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[/] [or1k/] [trunk/] [newlib/] [libgloss/] [m32r/] [trap0.S] - Diff between revs 56 and 57

Rev 56	Rev 57
`; Trap 0 handler (syscall interface).`	`; Trap 0 handler (syscall interface).`
`;`	`;`
`; The trap handler returns the result in r0 and the error code (errno value)`	`; The trap handler returns the result in r0 and the error code (errno value)`
`; in r2. r1 is reserved in case an 8 byte quantity ever needs to be`	`; in r2. r1 is reserved in case an 8 byte quantity ever needs to be`
`; returned in registers.`	`; returned in registers.`

`.text`	`.text`
`.global __trap0`	`.global __trap0`
`__trap0:`	`__trap0:`
`trap #0 ; trap 0 returns result in r0, error code in r2`	`trap #0 ; trap 0 returns result in r0, error code in r2`
`cmpui r2,#1 ; is error code zero?`	`cmpui r2,#1 ; is error code zero?`
`bc .Lret ; yes, skip setting errno`	`bc .Lret ; yes, skip setting errno`
`ld r4,@(sp) ; no, set errno`	`ld r4,@(sp) ; no, set errno`
`st r2,@r4`	`st r2,@r4`
`.Lret:`	`.Lret:`
`jmp lr ; return to caller`	`jmp lr ; return to caller`