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60 lines
1.7 KiB
ArmAsm
60 lines
1.7 KiB
ArmAsm
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# define call_push(x) \
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lda $16, 0(x); /* copy x to first argument register */ \
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jsr $26, GC_push_one; /* call GC_push_one, ret addr in $26 */ \
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ldgp $gp, 0($26) /* restore $gp register from $ra */
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.text
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.align 4
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.globl GC_push_regs
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.ent GC_push_regs 2
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GC_push_regs:
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ldgp $gp, 0($27) # set gp from the procedure value reg
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lda $sp, -32($sp) # make stack frame
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stq $26, 8($sp) # save return address
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.mask 0x04000000, -8
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.frame $sp, 16, $26, 0
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# call_push($0) # expression eval and int func result
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# call_push($1) # temp regs - not preserved cross calls
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# call_push($2)
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# call_push($3)
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# call_push($4)
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# call_push($5)
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# call_push($6)
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# call_push($7)
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# call_push($8)
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call_push($9) # Saved regs
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call_push($10)
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call_push($11)
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call_push($12)
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call_push($13)
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call_push($14)
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call_push($15) # frame ptr or saved reg
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# call_push($16) # argument regs - not preserved cross calls
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# call_push($17)
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# call_push($18)
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# call_push($19)
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# call_push($20)
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# call_push($21)
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# call_push($22) # temp regs - not preserved cross calls
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# call_push($23)
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# call_push($24)
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# call_push($25)
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# call_push($26) # return address - expression eval
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# call_push($27) # procedure value or temporary reg
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# call_push($28) # assembler temp - not presrved
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call_push($29) # Global Pointer
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# call_push($30) # Stack Pointer
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ldq $26, 8($sp) # restore return address
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lda $sp, 32($sp) # pop stack frame
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ret $31, ($26), 1 # return ($31 == hardwired zero)
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.end GC_push_regs
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