713 lines
20 KiB
NASM
713 lines
20 KiB
NASM
; Hello Files!
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BITS 64 ; Explicitly specify 64-bit mode
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DEFAULT REL ; Use RIP-relative addressing by default
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%define BUILD_DEBUG 1
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;region DSL
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%define marg
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%define rcounter_32 ecx
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%define rdata_32 edx
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%define r8_32 r8d
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%define r9_32 r9d
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%define raccumulator rax
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%define rbase rbx
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%define rcounter rcx
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%define rdata rdx
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%define rdst_id rdi
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%define rsrc_id rsi
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%define rstack_ptr rsp
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%define rstack_base_ptr rbp
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%define false 0
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%define true 1
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%define true_overflow 2
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;endregion DSL
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;region Registers
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; Wipes all 64-bit general-purpose registers except for the stack pointer (RSP).
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; Zeroing RSP would corrupt the stack and crash the program.
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; Zeroing RBP will break the stack frame chain used by debuggers.
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%macro wipe_gprs 0
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xor rax, rax
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xor rbx, rbx
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xor rcx, rcx
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xor rdx, rdx
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xor rsi, rsi
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xor rdi, rdi
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; xor rbp, rbp
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xor r8, r8
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xor r9, r9
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xor r10, r10
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xor r11, r11
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xor r12, r12
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xor r13, r13
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xor r14, r14
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xor r15, r15
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%endmacro
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; Resets the Floating-Point Unit (FPU), which also clears all MMX registers
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; (MM0-MM7) and FPU stack registers (ST0-ST7).
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%macro wipe_fpu_mmxs 0
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finit
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%endmacro
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; Wipes the 128-bit XMM registers. Requires a CPU with at least SSE.
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%macro wipe_xmms 0
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vxorps xmm0, xmm0, xmm0
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vxorps xmm1, xmm1, xmm1
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vxorps xmm2, xmm2, xmm2
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vxorps xmm3, xmm3, xmm3
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vxorps xmm4, xmm4, xmm4
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vxorps xmm5, xmm5, xmm5
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vxorps xmm6, xmm6, xmm6
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vxorps xmm7, xmm7, xmm7
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vxorps xmm8, xmm8, xmm8
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vxorps xmm9, xmm9, xmm9
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vxorps xmm10, xmm10, xmm10
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vxorps xmm11, xmm11, xmm11
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vxorps xmm12, xmm12, xmm12
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vxorps xmm13, xmm13, xmm13
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vxorps xmm14, xmm14, xmm14
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vxorps xmm15, xmm15, xmm15
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%endmacro
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; =============================================================================
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; AVX Registers (YMM0-YMM15)
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; =============================================================================
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; Wipes the 256-bit YMM registers. Requires a CPU with AVX support.
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; This also wipes the lower 128 bits (the XMM registers), so you don't
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; need to call WIPE_XMM_REGS if you call this one.
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%macro wipe_ymms 0
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vzeroupper ; Clears upper 128 bits of all YMM registers
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vxorps ymm0, ymm0, ymm0 ; Clears the full YMM0 (including lower XMM0)
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vxorps ymm1, ymm1, ymm1
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vxorps ymm2, ymm2, ymm2
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vxorps ymm3, ymm3, ymm3
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vxorps ymm4, ymm4, ymm4
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vxorps ymm5, ymm5, ymm5
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vxorps ymm6, ymm6, ymm6
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vxorps ymm7, ymm7, ymm7
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vxorps ymm8, ymm8, ymm8
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vxorps ymm9, ymm9, ymm9
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vxorps ymm10, ymm10, ymm10
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vxorps ymm11, ymm11, ymm11
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vxorps ymm12, ymm12, ymm12
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vxorps ymm13, ymm13, ymm13
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vxorps ymm14, ymm14, ymm14
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vxorps ymm15, ymm15, ymm15
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%endmacro
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; =============================================================================
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; AVX-512 Registers (ZMM0-ZMM31 and K0-K7)
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; =============================================================================
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; Wipes the 512-bit ZMM registers and the 8 mask registers (k0-k7).
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; Requires a CPU with AVX-512F support. This is the most comprehensive
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; vector register wipe and makes WIPE_XMM_REGS and WIPE_YMM_REGS redundant.
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%macro wipe_avx512s 0
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; Wipe Mask Registers (k0-k7)
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kxorb k0, k0, k0
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kxorb k1, k1, k1
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kxorb k2, k2, k2
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kxorb k3, k3, k3
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kxorb k4, k4, k4
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kxorb k5, k5, k5
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kxorb k6, k6, k6
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kxorb k7, k7, k7
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; Wipe ZMM registers (zmm0-zmm31)
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vpxord zmm0, zmm0, zmm0
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vpxord zmm1, zmm1, zmm1
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vpxord zmm2, zmm2, zmm2
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vpxord zmm3, zmm3, zmm3
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vpxord zmm4, zmm4, zmm4
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vpxord zmm5, zmm5, zmm5
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vpxord zmm6, zmm6, zmm6
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vpxord zmm7, zmm7, zmm7
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vpxord zmm8, zmm8, zmm8
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vpxord zmm9, zmm9, zmm9
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vpxord zmm10, zmm10, zmm10
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vpxord zmm11, zmm11, zmm11
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vpxord zmm12, zmm12, zmm12
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vpxord zmm13, zmm13, zmm13
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vpxord zmm14, zmm14, zmm14
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vpxord zmm15, zmm15, zmm15
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vpxord zmm16, zmm16, zmm16
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vpxord zmm17, zmm17, zmm17
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vpxord zmm18, zmm18, zmm18
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vpxord zmm19, zmm19, zmm19
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vpxord zmm20, zmm20, zmm20
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vpxord zmm21, zmm21, zmm21
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vpxord zmm22, zmm22, zmm22
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vpxord zmm23, zmm23, zmm23
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vpxord zmm24, zmm24, zmm24
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vpxord zmm25, zmm25, zmm25
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vpxord zmm26, zmm26, zmm26
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vpxord zmm27, zmm27, zmm27
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vpxord zmm28, zmm28, zmm28
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vpxord zmm29, zmm29, zmm29
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vpxord zmm30, zmm30, zmm30
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vpxord zmm31, zmm31, zmm31
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%endmacro
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;endregion Registers
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;region Debug
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%define debug_trap 3
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%ifidn BUILD_DEBUG, 1
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%macro assert_cmp 3
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cmp %2, %3
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%1 %%.passed
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int debug_trap
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%%.passed:
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%endmacro
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%macro assert_not_null 1
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cmp %1, nullptr
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jnz %%.passed
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int debug_trap
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%%.passed: ; macro-unique-prefix (%%) .passed is the label name
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%endmacro
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%define dbg_wipe_gprs wipe_gprs
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%define dbg_wipe_fpu_mmxs wipe_fpu_mmxs
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%define dbg_wipe_xmms wipe_xmms
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%define dbg_wipe_ymms wipe_ymms
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%define dbg_wipe_avx512s wipe_avx512s
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%else
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%macro assert_cmp 3
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%cmp %2, %3
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%endmacro
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%macro assert_not_null 1
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%endmacro
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%macro slice_assert 1
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%endmacro
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%define dbg_wipe_gprs
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%define dbg_wipe_fpu_mmxs
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%define dbg_wipe_xmms
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%define dbg_wipe_ymms
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%define dbg_wipe_avx512s
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%endif ; BUILD_DEBUG
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;endregion Debug
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;region Math
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; returns: raccumulator = U64
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; Usage
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%macro min_S64 2
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mov raccumulator, %1
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cmp raccumulator, %2
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cmovg raccumulator, %2 ; ConditionalMoveIfGreater
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%endmacro min_S64
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;endregion Math
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;region Memory
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%define nullptr 0
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%define kilo 1024
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; Usage: def_array <name: %1> <size: %2>
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%macro def_farray 2+
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struc %1
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.ptr: resb %2
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endstruc
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%endmacro
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def_farray Mem_128k, 128 * kilo
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;region memory_copy
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; dst = rdst_id = [Byte]
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; src = rsrc_id = [Byte]
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; rcounter = U64
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section .text
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memory_copy:
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cld
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rep movsb ; REPEAT MoveStringByte
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; 1. Copies the byte from [RSI] to [RDI].
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; 2. Increments RSI and RDI (because of CLD).
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; 3. Decrements RCX.
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; 4. Repeats until RCX is 0.
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ret
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;endregion memory_copy
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struc Slice
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.ptr: resq 1
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.len: resq 1
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endstruc
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; Usage: def_Slice %1: <slice_label>
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%macro def_Slice 1
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struc Slice_ %+ %1
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.ptr: resq 1
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.len: resq 1
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endstruc
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%endmacro
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def_Slice Byte
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; Usage: stack_slice %1: <type>, %2 <slice id>, %3 <stack_offset>
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%macro stack_slice 2
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call_frame_alloc %1 %+ _size
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%endmacro
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; Usage: slice_assert %1: Slice_<type> { .ptr = Slice.ptr, .len = Slice.len }
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%macro slice_assert 1
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%ifidn BUILD_DEBUG, 1
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cmp qword [%1 + Slice.ptr], nullptr
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jnz %%.ptr_passed
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int debug_trap
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%%.ptr_passed: ; macro-unique-prefix (%%) .passed is the label name
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cmp qword [%1 + Slice.len], 0
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jg %%.len_passed
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int debug_trap
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%%.len_passed:
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%endif
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%endmacro
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; Usage slice_assert %1: ptr, %2: len
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%macro slice_assert 2
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%ifidn BUILD_DEBUG, 1
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cmp %1, nullptr
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jnz %%.ptr_passed
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int debug_trap
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%%.ptr_passed:
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cmp %2, 0
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jg %%.len_passed
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int debug_trap
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%%.len_passed:
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%endif
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%endmacro
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; Usage: cf (call-frame begin)
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; Establishes a new stack frame, saving the caller's frame.
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; This is a standard function prologue.
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%macro cf 0
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push rstack_base_ptr ; Save the caller's frame pointer (RBP)
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mov rstack_base_ptr, rstack_ptr ; Set our new frame pointer to the current stack position
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%endmacro
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; Usage: cf_alloc <size_or_symbol> (call-frame allocate)
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%macro cf_alloc 1
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sub rstack_ptr, %1 ; Allocate space by subtracting from the stack pointer (RSP)
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%endmacro
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; Usage: cf_commit (call-frame commit)
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; Finalizes the stack frame by ensuring it is correctly aligned for a function call.
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%macro cf_commit 0
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; The Windows x64 ABI requires the stack pointer (RSP) to be 16-byte
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; aligned immediately before a CALL instruction. This command ensures alignment
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; by clearing the last 4 bits of RSP, rounding it down to the nearest multiple of 16.
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and rstack_ptr, ~15
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%endmacro
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; Usage: cf_end (call-frame end)
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; Tears down the stack frame, deallocating all memory and restoring the caller's frame.
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%macro cf_end 0
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mov rstack_ptr, rstack_base_ptr ; Deallocate the entire frame at once by resetting RSP to the saved RBP
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pop rstack_base_ptr ; Restore the caller's frame pointer
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%endmacro
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; Usage: cf_ctbl <ctbl struc>
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; Meant to only be used with call-table structs: <Symbol>_ctbl naming convention
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%macro cf_ctbl 1
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push rstack_base_ptr
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mov rstack_base_ptr, rstack_ptr
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sub rstack_ptr, %1 %+ _ctbl_size
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and rstack_ptr, ~15
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%endmacro
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; Usage stac_alloc %1: <stack_offset>
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%macro stack_push 1
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push rstack_base_ptr
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mov rstack_base_ptr, rstack_ptr
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sub rstack_ptr, %1
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%endmacro
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%macro stack_pop 0
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mov rstack_ptr, rstack_base_ptr
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pop rstack_base_ptr
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%endmacro
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;endregion Memory
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;region Allocator Interface
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; TODO(Ed): Make it!
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;endregion Allocator Interface
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;region OS
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; TODO(Ed): Make it!
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;endregion OS
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;region FArena
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; TODO(Ed): Make it!
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;endregion FArena
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;region VArena
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; TODO(Ed): Make it!
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;endregion VArena
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;region Arena
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; TODO(Ed): Make it!
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;endregion Arena
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;region Strings
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struc Str8
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.ptr: resq 1
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.len: resq 1
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endstruc
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def_Slice Slice_Str8
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; Usage: lit %1: <slice_label>, %2: <utf-8 literal>
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%macro lit 2
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%%str_data: db %2
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%%str_len: equ $ - %%str_data
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%1:
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istruc Str8
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at Str8.ptr, dq %%str_data
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at Str8.len, dq %%str_len
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iend
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%endmacro
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section .data
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lit path_hello_files_asm, `./code/asm/hello_files.asm`
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;endregion Strings
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;region String Ops
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;region str8_to_cstr_capped
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%push proc_scope
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; result: rcounter = [UTF8]
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; content: Str8 = { .ptr = rdata, .len = r8 }
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; mem: r9 = [Slice_Byte]
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%define result rcounter
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%define content_ptr rdata
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%define content_len r8
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%define mem r9
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section .text
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str8_to_cstr_capped:
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push raccumulator
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push rdst_id
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push rsrc_id
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sub rstack_ptr, 8
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; U64 raccumulator = min(content.len, mem.len - 1);
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mov rsrc_id, qword [mem + Slice_Byte.len]
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sub rsrc_id, 1
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min_S64 content_len, rsrc_id ; raccumulator has result
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; memory_copy(mem.ptr, content.ptr, copy_len);
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mov rdst_id, qword [mem + Slice_Byte.ptr]
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mov rsrc_id, content_ptr
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mov rcounter, raccumulator
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call memory_copy
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; mem.ptr[copy_len] = '\0';
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mov rdst_id, qword [mem + Slice_Byte.ptr]
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mov byte [rdst_id + raccumulator], 0
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; return cast(char*, mem.ptr);
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mov result, qword [mem + Str8.ptr]
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add rstack_ptr, 8
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pop rsrc_id
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pop rdst_id
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pop raccumulator
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ret
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%pop proc_scope
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;endregion str8_to_cstr_capped
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;endregion String Ops
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;region WinAPI
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%define MS_INVALID_HANDLE_VALUE -1
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%define MS_FILE_ATTRIBUTE_NORMAL 0x00000080
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%define MS_FILE_SHARE_READ 0x00000001
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%define MS_GENERIC_READ 0x80000000
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%define MS_OPEN_EXISTING 3
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%define MS_STD_OUTPUT_HANDLE -11
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%define wapi_shadow_space 32
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; kernel32.lib
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; Process API
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extern CloseHandle
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extern ExitProcess
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extern GetLastError
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; File API
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extern CreateFileA
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extern GetFileSizeEx
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extern ReadFile
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extern WriteFileA
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; Console IO
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extern GetStdHandle
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extern WriteConsoleA
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struc wapi_ctbl
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.shadow: resq 4 ; 32 bytes for RCX, RDX, R8, R9
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endstruc
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; rcx: hObject
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struc CloseHandle_ctbl
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.shadow: resq 4
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endstruc
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; rcx: uExitCode
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struc ExitProcess_ctbl
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.shadow: resq 4
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endstruc
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; no args
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struc GetLastError_ctbl
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.shadow: resq 4
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endstruc
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; rcx: lpFileName
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; rdx: dwDesiredAccess
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; r8: dwShareMode
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; r9: lpSecurityAttributes
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; s1: dwCreationDisposition
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; s2: dwFlagsAndAttributes
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; s3: hTemplateFile
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; NOTE: Even though the first two are DWORDs, on the stack they each
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; occupy a full 8-byte slot in the x64 ABI.
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struc CreateFileA_ctbl
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.shadow: resq 4
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.dwCreationDisposition: resq 1
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.dwFlagsAndAttributes: resq 1
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.hTemplateFile: resq 1
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endstruc
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; rcx: hFile
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; rdx: lpFileSize
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struc GetFileSizeEx_ctbl
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.shadow: resq 4
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endstruc
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; rcx: hFile
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; rdx: lpBuffer
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; r8: nNumberOfBytesToRead
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; r9: lpNumberOfBytesRead
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; s1: lpOverlapped
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struc ReadFile_ctbl
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.shadow: resq 4
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.lpOverlapped: resq 1
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endstruc
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; rcx: hFile
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; rdx: lpBuffer
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; r8: nNumberOfBytesToWrite
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; r9: lpNumberOfBytesWritten
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; s1: lpOverlapped
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struc WriteFileA_ctbl
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.shadow: resq 4
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.lpOverlapped: resq 1
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endstruc
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struc FileOpInfo
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.content: resb Slice_Byte_size
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endstruc
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; rcx: nStdHandle
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struc GetStdHandle_ctbl
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.shadow: resq 4
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endstruc
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; rcx: hConsoleOutput
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; rdx: lpBuffer
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; r8: nNumberOfCharsToWrite
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; r9: lpNumberOfCharsWritten
|
|
; s1: lpReserved
|
|
struc WriteConsoleA_ctbl
|
|
.shadow: resq 4
|
|
.lpReserved: resq 1
|
|
.lpNumberOfCharsWritten: resq 1
|
|
endstruc
|
|
|
|
section .data
|
|
std_out_hndl dq 0
|
|
;endregion WinAPI
|
|
|
|
;region file_read_contents
|
|
%push proc_scope
|
|
; Reg allocation:
|
|
; result: rcounter = [FileOpInfo]
|
|
; path: Slice_Str8 = { .ptr = rdata, .len = r8 }
|
|
; backing: r9 = [Slice_Byte]
|
|
%define result rcounter
|
|
%define path_ptr rdata
|
|
%define path_len r8
|
|
%define backing r9
|
|
|
|
section .text
|
|
file_read_contents:
|
|
; validation
|
|
assert_not_null result
|
|
slice_assert backing
|
|
slice_assert path_ptr, path_len
|
|
|
|
; save registers
|
|
push rbase ; id_file
|
|
push r12 ; result
|
|
push r13 ; backing
|
|
push r14 ; file_size
|
|
mov r12, result
|
|
mov r13, backing
|
|
%define result r12
|
|
%define backing r13
|
|
|
|
; rcounter = str8_to_cstr_capped(path, slice_fmem(scratch));
|
|
; We're using backing to store the cstr temporarily until ReadFile.
|
|
call str8_to_cstr_capped ; (rdata, r8, r9)
|
|
; path_cstr = rcounter; path_len has will be discarded in the CreateFileA call
|
|
%define path_cstr rcounter
|
|
|
|
cf_ctbl CreateFileA ; call-frame CreateFileA {
|
|
; rcounter = path_cstr
|
|
mov rdata_32, MS_GENERIC_READ ; dwDesiredAccess = MS_GENERIC_READ
|
|
mov r8_32, MS_FILE_SHARE_READ ; dwShareMode = MS_FILE_SHARE_READ
|
|
xor r9, r9 ; lpSecurityAttributes = nullptr
|
|
mov qword [rstack_ptr + CreateFileA_ctbl.dwCreationDisposition], MS_OPEN_EXISTING ; stack.ptr[.dwCreationDisposition] = MS_OPEN_EXISTING
|
|
mov qword [rstack_ptr + CreateFileA_ctbl.dwFlagsAndAttributes ], MS_FILE_ATTRIBUTE_NORMAL ; stack.ptr[.dwFlagsAndAttributes ] = MS_FILE_ATTRIBUTE_NORMAL
|
|
mov qword [rstack_ptr + CreateFileA_ctbl.hTemplateFile ], nullptr ; stack.ptr[.hTemplateFile ] = nullptr
|
|
call CreateFileA ; CreateFileA <- rcounter, rdata, r8, r9, stack
|
|
cf_end ; }
|
|
|
|
; B32 open_failed = raccumulator == MS_INVALID_HANDLE_VALUE
|
|
; if (open_failed) goto %%.error_exit
|
|
assert_cmp jne, raccumulator, MS_INVALID_HANDLE_VALUE
|
|
je .error_exit
|
|
|
|
mov rbase, raccumulator ; rbase = id_file
|
|
%define id_file rbase
|
|
|
|
cf_ctbl GetFileSizeEx ; call-frame GetFileSizeEx {
|
|
mov rcounter, id_file ; rcounter = id_file
|
|
lea rdata, [result + FileOpInfo.content + Slice_Byte.len] ; lpFileSize = result.content.len
|
|
call GetFileSizeEx ; GetFileSizeEx <- rcounter, rdata, stack
|
|
cf_end ; }
|
|
|
|
; B32 not_enough_backing = result.content.len > backing.len
|
|
; if (not_enough_backing) goto .error_close_handle
|
|
mov r8, [backing + Slice_Byte.len] ; r8 = backing.len
|
|
mov r9, [result + FileOpInfo.content + Slice_Byte.len] ; r9 = result.content.len
|
|
assert_cmp jle, r9, r8 ; r9 <= r8
|
|
jg .error_close_handle ; if (flagged greater) goto .error_close_handle
|
|
|
|
; MS_BOOL get_size_failed = ! raccumulator
|
|
; if (get_size_failed) goto .error_exit
|
|
assert_cmp jne, raccumulator, false ; raccumulator != false
|
|
je .error_close_handle ; if (flagged equal) goto .error_close_handle
|
|
|
|
%define file_size r14d
|
|
mov r14d, r9d
|
|
|
|
cf_ctbl ReadFile ; call-frame ReadFile {
|
|
mov rcounter, id_file ; hfile: rcounter = rbase
|
|
mov rdata, [backing + Slice_Byte.ptr ] ; lpBuffer: rdata = backing.ptr
|
|
mov r8_32, file_size ; nNumberOfBytesToRead: r8_32 = file_size
|
|
lea r9, [result + FileOpInfo.content + Slice_Byte.len] ; lpNumberOfBytesRead: r9 = & result.content.len
|
|
mov qword [rstack_ptr + ReadFile_ctbl.lpOverlapped], 0 ; lpOverlapped: nullptr
|
|
call ReadFile ; ReadFile <- rcounter, rata, r8, r9, stack
|
|
cf_end ; }
|
|
|
|
; B32 read_failed = ! read_result
|
|
; if (read_failed) goto .error_exit
|
|
assert_cmp jnz, raccumulator, false
|
|
je .error_exit
|
|
; read_failed |= amount_read != result.content.len
|
|
; if (read_failed) goto .error_exit
|
|
mov r9, qword [result + FileOpInfo.content + Slice_Byte.len]
|
|
assert_cmp je, file_size, r9d
|
|
jne .error_close_handle
|
|
|
|
; CloseHandle(id_file)
|
|
cf_ctbl CloseHandle ; call-frame CloseHandle {
|
|
mov rcounter, id_file ; rcounter = id_file (rbase)
|
|
call CloseHandle ; CloseHandle <- rcounter, stack
|
|
cf_end ; }
|
|
|
|
; reslt.content.ptr = raccumulator
|
|
mov raccumulator, [backing + Slice_Byte.ptr] ; raccumulator = backing.ptr
|
|
mov [result + FileOpInfo.content + Slice_Byte.ptr], raccumulator ; result.content.ptr = raccumulator
|
|
jmp .cleanup ; goto .cleanup
|
|
|
|
.error_close_handle:
|
|
cf_ctbl CloseHandle ; call-frame CloseHandle {
|
|
mov rcounter, rbase ; rcounter = id_file (rbase)
|
|
call CloseHandle ; CloseHandle <- rcounter, stack
|
|
cf_end ; }
|
|
|
|
.error_exit:
|
|
; result = {}
|
|
mov qword [result + FileOpInfo.content + Slice_Byte.ptr], 0
|
|
mov qword [result + FileOpInfo.content + Slice_Byte.len], 0
|
|
|
|
.cleanup:
|
|
pop r14 ; file_size
|
|
pop backing
|
|
pop result
|
|
pop id_file
|
|
; restore registers
|
|
ret
|
|
|
|
section .bss
|
|
; local_persist raw_scratch : [64 * kilo]byte
|
|
file_read_contents.raw_scratch: resb 64 * kilo
|
|
file_read_contents.path_cstr: resq 1
|
|
section .data
|
|
; local_persist scratch = fmem_slice(raw_scratch)
|
|
file_read_contents.scratch:
|
|
istruc Slice_Byte
|
|
at Slice_Byte.ptr, dq file_read_contents.raw_scratch
|
|
at Slice_Byte.len, dq 64 * kilo
|
|
iend
|
|
%pop proc_scope
|
|
;endregion file_read_contents
|
|
|
|
section .text
|
|
global main
|
|
%push proc_scope
|
|
main:
|
|
xor rcx, rcx
|
|
|
|
cf_ctbl GetStdHandle ; call-frame GetStdHandle {
|
|
mov rcounter_32, MS_STD_OUTPUT_HANDLE ; rcounter.32 = MS_STD_OUTPUT_HANDLE
|
|
call GetStdHandle ; GetStdHandle <- rcounter, stack
|
|
cf_end ; }
|
|
|
|
mov [std_out_hndl], raccumulator ; std_out_hndl = raccumulator
|
|
|
|
; TODO(Ed): Setup an arena allocator for backing!
|
|
; TODO(ED): Setup allocator info for an arena
|
|
|
|
%push calling
|
|
cf ; call-frame file_read_contents {
|
|
; Need to pass the allocator info
|
|
; %define backing rsp + Slice_Byte_size
|
|
cf_commit
|
|
mov qword [backing + Slice_Byte.ptr], read_mem ; local_backing.ptr = read_mem.ptr
|
|
mov qword [backing + Slice_Byte.len], Mem_128k_size ; local_backing.len = Mem_128k_size
|
|
lea rcounter, file ; rcounter = file.ptr
|
|
mov rdata, [path_hello_files_asm + Str8.ptr] ; rdata = path_hello_files.ptr
|
|
mov r8, [path_hello_files_asm + Str8.len] ; r8 = path_hello_files.len
|
|
lea r9, [backing] ; r9 = & local_backing
|
|
call file_read_contents ; read_file_contents <- rcounter, rdata, r8, r9, stack
|
|
cf_end ; }
|
|
%pop calling
|
|
|
|
cf_ctbl ExitProcess ; call-frame ExitProcess {
|
|
xor ecx, ecx ; ecx = 0
|
|
call ExitProcess ; ExitProcess <- rcx, stack
|
|
cf_end ; }
|
|
ret
|
|
%pop proc_scope
|
|
|
|
section .bss
|
|
read_mem: resb Mem_128k_size ; internal global read_mem: Mem_128k
|
|
file: resb FileOpInfo_size ; internal global file: FileOpInfo
|