mirror of
https://github.com/autc04/Retro68.git
synced 2024-11-05 04:06:45 +00:00
100 lines
1.4 KiB
ArmAsm
100 lines
1.4 KiB
ArmAsm
# setjmp/longjmp for mt.
|
|
#
|
|
# The jmpbuf looks like this:
|
|
#
|
|
# Register jmpbuf offset
|
|
# R0 --- --
|
|
# R1 0x4 4
|
|
# R2 0x8 8
|
|
# R3 0xc 12
|
|
# R4 0x10 16
|
|
# R5 0x14 20
|
|
# R6 0x18 24
|
|
# R7 0x1c 28
|
|
# R8 0x20 32
|
|
# R9 ---- --
|
|
# R10 ---- --
|
|
# R11 0x2c 44
|
|
# R12 0x30 48
|
|
# R13 0x34 52
|
|
# R14 0x38 56
|
|
# R15 0x3c 60
|
|
#
|
|
# R1 contains the pointer to jmpbuf
|
|
.text
|
|
.global setjmp
|
|
.type setjmp ,@function
|
|
setjmp:
|
|
|
|
stw r1, r1, #4
|
|
or r0, r0, r0
|
|
stw r2, r1, #8
|
|
or r0, r0, r0
|
|
stw r3, r1, #12
|
|
or r0, r0, r0
|
|
stw r4, r1, #16
|
|
or r0, r0, r0
|
|
stw r5, r1, #20
|
|
or r0, r0, r0
|
|
stw r6, r1, #24
|
|
or r0, r0, r0
|
|
stw r7, r1, #28
|
|
or r0, r0, r0
|
|
stw r8, r1, #32
|
|
or r0, r0, r0
|
|
stw r11, r1, #44
|
|
or r0, r0, r0
|
|
stw r12, r1, #48
|
|
or r0, r0, r0
|
|
stw r13, r1, #52
|
|
or r0, r0, r0
|
|
stw r14, r1, #56
|
|
or r0, r0, r0
|
|
stw r15, r1, #60
|
|
|
|
jal r0, r14
|
|
addi r11, r0, #0
|
|
.Lend1:
|
|
.size setjmp,.Lend1-setjmp
|
|
|
|
.global longjmp
|
|
.type longjmp,@function
|
|
longjmp:
|
|
or r9, r1, r1
|
|
or r11, r2, r2
|
|
ldw r1, r1, #4
|
|
or r0, r0, r0
|
|
ldw r2, r1, #8
|
|
or r0, r0, r0
|
|
ldw r3, r1, #12
|
|
or r0, r0, r0
|
|
ldw r4, r1, #16
|
|
or r0, r0, r0
|
|
ldw r5, r1, #20
|
|
or r0, r0, r0
|
|
ldw r6, r1, #24
|
|
or r0, r0, r0
|
|
ldw r7, r1, #28
|
|
or r0, r0, r0
|
|
ldw r8, r1, #32
|
|
or r0, r0, r0
|
|
|
|
|
|
ldw r12, r1, #48
|
|
or r0, r0, r0
|
|
ldw r13, r1, #52
|
|
or r0, r0, r0
|
|
ldw r14, r1, #56
|
|
or r0, r0, r0
|
|
ldw r15, r1, #60
|
|
|
|
brne r0, r11, .L01
|
|
or r0, r0, r0
|
|
|
|
addi r11, r0, #1
|
|
.L01:
|
|
jal r0, r14
|
|
or r0, r0, r0
|
|
.Lend2:
|
|
.size longjmp,.Lend2-longjmp2
|