URL https://opencores.org/ocsvn/or1k/or1k/trunk

Subversion Repositories or1k

[/] [or1k/] [trunk/] [newlib-1.10.0/] [newlib/] [libc/] [machine/] [fr30/] [setjmp.S] - Diff between revs 1007 and 1765

Rev 1007	Rev 1765
`# setjmp/longjmp for FR30. The jmpbuf looks like this:`	`# setjmp/longjmp for FR30. The jmpbuf looks like this:`
`#`	`#`
`# Register jmpbuf offset`	`# Register jmpbuf offset`
`# R8 0x00`	`# R8 0x00`
`# R9 0x04`	`# R9 0x04`
`# R10 0x08`	`# R10 0x08`
`# R11 0x0c`	`# R11 0x0c`
`# R12 0x10`	`# R12 0x10`
`# R13 0x14`	`# R13 0x14`
`# R14 (FP) 0x18`	`# R14 (FP) 0x18`
`# R15 (SP) 0x1c`	`# R15 (SP) 0x1c`
`# RP 0x20`	`# RP 0x20`

`.macro save reg`	`.macro save reg`
`st \reg,@r4`	`st \reg,@r4`
`add #4,r4`	`add #4,r4`
`.endm`	`.endm`

`.macro restore reg`	`.macro restore reg`
`ld @r4,\reg`	`ld @r4,\reg`
`add #4,r4`	`add #4,r4`
`.endm`	`.endm`


`.text`	`.text`
`.global setjmp`	`.global setjmp`
`setjmp:`	`setjmp:`
`save r8`	`save r8`
`save r9`	`save r9`
`save r10`	`save r10`
`save r11`	`save r11`
`save r12`	`save r12`
`save r13`	`save r13`
`save r14`	`save r14`
`save r15`	`save r15`
`mov RP,r5`	`mov RP,r5`
`st r5,@r4`	`st r5,@r4`

`# Return 0 to caller.`	`# Return 0 to caller.`
`ldi:8 #0,r4`	`ldi:8 #0,r4`
`ret`	`ret`

`.global longjmp`	`.global longjmp`
`longjmp:`	`longjmp:`
`restore r8`	`restore r8`
`restore r9`	`restore r9`
`restore r10`	`restore r10`
`restore r11`	`restore r11`
`restore r12`	`restore r12`
`restore r13`	`restore r13`
`restore r14`	`restore r14`
`restore r15`	`restore r15`
`ld @r4,r4`	`ld @r4,r4`
`mov r4,RP`	`mov r4,RP`

`# If caller attempted to return 0, return 1 instead.`	`# If caller attempted to return 0, return 1 instead.`

`mov r5,r4`	`mov r5,r4`
`or r4,r4`	`or r4,r4`
`bne 1f`	`bne 1f`
`ldi:8 #1,r4`	`ldi:8 #1,r4`
`1:`	`1:`
`ret`	`ret`