97 lines
2.2 KiB
Smarty
97 lines
2.2 KiB
Smarty
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"\n\
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/*\n\
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** wrapem.s for PPC\n\
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** 091994 - JHSimon @ IBM\n\
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*/\n\
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\n\
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#include \"kxppc.h\"\n\
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\n\
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\t.pdata;.align 2\n\
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\t.ualong ..wrapit,wrapit.e,0,0,wrapit.b\n\
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\t.reldata;.globl wrapit\n\
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wrapit:\n\
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\n\
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\t.ualong ..wrapit,.toc;.section .text;.align 2;.globl ..wrapit; ..wrapit:\n\
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\n\
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// Put RA & toc in spare slots\n\
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\tmflr\t r11\n\
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\tstw\t r11,16(sp)\n\
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\tstw\t r2,20(sp)\n\
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\n\
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// Buy frame\n\
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\n\
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\tstwu sp,-256(sp)\n\
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\tstw r3,64(sp); stw r4,68(sp); stw r5,72(sp); stw r6,76(sp)\n\
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\tstw r7,80(sp); stw r8,84(sp); stw r9,88(sp); stw r10,92(sp)\n\
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\n\
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wrapit.b:\n\
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\n\
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// Entry: r12 == API id\n\
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\tmr\t r3,r12\n\
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\tmr\t r4,sp\n\
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\tbl .._prelude\n\
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\n\
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// Skip API call\n\
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\tcmpwi r3,0x0\n\
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\tbeq skipcall\n\
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\tlwz\t r2,4(r3)\n\
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\tlwz\t r3,0(r3)\n\
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\tmtctr\t r3\n\
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\n\
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// Restore arg regs real API\n\
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\tlwz r3,64(sp); lwz r4,68(sp); lwz r5,72(sp); lwz r6,76(sp)\n\
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\tlwz r7,80(sp); lwz r8,84(sp); lwz r9,88(sp); lwz r10,92(sp)\n\
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\taddi\t sp,sp,256\n\
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\n\
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\tbctrl\n\
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\tlwz\t r2,20(sp)\n\
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\n\
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// Buy Frame\n\
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\tstwu sp,-256(sp)\n\
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\tstw r3,64(sp); stw r4,68(sp); stw r5,72(sp); stw r6,76(sp)\n\
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\tstw r7,80(sp); stw r8,84(sp); stw r9,88(sp); stw r10,92(sp)\n\
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\n\
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// r4, Nothing important for PPC\n\
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\taddi\t r4,sp,24\n\
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\tbl\t .._postlude\n\
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\n\
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skipcall:\n\
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\n\
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// Restore args\n\
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\tlwz r3,64(sp); lwz r4,68(sp); lwz r5,72(sp); lwz r6,76(sp)\n\
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\tlwz r7,80(sp); lwz r8,84(sp); lwz r9,88(sp); lwz r10,92(sp)\n\
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\n\
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\tlwz\t r0,272(sp)\n\
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\tmtlr\t r0\n\
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\taddi\t sp,sp,256\n\
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\tblr\n\
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\n\
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wrapit.e:\n\
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\n\
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#define ZAPI(id, name) \\\n\
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.pdata;.align 2;.ualong ..z##name,name.e,0,0,name.b ;\\\n\
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.reldata;.globl z##name;z##name:;\\\n\
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.ualong ..z##name,.toc;.section .text;.align 2;.globl ..z##name;\\\n\
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..z##name:;\\\n\
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name.b:;\\\n\
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addi r12,r0,id;b ..wrapit;name.e:\n\
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\n\
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%a ZAPI (%i,%A) ;\n\
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\n\
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.pdata;.align 2;.ualong ..zWrapperNothing,zWN.e,0,0,zWN.b;\n\
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.reldata;.globl zWrapperNothing;\n\
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zWrapperNothing:;\n\
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.ualong ..zWrapperNothing,.toc;\n\
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.section .text;.align 2;.globl ..zWrapperNothing;..zWrapperNothing:;\n\
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zWN.b:;\n\
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\n\
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addi r12, r0,%c\n\
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b ..wrapit\n\
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zWN.e:\n\
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\n\
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\t.extern .._prelude\n\
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\t.extern _prelude\n\
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\t.extern .._postlude\n\
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\t.extern _postlude\n\
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\n"
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