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/##
Copyright 2021-2022 Kyle Gunger
This file is licensed under the CDDL 1.0 (the License)
and may only be used in accordance with the License.
You should have received a copy of the License with this
software/source code. If you did not, a copy can be found
at the following URL:
https://opensource.org/licenses/CDDL-1.0
THIS SOFTWARE/SOURCE CODE IS PROVIDED "AS IS" WITH NO
WARRANTY, GUARANTEE, OR CLAIM OF FITNESS FOR ANY PURPOSE
EXPRESS OR IMPLIED
#/
/; construct_statement({}charp base, {}{}charp args) [{}charp]
/; loop (int i = 0; i < len args) [i++]
;add_strings(~base, ~(args{i}))
/; if (i < len args - 1)
;base.append(',')
;base.append(' ')
;/
;/
;base.append('\n')
;return base
;/
/; literal_num ({}charp num) [{}charp]
;{}charp out = "$"
;add_strings(~out, ~num)
;return out
;/
/; add_asm ({}charp from, to) [{}charp]
;return construct_statement("\tadd ", {from, to})
;/
/; sub_asm({}charp from, to) [{}charp]
;return construct_statement("\tsub ", {from, to})
;/
/; push_asm ({}charp reg) [{}charp]
;return construct_statement("\tpush ", {reg})
;/
/; pop_asm ({}charp reg) [{}charp]
;return construct_statement("\tpop ", {reg})
;/
/; cmp_asm ({}charp a, b) [{}charp]
;return construct_statement("\tcmp ", {a, b})
;/
/; jmp_asm ({}charp pos) [{}charp]
;return construct_statement("\tjmp ", {pos})
;/
/; mem_offset ({}charp pos, offset, scale) [{}charp]
;{}charp tmp = construct_statement("(", {pos, offset, scale})
;tmp{len tmp - 1} = ')'
;return tmp
;/
/; header_guard (~{}charp csec) [{}charp]
;{}charp out = "", tmp = ""
;tmp = push_asm("%r8")
;add_strings(~out, ~tmp)
;tmp = push_asm("%r9")
;add_strings(~out, ~tmp)
;tmp = push_asm("%r10")
;add_strings(~out, ~tmp)
;tmp = push_asm("%r11")
;add_strings(~out, ~tmp)
;tmp = push_asm("%r12")
;add_strings(~out, ~tmp)
;tmp = push_asm("%r13")
;add_strings(~out, ~tmp)
;tmp = push_asm("%r14")
;add_strings(~out, ~tmp)
;tmp = push_asm("%r15")
;add_strings(~out, ~tmp)
;add_strings(csec, ~out)
;/
/; tail_guard (~{}charp csec) [{}charp]
;{}charp out = "", tmp = ""
;tmp = pop_asm("%r15")
;add_strings(~out, ~tmp)
;tmp = pop_asm("%r14")
;add_strings(~out, ~tmp)
;tmp = pop_asm("%r13")
;add_strings(~out, ~tmp)
;tmp = pop_asm("%r12")
;add_strings(~out, ~tmp)
;tmp = pop_asm("%r11")
;add_strings(~out, ~tmp)
;tmp = pop_asm("%r10")
;add_strings(~out, ~tmp)
;tmp = pop_asm("%r9")
;add_strings(~out, ~tmp)
;tmp = pop_asm("%r8")
;add_strings(~out, ~tmp)
;add_strings(csec, ~out)
;/
/# Accepted common names:
# - ax
# - bx
# - cx
# - dx
# - sp
# - bp
# - si
# - di
# - 8-15
#/
/; get_reg (uint size, {}charp common) [{}charp]
;{}charp out = "%"
/; if (string_equate(common, "ax") || string_equate(common, "bx") || string_equate(common, "cx") || string_equate(common, "dx"))
/; if (size == 1)
;common{1} = 'l'
;; else if (size == 4)
;out.append('e')
;; else if (size == 8)
;out.append('r')
;/
;add_strings(~out, ~common)
;; else if (string_equate(common, "sp") || string_equate(common, "bp") || string_equate(common, "si") || string_equate(common, "di"))
/; if (size == 1)
;common.append('l')
;; else if (size == 4)
;out.append('e')
;; else if (size == 8)
;out.append('r')
;/
;add_strings(~out, ~common)
;; else
;{}charp out = "r"
;add_strings(~out, ~common)
/; if (size == 1)
;out.append('b')
;; else if (size == 2)
;out.append('w')
;; else if (size == 4)
;out.append('d')
;/
;return out
;/
;return out
;/
/; make_label ({}charp func_name, func_place, ~{}charp csec)
;func_name.append("_")
;add_strings(~func_name, ~func_place)
;add_strings(csec, ~func_name)
;csec`.append(':')
;csec`.append('\n')
;/
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