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[/] [or1k/] [trunk/] [newlib/] [libgloss/] [m32r/] [crt0.S] - Diff between revs 39 and 56

Rev 39	Rev 56
Line 7...	Line 7...
`ldi fp, #0`	`ldi fp, #0`

`# Clear the BSS. Do it in two parts for efficiency: longwords first`	`# Clear the BSS. Do it in two parts for efficiency: longwords first`
`# for most of it, then the remaining 0 to 3 bytes.`	`# for most of it, then the remaining 0 to 3 bytes.`

`ld24 r2, __bss_start ; R2 = start of BSS`	`seth r2, #shigh(__bss_start)`
`ld24 r3, _end ; R3 = end of BSS + 1`	`add3 r2, r2, #low(__bss_start); R2 = start of BSS`
	`seth r3, #shigh(_end)`
	`add3 r3, r3, #low(_end) ; R3 = end of BSS + 1`

`sub r3, r2 ; R3 = BSS size in bytes`	`sub r3, r2 ; R3 = BSS size in bytes`
`mv r4, r3`	`mv r4, r3`
`srli r4, #2 ; R4 = BSS size in longwords (rounded down)`	`srli r4, #2 ; R4 = BSS size in longwords (rounded down)`
`ldi r1, #0 ; clear R1 for longword store`	`ldi r1, #0 ; clear R1 for longword store`
`addi r2, #-4 ; account for pre-inc store`	`addi r2, #-4 ; account for pre-inc store`