_setjmp.asm
来自「很少见的源码公开的msc51和z80的c编译器。」· 汇编 代码 · 共 330 行
ASM
330 行
;--------------------------------------------------------; File Created by SDCC : FreeWare ANSI-C Compiler; Version 2.3.0 Thu Sep 20 10:57:38 2001;-------------------------------------------------------- .module _setjmp .flat24 on ; 24 bit flat addressingdpx = 0x93 ; dpx register unknown to assemblerdps = 0x86 ; dps register unknown to assemblerdpl1 = 0x84 ; dpl1 register unknown to assemblerdph1 = 0x85 ; dph1 register unknown to assemblerdpx1 = 0x95 ; dpx1 register unknown to assemblerap = 0x9C ; ap register unknown to assembler;--------------------------------------------------------; Public variables in this module;-------------------------------------------------------- .globl _setjmp .globl _longjmp .globl _longjmp_PARM_2;--------------------------------------------------------; special function registers;--------------------------------------------------------_P0 = 0x0080_SP = 0x0081_DPL = 0x0082_DPH = 0x0083_PCON = 0x0087_TCON = 0x0088_TMOD = 0x0089_TL0 = 0x008a_TL1 = 0x008b_TH0 = 0x008c_TH1 = 0x008d_P1 = 0x0090_SCON = 0x0098_SBUF = 0x0099_P2 = 0x00a0_IE = 0x00a8_P3 = 0x00b0_IP = 0x00b8_PSW = 0x00d0_ACC = 0x00e0_B = 0x00f0;--------------------------------------------------------; special function bits ;--------------------------------------------------------_P0_0 = 0x0080_P0_1 = 0x0081_P0_2 = 0x0082_P0_3 = 0x0083_P0_4 = 0x0084_P0_5 = 0x0085_P0_6 = 0x0086_P0_7 = 0x0087_IT0 = 0x0088_IE0 = 0x0089_IT1 = 0x008a_IE1 = 0x008b_TR0 = 0x008c_TF0 = 0x008d_TR1 = 0x008e_TF1 = 0x008f_P1_0 = 0x0090_P1_1 = 0x0091_P1_2 = 0x0092_P1_3 = 0x0093_P1_4 = 0x0094_P1_5 = 0x0095_P1_6 = 0x0096_P1_7 = 0x0097_RI = 0x0098_TI = 0x0099_RB8 = 0x009a_TB8 = 0x009b_REN = 0x009c_SM2 = 0x009d_SM1 = 0x009e_SM0 = 0x009f_P2_0 = 0x00a0_P2_1 = 0x00a1_P2_2 = 0x00a2_P2_3 = 0x00a3_P2_4 = 0x00a4_P2_5 = 0x00a5_P2_6 = 0x00a6_P2_7 = 0x00a7_EX0 = 0x00a8_ET0 = 0x00a9_EX1 = 0x00aa_ET1 = 0x00ab_ES = 0x00ac_EA = 0x00af_P3_0 = 0x00b0_P3_1 = 0x00b1_P3_2 = 0x00b2_P3_3 = 0x00b3_P3_4 = 0x00b4_P3_5 = 0x00b5_P3_6 = 0x00b6_P3_7 = 0x00b7_RXD = 0x00b0_TXD = 0x00b1_INT0 = 0x00b2_INT1 = 0x00b3_T0 = 0x00b4_T1 = 0x00b5_WR = 0x00b6_RD = 0x00b7_PX0 = 0x00b8_PT0 = 0x00b9_PX1 = 0x00ba_PT1 = 0x00bb_PS = 0x00bc_P = 0x00d0_F1 = 0x00d1_OV = 0x00d2_RS0 = 0x00d3_RS1 = 0x00d4_F0 = 0x00d5_AC = 0x00d6_CY = 0x00d7;--------------------------------------------------------; internal ram data;-------------------------------------------------------- .area DSEG (DATA);--------------------------------------------------------; overlayable items in internal ram ;-------------------------------------------------------- .area OSEG (OVR,DATA);--------------------------------------------------------; indirectly addressable internal ram data;-------------------------------------------------------- .area ISEG (DATA);--------------------------------------------------------; bit data;-------------------------------------------------------- .area BSEG (BIT);--------------------------------------------------------; external ram data;-------------------------------------------------------- .area XSEG (XDATA)_longjmp_PARM_2:: .ds 2;--------------------------------------------------------; global & static initialisations;-------------------------------------------------------- .area GSINIT (CODE) .area GSFINAL (CODE) .area GSINIT (CODE);--------------------------------------------------------; Home;-------------------------------------------------------- .area HOME (CODE) .area CSEG (CODE);--------------------------------------------------------; code;-------------------------------------------------------- .area CSEG (CODE); _setjmp.c 28; genFunction ; -----------------------------------------; function longjmp; -----------------------------------------_longjmp: ar2 = 0x02 ar3 = 0x03 ar4 = 0x04 ar5 = 0x05 ar6 = 0x06 ar7 = 0x07 ar0 = 0x00 ar1 = 0x01; _setjmp.c 35; genReceive mov r2,dpl mov r3,dph mov r4,dpx mov r5,b; _setjmp.c 31; genPlus mov a,#0x02 add a,r2 mov r6,a; Peephole 180 changed mov to clr clr a addc a,r3 mov r7,a; Peephole 180 changed mov to clr clr a addc a,r4 mov r0,a mov ar1,r5; genPointerGet ; genGenPointerGet mov dpl,r6 mov dph,r7 mov dpx,r0 mov b,r1 lcall __gptrget mov r6,a; genAssign ; genAssign: resultIsFar = TRUE; _setjmp.c 32; genCast mov ar0,r6; genPointerGet ; genGenPointerGet mov dpl,r2 mov dph,r3 mov dpx,r4 mov b,r5 lcall __gptrget mov r7,a; genPlus inc r2 cjne r2,#0x00,00103$ inc r3 cjne r3,#0x00,00103$ inc r400103$:; did genPlusIncr; genPointerSet mov @r0,ar7; _setjmp.c 33; genMinus dec r0; genPointerGet ; genGenPointerGet mov dpl,r2 mov dph,r3 mov dpx,r4 mov b,r5 lcall __gptrget; genPointerSet ; Peephole 192 used a instead of ar2 as source mov r2,a mov @r0,a; _setjmp.c 34; genAssign ; genAssign: resultIsFar = FALSE mov _SP,r6; _setjmp.c 35; genRet mov dps, #0x01 mov dptr, #_longjmp_PARM_2 movx a,@dptr mov dpl,a inc dptr movx a,@dptr mov dph,a mov dps, #0x00; genLabel 00101$:; genEndFunction ret; _setjmp.c 38; genFunction ; -----------------------------------------; function setjmp; -----------------------------------------_setjmp:; _setjmp.c 0; genReceive mov r2,dpl mov r3,dph mov r4,dpx mov r5,b; _setjmp.c 43; genCast mov r0,_SP; genPointerGet mov ar6,@r0; genPointerSet mov dpl,r2 mov dph,r3 mov dpx,r4 mov b,r5 mov a,r6 lcall __gptrput; genPlus inc r2 cjne r2,#0x00,00103$ inc r3 cjne r3,#0x00,00103$ inc r400103$:; did genPlusIncr; _setjmp.c 44; genCast mov r6,_SP; genMinus mov a,r6 dec a mov r0,a; genPointerGet mov ar6,@r0; genPointerSet mov dpl,r2 mov dph,r3 mov dpx,r4 mov b,r5 mov a,r6 lcall __gptrput; genPlus inc r2 cjne r2,#0x00,00104$ inc r3 cjne r3,#0x00,00104$ inc r400104$:; did genPlusIncr; _setjmp.c 45; genPointerSet mov dpl,r2 mov dph,r3 mov dpx,r4 mov b,r5 mov a,_SP lcall __gptrput; _setjmp.c 46; genRet ; Peephole 181 used 16 bit load of dptr mov dptr,#0x0000; genLabel 00101$:; genEndFunction ret .area CSEG (CODE)⌨️ 快捷键说明
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