),bit5 - 1 = supervisor mode, 0 = user mode
210 | Read an instruction longword from user memory.
213 |	a0 - user source address
214 |	0x4(%a6),bit5 - 1 = supervisor mode, 0 = user mode
226 dmrluae:movs.l		(%a0),%d0		| fetch user longword
234 | Write a data byte to user memory.
237 |	a0 - user destination address
239 |	0x4(%a6),bit5 - 1 = supervisor mode, 0 = user mode
248 dmwbuae:movs.b		%d0,(%a0)		| store user byte
256 | Write a data word to user memory.
259 |	a0 - user destination address
261 |	0x4(%a6),bit5 - 1 = supervisor mode, 0 = user mode
271 dmwwuae:movs.w		%d0,(%a0)		| store user word
280 | Write a data longword to user memory.
283 |	a0 - user destination address
285 |	0x4(%a6),bit5 - 1 = supervisor mode, 0 = user mode
294 dmwluae:movs.l		%d0,(%a0)		| store user longword